indian mega project

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National Report on Concrete Structures in India 2006 - 10

NATIONAL REPORT ON CONCRETE STRUCTURESIN INDIA 2006 - 2010

The Third International fib CongressWashington DC, U.S., 2010

Presented by the Indian Member Group

The Institution of Engineers (India)8 Gokhale Road

Kolkata 700020, IndiaPh : +91-33-22231979

E-mail : [email protected] : http://www.ieindia.org

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MESSAGE The Institution of Engineers (India), IE(I), founded in 1920 and granted a Royal Charter by the British Crown in 1935 is internationally one of the largest multi-disciplinary bodies of engineers’ having a membership of over 646000 out of which Civil Engineers form the largest group of approx. 40%. It is mainly to give international exposure to our civil engineers that IE(I) has taken membership of the fib [fédération internationale du béton]. In the year 1986, IE(I) had organised a Congress of the FIP (Fédération Internationale de la Précontrainte) which was attended by about 2600 delegates. It was perhaps the biggest Congress in the history of the FIP.

During the 2nd fib Congress, at Naples, Italy in 2006, the President of IE(I) had invited fib to hold the fib-Congress in India in the year 2014. The Presidium of fib has been kind enough to realise the importance of holding the next congress in India (after the fib-Congress 2010 at Washington) in light of the accelerated developmental efforts in a country where the economy is growing at a pace of 8 to 9% annually, and concrete technology is contributing immensely in these efforts. India as a country is already the second largest consumer of cement.

I am confident that the national report which is being presented will showcase the developments which had taken place in last four years in India from 2006 to 2010 which is indicative of even greater development that will be coming up in next fours years before the next Congress in 2014.

I hope that our National Report will be of great interest to the international construction industry who are invited to join us in our efforts.

MADAN LAL

______________________________________________________________________________ “PRATIKSHA”, Vatika Parisar, Vijaynagar, Rukanpura, Patna 800 014Ph: (0612) 6570612, Mobile: 9934333598, E-mail: [email protected]

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FOREWORD I take the opportunity of the 3rd International fib Congress being held in Washington to present the National Report on Structural Concrete in India covering the period between successive fib Congresses 2006 and 2010. This period is very important to India from the point of view of the growth of basic infrastructure in the fields of Roads, Railways, Hydro-Electric, Thermal and Nuclear Power Generation, Ports and Urban Infrastructure apart from conventional applications to the Industrial and Housing sector. The morale of the Indian Construction Industry is very high at the moment and it is facing the future with confidence while entering into a new era of economic betterment. This is in spite of some difficulties faced by them due to the economic crisis which arose all over the world in 2008. Their enthusiasm is heartening and it reminds me of early years in India after winning its independence in 1947. The period 1950 to 1956 covered by the first five year plan of the Govt. of India was the beginning of planned development of infrastructure in the country. The Indian Construction Industry joined National efforts keeping high hopes and belief in the fruit of its efforts. The then Prime Minister of India, Pandit Jawaharlal Nehru, had called major infrastructure projects: ‘Temples of India’. Through subsequent successive five year plans, which outlined and guided the Master Plan of development, these efforts continued relentlessly till the present stage. Very soon, we will be completing the 11th five year plan and start with the 12th five year plan. Looking back to these 60 years, one can see the results of the enormous efforts put in by the Indian Engineer whose main tool of construction was structural concrete in all its manifestations like plain concrete, reinforced concrete, pre-stressed concrete and high performance concrete. We learnt new technologies like pre-stressed concrete from the developed countries and adopted them for our use. The process of sharing knowledge and know how is still continuing and it will continue into the future.

This national report covers the period mentioned above and seeks to inform the international community through a sample of large projects that we have completed during this period. The construction scenario is upbeat. We are already the second largest consumer of cement in the world, next only to China. The dynamic leadership of our current Prime Minister Dr. Manmohan Singh - who is the architect of the opening of the Indian economy to the world, has resulted in a very large inflow of investments from abroad to the Indian economy and has also given opportunities to many international consultants and contractors to participate in our developments and obtain business for themselves. The Government of India have added their own funds and borrowing from the World Bank and the Asian Development Bank.

The Prime Minister, Dr. Manmohan Singh promises the country, that in spite of the set back to the world economy, India will achieve a growth rate of 9% in GDP before the next financial year and this will be maintained. This promise of a non-political economist who got his Tripos at Cambridge and who is at the helm of affairs is the basis of our confidence in anticipating that many more structural concrete and other projects will come up in the near future, which is inevitable given the urgent need to upgrade the quality of life of our people and the economic prosperity of the country, which is expected to be a Developed Country by 2020.

The prediction of Mr Laxmi Mittal (of Indian Origin), who works and operates from London, the biggest Steel Industry in the World, is that the rate of growth of the GDP of India will rise to 10% as the present policy of Public Private Partnership takes a fuller participation in Building and operating Infrastructure Projects in India.

______________________________________________________________________________ Off: STUP Consultant P. Ltd, 1004-5, Raheja Chambers, Nariman Point, Mumbai - 400 021

Ph: 91 (22) 40868686 email: [email protected]

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The fib has recognised the primary position of the Indian Construction Industry in the coming years and has awarded the fib-Congress 2014 to Mumbai, India. This decision, I hope will be formally announced at the end of the fib-Congress 2010 at Washington. The main highlight in the Indian construction scenario in the last 60 years is its striving for economy of use of materials and so minimising the cost of projects. European, American and other developed countries had also started with a similar approach of economising materials just after the conclusion of the Second World War in which period reconstruction of war affected infrastructure and national building activities to achieve higher standards of living called for a large number of projects to be taken up in a relatively short period of time. However, unlike in India, these countries had a shortage of labour, and they had resorted to minimising cost of the project by minimising the labour component and maximising the mechanisation of construction. After a gap of two or three decades, this trend is again voluntarily changing. There is serious discussion amongst engineers about the sustainability of construction as per the Developed country Model and optimising use of materials - looking at it from the angle of environmental impact of the overuse of natural resources. This is evident from the number of papers in many international conferences, highlighting this need. In India we had all along followed this policy of conserving materials, and only in the last few years have resorted to a higher degree of mechanisation in major projects, which have to be completed within a short period of time. In earlier years the typical construction period for medium to large sized projects was in the range of 3 to 5 years, which now is being targeted to be within 2 to 3 years. Our nuclear power projects have already achieved a record of sorts, by going on stream from, ground break-up to commissioning within five years, which favourably compares with international achievements. The relevance of these thoughts and the opportunities the country offers to the international construction industry will be clear on perusal of the National Report which is submitted in the subsequent pages.

The President of the Institution of Engineers and I take this opportunity to invite the International Community of Educational Institutions, Researchers, Consultants, Contractors and Investors to join us In our efforts for lifting the standard of living and quality of life of over 118 million people, which represents 18% of the world population. The Indian Population is expected to stabilize at 150 million people by the year 2050, while China would have already stabilized at 120 or 125 million people.

In the last century, the USA was the World’s largest economy and also had the World’s largest Construction Industry because it had 5 times the population of the larger Nations who now form the European Economic Community – essentially because of the USA’s greater Population size.

This is also why India is expected to become the World’s largest Economy towards the third quarter of this Century and its Construction Industry will then also become the largest in the World.

With best wishes and regards to all reading this report,

C.R. Alimchandani

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GROUP GROUP TITLE AND PROJECTS

GROUP I : URBAN INFRASTRUCTURE (METROS / MONORAILS / ELEVATED CORRIDORS / FLYOVERS / SATIS / ISBTs)

Railway Station Area Traffic Improvement Scheme (SATIS) for Thane Railway • Station (Maharashtra)Construction of Grade Separator at Mukarba Chowk, Delhi• Lajpat Nagar Flyover, Delhi• Underpass Along West of Chord Road at The Intersection of Magadi Road • –Chord Road, BangalorePanipat Elevated Highway• P.V.Narasimha Rao Elevated Corridor at Hyderabad (11.6kms.Length)•

GROUP II : WATER SUPPLY / IRRIGATION / HYDRO POWER PROJECTSGhatghar Pumped Storage Scheme Lower RC Dam• Gosikhurd Spillway, Maharashtra• IIIA Mumbai Water Supply Project, Mumbai• Concrete Volute Pump Houses• 400 MW Vishnuprayag Hydropower Station of JPVL• Tala Hydro Power Dam, Bhutan.• 1000 MW Karcham- Wangtoo•

GROUP III : THERMAL / NUCLEAR POWER PROJECTSInduced Draft Cooling Towers at Bhilai• Construction of Inner Containment Dome Reactor Building - Kaiga Atomic Power • ProjectKudankulam Nuclear Power Project, Tamil Nadu• Containment Structures of Rajasthan Atomic Power Projects (RAPP)• Two 173 m Tall Natural Draught Cooling Towers for 2 x 600 MW Thermal Power • Project at Hisar, Haryana, IndiaTwo 107 m Tall Natural Draught Cooling Towers for Rajasthan Atomic Power • Project, India275 m Tall Triple Steel Flue RC Chimney for 6 x 600 MW Sasan Ultra Mega • Power Project, Madhya Pradesh, IndiaIndira Sagar Dam, Irrigation and Hydro-electic, Madhya Pradesh•

GROUP IV : AIRPORTS

Bengaluru International Airport• Hyderabad International Airport•

GROUP V : MARINE PROJECTS / PORTSOffshore Platforms• Construction of Mooring Terminal Facility at Cuddalore• Development of Second Container Terminal at Chennai Port• Ethylene Terminal Jetty at Karaikal•

GROUP VI : BRIDGES / VIADUCTSSecond Vivekananda Bridge Tollway – Sister Nivedita Setu• Railway Bridge Over River Mayurakshi (Jharkhand)• Balason Bridge at Darjeeling • Siddapur Bridge, Coorg, Karnataka • Pir Panjal Railway Tunnel, Jammu & Kashmir• Major Bridge Across River Krishna• Major Bridge Across River Tungabhadra• Ganga Bridge at Allahabad• Grade Separated Interchange at Junction of NH-45-IRR at Kathipara, Chennai• Perambur Flyover, Chennai• Interchange at Padi, Tamil Nadu• Rail Connectivity from Idapalli to ICTT at Vallarpadam •

SECTORS

PG. NO.

7 - 11

12 - 15

16 - 22

22 - 23

24 - 26

27 - 34

7

12

1616

171819

19

20

21

2223

24

272828292930303132333334

242526

131314141515

89

19

1011

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GROUP VII : REPAIRS / REHABILITATION PROJECTSRehabilitation of Mahanadi Bridge• Rebuilding of Bridge No.586 on Western Railway at Vishvamitri, Vadodara• Rehabilitation of Mahatma Gandhi Setu, Patna•

GROUP VIII : ROADS / HIGHWAYS / EXPRESSWAYSFour - laning of Satara – Kolhapur State Border Section of NH-4 from Km 725 to Km • 592 / 240 – Package VOuter Ring Road (Four lane) Between Mysore Road to Magadi Road, Bangalore•

GROUP IX : LARGE PROJECTSBandra-Worli Sea Link,Mumbai• Jogeshwari Vikroli Link Road (ICB Contract : World Bank Funded)• Metro Rail, Mumbai• Elevated Road Along Ambedkar Road, Mumbai• Design of Elevated Viaduct- 5.225kms. and Five Elevated Stations – BC-7• Viaduct Portion of Stretch Adjacent to Sultanpur Station to Qutab Minar – BC-20• Pragathi Maidan Bridge• Construction of Extradosed Bridge for Metro Rail Project at Indraprastha•

GROUP X : BUILDINGS Cognizant Campus at MEPZ, Chennai• TCS Technopark, Siruseri, Chennai• Construction of a new complex for Tamilnadu Legislative Assembly at Chennai, India• Vidhana Soudha South Block – Vikas Soudha at Bangalore• Shiv Chhatrapati Sports Complex at Balewadi, Pune• Mass Housing Project at Versova, Mumbai• Rajiv Gandhi AC Indoor Stadium, Guwahati, Assam, India• Corporate Office Building for Patni Computer Systems at Airoli, Navi Mumbai• Development of IT Campus, Chandigarh, India•

SECTORS

35 - 36

37

38 - 43

44 - 49

35

37

37

38

444546474748484949

39404041424243

3536

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GROUP I : URBAN INFRASTRUCTURE GROUP I : URBAN INFRASTRUCTURE

Thane Railway Station located immediately north of Mumbai is used by over two million passengers everyday from the mainline and suburban rail services. It is connected to large industrial, commercial and residential areas of Thane City, spread over 100 Sq.kms, by public and private road transport. In absence of sufficient space outside the station, extra area was created by constructing over 10,000 sq.ft. of deck area at higher level, Segregation of public transport system like buses and private transport system like rickshaws, cars, and pedestrians was achieved. This facility is integrated with Railway footover bridges for pedestrian

Railway Station Area Traffic Improvement Scheme (SATIS) for Thane Railway Station (Maharashtra)

benefits.

The deck is constructed using precast prestressed ‘U’ girders pretensioned in yard. Over 400 pretensioned girders were used to create 1.10 km long 2 lane vehicular bridge and 0.35 km long foot bridge. Girders are kept touching each other to create clean look at soffit level. Girders are supported on reinforced concrete piers without conventional pier caps through cross diaphragms giving additional road width at lower level.

Salient featuresFoundation : 1.0 m dia cast in-situ bored

piles anchored in rock Substructure: Reinforced ConcreteSuperstructure: Pretension ‘U’ Girder with touching soffit.

Owner: Thane Municipal Corporation, Thane, Maharashtra StateContractors: Nagarjuna Construction Co. Ltd..Engineering Consultants: Structcon Consultants Project Management Consultants: Consulting Engineering Services (I) Pvt. LtdCompletion Time: 24 months (2009)

Award Received: ‘Best Project’ funded under Jawaharlal Nehru National Urban Renewal Mission (JNNURM)

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The work involves the Construction of Main flyover including Loops, Slip Roads, Bridges, Subway, Bus bays, Cycle Tracks, Drainage, Electrical, Landscaping and Allied Works

Total numbers of Piles (Nos): 835 Total numbers of Pile caps (Nos): 53 Total numbers of Piers (Nos): 44 Total numbers of Pier caps (Nos): 16 Total length of Slip roads (RM): 2759Total length of Loop roads (RM): 2057 Total length of Main Flyover (RM): 635.50 Total length of Voided slab (RM): 843.36 (32 spans)Total area of Voided slab (SQM): 7593Total length of Ground Supported Box (RM): 519 Cycle Track (RM): 2500Crash Barrier (RM): 11810

Construction of Grade Separator at Mukarba Chowk, Delhi

GROUP I : URBAN INFRASTRUCTURE

Owner: Public Works Department, DelhiContractors: Afcons Infrastructure Limited, Mumbai.Engineering Consultants: Tandon Consultants Pvt. Ltd, New DelhiThird Party Inspection Consultants: Engineers India Ltd.Completion Time: 24 months (2009)

Highlights:1450 cum of continuous concreting •of voided slab in the loop of 4th quadrant in a record time of 24 hours.Successful use of Slip Form Paver •technique for construction of RC crash barrier (approx 10 Km).Achieved a peak progress of •constructing 200 nos. (Average length = 25 m) of 1200 mm

diameter piles in a month using integrated hydraulic rig.

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This flyover from Lajpat Nagar to Srinivaspuri covers three intersections at Lajpat Nagar, Captain Gaur Marg and Srinivaspuri, decongesting the area to a large extent. Three pedestrian subways at the aforesaid intersections and developed the service roads in the project corridor are also constructed.

The flyover is designed for six-lane traffic with a divided carriageway width each of 9m. The total length of the flyover is 1180m with a 823m on stilts.

The typical superstructure is Four Span Continuous Unit of 42-m, Constructed by Span by Span Segmental Construction Method and the retained approach embankments are by Reinforced Earth Walls.

Lajpat Nagar Flyover, Delhi


The site is located in the western part of the Bangalore and is at the intersection of Chord Road with Magadi Road ,Magadi road and Chord Road Junction is a four legged skew type intersection. The underpass is a four lane divided two way underpass along Chord Road and 2 Lane one way flyover with an up ramp from Vijayanagar towards Majestic (Bangalore Bus Station)

Underpass Along West of Chord Road at the Intersection of Magadi Road-Chord Road, Bangalore

Owner: Delhi Tourism & Transportation Development Corporation – (DTTDC)Contractors: Gammon India Limited.Consultants: Larsen & Toubro Ramboll Consulting Engineers Limited

Client: Bangalore Development Authority, BangaloreContractor: East Coast Constructions and Industries LimitedConsultants: STUP Consultants P.Ltd. PMC : STUP Consultants P.Ltd.

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Panipat Elevated Highway is a part of National Highway No. 1 connecting Delhi to Amristar and going up to Indo - Pakistan border. It connects the Northern part of the country including states of Jammu and Kashmir, Punjab, Himachal Pradesh and Haryana with Delhi and rest of the country. The project section through Panipat is a serious bottleneck to the speedy, smooth and safe flow of traffic mainly on account of congested junctions and mixed traffic pattern of Panipat.

The project road covers a length of about 10 km. This includes 3.4 km long 6 lane elevated structure (3048m of viaduct and 360 m of ramps).

The foundation of this bridge consists of 1282 piles done by rotary rig method

Panipat Elevated Highway


over which pile caps and piers are built. I-Girders are pre cast and transported to site in specially modified trailers, where the erection work was completed using Gantries and high capacity cranes.

The precast deck slabs, in addition to the usage as shuttering, have been used as a load bearing member in combination with cast-in-situ concrete. This has led to the time and cost reduction for completion of the project.

Owner: NHAIConcessionaire: Larsen & Toubro Ltd Panipat Elevated Corridor Limited (Larsen & Toubro Ltd PECL).Contractors: Larsen & Toubro Ltd ECC Division.Contractor’s Consultant: Larsen & Toubro Ltd Ramboll Consulting Engineers Limited.Consultants: Larsen & Toubro Ltd Ramboll Consulting Engineers Limited.

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This Elevated Expressway of 11.670 Kms is from Mehidipatnam to Aramghar Junction on NH 7 along with a trumpet interchange for the approach road to the International Airport .

The project basically comprises (a) Construction of Elevated 4-lane divided carriageway with median of 1.2m, from Sarojini Devi Eye Hospital, Mehdipatnam to Aramgarh junction on NH-7 (along the ring road) along with main /intermediate ramps and Underpass at Aramgarh junction. (b) Construction of Trumpet interchange on NH-7 for the approach road to the proposed International Airport at Shamshabad and (c) Strengthening, widening of Inner Ring Road (from Rethibowli junction to Aramgarh junction) from 4-lane to 6-lanes.

The method of construction is by assembling match cast segments by prestressing using overhead lauching.

P. V. Narasimha Rao Elevated Corridor at Hyderabad (11.6 kms. Length)

Client : Simplex Infrastructure Ltd /HUDAContractor : Simplex Infrastructure Ltd / HUDAConsultants: STUP Consultants P. Ltd. PMC : SPAN Consultants Ltd.


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Ghatghar Pumped Storage Scheme (GPSS) located in the State of Maharashtra and is owned by the State’s Water Resources Department. GPSS involved construction of two reservoirs, having head of 500 m, Underground Powerhouse housing 2 units of 125 mw. The scheme with 250 mw generation will be used as Peak Power Station. Power Station is designed to generate 6 hrs of daily power and 7 hrs of daily pumping back to the upper reservoir.

At GPSS three RC Dams were built, 8m high Saddle Dam No.1, 14.5 m high Upper Dam and 85 m high Lower Dam.

To its record the completed Lower Dam was 9th Fastest built RC Dam in the world, when it was completed in 2007. Over 600,000 cubic meters of concrete were placed with Roller Compacted Concrete method. With monthly RC placement of 90103 Cu.m was achieved averaging about 62,690 Cu.m per month. RC placement for Lower Dam of height of 85 m was completed in record 12 working months.

Awards: National Award for Fly Ash Utilisation for more than 100,000 tonnes.

Ghatghar Pumped Storage Scheme Lower RC DamGROUP II : WATER SUPPLY / IRRIGATION / HYDRO POWER PROJECTSGROUP II : WATER SUPPLY / IRRIGATION / HYDRO POWER PROJECTS

Owner: Water Resources Dept., Govt. of Maharashtra, India.Contractors: Patel Engineering Ltd, Mumbai, India. Roller Compacted Concrete: SENBO Engineering Ltd.Engineering Consultants: J-Power, Japan in association with TCE Engineers (P) Ltd, India & CWC, IndiaOwners Consultants: Malcom Dunstan & Associates, UK

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The Gosikhurd Spillway is located on river Wainganga, in Bhandara District, near Nagpur. The total length of dam of the spillway is 11.35 Km, with Flood discharge of capacity 67,300 cumecs

The project brings about 1, 90,000 Ha of land under irrigation, which has been a draught prone area.

Gosikhurd Spillway, Maharashtra

IIIA Mumbai Water Supply Project, Mumbai, 3.60 m dia tunnels, about 12 km. in length, were constructed using two modern full face Rock Tunnel Boring Machines; Reinforced cement concrete lining with 3m finished dia using CIFA shuttering. It extend from Bhandup Complex to Malad reservoir and upto Charkop in Mumbai.

IIIA Mumbai Water Supply Project, Mumbai

The project won the “Best Performance” for the year 2005 – 06 on the occasion of Engineers’ day from the Vidarbha irrigation Development Corporation (VIDC). The project also won the ‘Best Concrete Structure’ Award, 2008 of the Indian Concrete Institute.

Client: Vidarbha Irrigation Development CorporationContractor: Hindustan Construction Company LtdFunding: Vidarbha Irrigation Development Corporation

GROUP II : WATER SUPPLY / IRRIGATION / HYDRO POWER PROJECTS

Owner: Brihan Mumbai Municipal CorporationDesigner/Consultant: Tata Consulting EngineerContractor: Hindustan Construction Company LtdFunding: Mumbai Metropolitan Region Development Authority (MMRDA)

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Concrete Volute Pump are being commonly used in recent years for circulating water system of using normal as well as sea water.

The picture shows an installation at Saurashtra Branch Canal of Narmada Main Cannal, which uses normal water. Similar CW system have been provided at Sipat Super Thermal Power Station involving 3 Volute Pump and Barh Super Thermal Power Station involving 6 Volute Pump.

Sea water pump house involving 2 nos. of Volute Pumps are provided at Kalapakkam.

Sea water pump house at Salaya involving 4 nos. of Volute Pumps

Concrete Volute Pump Houses

The 400 MW Vishnuprayag Hydro-electric Project (BOO) was commissioned in October,2006, a run-of-the river project located across river Alaknanda in District Chamoli of Uttarakhand. The Project, utilizing the waters of river Alaknanda, has an underground power station with an installed capacity of 400MW (4x100MW).

400 MW Vishnuprayag Hydropower Station of JPVL


Owner: National Thermal Power Corporation Ltd (at Sipat / Barh) / Bharatiya Nabhikiya Vidyut Nigam Ltd (at Kalapakkam) / Essar Power Gujarat Ltd (at Salaya)Supplier of Pump: Kirloskar Brothers Ltd.Contractor: Hindustan Construction Company Ltd (at Saurashtra Branch Canal) / Kirloskar (at Sipat / Barh / Kalapakkam / Salaya)

Contractor: Jayprakash Associates Ltd

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The 1000 MW Karcham-Wangtoo Hydro-electric Project is located in Himachal Pradesh and is built on BOO basis. This is the India’s largest Private Hydropower station in making. It is envisaged as run-of-the-river project and is being constructed on River Satluj in the District Kinnaur.

1000 MW Karcham- Wangtoo

The 1020 MW Tala Hydro Power Project amongst the largest Hydro Power Project in South asian region was implemented as a part of bilateral trade agreement between Govt. of India and Royal Government of Bhutan.

A 92 M high concrete gravity dam and 13.664 Km of a 6.80 m dia head race tunnel for the project was built, employing the most modern methods. All the underground work was done by drill

Tala Hydro Power Dam, Bhutan.


and blast method. The fully mechanized tunneling operation used state of the art equipments like two boom Drill Jumbo’s, Boltec, Low Profile Dumper trucks, shotcreting pump etc. The lining work of the Head Race Tunnel was carried out using the unique mobile form work system. It was one of the major underground tunneling projects undertaken in the unpredictable Himalayan range throwing almost all kinds challenges during execution.

Owner: Tala Hydro Electric Project Authority, BhutanDesigner/ Consultant: Water & Power Consultancy Services (India) Ltd.(WAPCOS)Contractor: Hindustan Construction Company LtdFunding: Tala Hydro Electric Project AuthorityStart Date: 29-Nov-98End Date: 30-Dec-06

Contractor: Jayprakash Associates Ltd

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Two Nos. of Induced Draft Cooling Towers at Bhilai Thermal power Station (2 X 250 MWe) consists of ten cells, each having plan dimensions of 15m X 20m. The towers are of counter flow type and cater for flow rate of 34500 m3 / Hr.

Induced Draft Cooling Towers at Bhilai

GROUP III : THERMAL / NUCLEAR POWER PROJECTSGROUP III : THERMAL / NUCLEAR POWER PROJECTS

The Inner containment dome of the reactor building is a 42.56 m diameter prestressed concrete dome with 4 openings of 4.1m diameter to facilitate any replacement of stream generators during operational stage of reactor. The dome consists of a ring beam of 4.1 meter deep and a shell of 500 mm thick. Concrete of grade M-45 is used for the construction of this dome. Total quantity of concrete for dome and ring beam is 2130 cum. Concreting of dome including the ring beam was done in nine pours using state of the art methods of construction including pumping of concrete to a height of 50 meters by concrete pumps and placers.

The Entire dome supporting steel structure was assembled on ground to form eight large segments and eight small segments. Plywood shutter were placed over the assembly. Weight of the each assembly was approximately 65t. Thereafter the large segments were lifted from the ground assembly and erected in placed one by one by 650 t capacity crane.

Concrete was transported from batching plant to site, nearly 0.75 km away, by 4 nos. 6 cum transit mixers and one transit mixer was kept as standby. Concrete was placed into the structure to height 50 meters using two nos. Schwing pumps and concrete bucket with tower crane.

Construction of Inner Containment Dome Reactor Building - Kaiga Atomic Power Project

Owner: Nuclear Power Corporation of India Ltd.Contractors: Gammon India Limited.Engineering Consultants: STUP Consultants P. Ltd.

Owner: National Thermal Power Corporation Ltd.Contractor: Gammon India Ltd.Consultants: Spectrum Techno Consultants (P) Ltd.

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KKNPP is first of it’s kind in India, being implemented in technical collaboration with Russian Federation. This state of art technology based on light water reactors, each of which is 1000MWe capacity, and will supply electricity to the southern grid. These reactors have many advanced features being implemented for the first time in the VVER design which assures a high level of safety and reliability in operation. This is the first Indian Nuclear Power Project with steel liner on the inside face of containment structure. A view of the dome liner supporting system with passive reinforcement is shown here. The prestressing system used for the containment is 55C15, with a breaking load of 1535 tons per cable. Execution of 55C15 Prestressing System at site is a unique experience. Strict quality

Kudankulam Nuclear Power Project, Tamil Nadu

GROUP III : THERMAL / NUCLEAR POWER PROJECTS

Owner: Nuclear Power Corporation of India Ltd. Designer/Consultant: Supplier’s Design

control measures are adopted during construction to meet the design intents.

Contractor: Hindustan Construction Company Ltd, MumbaiFunding: Nuclear Power Corporation of India Ltd.

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A new record is set at RAPP-5&6 by constructing Raft of Unit-6 reactor building in 53 days from the first pour to its completion. This was possible by improved construction practices and use of latest technologies in construction. The improved design indeed helped in safe and speedy implementation of project. The Inner Containment (IC) is designed by NPCIL. The IC is made of prestressed concrete, stressed with 19K13 prestressing system, and is designed to withstand an internal pressure of 1.73kg/sq.cm, due to any unforeseen incidents occurring within the building. In addition, extreme environmental conditions, including Safe Shutdown Earthquake (SSE) and extreme wind and hydrostatic uplift forces are considered as part of the design basis.

Construction of Reactor Building of Unit-6 (in progress), is seen in this picture, with concrete placer boom standing within the IC building. Major embedded parts for safety related piping, equipment are manufactured at an off-site shop and brought to site, and installed precisely at the earmarked locations before concreting. Four level quality assurance programme is adopted at site to ensure stringent quality control being. These ICs are later pressure tested to ensure their design adequacy.

View of site after completion of major structures of Units 5 and 6 is shown beside. Both the reactor buildings and RC Ventilation Stack (100m height) are seen in the front and two of the Natural Draught Cooling Towers (NDCT) are in the back. These two units (5&6) thus generate 2*220MWe for the national grid.

Containment Structures of Rajasthan Atomic Power Projects (RAPP)


Owner: Nuclear Power Corporation of India Ltd.Contractors: Hindustan Construction Company Ltd.Consultants: Nuclear Power Corporation of India Ltd.Proof Checking: STUP Consultants P. Ltd

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Two 173 m tall Natural Draught cooling towers are constructed for 2x600 MW Thermal Power Project at Haryana, India. The base diameter of tower shell is 129 m and top diameter is 73.5 m. These towers are tallest in India when commissioned.

Each cooling tower is designed to serve one of the twin 600 MW units. Water flow through each cooling tower is 72,500 Cu.m/hr, and it is cooled from 440C to 330C. Pre-stressed Concrete (PSC) laths are used as an internal fill for achieving required cooling; exchanging heat with the up draught of air generated by the chimney effect of hyperbolic shell of NDCT.

These towers are designed for 180 km/h basic wind speed as per the relevant Indian Standards. The design of the tower shell is based on the Indian and British codes. The codal wind load forces on the tower considered in the design have been verified by conducting wind tunnel tests. Seismically the project is in Zone-IV as per seismic zoning of Indian Standard, characterized by ground

Two 173 m Tall Natural Draught Cooling Towers for 2 x 600 MW Thermal Power Project at Hisar, Haryana, India


Two 107.4 m tall Natural Draught cooling towers are constructed for Rajasthan Atomic Power Project, India. The base diameter of tower shell is 88.2 m and top diameter is 53 m.

Water flow through each cooling tower is 36,500 Cu.m/hr, and it is cooled from 450C to 320C. PVC fill cross fluted type is used as an internal fill for achieving required cooling; exchanging heat with the up draught of air generated by the

Two 107 m Tall Natural Draught Cooling towers for Rajasthan Atomic Power Project, India

chimney effect of hyperbolic shell of NDCT.

These towers are designed for 181 km/h basic wind speed as per the relevant Indian Standards. The design of the tower shell is based on the Indian and British codes. Seismically the project is in Zone-II as per seismic zoning of Indian Standard, characterized by ground acceleration 0.1g during Maximum Considered Earthquake (MCE).

The shells of towers were constructed using jump-form shuttering technique. Centrally located tower crane was erected for transporting construction material and equipment. Each of the Cooling Towers was completed in 18 months.

Owner: Nuclear Power Corporation of India Ltd.Client: Gammon India Ltd.Consultant: STUP Consultants P. Ltd., Mumbai

acceleration 0.24g during Maximum Considered Earthquake (MCE).

The shells of towers were constructed using jump-form shuttering technique. Centrally located tower crane was erected for transporting construction material and equipment. Each of the Cooling Towers was completed in 18 months.

Owner: Haryana Power Generation Corporation, HaryanaClient: Reliance Energy Ltd., NoidaConsultant: Desein Consulting Engineers, New Delhi & Central Electricity Authority, New DelhiDesigner: STUP Consultants P. Ltd., Mumbai

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Two numbers of 275 m tall triple steel flue RC chimneys with diameter varying from 24 m on top and 36.7m at base and founded on annular raft are under construction at Sasan, India, for 4000MW Thermal Power Station. Each chimney is designed to house three steel flues, each flue serving one of the three 660MW units.

Chimney shell is designed for basic wind speed of 150 kmph. In order to reduce the effects of across wind loads fundamental frequency of the chimney shell is lowered by gradually increasing the thickness of shell in top portion. For seismic design,

275 m Tall Triple Steel Flue RC Chimney for 6 x 600 MW Sasan Ultra Mega Power Project, Madhya Pradesh, India


Chimney is located in Zone-III as per zoning given by IS:1893-2001, which is characterised by Maximum Considered Earthquake (MCE) ground acceleration of 0.16 g.

Each of the steel flue has inside diameter of 7.1 m. Steel flues are ‘hung type’ and are suspended in segments from five intermediate platforms spaced 45m apart. Expansion compensators are provided at bottom of each flue segment to allow relative thermal movements between the steel flue and RC shell. The lateral restraints to ensure consistent deformations and transfer horizontal

forces arising from wind and earthquake are provided at these platform levels. For achieving comfortable working conditions within the annular space between chimney and flues, temperature of air in this space is maintained below 450C.

Owner: Sasan Power LtdClient : Reliance Infrastructure Ltd., NoidaConsultant: STUP Consultants P. Ltd., Mumbai

21


The Narmada Hydroelectric Development Corporation Limited (NHDC, a joint venture of the National Hydroelectric Power Corporation and the Government of Madhya Pradesh) is constructing the Indira Sagar Dam (earlier known as the Narmada Sagar Dam) on the river Narmada. The Indira Sagar Dam is located in the Khandwa District of Madhya Pradesh. It is a concrete gravity dam, 653 m in length, with a maximum height of 92 m. The spillway portion of the dam consists of 20 Nos. of 20 m wide

Indira Sagar Dam, Irrigation and Hydro-electic, Madhya Pradesh

gated spillways with 21 Nos. of piers. The spillway gates are of the sector type, and are lifted hydraulically. The gates are 20 m 17 m in size, and extend from pier to pier. Each pier is 5 m in width.

Prestressed replaceable anchors are provided for the spillway gates. Since prestressed gate anchors and load due to hydraulic hoist had not been considered in the original design. The pier portion of spillway has been re-engineered.

Owner: Narmada Hydroelectric Development Corpn. LtdConsultant: CWC and STUP Consultants P. Ltd., MumbaiContractor: Jaiprakash Associates Ltd.


22


The Bengaluru International Airport with its two parallel runway system, allows the airport to grow up to 50 million passengers a year. Spread across 4300 acres, this airport has of a terminal building with an innovative precast and pre-stressed concrete shell roof element, 8 passenger boarding bridges, 1 double arm aerobridge and 9 remote bus gates with a runway of 4000m in length and an efficient taxiway system.

Bengaluru International AirportGROUP IV : AIRPORTS

GROUP IV : AIRPORTS

The passenger terminal building is based on a linear terminal concept with Apron capacity of 18 aircraft stands and 5 passenger boarding bridges for Phase–1.

Expected domestic passengers and International passengers per day is 23,400 and 7,800 respectively. The passenger terminal building of area 31000 m2 with clear height of 15.75m has generous spans which allow for

airport functions and commercial areas to be laid out efficiently.

Owner: Bangalore international Airport Limited (BIAL).Contractors: Larsen & Toubro Limited.Engineering Consultants: Engineering Design and Research Centre (EDRC) of ECC Division, Larsen & Toubro Limited.

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Constructed on a Greenfield site, approximately 30 kilometers south of downtown Hyderabad, the New Rajiv Gandhi International Airport is built on an area of 5,400 acres and has the longest runway of 4260m with code-F features among Indian airports and able to handle the world’s largest passenger aircraft, the Airbus A380. It has a capacity to handle 12 million passengers.

The passenger terminal has 100,000 Sqm. floor area to facilitate rapid transit between its Domestic and International concourses.

The domestic and international cargo processing and storage facility is designed with a clear height of 14m and the total built-up area of 10070 Sqm.

The roof has been designed with a seamless steel roofing system extended upto a length of 72m and a width of about 400mm cut using special rollers. Smoke extraction of about 33% in PTB is achieved by providing roof mounted smoke extractors.

Hyderabad International Airport

GROUP IV : AIRPORTS

Owner: GMR Group in a public-private partnership which also includes the state government of Andhra Pradesh, Airports authority of India and Malaysia Airports Holdings Berhad.Contractors: Larsen & Toubro Limited.Engineering Consultants: Engineering Design and Research Centre (EDRC) of ECC Division, Larsen & Toubro Limited.Owners Consultants: STUP Consultants P. Ltd in association with Kowi Consult

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GROUP V : MARINE PROJECTS / PORTS

Facilities for off loading of off shore Platforms of fabricated weight of 7500 T on to Barges from the fabrication Yard. The structure involves one monolith of 40 m x 17 m plus two additional such monoliths of size 30mx17m with interconnections which make a berth of 110m x 17 m; all built by well sinking method and anchored into the rocky strata.

Offshore Platforms

Design and Construction of off-shore Jetty with all ancillary civil works and laying pipeline both onshore and submarine as per the following details:

Off Shore Works:Construction of Unloading Platform – 20m x 10mBreasting Dolphins (2 Nos) – 14m x 14m Mooring Dolphins (4 Nos) – 10m x 10mSubstation – 18m x 9mCatwalk for Platform connections

Onshore structures-Terminal Control Building Fire Water Pump House.

Construction of Mooring Terminal Facility at Cuddalore


Owner: Das Offshore Engineering (P) LtdContractor: Horizon Infradex (P) Ltd.Consultants: Spectrum Techno Consultants (P) Ltd.

Pipe Line WorksOffshore Pipeline works - 1.025 Km Onshore Pipeline works - 2.826 KmCost of the Project (Rs Million): 660Period of Completion (Months) : 18

Proof Consultants: STUP Consultants, Chennai & OGI for Pipe Line WorksThird Party Inspection Agency: Fichtner Consulting Engineer (P) Ltd.

Highlights:Concrete is supplied by agitators •mounted on barges.Laying of offshore pipe line by •specially designed pipe pulling winches mounted on barges under rough sea condition.On shore pipe line was pushed •from one side below the river bed withoutaffectingthewaterflowandnavigation.

Owner: Chemplast Sanmar LimitedContractors: Afcons Infrastructure Limited.Engineering Consultants: IIT, Chennai for Civil works & IMPAC for Pipe Line Works

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This project consist of 832m long piled wharf associated with 26hectres of container stack yard.This container terminal was designed to suit a capacity of 1,20,000 DWT vessels. Accordingly the existing sea bed level varying from 11.00CD to 13.00CD was dredged to 15.50CD to cater the vessels. The wharf having 5 rows (A to E) bored cast in situ pile foundation, connected with precast and in-situ beams. Both A and E row piles are connected with crane beams to support the crane rails. The RC deck slab of 325mm depth is of partially precast and in-situ to avoid staging above water.

The yard was developed to a capacity of around 5000 ground slots and each slot with 5 height stacks. The backup yard was developed with pavement concretes, concrete roads, utility services and requisite buildings for operation and maintenance of the terminal. One STP of capacity 25KLD was provided to treat the domestic sewage.

The photos shows the developed backup yard and finished wharf with RTGC and Quay cranes parked.

Development of Second Container Terminal at Chennai Port


Owner: Chennai International terminals Private Limited (Consortium of Port of Singapore Authority – SICAL terminals Limited)Contractors: ITD Cementation India Limited, Mumbai.Engineering Consultants: STUP Consultants P Limited, Mumbai - Off-shore works; & Consulting Engineering

Services (P) Limited, New Delhi - Onshore worksProject Management Consultants: Consulting Engineering Services (P) Limited, New DelhiIndependent Engineer: Ocean Engineering Department, IITM, Chennai.

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The Ethylene terminal is located at Karaikal, Union Territory of Pondicherry on the east coast of India. The project involved the construction of 1300 m long and 2.4 m wide single piled approach trestle, service platform, 2 berthing dolphins and 4 mooring dolphins. The project was challenging as the construction was to be carried out in open sea.

The 1300 m long pipe line trestle, 2.40m

Ethylene Terminal Jetty at Karaikal


wide, connects the Service Platform to the shore and supports the pipes and walk way of about 1.2 m width. There are two rows of piles at the loop locations, which are spaced at 160 m c/c. Service Platform (15m x 13.5m) with an RC deck of 1m thick supported on bored cast-in-situ RC piles (6 nos - 1m dia + 1 no – 1.2m dia) and it acts as an area for transferring of ethylene from the ship to pipeline. Berthing Dolphin (8m x 14m) with an RC deck of 1m thick is supported on bored

cast-in-situ RC piles (7 nos – 1.2m dia) and is provided with rubber fenders for berthing of ships. Mooring Dolphin (8m x 8m ) with an RC deck of 1m thick is also a RC structure and is supported on bored cast-in-situ RC piles (4 nos – 1.2m dia).

The construction of piles in the inter-tidal zone was carried out by spudded piling platform moving over already installed piles. The balance piles were constructed using an innovative tubular frame platform which is similar to a jack up platform. Superstructure construction was cast in-situ for a part of the approach, service platform and the dolphins. Major stretch of the approach trestle was executed as part precast and partly cast in-situ to enable faster completion. The superstructure of the approach trestle up to inter-tidal zone was constructed using movable formwork system. The remaining superstructure was precasted in barge and erected using floating crane.

Owner: Chemplast Sanmar Ltd, Chennai, IndiaContractors: Larsen & Toubro LimitedDesign Consultants: Larsen & Toubro Ramboll Consulting Engineers Limited, ChennaiProof Consultants: IIT Madras

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The SVB Tollway is a 6.1 km –long integrated six lane stretch of National Highway -2 which includes the main structure “Nivedita bridge” ----a 880 meters long , 29 meter wide “Extra dosed Bridge”.

Six-lane viaducts connect the dispersal ramps and access roads on embankments. The Howrah Approach is 3.67 kms long and, the Kolkata Approach is 1.56 kms long.

The approach via ducts consist of combination of two- lane and three lane precast segments erected by span-by-span and externally pre-stressed to form the superstructure of the dispersal ramps having 4.5 KM linear length.

Main Bridge : Cable Supported Extra-dosed Design Pre-cast segmental construction Supported by Post- Tensioned pre-stressed stay cables2X8 nos per span from 8 nos short pylons 14 m high

Span details : 7 x 110m + 2 x 55 m Foundation : 2 Nos - 8m dia land wells

Second Vivekananda Bridge Tollway – Sister Nivedita SetuGROUP VI : BRIDGES / VIADUCTS / ELEVATED CORRIDORSGROUP VI : BRIDGES / VIADUCTS / ELEVATED CORRIDORS

–ECC Division.Consultants: Consulting Engineering Services – Parsons Brinckerhoff Consortium (in association with International Bridge Technologies, Inc. for the Main Bridge)

Commencement date: Design and construction started on 1st April 2004Completion Time – 39 months (29th June 2007)Date of Commissioning: 4th July 2007Award Received: Bridge Award of Excellence -2007 from American Segmental Bridge Institute , Arizona, USA

+ 8 nos 11m dia-steel caissons) .45 to 50 m deep

Rail under Bridge (RUB): One -2-lane – 60m and One-6 lane – 53 m

Rail over Bridge (ROB): One New – 4- lanes – 65 m added to existing—4-lanes – 65 m

Owner: Second Vivekananda Bridge Tollway Company Private Limited – under PPP Concession with National Highways Authority of India.Contractors: Larsen & Toubro Limited

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Railway Bridge over 350 mtr. long on Mayurakshi river on new rail line connecting Deoghar with Dumka.

River with sandy bed is subjected to strong currents and is prone to flash floods and scour. Embankment protection with launching apron was required.

The bridge has 10 spans, 33.18 mtr. c/c of piers. Superstructure consisting of a single prestressed box 6m wide carrying a single ballasted rail line.

The superstructure is resting on single circular pier through POT / PTFE bearings. Foundation consist of 8/9 mtr. dia wells sunk on average 15 mtr, through sandy strata and resting on rock.

Railway Bridge Over River Mayurakshi at Jharkhand

GROUP VI : BRIDGES / VIADUCTS / ELEVATED CORRIDORS

There is no evidence to the fact that bridges being considered for the aesthetic treatment till the middle of 18th century. Till the time of the inception of engineering establishments including military engineering establishment in Paris around 1750, bridges were considered to be structures spanning and providing passage over road, waterway or gorges and they were synonymous with either vaulting or hanging wooden passage on tensile fibers. In a sense the concept of bridge being functional and yet to be beautiful is a recent recognition of last one

Balason Bridge at Darjeeling

particular time, to the future generation, it is imperative for us to make our posterity believe that we engineering fraternity possessed healthy, aesthetically pleasant, creative minds. In India, as we reminisce our past by beautiful mandirs, (Temples) masjids (Mosques) and mahals (Palaces), our posterity should remember us by the bridges, we create.

and half centuries. Since then the story of bridge building has become the yard stick for the progression in civilization of Nations according to Franklin Roosevelt.

The structures of a particular era reveal the idiosyncrasies of the rulers and technologists, the degree of sophistication in technology and material sciences i.e. state of the art research and finally financial health of the state at that time. The bridge building being such a serious business, which stands as a testimony of the mental state of engineers of a

Owner: Gorka Hill Council.Contractors: Gammon India Ltd..Engineering Designers: Gammon India Ltd

Construction Period: 2 YearsOwner: Eastern Railway.Contractors: GPT Infraprojects Ltd.Consultants: Structcon Consultants Project Management Consultants: Eastern Railway

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The long span segmental cantilevered construction bridges over rivers and creeks were started in India way back in nineteen sixties, interestingly a bit earlier than in United States. After having achieved 165m central span by this method, presently 185m longest span girder bridge is designed and being executed in the sub-continent.

Mean while a concept of extra-dose bridge an evolution between girder and cable stay bridge introduced by Christian Menn and J.Mathivat in their typical but classical styles has been admirably exploited by Japanese up to the span of 250m.The authors improvised the concept further by staying the central span beyond the extra-dosed spans by cables from the same Pylon housing extra-dose cables in one of the recent competitive biddings. This is an extra-dose bridge partially supported by cable stays.

Siddapur Bridge at Coorg, Karnataka is the first indigenously designed and built first time by cast in situ cantilever construction method Extra-dose Bridge in

Siddapur Bridge, Coorg, Karnataka


India, in tune with the conference theme of global thinking and local building.

In the paper followed, the cost benefit analysis of extra-dose bridges over the girder bridges including design and construction aspects and other features like increased spanabilty with small deck depths, aesthetic characteristics

has been presented in detail aided by Siddapur Extra-dose Bridge at Coorg and Balason Girder Bridge at Darjeeling.

Pir Panjal Rail Tunnel project is part of the ambitious, 345-km-long Udhampur-Srinagar-Baramulla rail link that will provide an alternative and reliable transportation system to Jammu & Kashmir (J&K) by joining the Kashmir Valley with the Indian Railways network. This railway line will strengthen available transport facilities to J&K and provide an all-weather means of transport in an area that is snowbound for a significant part of the year.

Post completion it would be the longest tunnel in India, around 11 Km long and 8.50 m in dia, passing through the most difficult terrains of Himalaya.

The tunnel design adopted for the construction is the New Austrian Tunneling Method (NATM). For the excavation purpose, Roadheader has been engaged which is relatively new machinery to the Indian construction. Heavy support system along with regular monitoring of the tunnel deformation was implemented to achieve the job smoothly. The photograph shows here the water proofing membrane provided along with supports to restrict the seepage.

Pir Panjal Railway Tunnel, Jammu & Kashmir

Owner: Karnataka Road Development Corporation Ltd.Contractors: Gammon India Ltd.Engineering Designers: Gammon India Ltd

The work commenced in June 2004 and is expected to be completed in 2011

Owner: Ircon International LimitedDesigner: Consultant:Geoconsultant-Rites JVContractors: Hindustan Construction Company Ltd.Funding: Ircon International Limited

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Year of construction: 2008 – 2009Span arrangement: 1x 22.25 + 1 x 33.825 + 24 x 34.75 + 1 x 28.65 + 1 x 22.25Total length of bridge: 940.975 m Discharge: 27200 CumecsHeight of Pier: 22.32 m (max) Type of Superstructure: Four Nos of precast PSC girders with cast in situ RC deck slabGirder erection system: Over head launching using Auto launching systemWeight of PSC girder: 132.0 T (max)Weight of launching girder: 160.0 T

Client: National Highways Authority of IndiaConcessionaire: Andhra Pradesh Expressway LtdECP Contractors: KMC Constructions Ltd.Contractors: Associated Engineering EnterprisesIndependent Consultants: Aarvee Associates, Hyderabad

Major Bridge Across River Krishna


Year of construction: 2008 – 2009Span arrangement: 1 x 40.0 + 14 x 38.8 + 1 x 40.0Total length of bridge: 623.20 m Discharge: 15255 Cumecs Type of Superstructure: Four Nos of precast PSC girders with cast in situ RC deck slabGirder erection system: over head launching using Auto launching systemWeight of PSC girder: 153.0 T (max))Weight of launching girder: 175.0 T

Major Bridge Across River Tungabhadra

Client: National Highways Authority of IndiaConcessionaire: Andhra Pradesh Expressway LtdECP Contractors: KMC Constructions Ltd.Contractors: Associated Engineering EnterprisesIndependent Consultants: Aarvee Associates, Hyderabad

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The Allahabad Bypass Project, forming part of the NH-2 Golden Quadrilateral corridor from Delhi to Kolkata, comprises of two road packages and two bridges. The work under this package covers construction and completion of Major Bridge across river Ganga from Km +163.280 to Km +164.300 of NH-2 in the state of Uttar Pradesh, India. The construction period for total project was 30 months.

The alignment of proposed bridges running parallel to each other, have two independent carriageways, each accommodating a 7.50m wide two lane carriageway and 1.50m pedestrian footpath. The bridges are located at a clear distance of 12m to facilitate independent well sinking. Each bridge has two 6-span continuous units with span lengths of 62+4x95+62m. The total length of each bridge was 1010.2m.

Bridge superstructure is supported on well foundations. The superstructure comprises of precast post-tensioned segments of varying heights (2.50 to 5.5m) and lengths (2.50m to 4.0m) weighing between 50MT to 91 MT.

The foundations consist of large diameter (10m dia.) well foundations of depths

Ganga Bridge at Allahabad


of 38.80m and 43.80m below LWL, and Jack down methodology was adopted for well sinking. The sub-structure was of rectangular piers with pier cap. The superstructure consists of precast segmental box girders (post tensioned) of varying weights. This segmental bridge was constructed using Balanced Cantilever Method with epoxy glued joints and internal bonded prestressing. This was the first bridge in India to have Shock Transmission Units (STU’s) in it to transfer the seismic load from superstructure to sub structure.

Owner: National Highways Authority of IndiaContractors: Larsen & Toubro LimitedDesigne Consultants: SNC LAVALIN International Canada in association with Gherzi Eastern Limited India and Tandon Consultants Pvt. Ltd. IndiaSupervision Consultant: Scetauroute International & Frischmann Prabhu (India) Pvt. Ltd. JV

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NHAI along with State Government of Tamil Nadu programmed to develop access to the Golden Quadrilateral Corridor by providing free flow facilities in highly trafficked areas in Chennai. The Kathipara flyover involves design and construction of a clover leaf interchange in the heart of Chennai City. The Structural portion involves 600m. long dual 12.0m wide decks for the main via duct spans connecting the Inner ring road to Airport. Four loops of approx.200m. length each connect to main via duct from Guindy – Poonamallee Road .All the structural spans are resting on aesthetically shaped piers founded on open footings at 3 to 4 m depth.

Voided slab superstructure in PSC and RC have been adopted for super structure.

Grade Separated Interchange at Junction of NH-45-IRR at Kathipara, Chennai


Owner: National Highways Authority of IndiaContractor: Somdutt and Simplex (JV)Consultants (Design and Supervision): STUP Consultants P.Ltd.

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The Perambur Flyover involves Rail Over Bridge over an existing vehicular subway to facilitate free movement of traffic in and around Perambur Railway Station in Chennai. The total length of the flyover is 650m. The flyover consists of four lane for 400m. Length , three lane for 200m length and single lane for 300m length. The flyover has 12 RC spans with 15.25m width, seven spans with 13m width and 11 spans with 5.25m width. The superstructure comprises some spans simply supported and other continuous box sections. The PSC post tensioned girders with RC deck slab is adopted for the two spans with 15.25m. All the structural spans are resting on aesthetically shaped piers founded on open footings at approx.3.5m depth .

Owner: Corporation of Chennai.Contractor: IVRCL Infrastructure and Projects Ltd.Consultants (Design): STUP Consultants P.Ltd. Consultant and Proof Checking: Anna University.

Perambur Flyover, Chennai

The interchange at Padi is at a location of present level crossing which is to be replaced by ROB. The junction is very close to the Railway Lines which does not allow ROB to come to the ground level properly. Also the road running parallel to railway at a close distance also needs to have an access in all directions. The solution was found by raising the interchange at high level and connecting the ROB at higher level and raising the three roads meeting at the junction also at high level.

Interchange at Padi , Tamil Nadu


Client: NHAI/TNRDC Contractor: Simplex –Somdutt (JV)PMC: STUP Consultants P.Ltd. Consultants: STUP Consultants P. Ltd.

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Rail connectivity from Idapalli to ICTT at Vallarpadam for works of elevated structures, major and minor bridges and earthwork as per the details given below:Length of Elevated Structure: 4620 mLength of Embankment: 3380 mPiles ((1.2 m dia. Avg. Boring length) 50m) : 1275 Nos. Pile Cap: 141 Nos. Pier and Pier Cap: 140 Nos. ‘I’ Girder ( Twin ‘I’ Girder system): 200 Nos ‘U’ Girder : 34 Nos. Launching (Spans): 134 Nos.

Rail Connectivity From Idapalli to ICTT at Vallarpadam (Longest Rail Bridge In India).


The structure is constructed across three stretches of creek back waters, two islands and densely populated main land making the logistics of the project very complex.

Owner: Rail Vikas Nigam Ltd – Delhi.Contractors: Afcons Infrastructure Limited, Mumbai.Design Consultants: RVNL and AfconsProof Consultants: IIT, Mumbai

Highlights:Longest Railway Bridge (4.62m) in •India.Total 133 Spans (233 Nos. PSC •girders) were erected within a span of 14 months.Constructed in short span of •27months. Pumping of concrete for 2.2 Km •with multi stage high pressure pump.

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This 2300 Meter long bridge across River Mahanadi is on NH-5 near Cuttack in Orissa State. This bridge was severely damaged due to distress in concrete on account of saline and environmental effects. There was severe damage to the appurtenances such as Bearings, wearing coat, bearings and concrete in the decking. The superstructure of this bridge comprising of 47 spans of 49 Meters each with 2 end spans of smaller length rests on RC piers and well foundations. The structural system of the superstructure is balanced cantilever 2 ‘I’ girders with articulated ends supporting the suspended spans.

Intensive survey and Non-destructive tests were carried out to assess the damages on the basis of which replacement and repairs were carried out to various components of the bridge. With the rehabilitation work carried out, the bridge is now geared up to take the present intensity of traffic which increased substantially over the years.

Rehabilitation of Mahanadi BridgeGROUP VII : REPAIRS / REHABILITATION PROJECTS

This railway bridge constructed in 1896 carries 2 tracks Broad Gauge and falls on the arterial route between 2 important capitals of India – Delhi and Mumbai. The original bridge comprising of steel fish belly type plate girder resting on cast iron piles, was severely affected due to corrosion of the piles and scouring of the shallow foundations.

This bridge was to be re-built without suspending the traffic. The new foundations and substructure was constructed between the two existing piers. The superstructure comprising of PSC girders were precast and were launched in position during the traffic blocks. The original bridge was having 3 spans of 26 Meters each and was converted to 4 spans of 19.35 Meters each. Independent PSC girders were provided under each track. The abutments were replaced by RC boxes which were launched in position pushing through the embankment under the track. The handling of PSC girders was done by using cranes and hydraulic jacking system.

Rebuilding of Bridge No.586 on Western Railway at Vishvamitri, Vadodara

Owner: Chief Engineer, National Highways, PWD, Bhubaneswar, Orissa..Rehabilitation Contractors: The Freyssinet Pre stressed Concrete Company Ltd. Worli, Mumbai

Owner: Deputy Chief Engineer, Western Railway, Vadodara..Main Contractor: Gammon India Ltd. MumbaiSub Contractors: The Freyssinet Pre stressed Concrete Company Ltd. Worli, Mumbai

GROUP VII : REPAIRS / REHABILITATION PROJECTS

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Rehabilitation of Mahatma Gandhi Setu, Patna

GROUP VII : REPAIRS / REHABILITATION PROJECTS

This is the longest River Bridge in India having a length of 5525 Meters. This bridge constructed in seventies has 2 carriageways resting on one common pier supported by well foundations. The piers are integral with the decking which is in pre-stressed concrete box girder with ‘T’ arms. Each ‘T’ arm is about 120 Meters. The cantilevers are connected at the tips by means of steel Central Hinge Bearings.

The stability of the bridge was affected due to sagging of cantilevers resulting in

Owner: A) Chief Engineer, Ministry of Shipping, Road Transport & Highways, Transport Bhavan, New Delhi. B) Chief Engineer, RCD, Bihar at PatnaContractors: The Freyssinet Pre stressed Concrete Company Ltd. Worli, MumbaiConsultants: M/s Structcon Consultants. Borivali, Mumbai

damage to the Central Hinge Bearings. The box girder is constructed with precast segments. Apart from sagging of cantilevers, some joints were found to be open. It was established that loss of prestress was the main factor attributing to the distress in the bridge. To overcome this, external cables were provided to augment the prestress to the required level. After the prestressing work, the damaged bearings were then replaced. 46 spans have been strengthened in this manner.

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The project comprises of four-laning the existing two lane NH-4 between Satara to Shivade – Package V (28 Km).

It was decided to have concrete pavement for the new carriageway. There are 3 major bridges in Package V and an elevated road structure in Umbarj town. The road will be semi access controlled. Use of fly ash has been made for making pavement quality concrete in M40.

Four - laning of Satara – Kolhapur State Border Section of NH-4 from Km 725 to Km 592/240 – Package V

The Purpose of the Outer ring road is to upgrade the existing Peripheral Road connecting Magadi Road to Mysore Road via Nagarbhavi ,Ambedkar Engineering College and Kengeri Satellite circle and 60feet from Hoysala circle and 60feet from Hoysala circle to Mysore Road also under scope of work includes road and cross drainage work .Total Length of the road is 11.5Kms.

Outer Ring Road (Four lane) Between Mysore Road to Magadi Road, Bangalore

GROUP VIII : ROADS / HIGHWAYS / EXPRESSWAYS

Owner: Maharashtra State Road Development Corporation Limited (MSRDC)Contractors: Mahavir Infrastructure – NCC (JV).Consultants: STUP Consultants P. Ltd.

Client: Bangalore Development Authority, BangaloreContractor: Maytas Infra Limited.Consultants: STUP Consultants P.Ltd. PMC: STUP Consultants P.Ltd.

GROUP VIII : ROADS / HIGHWAYS / EXPRESSWAYS

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India’s first and longest open sea, cable stayed bridge, Bandra - Worli link is the first phase of west freeway sea link (WFSL) project, linking the city of Mumbai with its western suburbs, aimed at upgrading the road transportation network of greater Mumbai.

The Bandra-Worli Sea Link has a total length of 4.7 kms and has dual carriageways of 4 lanes each. The project comprises:1. Approach road of 540 m.2. 54x2 pre-cast segmental approach

spans of 50 m length 3. Bandra cable stay bridge on 126 m

high single pylon with 500 m clear span

4. Worli cable stay bridge on 54 m high twin towers with 150 m clear span

5. 811 m link bridge 6. 16 lane Intelligent Toll Plaza

At peak time, the project deployed 165 engineers and staff and 2800 workmen. The project management team had the requisite experience and skill levels for segmental construction and marine sub-structure works. The project demanded application of state-of-the-art technologies of global standards.

Bandra-Worli Sea Link,MumbaiGROUP IX : LARGE PROJECTS

GROUP IX : LARGE PROJECTS

Owner: Maharastra State Road Development CorporationDesigner/Consultant: Dar Consultants India Pvt. LtdContractors: Hindustan Construction Company Ltd.Funding: Maharastra State Road Development Corporation

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MMRDA has developed a Master Plan for integrated road development with an objective of strengthening and widening of existing road network of the island city of Mumbai and its Western and Eastern suburbs under Mumbai Transport Infrastructure Development Project.

The work of widening Jogeshwari - Vikroli Link Road from 2 lanes to dual 3 lanes is included in Non-Rail (Road and other work) component of MUTP-II, aided by World Bank. Jogeshwari – Vikroli Link Road (JVLR) is a vital link in Mumbai City and connects Western Express Highway and Eastern Express Highway.

The total length of this link is 10.70 km, which is divided in 3 sections. Out of these, Section 2 (Approx. length 4.40 km.) has already been developed to a dual 3 lane configuration in some parts.

The work involves construction of concrete pavement, bituminous pavement, widening of existing cross-drainage works and bridges, construction of flyover and retaining walls, ground improvement, improvement of geometry of existing road, road furniture, pavement markings etc..

Jogeshwari Vikroli Link Road (ICB Contract : World Bank Funded)


Owner: Maharastra Metropolitan Region Development Authority / Maharastra State Road Development Corporation.Contractors: Mahavir Infrastructure – NCC (JV).Consultants: STUP Consultants P. Ltd.

Before

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Nine Lines in 3 PhasesTotal Length: 146.5 km Versova-Andheri-GhatkoparCharkop-Bandra-MankhurdColaba-Mahim-Bandra

Charkop - Dahisar Ghatkopar – MulundBKC-Kanjur Marg via Airport

Andheri(E) - Dahisar(E)Hutatma Chowk - GhatkoparSewri – Prabhadevi

Ambedkar Road is one of the three main corridors running North-South and serving both long distance commuter and local traffic. A series of long stretches along the road are being elevated to high level road to serve the fast moving commuter traffic and thus by flying over number of junctions with cross-roads, reduce the commuting time. From the elevated road at J.J. Hospital at southern end to Chunabhatty railway station at the northern end, is a series of 10 flyovers and elevated roads. The elevated road at Lalbaug is 2.0 km, the flyover at Dadar is 1.2 km. and that at King Circle is 1.2 km long. Adding these to the existing flyovers at other junctions this vital north-south link will have about 8.6 km. length at elevated level, which will contribute in a major way to ease north south through traffic on this vital artery of Mumbai’s traffic.

Metro Rail, Mumbai

Elevated Road Along Ambedkar Road Mumbai


Owner: Maharastra Metropolitan Region Development Authority

Owner: Maharastra State Road Development Corporation. / Muncipal Corporation of Greater Mumbai

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The Inderlok –Mundka corridor of Delhi MRTS is an elevated viaduct of length 5.225km with five elevated stations. There are as many as 148 spans of different lengths arranged all through the viaduct with the span length ranging from 16m to 37m. Also there is a 75m long continuous span placed over an existing railway track alongwith two side spans of length 62m.The superstructure system in the viaduct is of prescast prestressed type. The piers supporting the superstructures are either circular or elliptical and owning to the eccentricity of the centre line of alignment with the centre line of piers, the piers are categorized as concentric, cantilever and portal piers

The five elevated stations are located at Inderlok, Ashok Park, Punjabi Bagh East, Shivaji Park and Madipur. At each station there are two floor levels, namely the Concourse level and the Platform level. The spans placed side by side to the platforms are RC cast –in-situ whereas the ones placed on either sides of the RC cast-in-situ spans are Precast prestressed. The columns supporting the structure are circular, rectangular or half elliptical. The foundation adopted is pile foundation type and piles used are either of diameters 0.8m or 1.2m

Design of Elevated Viaduct- 5.225kms. and Five Elevated Stations – BC-7


Owner: Delhi Metro Rail CorporationClient : DMRC-IDEB-SUCGJV – Joint Venture, New Delhi Design Consultants: STUP Consultants P.Ltd. in association with CPG Singapore

HighlightsThe First Standard Gauge Corridor •In the Country.Two Stretches of 3 continuous span •system of 62-75-62m. Each above Punjabi Bagh Flyover and Northern Railway Line at Zakira.

One Span of 45m in Steel.•Viaduct with Segmental •Construction as well as Cast in Situ RC voided Deck slab.Station and Viaduct On Pile •Foundation.Sub Structure of Single Pier with •Pier caps Centric and Cantilever Pier Cap, Portal Beam type.

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The Qutub Minar – Gurgaon corridor of Delhi MRTS has an elevated viaduct of length 0.883km near Sultanpur Station for supporting multiple tracks of Broad Gauge Coridor. There are as many as 32 spans of different lengths arranged all through the viaduct with the span length ranging from 16m to 24m.

The superstructure system in the viaduct is of precast girder with cast in situ slab. The girders are supported on portals and piers depending upon the location and number of tracks. The piers of superstructures are either circular or elliptical and owing to the eccentricity of the centre line of alignment with the centre line of piers, the piers are categorized as concentric, cantilever and portal piers. The type of foundation adopted in viaduct portion is pile foundation with pile diameter fixed to 1.0m.

Viaduct Portion of Stretch Adjacent to Sultanpur Station to Qutab Minar – BC-20

The long span segmental cantilevered construction bridges over rivers and creeks were started in India way back in nineteen sixties, interestingly a bit earlier than in United States. After having achieved 165m central span by this method, presently 185m longest span girder bridge is designed and being executed in the sub-continent.

Mean while a concept of extra-dose bridge an evolution between girder and cable stay bridge introduced by Christian Menn and J.Mathivat in their typical but classical styles has been admirably exploited by Japanese up to the span of 250m.The authors improvised the concept further by staying the central span beyond the extra-dosed spans by cables from the same Pylon housing extra-dose cables in one of the recent competitive biddings. This is an extra-dose bridge partially supported by cable stays.

In the Indian context, while 2nd Vivekananda bridge is a first extra-dose bridge, Pragati Maidan extra-dose bridge which was being built at the same time for Delhi Metro Rail Corporation is unique

Pragathi Maidan Bridge

with it’s U trough deck configuration. Both these were built by pre cast segmental cantilever construction method.


Owner: Delhi Metro Rail Corporation.Contractors: Systra.Engineering Designers: Gammon India Ltd

Owner: Delhi Metro Rail CorporationContractor: Delhi Metro Rail Corporation - Simplex Infrastructure Limited Design Consultants: STUP Consultants P.Ltd.

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India’s first extra-dosed bridge to be comissioned, has been built by Gammon India Limited between Pragati Maidan and Indraprastha towering over Indian Railways tracks. This bridge is 196.343 metres long and the main span over the railway lines is 93 metres. In addition, the bridge has a 302-metre radius curvature. Prior to this the first such rail over bridge was constructed in Japan..

The extradosed bridge is a variant/hybrid of the cabled-stayed bridge and the segmental pre-stressed concrete girder bridge, combining features of both. Similar in appearance to a cable-stayed bridge, but with shorter towers, the extradosed bridge’s structural performance is similar to that of a post-tensioned bridge.

A cable-stayed bridge usually has a deck that is sufficiently rigid to spread local loads and to prevent undue flexure and torsion, but the deck is unable to support itself without the cables.

Construction of Extradosed Bridge for Metro Rail Project at Indraprastha


The pre-stressed concrete bridge, by contrast, has no external supports apart from the piers, and the forces in it are controlled by tension in the tendons and compression in the concrete.

Owner: Delhi Metro Rail Corporation.Contractors: Gammon India Limited.Consultants: Systra

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The site is located at MEPZ Campus; Chennai .The site is fairly rectangular in shape with a total plot area of 57223 Sq.m. The total built-up area is about 186,000 sq.m.

It has been deigned in such a way that it can occupy 9000 to 10,000 persons and has car parking facility of about 1300 cars and 2000 two wheelers.

The project is designed as an eco-friendly project. The major highlights are minimized impervious surface areas on the site, maximized positive effects of solar orientation and wind patterns and minimized the urban heat island effect, preserve natural site features and use topography of the site. Moreover Green building concepts (Sustainable design approach and solar passive architecture) are widely used in this project.

Cognizant Campus at MEPZ, ChennaiGROUP X : BUILDINGSGROUP X : BUILDINGS

Owner: Cognizant Technology Solutions India Pvt. Ltd.Contractors: Larsen & Toubro Limited –ECC Division.Engineering Consultants: Engineering Design and Research Centre (EDRC) of ECC Division, Larsen & Toubro Limited

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The TCS Techno Park IT Project, one of the large IT Parks, accommodates around 30,000 professionals and is located along East Coast of Chennai Suburban on a sprawling 70 acres of land. This facility with 465,000 sq.m. area faces the Bay of Bengal. Phase-1 of the project occupies 232,500 sq.m.

The highlight of the project is its efficient concrete structural system to support the complex Structural steel roofing. The butterfly shaped roof adorns the top of Engineering Buildings while a magnificent dragon shaped Central Spine covers the Podium standing erect between the two rows of General Service buildings.

The two structures - The Mini-spine - 6 nos and The Central spine play a significant role in the structural system.

The Mini-Spine resembles the body of a butterfly spreading its two wings on either side in north south of Engineering Buildings. It measures 15 m high at the mid span with overhang on both sides and rests neatly over two concrete core structures specially designed to withstand the mini-spine.

The Central spine stands on 16 pairs of heavy legs otherwise known as Portals with a length of 400m in east west direction and tails on both ends nearly touching the ground.

TCS Technopark, Siruseri, Chennai

GROUP X : BUILDINGS

Owner: TATA Consultancy Services.Contractors: Larsen & Toubro Ltd.Architect: Carlos OTT Architects in association with Carlos Ponce de León Architects.Local Architect: C.R.Narayana RaoEngineering Consultants: TCE Consulting Engineers Ltd.

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The Assembly building covering a plinth area of 22000 Sq.m and resting on 1636 bored cast in situ piles is a mommoth concrete structure seven storeys tall rising to 37 m and crowned with a 30 M structural steel conical dome . The façade is with combination of 20000 sq.m structural glazing and 10000 sq.m sapphire bule granite panels covered with perforated aluminium sheets.

The structure consists of four circular buildings to accommodate the offices of the State Chief Minister, elected representatives of the Legislative Assembly, a Library and a Public Plaza which provides free access to the public to the Assembly complex.

All the offices of the various departments with their Departmental Heads are housed in this complex with all needed infrastructural facilities. Very careful measure were followed not to cut trees, but transplant them wherever possible. This is one of the few large Government Buildings to earn “GREEN LEED CERTIFICATE”

Cast in Situ bored piles of Dia (500 to 1000mm): 1636 No.Concrete: 80000 cumRebar: 10000 MTShuttering: 600000 sqmPrestressing strands / Cables: 520 MTCladding: 10000 sqm

Owner: Public Works Department, Government of Tamilnadu.Contractors: East Coast Constructions & Industries Limited, Engineers & Contractors.Architect: GMP International GMBH, Architects & EngineersLocal Architect: Archivista Engineering Projects Pvt LtdEngineering Consultants: Y.S. Sane Associates

Construction of a new complex for Tamilnadu Legislative Assembly at Chennai, India

GROUP X : BUILDINGS

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The building which houses Legislature-cum-Secretariat, Government Offices, is planned to match the existing Vidhana Soudha in the architectural style and its grandiose.

The Monumental Building is Reinforced Concrete Structure with 3 Basements + Ground + 4 Storied costing about Rs.100 crores. The scope of work consists of Civil, Internal Sanitary, Plumbing, Electrical and External Services including all Electro-Mechanical Services such as HVAC, Electrical, Fire Fighting, Public Address System, Elevators etc.

The outstanding features of the two monumental buildings are ornamental motifs, floral patterns and chiseled geometric designs are all distinct and not a single design has been repeated. The floral motifs of the stone-carvings are Dravidian in style and are drawn entirely from the temple-craft of Karnataka and Tamil Nadu. The Domes are having diameter of 9.7 m.

Vidhana Soudha South Block – Vikas Soudha at Bangalore

GROUP X : BUILDINGS

The Sports Complex was planned to conduct 3rd Commonwealth Youth Games 2008. All the Sports Facilities and buildings are of International Standards and finishes such as structural glazing, false ceiling, alco panels, granite flooring, Galvalume sheet roofing and cladding etc. The project costing Rs.320 crores was completed in a record time of 17 months.

The Sports complex consists of various

Shiv Chhatrapati Sports Complex at Balewadi, Pune

Major Quantities:-Concrete: 41277 CumFormwork: 325000 SqmReinforcement: 4597 MTBuilt up area: 627261 SqftGranite Stone for Ornamental & Masonry: 21523 Cum

Owner: Karnataka Public Works Department (KPWD).Contractors: B.G. Shirke Construction Technology Pvt. Ltd., Pune.Architect / Structural Designer: Karnataka Public Works Department

Reinforcement: 3146 MTStructural Steel: 3781 MTGalvalume Sheet Roofing System: 46658 SqmBuilt up area: 950000 Sqft.

Owner: Directorate of Sports and Youth Services, Pune.Contractors: B.G. Shirke Construction Technology Pvt. Ltd., Pune.Architect / Structural Designer: Shashi Prabhu & Associates, Mumbai

structures such as Badminton Hall, Wrestling hall, Fitness Centre, Shooting Range complex, Tables Tennis hall, Center tennis court etc. The total seating capacity is 39,100. The project contains facilities for all the games of International Standards are located at one place in area of about 140 acres.

Major Quantities:-Concrete: 46863 Cum

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The project is executed on Turnkey Lumpsum Basis Planning, Design, Construction, obtaining permission from statutory authorities etc. The planning, design and construction of the entire project is done to satisfy the eco-friendly norms.The building is designed with ‘3-S’ Prefab System consisting of precast column, beam, slabs etc. The scope includes Stilt+15 storied 16 buildings including civil, infrastructure, internal and external services, electrical, sanitary plumbing, lifts, fire fighting etc., costing Rs.108.70 crores.

The project involved construction of a AC Indoor Stadium at Amingaon, Guwahati, Assam. The seating capacity of the stadium was 25000. The stadium has been built to International Standards and are capable of holding world standard games.

Mass Housing Project at Versova, Mumbai

GROUP X : BUILDINGS

Rajiv Gandhi AC Indoor Stadium, Guwahati, Assam, India

Prefab System consisting of precast elements:-

Column: 10363 Nos.Beam: 67799 Nos.Slab: 60464 SqmNo. of Buildings: 16 consisting of 1088 HIG unitsBuilt up area: 1077756 Sqft. Owner: Mumbai Housing & Area Dev.

Board, Mumbai.Contractors: B.G. Shirke Construction Technology Pvt. Ltd., Pune.Architect / Structural Designer: B.G. Shirke Construction Technology Pvt. Ltd., Pune

Owner: Guwahati Metropolitan Development Authority Govt. of AssamContractors: Larsen & Toubro Ltd.Architect / Structural Designer: STUP Consultants P. Ltd.

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Corporate Office Building for Patni Computer Systems at Airoli, Navi Mumbai

The corporate office building is located at Airoli is spread over a plot of 50 acres. The proposed officebuilding is stilt + 4 storeyed structure, RC framed having built up area of 49418 sq.m. with all modernfacilities for a software block. The office building houses software blocks, training centre, canteen andan employee care centre.

GROUP X : BUILDINGS

Development of IT Campus, Chandigarh, India

Design and Development of IT Park, comprising IT, Commercial, Residential and Recreationalsegments with support infrastructures on the plot area is Appx. About 10 acres, FAR ratio 2.50Permissible Built up area 10,10,000 Sq.ft.

Owner: Bharti Airtel Ltd.Contractor : Top LineDesigner/ Consultants : STUP Consultants P. Ltd.

Client: Patni Computers Contractor: N.C.C Designer/ Consultants: STUP Consultants P. Ltd.

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indian mega project

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