method statement - brantas...
TRANSCRIPT
River Improvement
METHOD STATEMENT Project Name : Wonokromo River Improvement Surabaya (Wonokromo) Sub Project (Package-3) Province : East Java Bidder Name : PT. BRANTAS ABIPRAYA (Persero)
GENERAL Generally, all construction of Wonokromo River Improvement Surabaya (Wonokromo) Sub Project
(Package-3), Surabaya (Wonokromo River) Sub Project (Package-3), east Java at construction begin, during construction and finish, contractor will follow procedure / protocol which apply and have been
specified in Wonokromo River Improvement Surabaya (Wonokromo) Sub Project (Package-3)
environment, JICA’s procedures and Republic of Indonesia’s rules as specially.
1. IDENTIFICATION 1.1. Location & Access Road
The site is located in Wonokromo, East Java, Indonesia.
Project Location
ZOOM
Location Site
River Improvement
PLAN BY SATELITE
PROVICE OF EAST JAVA
Indonesia
Notes; - Image on below isn’t as real condition of Project location in this time
(condition at Tender time) - Image on below only as mark of project location will be constructed
PROJECT LOCATION
River Improvement
ZOOM
Wonokromo River
Project Start
End Project
Location Plan of Base
Camp
River Improvement
1.1.1. Existing Roads and Transportation Facilities Access to the Site can generally be achieved via the network of public roads and streets
in the vicinity of Site.
The Contractor will use the existing road for the works.
The Contractor shall fully inform himself of the conditions of roads, traffic conditions and traffic regulations with respect to gaining access to the Site for the purposes of
performing the Works and shall take all necessary actions to ensure availability of access to the Site as required.
1.2. Planning of Work
1. With Location Site are spread, Construction will be constructed as Frontal, mean that
construction at 1 location does not connections with others, only Equipment that connections. Each Location site will use Equipment.
Flow Chart
FINISH
CCSP
(2 Group)
Construction (North and South River)
Road Work (1 Group)
Construction (South River)
START
Earth Work & Demolising)
(1Group)
RC
Pile+Parapet (2 Group)
Construction (North and South River)
Construction
Dike Foot Protection (1Group)
Rivetment
(2 Group)
Construction (North and South River)
Earth Work (embankment)
Construction (North and South River)
Earth Work (embankment)
Construction (South River)
Construction (North and South River)
Earth Work (Excavation of
River Bank)
River Improvement
WORK DIRECTION Usually, Construction in the River Will Be Construction From Upstream River up to
Downstream River
Work Direction
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2. Scope Of Works 2.1. Project Description:
Wonokromo River Improvement Surabaya (Wonokromo) Sub Project (Package-3).
Civil Works Package 3;
Construction of civil work for Channel improvement such as concrete sheet pile, channel excavation, embankment, and parapet in the middle reach of Wonokromo River From Nginden
Intan Bridge to Meandering Section of Whick length 3,950 meter
Time for Completion is 730 days and Defects Notification Period is 180 days
The main elements of the Works to be completed under this package shall consist of, but not
be limited to, the following: 2.1.1. Earth Works;
- Excavation Common Soil for Structure by Machinery - Excavation Common Soil for Structure by Man Power
- Hauling of Excavation Material
- Compacted Back Fill - Embankment Works from Borrow Area
- Sodding
2.1.2. CCSP and Revetment - CCSP CCSP, Tie Rod and Capping Beam Detail in CONSTRUCTION METHOD FOR
CCSP
Geotextile Sheet Sand Embankment
Lean Concrete K100, t=10 cm Cyclopean Concrete K175, (with thickness as according to the Drawing
- Riverment Earth Work (will be detail on CONSTRUCTION METHOD FOR EARTH WORK)
Drainage with Wet masonry Lean concrete K100, t=10cm
Reinforced Concrete K225, t=20cm Concrete Block 30x30x10, K 175
2.1.3. Parapet: - Preparatory Works
- RC Pile 20x20 - Concrete (Class as according to the Drawing and BQ)
- Reinforcing Steel
- Masonry 1:4 and PVC Hole Ø 2” - Geotextile
- Gabion - Etc
2.1.4. Road:
- Fence
Preparatory Works Wet Masonry
Plastering Concrete (Class as according to the Drawing and BQ)
Reinforcing Steel
Steel Galvanis Pipe Wire Mesh Fence
- Road Preparatory Works
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Sand & Precast Concrete Curb
Sand and Precast Concrete Tile
2.1.5. Other Works: - Works Item as according to BQ and To the Drawing
3. Equipments List of Minimum Equipments required for Construction (upon request tender documents)
Equipment Type
and Characteristic / Capacity
Minimum Number of Units
Excavator with capacity 0,75 m³ 2 ( Two )
Pontoon with capacity more than 70 ton 2 ( Two )
Dump Truck – Cap. 11 ton 10 ( ten )
Truck Mixer with capacity 4.2 m³ 4 ( Four )
Crawler Crane with with Vibratory Hammer with capacity more than 50 ton
2 ( Two )
Crawler Crane with capacity more than 25 Ton 2 ( Two )
Bulldozer with capacity 0.75 m³ 2 ( Two )
Water Jet Equipment for Driving 1 ( One )
Work equipment used (type, number and capacity) is actually in accordance with Attachment of "List
Of Construction Plant " which is an integral part of the Bid Documents
4. TECHNICAL CONCTROL / SITE MANAGEMENT and TRAFFIC MANAGEMENT
TECHNICAL CONCTROL
Technical Control is a process of activities performed to ensure the results of work in accordance in
the contract documents. Result and Quality will be realized in the form of Premary hand Over Certificate (PHO) Final Hand Over (FHO).
In Technical Control, Before – During – After (Begining – Process construction – Finish), as according
to; 4.1. Work Contract
Work Contract, Bill of Quantity, Tender Drawing, Technical Specifications, payment procedures
and measurements, Addendum Contract (if any). And reference the Technical Regulations Construction and procurement of construction,
4.2. Engineering
Activities include and are not limited to the measurement / calculation, checking of Work Site,
Approved of Shop Drawing and As built Drawing and approval of construction materials, documentation, Quality Control Plan (QCP), test, inspection and checks for Construction.
Process of approval and the procurement of materials, regulations and Determined Permit as requirements.
4.3. Construction Management This Construcstion Management is Managed by Project manajement that consist of main
Personal. Team of Project management will draft of Construction Stage refers to Stage Construction in the Contractr document. Next, based of Stage / Sequence Construction will be
made Construction Method as Payment Item as Bill of Quantity. It was to get how to effective and effcient based on Existing site and Controlling risk during contruction until Finish
4.4. Site Management This activity is an arrangement of placement of equipment, materials and labor of accordance
with the sequence of work and working methods to be applied.
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4.5. Construction Stage / Sequence of Construction Sequence of Construction is a sequence of physical Construction and it’s very important and as
a basis for mobilization / demobilization of personnel, equipments, materials, as according to kind, capacity and schedule when needed
4.6. Construction Method Based on the Sequence of Construction then made construction methods in detail in
accordance with technical of construction and other determined specified in the contract documents. Mean of Construction Method to determine of Equipments, materials, and labor to
goal of plan of target productivity and also function for quality control and control of construction schedule to get the target of commitment contracts.
Construction Method each Works Item are test & Commisioning (Ok & No) and continue, that became Construction as according to the tender document (BQ, Shop Drawing & technical
specification) and on time / as time schedule
4.7. Quality Control Plan
Quality Control Plan is activity of making shop drawings, procurement and mobilization of materials, equipment and skilled personnel selection process.
4.8. Safety and Health of Work (K-3)
Safety and Health for Labor or other wise determined should be ensured with Made of Team K3 Project
4.9. Others Determined Standard (Like; socialization, etc)
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Flow Chart of Technical Control / Site Management
Work Contract
Permit Learn of Contract Coordination with Owner & Consultant Supervision
Survey & Measurement Notes :
Construction of work item
Construction of next work item
Engineer & MC0
Ok
No
Ok
No CONSTRUCTION
Request of next work Item , etc
= Cek :
- Shop Drawing & BQ
- Technical Specification (include Inspection & Test Quality
Control
- Approved Consultan Supervision &
Owner
Request
Construction of next work item, etc
Ok
No Construction of work item
Ok
No
Request of next work Item
Ok
No
START
FINISH
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FLOW CHART OF CONTRUCTION
SELESAI
Understanding of contrac rules (Pemahaman Syarat
Kontrak)
Understanding of contrac rules
Check
No
Yes
Socialization Pra Construction
Permit with 3d party (Perijinan dg Pihak
Terkait)
Scope of Works (Scope Pekerjaan)
Coordination with Owner & consultant supervision
(Koordinasi dg Pihak Owner & Konsultan
Penawas)
Input from Owner & consultant supervision (Masukan dari Pihak Owner & Konsultan
Penawar)
Check
No
Yes
Check with owner of Scope of contract
Check
No
Yes
Construction of scope of contrac (as conctruction
flow chart & BQ)
Field Engineering (Pembuatan Gambar
Pelaksanaan)
Check
No
Yes
Shop Drawing (Gambar Pelaksanaan)
Construction (Pelaksanaan Pekerjaan)
Check
No
Yes
Primary Hand Over (Serah terima Pekerjaan)
(PHO)
Maintenance (Pemeliharaan)
Final hand Over (Serah Terima Akhir) /
(FHO)
Prepair
Yes
No
As Build Drawing
Check
No
Yes
START
FINISH
FINISH
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TRAFFIC MANAGEMENT With Work site without disturb of Traffic Existing, the Traffic Management and Construction can be
execute at same time
Traffic using Rubber Cone as border between work site and traffic existing.
Traffic Sign Rubber cone
Fabrication of Rubber cone. Form as according to technical specification, continued placing on determined location as signs / bottle neck of the traffic.
Flagman
Flagman is placed on all construction that disturbing of traffic flow. The flag man instructing and manage of traffic flow that passing and around the construction.
Traffic Management
During Construction
Traffic Management
for Hauling Material
Ex Excavation to Disposal Area and
Mobilization
Equipment for Construction at
Project Location
Others Equipments Will be Mobilized via Existing Road (Dump truck, Excavator, etc)
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5. DETAIL CONSTRUCTION METHOD
5.1. General 1. Mobilization / Preliminary Works
Description Upon the signing of the contract, the contractor for with initiate site activities by first
mobilizing and demobilizing (preliminary works) of works including :
1.1. Mobilization of the contractor’s personal who are competent and experienced,
consisting of office staff site personal as according to the key personnel list proposed within the bid offer documents.
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1.2. Procurement of site facilities according to the specifications in the tender documents such as : Board of directors with dimension as according in BQ, the contractor’s office, the
material warehouse, material storage, site water supply, communication apparels , the project’s name board, and other facilities required.
Measure just for sample ( no reference), Real measure as determined or as field condition.
Base Camp
4
1
2
3
56 7
89
KETERANGAN :
1. Kantor Kontraktor
2. Mess Pekerja
3. Laborat
4. Gudang
5. Musholla
6. Kantin
7. Klinik
8. Mobil & Motor pool
9. Pos Jaga
JalanKerja
10.Tandon Air
10
8
Stock Yard
Image above only lustration of ” Construction of Base Camp” in the Project. Measure and real form as Field condition and needed.
CONTRACTOR FACILITIES / KEET DIRECTION
BARAK PEKERJA/BASE CAMP
DIREKSI KEET
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GUDANG/STORAGE
Gudang/Storage
BENGKEL KERJA/WORK SHOP
> Worshop and office Fabrication
Base Camp / Site Installation
1. Problem - Plan of Base Camp in Empty Space that already
Owner is Right side / South of access road. 2. Solution
- Contractor will rent from the owner while in the
process of rent will be assistant by Owner and other determined.
- After Approved by both of parties, contractor will constructed of base camp with accessories
required
- Around location of base camp will be given zinc fence as a barrier (with entrance-exit) are painted and given a logo contractors and other symbols required
Base Camp
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1.3. Board of Project name and Fence of Base Camp Board of Project name
Board of Project name made of Multiplex or Aluminum Plate and Frame of wood beams inscribed project name, project number, Project Cost, Fiscal Year and name of contractor
or determined in accordance with the technical specifications.
Base Camp’s Fence.
Base camp Needed Fence with determined Location (near / close with public ). Fence is made by zinc waves minimum 180 to 200 cm of the
soil surface with a wood frame or other specified technical specifications. Safety fence is intended to facilitate surveillance and
patrolling the incoming material and facilitate the control of the
environment and out of base camp.
Material and Tools were needed for this work :
a. Materials : Borneo Wood 5/7, Zinc waves BJLS 32, paint and anchor b. Tools
Construction Method :
- Cutting of Kaso wood as according to Height of Plan of fence as base of fence, forming as determined so that fence can stand up.
- Installing of Fence on kaso wood already stand around base Camp
- Painting the fence with contras color.
1.4. Mobilization of equipment among others : genset, theodolite and water pass, tamper & Pedestrian Roller, Excavator, Crane, etc, as required in the tender document.
1.5. Site Survey Works Description :
Initial survey to check the reference poles (Bench Mark Point) will be performed jointly with the Consultant and the Engineer immediately after the contract is signed or after the
issuance of Notice to Proceed.
The measurement will include:
Checking of reference points (BM) by measuring the polygon and water pass in order to find the actual (x,y,z) coordinate of the BM points, which will be compared to the BM
points data as seen on the drawing, from where could be seen weather it is still in good condition or not.
The construction/installation of the temporary BM to facilitate staking out during
performance of work. Surveying must be carried out by Surveying team using equipment as follows :
- The Total Station or EDM for the measuring of polygon. - Automatic Wild Nak level complete with its static and measuring aluminum measuring
rods (4m) for the water pass measurement.
The result of Measurement will be reported to the Consultant and the Engineer for comments and approval.
Further, the result of measurement will be applied for preparation of shop drawing, calculation MC0 volume, also as reference for implementation of the physical work.
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FLOW CHART
1.6. Traffic Management For construction, The traffic using traffic sign.
Signs from wood/wooden plate
At first The signs from wood/wooden plate made as according to technical specification and placing on determined location. Execution using labors and tools (hammer, saw,
etc)
Rubber cone
Fabrication of Rubber cone. Form as according to technical specification, continued placing on determined location as signs / bottle neck of the traffic.
Flagman
Flagman is placed on all construction that disturbing of traffic flow. The flag man instructing and manage of traffic flow that passing and around the
construction.
1.7. Water Supply Work Water and Electricity Work
Water Supply by boring well or PDAM, for working and water in Base camp environment,
clean water from sludge, oil and other chemicals for the purposes of sanitary workers. Waste Discharge / Dirt, with the waste stream into a Septic tank
Supply of electric by temporary connecting of PLN during construction or supply electric
with self by Genset with enough power during construction
1.8. Documentation and Project Administration
During project needs a portrait photo documentation of construction from 0% to 100%, which is collected in an album for weekly and monthly reports or determined according to
technical specifications and will be submitted to the project owner.
All administration of the project; Contract work, Licensing, Shop drawings, Work Request ,
Work Progress in daily, weekly and monthly, correspondence, As build drawing, Archiving, documents relating to the Construction, etc carried out by the contractor with systematic,
neat and accurate to implement procedures that exist on ISO’s Standard by Contractor’s
ISO Standard
1.9. Environmental response and Licensing / Permit Contractor will permitting that relates directly or indirectly to the Related Parties, either
Party Government and private parties / outside Government Agencies (also relevant parties around the project / socialization), It is important to ensure of "Clear of process "
Construction in order to get “on time schedule / schedule of Construction. In the Permit
Process, contractor will require cooperation and assistance of owner to facilitate of permitting process related.
PENGECEKAN TITIK REFERENSI BM (BENCH MARK)
PEMBUATAN DAN PEMASANGAN PATOK-PATOK TBM ( TEMPORARY BENCH MARK), JIKA DIPERLUKAN
PENGUKURAN KONDISI EXISTING
SURVEY DAN PENANDAAN LOKASI PEKERJAAN.
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1.9.1. Construction of Work Permit In this construction, we also implement standardized procedures in accordance
with the quality system owned and inform / permits each stage will perform the work, so in the future does not happen the things that are not desirable and to
avoid disassembly work resulting in delays and increased costs .
1.9.2. Shop Drawing, As Built Drawing and Documentation
- Each Constructions begins with making the proposed shop drawings for approval Supervisory Consultant.
- Shop Drawing made by the Site Engineer (each field) and signed by the Project Manager prior to submission to Consultant Supervisor.
- Approved Shop Drawing Supervision Consultant is distributed to each Project
manager respective as a reference of each construction type. - The construction of each type will drawn in As Built Drawing.
- Stage Documentation of Each Construction type for purposes of the project report.
- Activity-making shop drawings, as built drawings, documentation of ongoing
since the project started until the end of the project.
1.9.3. Construction Materials To maintain of Quality Control, the materials that will be used in this construction,
should be proposed sample for approval by Consultant Supervisor
All material to be used in this construction completed by manufacturer’s
specification as brochure and also referring to technical specification and technical procedure.
In this construction, contractor will be prepared and made the specimen as
according to standard determined
1.10. Construction Method to Goal of Work construction as “On Time & Quality as
according to technical specification” Early Finishing of Time Schedule (Percepatan Waktu Pelaksanaan Pekerjaan)
- To Early Finishing of Construction (as time schedule) and fully determined Quality as
according to technical specification, The contractor will be powered (Labor,
Equipment, Example: Concrete By Ready Mix, All construction will use good Condition of Equipment work Estimate on schedule & Quality.
1.11. Site Management - With one package and area, the mobilization of equipment & Personil / labor will
Clear (undifficult) / make less times. Equipments puts in base camp an soon as posible to mobilized into work site while
the construction will begin
- Traffic Management Start – During – Finish
Supplying & Handling of The Material 1. CCSP, Spun Pile and Embankment Material
- Supplying by good Supplier
2. Concrete - Supplying by Batching Plant Ready Mix
- Supplying by Concrete Mixer
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1.12. Other a. Diversion Chanel / Management System of Drainase
Generally, this project does not need Diversion Chanel. For determined location, if necessary a Diversion chanel (costruction was conected with
water existing), the contractor will make a diversion chanel with dimension of drainage
as volume of water existing
Next, if Project is finish, the diversion chanel will be return to existing condition.
b. Dewatering/unwatering For determined location, if necessary a Dewatering (costruction was conected with
water existing), the contractor will make a dewatering by Sand bag, and water will
pump to out site by water pump.
c. Protection construction
Generally, this project does not need protection Construction
For determined location, if necessary
a Protection Construction, Specialy
excavation work that possible have slide down, contractor will make a
Protection Construction by Dolken on excavation side (between excavation
location and existing)
Dolken will installed / pilling each
± 0.3 m
d. Other Mobilization - Communication equipments supplying
- Make and supplying As built Drawing. - Other equipment as according to Tender Document
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5.2. Detail Construction
5.2.1. Preparation and General Work Already Description on Previous Page
Survey & Measurement
Personal Mobilization
Equipment Mobilization
Etc (as List Equipment)
Electrical supplying
Documentation
Water Supplying
Shop Drawing & As Built Drawing
Others works as according tender document (BQ)
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5.2.2. Safety Tools ( using by labors) /Peralatan K3 dipakai oleh pekerja Proyek There are several tools that are used to protect a person from
accidents or hazards that may be going on in the construction process. This equipment shall be used by someone who works
in a construction environment. This equipment shall be used
by someone who works in a construction environment.
Health and safety are two very important things. Therefore, all companies konstraktor shall provide all necessary equipment /
personal protective equipment or personal protective equipment (PPE), as according to below:
1. Work Clothes / Dungaress
The purpose of work wear is to protect the human body against the effects of
an unhealthy or that could harm the body. Cause Character of the project site construction, which generally reflects the harsh conditions of work clothes
should be used is also not the same as the clothing worn by employees who work in the office. The company clearly understands this problem generally
provide as many as 3 pairs in each year.
2. Safety Shoes
Safety shoes is foot protection. All Labors should wear shoes with thick soles
to be able to freely walk everywhere without getting hurt by sharp objects or possessed by the dirt from the bottom. Face of shoe should be loud enough
for foot does not hurt when falling objects from above.
3. Work Glasses
Safety glasses are used to protect eyes from dust wood, stone, or metal debris
floating in the breeze blow. That the dust particles are so small that sometimes are not visible to eye. Therefore, eyes need to be protected.
Welder is Usually use this glasses for weldening
4. Gloves Gloves are required for certain types of jobs. The main purpose is the use of
gloves to protect hands from hard objects and sharp for its activities. One of the activities that require lifting gloves are reinforced steel, wood, etc
5. Helm Helmet is important to use as headwear, and is a must for any construction
workers to use it properly according to the rules. This helmet is used to protect the head from the dangers that come from above, such as no goods,
either equipment or construction material falling from above. Indeed, we often see the discipline of labors to use is still low which can certainly harm
themselves.
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6. Ears Plug
This tool is used to protect the ears from the sounds issued by a machine that
has the volume quite loud and noisy. Sometimes the effect is for the long term, if every day hear the noise without earplugs this.
7. Fire extinguisher Lightweight (APAR=Alat Pemadam Api Ringan) If there is a fire in the workplace, immediate action is taken to extinguish a
fire light as the initial action. If not sufficient, please contact The fireman.
8. First Aid In case of accidents both light-and heavy construction workers, first aid should
be done on the project. Contractors are required to provide drugs that are used for first aid.
First Aid standard equipment on the project and it must be provided by the
contractor, perhaps mandatory. Remember preventive measures are much better and cheaper than was incident.
9. Signs and Safety Instructions Signs and Safety Instructions was performed at the beginning and during the
work progresses. Signs and instructions posted on site where the sign is and is useful as a sign / warning workers or others.
10. clothing buoy Clothing buoy Should be wear for construction Period for construction on at
water
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FLOW CHART OF CONSTRUCTION
Contract
Mobilization
Survey & Measurement
Shop Drawing Construction Method
START
Earth Work and Demolishing of Structure
Existing
Cek
Ok
No
CCSP - Left and Right River
- 2 Group
Traffic Management
Next Flow Chart will be described on next page
FLOW CHART OF CCSP
& FLOW CHART OF
REVETMENT
Cek
Ok
No
Mob. Equipments for earth work
Traffic Management
RC Pile 20x20 - Left and Right River - 2 Group
Next Flow Chart will be described on next page
FLOW CHART OF RC
Pile 20x20
Next Flow Chart will be described on next page
FLOW CHART OF PARAPET
(RETAINING WALL)
Parapet - Left and Right River - 2 Group
Excvation of River Bank - Left and Right River - 2 Group
Parapet - Left and Right River - 2 Group
Cek
Ok
No
Cek
Ok
No
FINISH
Mob. Equipments for earth
work
Traffic Management
Next Flow Chart will be described on next page
FLOW CHART OF ROAD
ROAD - Right River - 1 Group
Embankment For Dike (borrow material)
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DETAIL FLOW CHART
FLOW CHART of EXCAVATION of COMMON SOIL FOR STRUCTURE BY MACHINERY
SURVEYING WORKS
EXCAVATION
EXCAVATED MATERIAL
CHECK
YES
NO
CHECK
UNSUITABLE MATERIAL / WASTED
MATERIAL
SUITABLE MATERIAL /FILLED MATERIAL
Thrown of Excavated material into disposal
area
Direct Filling in work location /
Filling Area
collected and stocked in
temporaryplace.
Back Filling
Back fill / Common embankment
START
FINISH
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FLOW CHART of EMBANKMENT FROM BORROW AREA
*Process in Quarryupto into work site
Start
Excavation in
Borrow Pit
area
Suitable Unsuitable
Excavation &
Delivery
Filled area
Spreading Layer 1
Thickness >20cm
Compactor of
Layer 1
Check of thickness
Compact Max= 20cm
Check density
of layer 1
Spreading of layer
2N
Compactor of
Layer 2N
Check density
of layer 2N
Forming Finish
Grade
Check Top Level
Final Compaction
Check density
Trial Compaction
FINISH
No Process
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FLOW CHART OF CCSP
Pilling Process
pemancangan
Transportation of Sheet Pile
setting out Of location Pilling
Guide Beam Installation
Placed Sheet Pile on Work Site / stock area
Installation of Sheet Pile on Vibro Hammer (Pilling equipment)
Pilling
Finished Pillingi / Piled Sheet Pile
Check
No
Yes
Delivery of Sheet Material on Trailer
Check
No
Yes
Order & Manufacture By Supplier /
Sub Contractor
Equipment Mobilization (Crane with
Vibro Hammer)
FINISH
Anchor by Tie Rod dia. 32 mm (at location to determined to the drawing
Construction Of Revetment
Geotextile and Borrow embankment
Cyclope concrete
START
Finished Earth Work (Structure Excavation) & Temporary Embankment
Ok
No
Lean Concrete
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FLOW CHART OF REVETMENT
START @18m
Finished of CCSP Work
hekCh
ek kOk
oNo
Gravel Bedding
Chek
Ok
No
Base Concrete (Reinforcing, Form work and Concreting
K225
Chek
Ok
No
Base Concrete (Reinforcing, Form work and Concreting
K225
Chek
Ok
No
Top Concrete (Reinforcing, Form work and Concreting
K225
Chek
Ok
No
Placing Concrete Block and Weep Hole
Chek
Ok
No
Embankment from borrow
area
Chek
Ok
No
Fabrication of Concrete Block at Base Camp
Chek
Ok
No
Delivery FINISH
Construction Next Revetment
Chek
Ok
No
Joint Filler (elastic material)
Chek
Ok
No
FINISH
Earth Work (dike embankment)
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FLOW CHART of RC PILE 20x20
Driven Process
Loading and Delivery on Transportation Vehicle
Transportation of material
Setting out of Piling
Aproval
Placed into Work Site
Connecting (if any)
Finished Pile Driven
Cut of Top Pile (If any)
Pile Driven
FINISH
START
Finished Earth Work (Excavation of River bank)
Ok
No Finished Earth Work (Structure Excavation)
Ok
No
Pile Driven
Ok
No
RC Pile Installation at Driver Pile
Ok
No
Ok
No
Ok
No
Next Construction (Parapet / Retaining wall
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FLOW CHART OF PARAPET (RETAINING WALL)
Sand & Lean Concrete
Chek
Ok
No
Reinforcing Steel & Formwork (Footing)
Chek
Ok
No
Concreting
Chek
Ok
No
Reinforcing Steel & Formwork (Wall)
Chek
Ok
No
Concreting
Chek
Ok
No
Back Fill by selected excavation
Chek
Ok
No
FINISH
START (1 Segment)
Finished Earth Work (Structure Excavation) & RC Pile 20x20
Ok
No
Finished Earth Work (Excavation of River bank)
Ok
No
Next Segment
Chek
Ok
No
Joint Sealent
Chek
Ok
No
FINISH all Parapet
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FLOW CHART OF ROAD
START (1 Segment)
Finished Earth Work (Structure Excavation)
Ok
No
Wet Masonry 1pc:4sand
Chek
Ok
No
Instal Galvanis Pipe , Reinforcing steel and Form
work for Column
Chek
Ok
No
Concreting for Column
Chek
Ok
No
Reinforcing steel and Form work for sloof
Chek
Ok
No
Back fill with Selected excavation
Chek
Ok
No
Precast Concrete Curb & back Fill
Sand & Paving Block / Precast concrete Tile
Chek
Ok
No
FINISHED
Next Segment
Chek
Ok
No
Elastic Joint Filter
ChekC
OkO
NoN
FINISHED
Next Construction (Embankment for dike with Borrow material)
Installation Wire Mesh Fence
Chek
Ok
No
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DETAIL CONSTRUCTION OF WORKS ITEMS
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CONSTRUCTION METHOD FOR EARTH WORK
Description;
Construction of Earth Work will be devided of some Types;
1. Land Clearing and Demolishing
1.1. At Location as determined to the drawing
2. Excavation at Structure Plan; 1.1. By Heavy Equipment / Excavator & Dumptruck
1.2 By labors and Tool Usualy at base structure for prepare work
Unsuitable Material Ex Excavation will be trohwn to disposal area
Suitable Material Excavation will be used to Back fill Selected Excavated Material by Man
Power (or otherwise determined to technical specification)
As technicaly, Contruction will need Transportation Equipment
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1.3. Location - CCSP Location
- Other Location as determined
1.4. Hauling Material
3. Embankment Embankment material from Borrow Area
- Structure Embankment
- Dike Embankment
- and Other Location as determined to the drawing
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Land Clearing & Grubbing
Land Clearing from unsuitable material as according technical
specifications(shrubs, grasses, shrubs, trees, pillars, existing
structure, etc.)
Equipment:
- Chain saw
- Bulldozer
- Excavator Loading
- Dump Truck hauling &
Dumping into disposal area
- Stripping of Soil Stripping done into a minimum of 15-20cm (as determined to
technical specification). The
trees were removed to its roots, then the roots of the
former filled with soil and then compacted.
if permitted, wood and twigs
were collected for later burned.
Collection and burning the material ex cleaning in sites is
considered safe, protected and no harm / harm the environment.
The remaining combustion is
extinguished altogether covering, re-planted and neatly.
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Demolishing
Assumption : 1. Work by Labor and Tools
2. Work Location :Structure Existing as according to the drawing
Description : This work include all Demolishing in boundary plan according in drawing, removal, transportation, dismissal of structure existing, forming of excavation area and completion of open exaction area,
according to specification and line, height, sloping, measure and cross section which written in drawing and guide of Supervisor consultant.
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Excavation Work
Excavation Common Soif for Structure by Machinery Assumption : 1. Work by heavy equipment ( mechanically)
2. Work location : As according to the drawing / Common excavation
Description This Work include all excavation in boundary plan according in drawing, removal, transportation,
useful or dismissal, forming of excavation area and completion of open excavation area, according to specification and line, height, sloping, measure and cross section which written in drawing and guide
of Supervisor consultant.
Works Sequences : 1. Work of Preparation include :
- Preparation of Shop Drawing till get approval from Engineer
- Preparation of Equipments work and man power / Labors - Traffic Management (if needed) For hauling and handling of material ex excavation
2. Work of Measurement.
- Before excavation started, must be done work of Measurement to know and boundaries of plan of excavation elevation by installation of stake marked with paint.
3. Excavation
- Excavation must be done according to height line and of elevation which shown in drawing. - Suitable of Excavated material to be deposit / collected and stocked in temporary place around
the excavation area or to be transported by dump truck direct to fill area (Embankment).
- Unsuitable material will be transported with dump truck thrown to area disposal agreed by director/Engineer.
Equipments :
- Excavator for excavation and load to dump truck - Dump truck to the transportation of excavated material.
Construction
Work Equipment & Used
Excavation
=
1.
2.
Excavator
For Cutting / Excavation in Cutting area and loading
into dump truck for transported into Embankment area (suitable material) of into wasted area /
disposal area (unsuitable material / unused material)
Dump Truck
2.1. Suitable material
To delivery the excavated material into Embankment are
2.2. Unsuitable material and Wasted material To delivery the excavated material into wasted
area / disposal area
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Image
Excavation By Excavator for the location that probably work can using
Heavy Equipments
Structure Excavation, 0 – 2 meters in depth.
Generally, slope is made straight vertical, or otherwise determined as according to site condition , the slope is
made 1:3 or 1:2
Structure Excavation, 2 – 4 meters in
depth. Generally, slope is made 1:3 or 1:2
Handlling and Hauling of Excavated material
For Back Fill, Compaction by Pedestrian Roller or Hand Stamper
Suitable material
To delivery the excavated material into Back Fill
Unsuitable material and
Wasted material
To delivery the excavated material into wasted area /
disposal area
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FLOW CHART of EXCAVATION of COMMON SOIL FOR STRUCTURE BY MACHINERY
SURVEYING WORKS
EXCAVATION
EXCAVATED MATERIAL
CHECK
YES
NO
CHECK
UNSUITABLE MATERIAL / WASTED
MATERIAL
SUITABLE MATERIAL /FILLED MATERIAL
Thrown of Excavated material into disposal
area
Direct Filling in work location /
Filling Area
collected and stocked in
temporaryplace.
Back Filling
Back fill / Common embankment
START
FINISH
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Embankment Works From Borrow Area
Assumption : 1. Work by heavy equipment ( mechanically)
2. Work location : Structure (at CCSP and Revetment), Dike Embankment and others location as
determined to the drawing
Sample
Description This work consist of transportation, hauling, placing/spreading and compaction material to execute of construction embankment/filling
Equipments; - Wheel Loader
To Loading material Into dump truck in Quarry / Borrow pit area - Dump Truck
To Transported / delivery the material into Filling Area - Bulldozer and Excavator
To spread the material in work site.
- Vibratory Roller and Stamper To Compaction
- Water tank Truck To watering (if water rate less than determined as according to technical specification)
- Tools
1. Material
- Material taken away from location which have been agreed by supervisor consultant pursuant to specifications.
- Material consist of earth excavated agreed by Engineer.
- Materials exclude the use earth excavated of high plasticity, which classified as A-7-6 according to AASHTO M145 or otherwise determined as according to technical specification.
- Test of Material accordance with SNI 03-1744-1989, have a CBR value of not less than 6% (six
percent) after 4 day soaking, when compacted to 100% of the maximum dry density ( MDD) as
determined according to SNI 03-1742-1989 or otherwise determined as according to technical specification.
- Used material having an activity value greater than 1,25 or degree of expansion classified by
AASHTO T258 or otherwise determined as according to technical specification.
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2. Measurement Measurement And location of border line at fill area, as according to elevation and distances plan
which have been determined, where work of Measurement have to follow procedure which have been determined and can understand by site engineer.
3. Sub grade preparation of back fill and it’s procedure. Placing/Spreading of Fill material layer by layer have same thickly and wide of embankment
material as according to sloping line, cross section and contained size measure in drawing. Compacted is done after spreading have been executed as follows :
1. Layer more than 30 cm below/under sub grade level to be compacted to 95% of the maximum standard dry density / laboratory determined according to AASHTO T 99
2. Layer 30 cm or less below sub grade level to be compacted to 100% of the maximum standard
dry density / laboratory determined according to AASHTO T 99 3. Density test to be made on each layer of the compacted fill in accordance with AASHTO T 191,
T 238, OR T 205
Compaction method from low place to high place and beginning at outer edges and progress
toward the center in such a manner that each section receives equal compacted effort and in the longitudinal direction
4. Water Rate.
If embankment do not contain enough water rate, require to watering by water tank reach optimum water rate. If embankment too wet hence require to be dried first before compacted.
5. Amount of Passing Compaction. Passing Compactor appliance determined pursuant to result of Trial Compaction which have been
agreed, as according to embankment type and utilized appliance type.
Common Embankment
Placing/Spreading of Embankment material layer by layer have same thickly and wide of Fill material as according to sloping line, cross section and contained size measure in drawing and
technical specification.
Material on Quarry / Borrow Pit Area Work by Wheel Loader
Material on Quarry / Borrow Pit Area
Work by Excavator
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Embankment Construction Placing/Spreading of Fill material layer by layer have same thickly and wide of Fill material as
according to sloping line, cross section and contained size measure in drawing and technical specification.
Penghamparan dengan Bulldozer
Compaction by Vibratory Roller
Watering in filling process (if necessary) Watering is given to full of water rate as according to
technical specification
Trimming By Excavator (if neccersary) as according to the drawing Dike Embankment
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FLOW CHART of EMBANKMENT FROM BORROW AREA
*Process in Quarry
into work site
Start
Excavation in
Borrow Pit
area
Suitable Unsuitable
Excavation &
Delivery
Filled area
Spreading Layer 1
Thickness >20cm
Compactor of
Layer 1
Check of thickness
Compact Max= 20cm
Check density
of layer 1
Spreading of layer
2N
Compactor of
Layer 2N
Check density
of layer 2N
Forming Finish
Grade
Check Top Level
Final Compaction
Check density
Trial Compaction
FINISH
No Process
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CONSTRUCTION METHOD FOR CCSP
Description; - Structure Type Segmental (@ 18m) - Work of CCSP is conecction with Revetment work Finished of CCSP will continue with Revetment
Work
- Construction; Based of The drawing, Work site divide to 2 side of River. North River (left side) and South River
(Right side). For this Construction, Contractor will construction this work by some Group of Works
Base of Equipments to Construction this Work and access road;
Right side / South Left side / North
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Notes;
Stage 1; - Site Condition Almost there is no Access Road
- Almost, Construction will be Constructed Via River (on Pontoon)
- on some location, If work site can be reach by access road, Construction will be constructed from
Land
Notes; Stage 2; - Site Condition Almost there is Access Road
- Almost, Construction will be Constructed from Land - on some location, If work site can,t be reach by access road, Construction will be constructed from
River (on Pontoon)
- Work group from Construction of Stage 1 (Construction had been finished), will be mobilization to construction on Stage 2 location
All construction will be constructed From Up stream (Hulu) into Down Stream (Hilir)
Stage 1 (2 Group)
Stage 2 (2 Group)
Group 1 Group 2
Group 1 Group 2
Work Direction
Work Direction
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Construction Method for CCSP (Corrugated Concrete sheet Pile)
Refer to Tender Document, Work Stage / Construction Plan will be Constructed as bellowing Drawing
Existing
- Excavation For Structure
- Temporary Embankment for
Construction Yard - Temporary
Cofferdam (sand
Bag)
Driving of CCSP Via River by Pontoon (if construction can’t be constructed from Land)
- Driving for CCSP
Cofferdam
Temporary Embankment
Excavation for Structure
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Driving of CCSP from land
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Corrugated Concrete
Sheet Pile
Excavation of
Temporary
Embankment for replacing Borrow
embankment & Geotextile
Placing geotextile and Embankment of
Borrow material
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Cut Top Pile
Anchor
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Reinforcing of Capping Beam and Partition
Wall
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Form work of Capping
Beam and Partition Wall
Concreting of Capping
Beam and Partition Wall
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FINISH
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Works on Excavation (there is no Temporary embankment, at Construction period not need Cofferdam
and Temporary Embankment)
- Finished
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- Next Back fill with
Borrow Material (bottom cyclope)
- Lean Concrete
- Cyclope Concrete - Back fill and
embankment with Borrow Material for
Revetment
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Construction Method for Revetment
- Gravel Bending
- Base Concrete
Top Concrete Frame - Reinforcing
- Form work
- Concreting
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Back Fill with Borrow
material
Placing for Concrete Block 3x30x10 K. 175
and Closing concrete
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Embankment For Dike
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Construction of River Revetment is Segmental with @ 18 m
Jointing / Construction Joint for one Segmental Revetment with each other by Joint Filler (elastic
Material) as according to the Drawing
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- Construction by Segmental (@ 18 m)
- Construction will be Constructed by Continue, Mean that when work CCSP up to @18 m, the next
construction should be done. -
Illustration;
Stage 1 - CCSP Work
Stage 2
- CCSP Work - Capping Beam and other Work
Stage 3
- CCSP Work
- Capping Beam and other Work - Cyclope
Stage 4 and soon - CCSP Work
- Capping Beam and other Work - Cyclope
- Revetment and other work
Capping Beam CCSP
Cyclope Capping Beam CCSP
Cyclope Capping Beam Capping Beam CCSP
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Detail Construction Of CCSP Work
Assumption:
1. Work by Heavy Equipment (Machinery) 2. Location : As according to the drawing
3. Material CCSP with Water Jet System and Have no water jet System
Description
1. Site Work Preparation - Work site made with good level that a Crane can stand up goodly
- Crane stand up above plate of form which in the form of steel plate 1,5 x 6 meter.
2. Stake point of Pilling - Stake point of pilling of Concrete Corrugated Sheet Pile is executed by surveyor which is approved
/ agreed by Consultant Supervisor
3. Fabrication of Material Steel sheet pile
- Fabrication / manufacturing of Concrete sheet pile is formed after the drawing has been approved by Consultant supervisor.
- Delivery to work site
4. Pilling
- Excavation by labor to get form of pilling
- Made of guide beam on pilling position using steel material WF type with elevation distance from sub grade 1 to 2 meter, before pilling is executed
- Guide beam is made with strength enough that can supporting of moment when pilling is executed and stabile
- Piling founded by vertical and monitored with measuring instrument ( Theodolite) and yarn in 2
direction which each other vertical
- Before pilling, pile with Vibro hammer have to in position of sentries
- Concrete Sheet pile is vibrated by Vibro hammer is and the Sheet pile will be pilled into ground
cause of gravitation moment and weight of Sheet pile it selfand also helped by Water Jet Pump
that spraying water, that mean this construction to easyly andalso helped byWaterJetPump thatspraying waterwhichis intendedtosoften of soileasierPilling proccess
- Vibratory is executed as sequence.
- At pilling time, between one of Steel Sheet pile and each other of side (has been pilled) if there is gap, can be near by trek beam.
- Pilling is executed until a Sheet pile reach deepness elevation plan as according to the drawing.
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Pengadaan dan Transportasi Material Sheet Pile
Construction CCSP by Water Jet System
- Water Jet Pump that
spraying water, that mean this construction to easyly
andalso helped
byWaterJetPump thatspraying waterwhichis
intendedtosoften of soileasierPilling proccess
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At determined location, Sheet pile will be strength with Anchor
Description;
- Finished Sheet pile, at location where sheet pilet ierod/anchor will be installedin pit / hole sheet pile
that has been provided (pit / boring by ConcreteDrill)
- Material of TieRod Steel D32 (coating withgrease) insertedinto hole. At the end of threaded TieRod,
Bolt was given and CNP (as according to the drawing). Next bolt in will be installed with tied.
- Other side of sheet pile, will be installed of Tie rod with as same as squence work.
- Next, Both of end tie rod wll be united / connected by "Turnbuckle". Thisturnbucklebeside
asconecting, as fasteners to (beside a bolt on sheet pile it self)). After Tie rod installed
andtension/tightnessis obtainedby Caping Beam as according to the drawing.
- Continue with construction on Tie rod that cross section as according to the Drawing ( Sand embankment, lean concrete and Cyclope concrete)
Detail of Caping Beam
Caping Beam - Reinforcing Steel
- Form Work
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- Concreting as according to the
drawing and technical specification
Finish
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FLOW CHART OF CCSP
Pilling Process
pemancangan
Transportation of Sheet Pile
setting out Of location Pilling
Guide Beam Installation
Placed Sheet Pile on Work Site / stock area
Installation of Sheet Pile on Vibro Hammer (Pilling equipment)
Pilling
Finished Pillingi / Piled Sheet Pile
Check
No
Yes
Delivery of Sheet Material on Trailer
Check
No
Yes
Order & Manufacture By Supplier /
Sub Contractor
Equipment Mobilization (Crane with
Vibro Hammer)
FINISH
Anchor by Tie Rod dia. 32 mm (at
location to determined to the drawing
Construction Of Revetment
Geotextile and Borrow embankment
Cyclope concrete
START
Finished Earth Work (Structure Excavation) & Temporary Embankment
Ok
No
Lean Concrete
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FLOW CHART OF REVETMENT
START @18m
Finished of CCSP Work
Chek
Ok
No
Gravel Bedding
Chek
Ok
No
Base Concrete (Reinforcing, Form work and Concreting
K225
Chek
Ok
No
Base Concrete (Reinforcing, Form work and Concreting
K225
Chek
Ok
No
Top Concrete (Reinforcing, Form work and Concreting
K225
Chek
Ok
No
Placing Concrete Block and Weep Hole
Chek
Ok
No
Embankment from borrow area
Chek
Ok
No
Fabrication of Concrete Block at Base Camp
Chek
Ok
No
Delivery FINISH
Construction Next Revetment
Chek
Ok
No
Joint Filler (elastic material)
Chek
Ok
No
FINISH
Earth Work (dike embankment)
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Concrete Reinforcement
- Reinforcing Steel Bar Assumption : 1. Work manually Labors and tools (bar bender and bar cutter)
2. Work Location : Structure Concrete
Description : 1. Reinforced steel Material become delivered from factory / supplier to work Site with
quality and dimension of the reinforcing steel as according to technical specification.
Otherwise determined to the drawing, used steel bar with quality as according to technical specification and the shop drawing
Characteristic Yield Strength of U24 = 2.400 kg/cm² Soft
Characteristic Yield Strength of U32 = 3.200 kg/cm² Middle
Characteristic Yield Strength of U39 = 3.900 kg/cm² Hard
Characteristic Yield Strength of U48 = 4.800 kg/cm² Hard
2. Material put down at stock area (storage).
3. Continued assembled of reinforced steel / manufacturing, that is in the form of needed measurement of length, cutting with bar cutter and bending with bar bender and done at
the time of cold temperature (as according to ACI.315 procedure or other wise determined
by technical specification).
4. After that Reinforced steel is compiled / to be attached as according to drawing execution and his cross is bound by strength with bend rat wire / Tie Wire.
Tie wire for fastening reinforcement is annealed steel wire conforming to AASHTO M32 – 90 or other wise determined by technical specification
5. Steel reinforcing is placed so that the minimum clear covering of concrete over the
outermost edge of the main steel bar is as follows.
5.1. 3.5 cm for concrete not exposed to weather or to ground water (for example, bottom of deck slab).
Size of Reinforcing Bar to be
Covered (mm)
Minimum Clear
Cover (cm)
5.2. 7.5 cm for all submerged concrete which cannot be
made accessible, for inaccessible concrete in which failure due to rusting of reinforcement could cause
loss of life or of the structure, for concrete placed
directly against the ground of rock, or for concrete subjected to sewerage or other corrosive liquids.
Minimum Cover over Reinforcing Steel for Exposed but
Accessible Concrete
16 mm bar and smaller 19 mm & 22 mm bars
25 mm bar and large
3.5 5.0
6.0
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FLOW CHART
No
Fabrication & Installation
OK No
Ok
List Bending of Bar (BAR BENDING)
Check of material -Strength Test
Material Weighing
Get another
material
Cutting and Bending
Installation on site
Check : - Diameter - Amount - Location
Ready to be concreted
Repair
Delivery bar material from supplier and transportation into site work
Stock deposit of material/storage
Result
Result
START
FINISH
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- CONCRETE
Assumption : 1. Work use mechanical equipment 2. Work Location : Structure Concrete
Eguipment: - Batching Plant + Truck Mixer - Tools
Considerations for producing a good concrete work - The quality of the concrete depends a great proportion of the materials
used such as cement, sand, aggregate and water - Lack of cement in the concrete mix causes less qualified and weak - Too much water leads to poor concrete quality - It is important to measure and add gravel and sand separately to create a
quality solid concrete - Always use a clean gravel
Description : Equipment ;
- Batching Plant & Truck Mixer
- Concrete Vibratory - Tools
A. Work Preparation.
A.1. The Work consist of the construction of all concrete structure
A.2. The Mixture material (cement, sand, aggregate) are delivered from supplier to work
location and storage. Concrete Production by Batching Plant.
It’s delivered to work location in the form of concrete ready mix and delivered by Truck mixer.
During delivery, mixer cylinder in truck mixer continue to rotate to mixing the mixture with rotation which is qualified so that the condition of the mixture has good quality
and it’s not run dry.
For storage of cement, done a special treatment. It’s storage in a weatherproof sheet
that is airtight, and has araised wooded floor (about 30 cm), which is covered with polyethylene sheeting. At all times stack of cement bags to be kept covered with an
envelope of polyethylene sheeting.
A.3. Used Concrete quality as according to concrete quality which asked in tender document and relative to Standard as below;
- AASHTO T141, T23, T126, T22
- Another Standard as asked/ as according to tender document
A.4 Used Portland cement type as according to request of tender document. Type of Portland cement conforming to AASHTO M85 except type IA, IIA, IIIA and IV
or other wise determined by technical specification. Unless other wise permitted by
the engineer, air-entraining admixtures shall not be used or other wise determined by technical specification.
Construction of Concrete Reinforcing Steel
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A.5. Water used in mixing, curing, or other designated is clean, and free from harmful
matter such as oil, salt, acid, alkali, sugar, or organic materials.
Water tested in accordance with, and meet the requirements of AASHTO T26, other wise determined by technical specification.
A.6 Coarse Aggregate, Which used ( measure / dimension) as according to request of
specification in tender document ( relative concrete standard of SNI 032-2816-1992
and AASTHO or other wise determined by technical specification) and have got approved by Directors.
Aggregate is clean and free from Mud, other smooth particle, alkali and materials organic / substance able to destroy quality of concrete.
Aggregate consist of clean, hard, durable particles obtained by crushing rock or
boulders, or by the screening and washing (if necessary) of natural river gravel and
sand.
Aggregate the used also conform with the other property specification given in table in technical specification.
A.7. Sand /fine aggregate the used is sand result of stone crushed or natural sand which got from river / source of nature and have got approvalof directors and have tested
Clean sand, free from clay, rock, materials of organic and alkali and other materials
able to destroy quality of concrete.
used sand ( measure / dimension) as according to request of technical specification in
tender document and have got approval of directors.
B. Mixing and production B.1. The material proportional of Mix design using method of determined standard in
technical specification and in accordance with the limits given in table in technical
specification in tender document.
B.2. Trial mix done and result of it will be made reference making of concrete at the time of work in work site and witnessed by directors.
Trial mix as according to request of technical specification in tender document and get the engineer’s approval.
B.3 Mix Property Requirements as according to technical specification in tender document.
B.4. Mixing :
B.4.1. The Concrete is mixed in a mechanically operated machine (Batching Plant)
B.4.2. The mixer is equipped with adequate water storage and device for accurately measuring and controlling the volume of water used in each batch.
B.4.3. The mixer is first charged with the catches aggregates and cement, and the mixer started, before any water is added.
B.4.4. The time of mixing is measured from the moment water is introduced into the
material dry mix.
C. Placement. - As preparation, work location of concreting cleared from garbage, wood cutting, bend
rat, nail and other garbage with vacuum cleaner, compressor and or water.
- Form work coated internally with mould oil till covering all surface. Leakage of form
work been checked and repaired. Construction joint with concreting before all have been coating with cal bond or cement water and also form work free from water pond.
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Before concreting instruction, all permission the needed have been managed and agreed by directors / owner and work supervisor.
- For the Concrete of ready mix, concreting done by mechanically, from truck mixer pass gutter. Concrete shall not be dropped freely into form work heights greater than 150
cm. So it’s not happened dissociation between the weight aggregate with concrete pasta, ( segregation).
- Compaction helped with adequate selected vibrator type mechanically in number. Vibrator pipe inserted into the wet concrete vertically so that it penetrate to the bottom
of the freshly placed concrete and provides consolidation throughout the full depth of section and it’s not to happened air pocket. Vibrator do not hit shutter or bar except
cover of concrete.
1. Preparation
YES
YES
Check of Material
Make trial mixture
Concreting at Site
Get another material
NO
Make another Mixture
NO
Result
Test
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2. Preparation at site
Preparing of structure : - Check dimension, elevation - Check form work of concrete - Check of Bar (amount, dimension, form) - Check material which embedded (if any)
Preparing of equipment and material : - Preparing of material (amount &
quality) - Preparing equipment (vibrator) - Preparing tools (light, pump, tend, etc)
Concreting prepare : - Batching Plant, Gutter ,etc. - Man power
Concrete mixing
Concreting & compacting Take Concrete Cube
Curing
Removal of form work
Reject Good
Repair
Work is Accepted
Good
Age 28 day Test
Check Of Concrete
Check Result
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Checking Of Cube
Take concrete cube
7 day test and otherwise determined in the technical
specification
NO Good
Evaluation
28 day Test Repair Mixture Work is Continued
NO Good
Work is Accepted Evaluation
Take sample from structure
NO Good
Dismantle
Work is accepted Notes :
- Repair mixing (if any) - Better method of working - etc.
Result
Result
Test
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CONSTRUCTION METHOD FOR RC PILE
- Construction;
Based of The drawing, Work site divide to 2 side of River. Left River and Right River. For this Construction, Contractor will construction this work by some Group of Works
Base of Work volume; for Left Retaining Wall (North) = 1 group of works
for Right Retaining Wall (South) = 1 group of work
Construction will be constructed after earth work (excavation) has been done
Detail Construction 1. RC Pile 20x20 Mini Pile
Construction
Work Sequence for this Construction from Equipment of Pile Driven Mobilization, Procurement of
Material RC Pile, Pile Driving, Cut top Pile (If any)
Pile Driven Mobilization For Pile Driving will using Pile driver, that is; Pile Driver type Drop Hammer / Mini Driver Hammer
This equipment will be mobilized into work site 1 Week before Pile Driving Process for preparation
of work that connection of Driven, there are Boom Installation and Hammer
Procurement of RC Pile
After Approval of Minutes of Procurement material of RC Pile 20x20 between Supplier and Contractor, The contractor ask to Request RC Pile as soon as possible as Technical Specification to
Director (Owner) to get approval
Ordering of RC Pile to Supplier can be executed after get the approval. The material by
manufacture with Technical Specification 200x200 mm and material length as according to the drawing. Delivery by Trailer or Flat Bed Truck
Pile Driven Sequence of Pile Driven;
- Shop Drawing - Study of Place / Pile position to Center
- Adjust the placement of the material stock piles, which is safe enough to maneuver heavy equipment.
- Location must be free of disturb that can be resist of Construction
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- Request permission to consultants Supervisory and coordination with surroundings.
- Check the marking / measurement and Center of Longitudinal and cross section. - Check of piling driver to as according to technical specification
- Check stabilization and perpendicular of Driver Machine
After all preparation driven is complete, Pile driver and RC Pile was already on site, soon Pile
Driven can be done, with Construction method as bellow: - Before Driven, RC Pile marked with flashy paint every 20 cm, as a benchmark by checking
calendaring by survey officer. - Determination of Pilling Stake. Work site as according to the drawing and installed with Stake
guard of Pilling, continue ask to approval from Owner / Director one day before Pile Driven - Pile Driven will be constructed by placing Pile with vertically position above on point Pilling
and hammer placed sentries on it.
- Each pile is placed near the location of pilling. To lift and move of pile implemented as shown below
- As a tool anvil hammer or cushion used type of wood or plywood are good enough to be
replaced periodically. - Head of RC Pile is protected from direct impact hammer with a bearing of boards or plywood
with a thickness of 10 cm. - Weight or power hammer should be enough to guarantee a final penetration of not more than 5
mm per blow.
- Hammer used is the heaviest and limit the number of strokes in order not to damage of RC Pile. - To maintain verticality Pile, then at Driven Process constantly monitored by theodolith placed
perpendicular upfront and in side of Driven Pile. - Decreased Pile that has been marked with flashy paint each 20 cm interval carefully noted the
number of strokes from the beginning to the end in Form of Pile Driving Log and then signed and submitted to Director (Owner).
- Pile Driving performed continuously until it reaches pile penetration as determined by the
Consultant / Director with a particular set of conditions without approaching Ram stroke is considered critical by the manufacturer and do not exceed the specified total number of strokes.
- Before Final penetration, made Calendaring form on paper millimeter blocks placed on RC Pile and the final decision must be approved by Director.
- Pile test by PDA method at point where the biggest burden stake occur as instructed Director (If
any / determined)
0.2 L 0.6 L 0.2 L
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Pile Driven Process
Material Transportation
Driven Process
Construction Method as Below :
At first, Cut top pile will start by cutting Top elevation by Concrete cutter (gerinda) to sign of
border, so cutting proces getting smooth On top the brder, demolishing by manually (man
with tools (Hammer, etc)
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FLOW CHART of RC PILE 20x20
Driven Process
Loading and Delivery on Transportation Vehicle
Transportation of material
Setting out of Piling
Aproval
Placed into Work Site
Connecting (if any)
Finished Pile Driven
Cut of Top Pile (If any)
Pile Driven
FINISH
START
Finished Earth Work (Excavation of River bank)
Ok
No Finished Earth Work (Structure Excavation)
Ok
No
Pile Driven
Ok
No
RC Pile Installation at Driver Pile
Ok
No
Ok
No
Ok
No
Next Construction (Parapet /
Retaining wall
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CONSTRUCTION METHOD FOR PARAPET / RETANING WALL
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Description;
- Structure Type Segmental (@ 12m) - Construction;
Based of The drawing, Work site divide to 2 side of River. Left River and Right River. For this Construction, Contractor will construction this work by some Group of Works
Base of Work volume; for Left Retaining Wall (North) = 2 group of works for Right Retaining Wall (South) = 1 group of work
North South
Based to the drawing, Location of Retaining will constructed side of River and there is Distance between Water and Location Not need Cofferdam
Construction Sequence of Retaining Wall
Type C 763 m WN.5950+12 - WN.6700+26 889 m WN.6800+29 - WN.7650+44
813 m WN.6800+15 - WN.7600
1576 m 889 m
First Stage = Footing structure
Second Stage = structure Wall
Work Direction
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- Before, Construction of Structure Excavation & Construction Of RC Pile 20x20 L=3 m Has been Finished
Pile Driven Process
Material Transportation
Driven Process
Construction Method as Below : At first, Cut top pile will start by cutting Top
elevation by Concrete cutter (gerinda) to sign of
border, so cutting proces getting smooth On top the brder, demolishing by manually (man
with tools (Hammer, etc)
- Sub Grade Preparation (compaction by Man pwer and hand Stamper) - Cut Top Pile
- Lean Concrete
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Construction
Construction will be constructed by overlaping
each segmental as Chees Board = @12m (as according to the drawing)
- Production of Concrete Ready Mix
Construction of Footing
Structure Construction;
- Reinforcing Steel and Form
work - Concreting by ready mix
Equipment;
- Batching Plant & Truck mixer
- Bar bender dan bar cutter - Concrete Vibrator
- Tools
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Reinforcing Steel and Formwork
Equipments; - Bar bender and bar cutter
- Scafolding - Tools
At construction of Reinforcing and form work, Dowel bar and PVC Water Stop should be given for construction joint next structure. Location as according to the Drawing
Concreting
Equipments; - Batching Plant
- Truck Mixer - Concrete Pump
- Concrete Vibrator
- Tools
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FLOW CHART OF PARAPET (RETAINING WALL)
Sand & Lean Concrete
Chek
Ok
No
Reinforcing Steel & Formwork (Footing)
Chek
Ok
No
Concreting
Chek
Ok
No
Reinforcing Steel & Formwork (Wall)
Chek
Ok
No
Concreting
Chek
Ok
No
Back Fill by selected excavation
Chek
Ok
No
FINISH
START (1 Segment)
Finished Earth Work (Structure Excavation) & RC Pile 20x20
Ok
No
Finished Earth Work (Excavation of River bank)
Ok
No
Next Segment
Chek
Ok
No
Joint Sealent
Chek
Ok
No
FINISH all Parapet
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CONSTRUCTION METHOD FOR ROAD
- Based to the drawing, Location of Road will be constructed side of River and there is Distance between Water and Location Not need Cofferdam
Type B 1448 m WN.4950+25 - WN.6400+10
Work Direction
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Description; - For Fence Construction, Structure Type Segmental (@ 5m)
- Construction; Based of The drawing, Work site on Right River.
For this Construction, Contractor will construction this work by 1 Group of Work
Base of Work volume; for Right Retaining Wall (South) = 1 group of work
Works Consist of; - Earth Work Structure Excavation by Machinery & Man
- Fence;
Wet masonry 1pc : 4 sand Concrete K175 for column and sloof / toping construction
Galvanish Pipe Ø 2” for holding of Wire mesh Fence
Wire mesh Fence h=1.2m Ø 6mm - Road
Precast Concrete Curb with mortar Sand
Precast Concrete Tile 30x30x6cm K-175 (for pedestrian) Other location at WN4400 up to WN 4600
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Construction Sequence
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Detail 1. Wet Stone Masonry, Mortar 1 pc : 4 sand
Assumption : 1. Work by Labors and tools (include concrete mixer)
2. Work location :Structure as according to the drawing
Description : 1. Stone materials delivered to work site.
The stone is used ;
- The stone is clean , hard, without weak seams or cracks and shall be of a kind known to be durable.
- The stone is flat, wedge or oval shaped and able to be closely interlocked when placed
together. - Unless otherwise directed by the engineer, stones have a thickness of not less than 15
cm, a width of not less than one and half times their respective thickness, and a length of not less than one and a half times their respective width.
2. Cement, sand and water with comparison / composition as according to technical specification are mixed became mortar by labor and tools or by Concrete mixer (if
necessary)
3. The stone is cleaned and watering all the surface with water before placed
4. Work by labor and tools with stage as following;
4.1. Placing of mortar; - Preparing work location as the drawings and technical specification.
- Mortar bedding layer is spread on sides of stones adjacent to the one being placed - The thickness of the mortar in the range 2 cm to 5cm and is the minimum
necessary to ensure all voids between the placed stones are completely filled.
- The extent of the mortar bedding placed at any one time is limited so that stones are placed only in fresh, unset mortar.
4.2. Placing of stones
- A bedding of fresh mortar at least 3 cm thick is placed on the prepared foundation
immediately before placing each stone in the first course. Large selected stone is used for the bottom course and in the corners. Care shall be taken to avoid
grouping of stones of the same size - Stones are laid with their longest face horizontal and the exposed face of
individual stones is set parallel to the face of the wall in which the stones are set - The stones are handled so not to jar or displace the stones already set.
At placing is provided with weep holes with location and weep hole material as
according the drawings and technical specification.
5. For elevation using with wood and yarn (between the wood)
6. Finishing after installation.
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FLOW CHART (PRODUCTION BY CONCRETE MIXER)
Water Sand Cement
Mixed by concrete mixer
Stones Material
Cleaned and
Wetted
Mortar materials
Construction (Location 1)
Finishing
Production By Labors & Tools
Ok
No
Ok
No
Distribute by Labors & Tool (handcarts)
Construction in Others Locations
Ok
No
Finishing
START
FINISH
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2. Precast Concrete for Pedestrian 2.1. Precast Concrete Curb
Assumption : 1. Work by labors and tools
2. Work Location ; concrete Curb as according to The drawing (For Pedestrian /
Trotoar)
Description : 1. Quality of Curb Material as according to technical specification produced in base
camp/work shop (Fabrication of Curb material)
2. Transportation/delivery of curb material from base camp/work shop to work location
by Flat truck/Dump truck /transport equipment
3. Base/bed of curb to be constructed ( Sand Mortar 1:3) As according to technical specification.
4. Continued, the curb installed on mortar layer and installation with smooth/well where height of curb equalized one and the other
5. Finishing after installation have been done
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FLOW CHART
Material Fabrication in
Base Camp/work
shop
Work Site Preparation
Check
No
Transportation/delivery of curb by flat truck
Ok
Stock pile material in work site.
Delivery of concrete Class
Bo by truck mixer, and
mortar production on work sites by concrete mixer
Curb Installation (include filling gap between curb with mortar)
Finishing and curing
Start
Finish
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2.2. Precast Concrete Tile (paving block) Assumption: 1. Work by Labor and tools (manually) 2. Location : For Pedestrian / Trotoar
Description: Concrete Paving Block executed after sand bedding have been finished with thickly as
according to the drawings /as according to Technical Specification.
1. Concrete Paving Block delivered to work site 2. Form/Dimension of Concrete Paving block is determined as according to Drawings
and Technical Specification.
3. Construction;
3.1. Curb, Common Embankment and Sub Grade Preparation has been finished.
3.2. Sand Bedding.
The Material is delivered into work site by dump truck and spread / placing by labor and tools. Fill compacted is 10 cm thickness as according to the drawing.
3.3. Installation / placing of paving block
The block installed to be started from back part or edge straight and walk forwards above sand bedding sand which have been spread / placed. Joint,
including chamfer between paving block, not less 2 mm or more than 6 wide
mm .
3.4. Gap between paving block and side beginning , drainage structure or other building which cannot fill with full paving block , filled with paving block which
have been cut. Cutting done with Hydraulic splitter, saw masonry , or other
equipment which result in good shape ( mechanically cut to shape tolerance when abutting curb and edges). Gap measure between side and block or
structure which more than 6mm not be accepted or paving block is laid in such a manner the block are not in direct contact with each other and that
uniform joint of between 2mm and 3mm wide are formed. No block shall be
reused if cut to less than 25% of their original size.
3.5. Continued bedded of paving block. Paving block is bedded flush by at least two passes of heavy-duty plate compactor fitted with a rubber bas-pad. The
compactor as according to technical specification. The difference in level between edges of adjacent pavers not exceed 2.0 mm.
3.6. After the units have been bedded, sand for filling the joint spread over the surface of the units and brushed into the joints that all joints are completely
filled. Joint is filled as soon as practicable after bedding and on the day the units are laid and bedded
3.7. Paved areas is further compacted by at least three passes of a plate compactor fitted or other wise determined to technical specification and approved to the
engineer (as according to trial compaction).
Compaction process it’s that the sand material can be filled gap between block interlocking
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FLOW CHART OF PAVING BLOCK
For detail Construction of
- Embankment Describe / Refer to Construction Method For Earth Work (as describe on previous page)
- Reinforcing Steel
- Concrete Describe / Refer to Construction Method For Parapet (as describe on previous page)
Paving block Checking : - Dimension - Quality of Paving block - As according to asked
specification
Result
Ok
No
Looking for another material
Delivered Paving block to stock area/storage
Delivered Paving block to work site
Paving block installation / laid by Labor an Tools
Check
Ok
No
Compaction of paving block by compactor
Next laid / Installation step by step
Curb , Common embankment (sub grade preparation) &
Sand Bending
Check
Ok
No
START
FINISH
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FLOW CHART OF ROAD
START (1 Segment)
Finished Earth Work (Structure Excavation)
Ok
No
Wet Masonry 1pc:4sand
Chek
Ok
No
Instal Galvanis Pipe , Reinforcing steel and Form
work for Column
Chek
Ok
No
Concreting for Column
Chek
Ok
No
Reinforcing steel and Form
work for sloof
Chek
Ok
No
Back fill with Selected
excavation
Chek
Ok
No
Precast Concrete Curb & back Fill
hek
k
o
Sand & Paving Block / Precast concrete Tile
Chek
Ok
No
FINISHED
Next Segment
Chek
Ok
No
Elastic Joint Filter
ChekC
OkO
NoN
FINISHED
Next Construction (Embankment for dike with Borrow material)
Installation Wire Mesh Fence
Chek
Ok
No
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6. OTHERS SUPPORTING OF CONSTRUCTION 6.1. Cooperation with the Supplier for Material Construction and Specific sub-
contractors The Contractor shall cooperate with Competent of Sub contractors and Supplier in their
field and with approval directors / Owner. Regularly and periodically, contractor will
evaluate the work and materials, where the results of the evaluation to be a reference for during Construction
if the results of evaluation of sub-contractors and Suppliers are satisfactory (Refer to
technical specifications), Contractor will continue to use services of sub-contractors and suppliers during Construction process, otherwise it will look for a replacement contractor
and other parties who are competent in their field and with the approval of board of
directors / Owner
6.2. Quality and quantity Control - To ensure implementation of quality control used Quality Management System
Standard ISO (International Standard) which is owned by the contractor include:
▪ Make Creating Project Quality Plan. ▪ Make Construction’s Procedures.
▪ Make Work Instructions. ▪ Make Inspection and Test Plan
- To ensure that any material to be used has to meet the requirements of the
specification and the production process has complied with the procedures specified
in the requirements specification and any outcome of any work actually meets the requirements of the specification and drawings, required a Project Quality Plan (Project
Quality Plan) by Technical Specifications. - To ensure the implementation of the Quality Assurance system, need a means of
quality control is to perform Internal Quality Audit and External Quality Audit conducted
periodically during the contract period.
6.3. Technical Aspects of Safety and Security Asset In this construction, specially in technical aspects of safety, contractor will implement
"Procedure of Implementation of K-3".
For Operating Procedures K-3 and Labor, Contractor / Service Provider using the
procedures specified work and has received Certificate Management System Occupational Health and Safety from the Department of Labor of the Republic of
Indonesia and OHSAS Certificates.
In terms of security of assets, contractor will work with the relevant security forces, the
internal security of the use of a reliable force in the field.
Insurance Program will also provided at starting time, during construction and final construction of project according technical specification / tender documents.
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LOGO / SIMBOL – SIMBOL K3
6.5. Critical anticipation
To ensure of Construction can be completed on time, time perion as determined by Time Schedule, translated again to schedule two (2) weekly, weekly to daily.
Monitoring of daily Schedule will be executed every day and always in "Up Date" by
Construction on work site, if delay of construction on that day, delay should be
replaced the next day, for example by adding working hours or other means so that delays can be met.
KESELAMATAN DAN KESEHATAN KERJA
KESELAMATAN
KERJA KESEHATAN
KERJA
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7. CLOSING For the construction that not be detailed in this construction Method, will be constructed as
according to;
- All detail and construction sequence will reference and as according to Construction Sequence
was described in “technical specification” in tender document, include the addendum document (if any), which apart of tender document
- All construction, with form, dimension, type, detail as according to the drawing (shop
Drawing)
- All construction reference and use and will meet all standards specified in the "Technical
Specifications" in the tender document including additional documents / addendum (if any) and other applicable standards in the Republic of Indonesia.
- Construction will be done by experts in their field
- Construction will get maximum results, precision and neat in accordance to technical specifications and the drawing.
Surabaya, 19th November 2012 PT. BRANTAS ABIPRAYA (Persero)
Ir. DANDUNG PAMULARNO
Regional III Manager