infrastructure for the mining industry

8/10/2019 Infrastructure for the Mining Industry

1/23

Infrastructure for the

Mining Industry

GHD has an integrated approach to delivering infrastructure for

mining projects. From mine concept to mine closure, the GHD

mining and infrastructure teams work closely with you to provide an

extensive range of services.

Through our 6,000 people in a network of offices in 15 countries,

GHD has a range of technical specialists to support every stage of

infrastructure for your mining projects life cycle. We understandboth the business and technical issues involved in delivering

optimum project outcomes, and have the capability and commitment

to assist you to successfully and profitably develop the infrastructure

for your mining prospect, operation or expansion plans.

For example, our approach to infrastructure development considers

the integration of the geological and mine planning, with the

environmental and geotechnical, all with an appreciation of safety

and capital and operational costs.

Our projects span the globe Asia, Australia, South America, China,

Middle East and Africa addressing diverse regional factors, anddelivering significant benefits to our clients through improved mine

development and costing strategies. Infrastructure areas that GHD

can address are broadly listed and examples for each area are

provided:

Mining development and feasibility studies;

Mine site facilities, such as materials handling ;

Environmental studies and management plans;

Telecommunications;

Power supply and reticulation;

Airport, Port/shipping, Roads and rail;

Mining town development;

Water supplies, dams and treatment plants;

Tailings dam

Geotechnical engineering;

Ports and shipping facilities;

Mine fuel supply;

Mine security


2/23

MINE DEVELOPMENT AND FEASIBILITY STUDIES

Macarthur Overburden RemovalFeasibilit y Study

Macarthur Coal Limited(30/10/06 current)

GHD carried out additional investigations into an alternativeconveying configuration, prior to embarking on a Feasibility Study.The study addressed one configuration only and involved necessarygeo-tech investigation, preliminary design and construction analysisto achieve a 10% Capital Cost Estimate.

Tampakan Infrastruc ture The Tampakan copper/gold mining project in Mindanao, the

Philippines, is a proposed 30Mtpa to 45Mtpa mine, producing700,000 to 900,000 tpa of copper concentrate.

GHD were commissioned in 2006 by Sagittarius Mines, the localsubsidiary of Indophil Resources NL, to undertake mininginfrastructure pre-feasibility and masterplanning services. Within thescope was to review a variety of options, develop preliminarylayouts and to prepare cost estimates.

Specifically, the areas of focus were:

Cargo & Marine Facility

Roads & Bridges

Power Generation & Transmission

Copper Concentrate Slurry Pipeline

Fuel Supply

Base Camp/Township

BHPB Ni West Mt Keith MineMaterial Handling

(17/11/06 current)

Discounted Cash Flow with Range Analysis and Risk Assessmentfrom CAPEX and OPEX determination of the Mt Keith operations.were performed to determine different material transport optionsfeasibility and profitability over the mine life.

Simberi Gold Feasibility Study

(1/9/05 4/1/06)

This job will pull together the various independent work undertakenby Allied Gold previously and develop a Feasibility Study on materialtransportation options for Funding Review.

Isaac River Mine DevelopmentConcept Study

The study of the infrastructure requirements to support a 6 milliontonne coal mine in the Central Queensland area. Discounted CashFlow analysis, Range analysis and risk assessment were performedfrom CAPEX and OPEX assessment.

BHPB Ni West Mt Keith MineMaterial Handling

(17/11/06 current)

To carry out a Mine Materials Handling Study for BHB Billiton NickelWest Mount Keith Mine. Alternate methods of material removal fromthe pit have been assessed including aerial conveyor systemsdirectly out of the pit

Belvedere Coal Logistics Study

(18/10/06 12/2/07)

This job involves the determination of Coal Loading cost on site, Railfreight costs, Port loading charges and a analysis of the approvalsteps along the way. This study will look at two alternativeproduction tonnages 8mtpa and 12 mtpa and will consider thepotential impact on rail freight and port charges if the Wandoan RailLink comes to fruition.


3/23

MINE DEVELOPMENT AND FEASIBILITY STUDIES

Coal Development FeasibilityAssessment,

Bangladesh (2003 current)

GHD provided technical support in the lead up to the FeasibilityStudy for the development of an open pit coal mine and powerstation development in north west Bangladesh. This included coalresource, hydrogeology and geotechnical issues, mining methods,power station systems, social, environmental, economic and landdata management assistance. GHD prepared of the Feasibilitystudy scope and the Competent Persons Report for the projectlisting on London market. GHD supervised exploration drilling toimprove the coal basin definition. GHD is currently initiating the fullFeasibility Study works program to be undertaken in 2004-05.

Loy Yang Power MineDevelopment (1992 ongoing)

GHD and its staff have provided a wide range of mining and relatedservices to Loy Yang on a continuous basis since planning for thisproject commenced in the early 1970s. Services performed includewhole of life and medium term mine planning, mine plant reliabilitymodelling, mine operational support, geotechnical engineering,hydrogeology, environmental management, tailings managementand dam surveillance for this large 30 Mt/annum mine.

Coal Development Prefeasibil tyAssessment

Bangladesh (1999 2002)

Preparation of a Concept Study and a Prefeasibility (Phase 1) studyof an open pit coal mine and power station development in north

west Bangladesh including assessments of coal resource,hydrogeology and geotechnical issues, mining methods, capital andoperational costs, infrastructure requirements and costs, powerstation system interaction and economic assessment. Furthergeophysical investigations and resource assessment work was thencompleted to improve the project definition.

Flynn Mine Concept &Prefeasibilty Studies

Victoria (2002 2003)

GHD undertook conceptual design for this green field open cut coalmine project at Flynn in Victorias Latrobe Valley for AustralianPower and Energy Ltd (APEL). Our engagement includedexploration, geological modelling and resource evaluation, mineplanning, mining methods assessment, hydrogeology, geotechnicalengineering and regulatory approvals. We are well placed to assist

APEL with detailed engineering for both the mine and processing

plant as this project is developed.

Kalimantan Mine DevelopmentAssessments

Indonesia (1998)

Development of mine design, mine scheduling, coal qualityassessment and coal quality blending to achieve optimum minedevelopment for two planned major operations in Kalimantan.

Mine Safety Training Program

India (1998 2002)

This $A3,500,000 project for the Indian Government involves theprovision of training in mine safety practices to support thedevelopment of improved work practices and systems, legislationand mine safety information systems. It incorporates the training ofgroups of Indian mine safety inspectors in Australia and coordinationwork in India.

Geological Resource Assessment

Philippines (1999)

This geological assignment formed part of a BHP Engineeringbankable feasibility study for a coal project in northern Luzon. Theproject required collection and validation of historical geological dataon the deposit and provision of specialist advice on therequirements for a resource estimate. The projects fieldrequirements included assessment of geological drilling procedures,supervision of drilling works, core logging and core sampling plustraining and supervision of local geological and technical staff.


4/23

MINE INFRASTRUCTURE PROJECTS

BMA Crinum Mine East CrinumExpansion

Design and supervision of new trunk conveyors and a 1.5km rampconveyor for the Crinum East mining operation.

PT Adaro Coal Transport System GHD has designed a 66km conveyor system for PT Adaros mine inIndonesia handling 40 Million tones per annum of coal. The conveyoris to replace a dedicated mine road system which has become asignificant community issue.

Goro Nickel Project Haul RoadDesign

(15/2/06 16/11/06)

Design the haul road between the Goro orebody and ROM pad in NewCaledonia. Road will cross two ravines and very steep country.Embankments and culverts across ravines of major significance, bothhydrologically and geotechnically. GHD to produce preliminary designsfor Permitting Authorities by 31 March 2006.

Aurukun Project - RusalAss istance

- Rusal Australia Pty Ltd

To provide input to Rusal's scoping study for their deliberations on theAurukun Project. GHD was commissioned to provide input to the mineinfrastructure - roads, bridges and airfield - as well as ports informationof two potential mine wharfs and three refinery wharf sites. Therequirement was for a quick (~2week study) providing a +/-30%estimate

Millennium No.1 Mine GeotechnicalInvestigations

-Millennium Coal Pty Ltd

GHD were engaged to carry out the geotechnical investigation of theproposed mine infrastructure. This included the GHD designed railloop, haul road, access road and water storage dams as well as thecoal handling facilities designed by others


5/23

MINE INFRASTRUCTURE PROJECTS

Isaac River Mine DevelopmentConcept Study

Client:- BMA Coal the largest thermal and coking coal exporter inAustralia. Mines and located in the Bowen Basin in CentralQueensland and the Hunter Valey in New South Wales.

Project- :Isaac River Mine Concept Study. The development of a $500million open cut coal mine. To be developed by 2010

GHD's Role:-The study of the infrastructure requirements to support a

6million tonne coal mine in the Isaac river mining area

six locations were studied by an extrpolation and subjective logicmethod. A capital cost estmiate to +40% was included.

A secodary part of the study was the establishment of a future worksplan for the PFS.

Phulbari - Infrastructure Feasibili tyStudy

- Asia Energy Plc

Phulbari Infrastructure feasibility study for a major coal min inBangladesh was completed for Asia Energy. Key issues weretransport and potential port facilities.

Bengalla Coal Mine

- Bengalla Mining Company

Bengalla Mine Infrastructure EPCM - Design of Access Roads & O/B

Mineconsult Saddlers CreekInfrastructure

- MIneconsult Pty Ltd

Preparation of Infrastructure concept designs and cost estimates tosupport the Saddlers Creek feasibility study


6/23

MINE SITE FACILITIES

Anvil l Hil l Mine DevelopmentCurrent

Initial stages for the proposed Anvil Hill mine in the Hunter Valley.Current commission is to provide all infrastructure services tosupport the approvals process.

Hail Creek Mine Site Facilitiesand External Works, Qld

Hail Creek Partners

Covered all works associated with mine site facilities and the opencut mine which had been planned to produce 4.5 Mtpa of coal.Works included heavy equipment and fuelling facilities, high and lowvoltage power distribution, water supply and wastewater treatment,

all roads and drainage including haul roads, administration andamenity buildings, single mens quarters and airstrip. Studyestablished all engineering requirements, layout, typical sections,reliable quantities and estimates for capital costs.

Bengalla Coal Project ($11M)1992 - 1998

EPCM Civil Infrastructure. All infrastructure services (road and railaccess, services, water management, buildings, fuel) from initialconcepts and approvals support to detailed design and constructionphase, including project management services to the BMC projectmanager.

Kidston Gold Project, Qld

Placer

GHD completed extensive investigations, testing, engineeringevaluation, design, documentation and supervision of all majorprincipal structures, including buildings, ball mill, and all processing

plants. GHD also provided design, documentation and supervisionof mine site roadworks and external main road upgrading works;drainage, aerodrome works and miscellaneous site works.

Guinea Alumina Project forBechtel

Earthworks and civil design for the alumina refinery in Guineasubcontracted to Bechtel. Detailed design of the earthworks for thepower station, precipitators and warehouse and workshop area forearly site works. Design of the 7000 person construction camp andcurrently designing the 1500 person permanent camp. Alsoundertaking port facilities design, airport design and administrationbuilding design.

Bunbury /Capel Operations WA

Westralia Sands

GHD provided consulting and design services to Westralian SandsBunbury/Capel operation for several years, in the disciplines ofwaste handling, transport and structures. The following projects aretypical:

Foundation investigations for processing plant

Investigation of membrane liner systems for effluent disposalponds

Design and documentation of haul roads to the North Boyanupmine

Design of a bridge over the Elgin drainage channel

Investigation and report on the safe disposal of low-levelradioactive waste from residential area at Capel

Intersection designs and traffic studies relating to in-plant traffic

and haul routes.

Hail Creek Mine Site FacilitiesStudy

This study established engineering requirements, layout, sections,quantities and cost, establishment and maintenance costs. Theengineering study covered all works within the mine site, includingheavy equipment and fuelling facilities, andadministration/accommodation building, amenity buildings and sitemens quarters.


7/23

ENVIRONMENTAL

Aurukun Bauxi te Project

Chalco Aluminium

Environmental, Social and Engineering Adviser for the developmentof the Aurukun Bauxite Resource and associated Alumina Refineryand Red Mud Disposal sites during prefeasibility stage of project.The project includes a planned bauxite mine at Aurukun (south ofWeipa, QLD), benefication plant, tailings and water supply dam,conveyor, port, jetty and associated infrastructure. GHD has beenworking with Chalco and Bechtel as the adviser assisting with the

Final Bid and Development Agreement to the State Government,Indigenous Land Use Agreeement negotiations and Environmental

Authority and consultation for the Mineral Development Licence.The advice has also included the Alumina Refinery, port, jetty andResidue Storage Areas either at Townsville, Bowen or Gladstone.GHD has been the principal environmental and social adviser andassociate engineering adviser to Bechtel from late 2005 to present.

Xstrata Coal NCA Coal Project

Mine Closure Planning

Xstrata Coal Pty Ltd currently operates the Collinsville andNewlands coal mines as a part of the NCA Project, whichencompasses the Newlands and Collinsville mines, and AbbotPoint, a deepwater export port dedicated solely to these mines.

All Xstrata Coal operations and projects are required to prepare aLife of Mine Document and Plan, as outlined in Xstrata standard XCBDEV_STD 1.01. Mine and closure planning is integrated intoXstrata Coals Life of Mine Plan, and this process is outlined inXstrata standard HSEC STD 3.1. Under this standard, all operationswith greater than five years to mine closure are required to preparea Conceptual Closure, Decommissioning and Rehabilitation Plan.

GHD Brisbane proposes to provide a Conceptual Mine Closure Planfor the Collinsville and Newlands coal mines. It is proposed toundertake this project on a schedule of rates basis.

Maaden Aluminium Project(Saudia Arabia):

GHD completed an Environmental Impact Assessment (EIA) toWorld Bank Standards, including all specialist studies with field workin Saudia Arabia. The project includes a greenfield bauxite mineand associated infrastructure located in northern Saudi Arabia, rail

link to an alumina refinery, aluminium smelter, 1800 MW powerstation, desalination plant and port facility located on the east coast.The field work involved specialist teams from the Brisbane officeconducting flora, fauna, soils, air and general obervation of siteswithin the coastal and offshore environment. Specialist studies wereconducted for air, noise, flora and fauna, waste, water (marine,surface and groundwater), social and economic assessments. Thisproject commenced in mid 2003 and was completed by late 2005,however further studies were conducted different dischargescenarios from the desalination plant and port layouts.


8/23

ENVIRONMENTAL

Mt Leyshon Site Remediation -Phase 1

Newmont Australia Pty Ltd

GHD Pty Ltd (GHD) was commissioned to provide consultingengineering services to assist Newmont with the remediation and ongoing surface maintenance of the now closed Mt Leyshon GoldMine, near Charters Towers, 120km in land from Townsville, NorthQueensland, Australia..

The site has been rehabilitated throughout the operating life of themine and in general is performing well. Some small portable officesare the only structures on site located off the southwest corner ofthe pit.

Current issues on the site relate to areas of rehabilitation that havenot worked and areas that have not been rehabilitated.

Priority issues that were addressed first comprised:

PHASE 1 Urgent for 2004

1. Supergene Dam Area

2. Southern Spine Drain

3. Minor scouring throughout the berm structures

Future issues are:

PHASE 2 2005 onwards (not part of this commission):

1. The scats stockpile

2. The raw water dam

3. The Mt Maw extension pond

4. Seepage from the tailings dams

5. On-going erosion repairs at benches and drain outlets

Mt Authur Coal Mine NSW

Westrac Acoustic Attenuation forCAT 789. ($0.75M) 2004

Acoustic modelling, truck solid modelling and acoustic attenuationdesign, documentation and project management to provide worldsbest acoustic attenuation for the CAT 789 haul trucks


9/23

AIRPORTS

Mount Tom Price Airport fo r RioTinto

Detailed design for the upgrade of the Mount Tom Price airport forRio Tinto Iron Ore. The airport is to be designed to be capble oflarge passenger jets like the Boeing 737.

Design of an Airport for GuineaAlumina.

Subcontract with Bechtel to provide the design of the airport for theGuinea Alumina project in Guinea.

Norfolk Island Airport Pavement

Upgrade Works- Administrator of Norfolk Island

Design, documentation and project management for the upgrade of

Norfolk Island's Airport pavements.

Griffith Airport PassengerTerminal Upgrade

Provide detailed design and project management services forupgrade of Griffith Airport Terminal.

MKO Airport - Design andDocumentation

Mt Keith Airport Upgrade - Design and Tender Documentation

Maryborough Airport Master Plan Preparation of Master Plan for Maryborough Airport, together withANEF study and detailed plan (large format / mixed use) ofMaryborough airport development precinct.

Oakey Pavement UpgradeInvestigation

GHD was engaged by the Department of Defence to undertake aninvestigation to determine the feasibility and requirements to

upgrade the aircraft pavements at Army Aviation Centre Oakey toaccommodate C130 operations. The project included ageotechnical investigation to determine the condition, structure andsubgrade for the existing pavements, assessment of the existingpavement structures under the proposed aircraft traffic anddetermination of existing PCN values as well as the requirements toupgrade for the C130 traffic. The feasibility of extending one of theexisting runways was also undertaken

CONSTRUCTION/PROJECT MANAGEMENT


10/23

CONSTRUCTION/PROJECT MANAGEMENT

GPA Stockpi le 17&18 ConstructionManagement

Provision of Superintendent Services for the construction of theStockpiles 17-18 Development at the RG Tanna Coal Terminal,Gladstone.

Services included construction supervision and contract administration.

Halifax Bay Port Facilit ies At Halifax Bay, Dallhold Nickel appointed GHD as Project Manager for

the construction of a new port facility and materials, handling system toreceive 5.0 Mtpa of ore. Works included a 5km long dredged channel, off-shore breakwater, 1.4km trestle, berth and installations for tug (2) andbarge (4x3,000 tonne) operation, 2,200 tonnes/hour barge unloader, a 5km long cable belt overland conveyor and infrastructure. Duties includeddesign, construction management, procurement, expediting, industrialrelations, safety programs, commissioning and training of operators.

POWER SUPPLY/ELECTRICAL

Belvedere Power andAccomodat ion Study

CVRD (current)

Study to assess the capacity of the Moura infrastructure toaccommodate the power requirements and 1000 worker campaccommodation requirements for the Belvedere mining project

110MW Cogeneration Plant MissionEnergy, WA

BP Kwinana

Preliminary engineering for a cogeneration plant supplying steamand electricity to the BP Refinery with the sale of excess power toSECWA. Fuelled by natural gas and refinery gas, the facility isbased on 2x37MW gas turbines, supplementary fired HRSGs anda 40MW extraction steam turbine. Optimisation and detailedcostings performed.

Pioneer Cogen Project Design and documentation of a cogeneration plant for PioneerSugar Mill.

450MW Combined Cycle Plant, WA

Compact Steel Pty Ltd

Feasibility study of a cogeneration scheme that included thedevelopment of a 3 unit 180MW combined cycle plant fuelled bysteel mill exhaust gas and natural gas, and an additional 3 x60MW combined cycle plant fuelled by natural gas for SECWAsales. Combined cycle plant capacity subsequently increased to450MW. Concept development, technical performance review,cost estimates and financial analysis.

100MW Power Station PortHedland, WA

BHP Iron Ore

Conceptual design studies, specification, and cost estimates forthe 100MW power station at Port Hedland (2x37MW combustionturbines, two HRSGs, and 1 x 35MW steam turbine).

Mt Keith Nickel Project, WA

WMC

Electrical, process control work and finite element analysis for fivegrinding mills.

Kidston Gold Mine Detailed negotiation with FNQEB regarding route and costsassociated with 319km of 132kV transmission line. Detailedpreliminary design of 132kV/22kV/6.6kV substation and for theelectrical communications and instrumentation systemsthroughout the mine site, all buildings and processing plants andthe town reticulation.


11/23

POWER SUPPLY/ELECTRICAL

Peko Mines, Tennant Creek,Northern Territory

Design of 33kV/3.3kV/415/240 volt transmission and reticulationsystem providing power to four mines in the Tennant Creek area.

ROADS

Macarthur River Mine Haul Road This 110km two lane roadway carries the largest road trains inAustralia from the mine to the port in the Gulf of Carpentaria.Extensive sections of the pavement suffered premature distressprior to and immediately after opening. GHD carried out forensicinvestigations into the causes of the failure including commissioningMain Roads to perform deflectograph testing and triaxialcharacterisation of material properties. A detailed assessment wasmade of material properties and their performance under load withGHD designing the remedial works and proposing an ongoingmonitoring program.

Yarrabee Mine Coal Haul Road

Mines Administration Pty Ltd

Design, contact documentation and construction supervision of36km coal haul road, rail loop and coal loading facility, including1000 tph conveyor and rail loading bin for 300,000 tonnes perannum coal project near Blackwater. Design and projectmanagement of a further 5km of roadworks, railway balloon loop

and civil works for coal loader.

Goro Nickel Mine

New Caledonia

GHD undertook investigation and design for this nickel miningproject, including haul road design, pavement design, structurefoundations, water supply and tailings dams, wharf and watermanagement.

Gag Island Nickel Mine

Indonesia

GHD undertook investigations and design for the haul road design,foundation structures, township development, water supply andtailings dams, wharf, water management and an airfield.


12/23

MINING TOWN & INFRASTRUCTURE PLANNING

Busselton Compensating BasinCB3 - Design

Detailed design and preparation of tender documents forCompensating Basin CB3 and the upgrade of the Sabina DiversionDrain as part of the Busselton Flood Protection Project. CB3 willcomprise a 4km long embankment, with a maximum height of about6m. The basin will have a storgae capacity of 2GL.

Wenlock Scoping Study

(1/3/07 current)

Create a scoping study for Cape Alumina Ltd, a wholy-owned

subsiduary of Metallica Ltd. The study is for the design anddevelopment of a 5Mtpa Bauxite mine at Wenlock, near Weipa onCape York.

Gag Island

Indonesia

GHD in association with a local consultant undertook a detailedfeasibility study for the town and town infrastructure for a mine,beneficiation plant and port facilities project involving 950 houses,sewerage, water supply, roads, power, communication facilities,airport, commercial, educational, recreation and religiousinfrastructure for a remote island in East Indonesia.

Nebo Coal Project,

Thiess Peabody Mitsui

A study of the town infrastructure of Moranbah and Nebo for afeasibility study and an Environmental Impact Study of the NeboCoal Project. The study involved housing for 2,600 people at

Moranbah and 1,700 people at Nebo.

Lihir Goldmine Project

Kennecott Explorations (Aust) Ltd

GHD prepared a detailed feasibility study of communicationnetworks for a major goldmine on Lihir Island, a small island north ofRabaul. It included 24 channel microwave bearer links to the islandand a public network exchange. Private communication facilitiesincluded PABXs at the mine site, accommodation complex andoffice together with short-range microwave links. Satellite links forvoice and data were both provided to the USA and Port Moresby. Alocal radio and television re-broadcast facility was proposed. Inorder to handle voice and data communications to mobile miningand maintenance staff a land-mobile network was proposed thatwould be integrated with the PSTN.

Comalco Alumina ProjectComalco Alumina Ltd

GHD prepared a concept Master Plan for $1B of State infrastructureassociated with a $4B proposed alumina refinery. The masterplanning included an overall assessment of requirements for andcosts associated with a 15,000 person township.


13/23

WATER SUPPLY & MANAGEMENT

BHPB Olympic Dam PrimaryWater Supply Study

(13/12/06 current)

Pre-Feasibility Study of Primary Water Supply for BHP BillitonOlympic Dam Mine. Project is for a 154 to 192MLD DesalinationPlant at Port Bonython, Whyalla, South Australia, 320km pipelineapprox 1.4m diameter with 2 to 3 Six Megawatt Pumpstations and a1000ML storage facility at Roxby Downs township. Currentestimated capital works cost is $700M plus. Study is beingundertaken with Parsons Brinkerhoff as primary subconsultants and

Currie & Brown as QS subconsultants. Deliverables include approx180 drawings, a pre-feasibility report and a cost etsimate toplus/minus 25%.

Kalgoorlie Consolidated GoldMines

GHD was commissioned to investigate the cost of harvestingbrackish water that has assimilated on Hannans Lake, near theKCGM borefields, after the 1995 cyclone Bobby. GHD alsoinvestigated an alternative consisting of a dam on a watercoursedraining to the lake.

Ross River Dam SpillwayEnhancements

Provision of consultancy services (PM, Design and CPS) for Stage 1lowering of spillway for Ross River Dam in Townsville for NQ Water.

GHD undertook preliminary risk assessment of the benefits oflowering the dam spillway. We undertook design and tendering. Weare also engaged to provide CPS for the $2.5M spillway lowering(3.55m).

The project involves the removal of over 2,700T of mass concretefrom an operational dam spillway in a manner that does not induceany stress onto the structure to remain. The contractor involved isalso using diamond wire cutting and hydraulic splitting in conjunctionwith coring and Bristar to split the concrete blocks into manageableblocks.

This is the first stage of an overall upgrade to the Ross River Damexpected to cost $100M.

Fitzroy River Study, Yaamba OilShale Project, Qld

Peabody Aust ralia Pty Ltd

Numerous studies undertaken to provide detailed design of riverdiversion using mathematical computer modelling and possiblyphysical modelling of a section of the Fitzroy River. As the oil shaleunderlies the Fitzroy River and its flood plain river diversion andflood protection were a task as open cut operations had to beprotected against extreme floods. Studies included:

Pre-feasibility study which investigated the requirements forroad, rail and river diversion and mine flood protection

An analysis of infrastructure requirements, product pipeline andalternative port facilities was included

Analysis of the Fitzroy River and its diversion using computermodelling techniques.

Worsley Alumina Refinery This complex system, with lakes, diversion channels, runoff from theplant area and from red mud areas, and cooling loads was modelledto allow an increase in capacity to be evaluated. The simulationwork showed that an increase would result in a rise in a critical lakecontaining process water. A further commission has been received,to evaluate options available to reduce the rise in the lake levels


14/23

DAMS

Mt Keith Nickel Dam

WMC

Investigation and design of 18m high earthfill embankment, 4kmlength, for use with a 7 riser central thickened discharge tailingssystem.

Ross River Dam Upgrade - Stages2 to 5

Design and construction management of Ross River Dam UpgradeStages 2 to 5

Olympic Dam

WMC

Geotechnical evaluation of foundations and embankmentconstruction materials of karsitic soils.

Argyle Tails and Water SupplyDams

Argyle Diamond Mines

Investigation, design and construction supervision of ten dams inearthquake zone, including 30m rockfill embankment, 60m gravelembankment and a 36m earthfill embankment. Total volume ofearthworks for dams exceeds 20 million cubic metres.

Fimiston 2 Dam

Kalgoorlie Consolidated GoldMines

Investigation, design and construction supervision of a 28m earthfillembankment.

Cadjebut No.2 Dam

BHP Minerals

Geotechnical evaluation of foundations, investigations and design ofa 24m high earthfill embankment.

Calliope Nickel

New Caledonia

Site selection for tailings dams up to 50m high for proposed nickelprocessing plant.

Gag Island Nickel Mine, Indonesia Investigation and design of a nickel mining development on GagIsland, including a 15m earthfill water supply dam.

Worsley Alumina Project WA Investigation, design and supervision of refinery catchment lake, a24m high earthfill dam on 10 to 40m deep compressible foundationsincluding chemical grouting.

33m high, 287m long earthfill water supply dam

Three pipehead dams 20m high with chemical grouting

Six tailings dams up to 70m high and totalling 8km length.


15/23

TAILINGS MANAGEMENT

Worsley Refinery, WA

Worsley Alumina Pty Ltd, RedMud Disposal

Development of a new system of tailings disposal following a worldstudy tour. This led to Australia and USA patents.

Upstream tailings dam construction to 40 metres height.

Rehabilitation of tailings:

Construction of three tailings dams.

Tailings pipelines and decant systems.

Water Storage:

Refinery catchment lake dam, 30 metres high with chemicalgrouting to isolate caustic water from the head waters of a freshriver.

Fresh water lake dam, 32 metres high, with associated spillway.

Chemical Disposal:

Solar evaporation ponds (2), double liner of clay and plasticmembrane.

Pipehead dam to intercept any seepage from above storages.

Pump Systems:

Three pump stations including one mounted on an articulatedbarge. Associated pipelines.

Redirection of runoff with 5km of freshwater channels and otherdrainage structures.

Water management modelling for surplus water.

Seepage control and monitoring.

Boddington Gold Mine WA

Worsley Alumina JV

Design of the raising of an existing tailings dam, involving upstreamand downstream raising techniques, foundation and borrow pitinvestigation, geology, analysis of stability, seepage, drainage,storm control, filters and erosion protection. Particular emphasis ondifferential settlement of old/new components of the dam. In additionupdated five year plan for residue tailings disposal as well asundertook surveillance and performance assessments of two dams.

Investigation and design of extensions to tailings pipelines andpumping systems including field and laboratory testing, scale up ofslurry rheology and design of pipeline prototype.

QAL Dam 2 Stage 6 Raising Review of existing design for final downstream raise of the Red MudDam No. 2 at QAL, Gladstone; update of design to take account ofexisting conditions and proposed future raising by upstream raising;preparation of construction drawings, specifications and schedules;preparation of definitive design report and cost estimate.


16/23

TAILINGS MANAGEMENT

CAR Residue Area - OverallManagement

CAR Residue Area - Overall Management of Services

Boddington Gold Mine WA

Worsley Alumina JV

EPCM contract valued at $13M for Residue Project. Integrated totaldesign of dams, slurry systems, pumps, roads etc, together withoverall management responsibilities.

Goro Nickel Mine NewCaledonia

Greenvale Nickel JV

Design, construction and operation over a four month 24 hour/daytest program of a major pilot plant. Preparation of ore slurries and11km long slurry pipeline, storage agitation thickening and pumpingat various moisture contents as part of a major mining feasibilitystudy.

Savage River Mines Tasmania

Tailings Dam, Savage Resources

Design and construction advice for 65m high earth and rockfill MainCreek Tailings Dam for valley containment of tailings. Designed tomaximise use of the mine waste in order to minimise costs andenable the dam to be built as an extension of the mining process.Dam also used as main mine haul road.

Mt Keith Centralised TailingsStorage

WMC Projects & Engineering

Significant increases in production at the Mt Keith Nickel Mine inWAs eastern goldfields near the town of Leinster meant that a newtailings system was required. Development of the unique systemtook considerable time spent in research, in-situ testing and process

development. The adopted solution includes nine discharge towersup to 45 metres high spread across the storage, creating adeposition pattern similar to nine interconnected volcanoes.Selection of this scheme from numerous options was verified duringa nine month study including pilot scale testing of tailing thickeners,discharge towers and scaled down beaches. Over a five monthperiod, GHD designed:

three pump stations;

20 kilometres of piping;

instrumentation and controls;

18 kilometres of embankments;

internal causeways that lead to the towers; and 14 kilometres of drains.


17/23

GEOTECHNICAL ENGINEERING

Goro Nickel Mine, NewCaledonia/Gas Island Nickel Mine

Indonesia

GHD was responsible for the management and execution ofgeotechnical investigations and the design for two project options inNew Caledonia and Indonesia for Queensland Nickel Pty Ltd. Thework involved an extensive programme of drilling (on-shore and off-shore), seismic traversing, test pitting, trial slopes (both mine andspoil pile) and construction of a trial mine pit to a maximum depth of50m (Goro) and open cut operations to 30m depth (Gag Island).

The basic geotechnical problems addressed were:

Pit Slope Stability

Spoil Pile Stability

Hydrogeology

Trafficability

Haul Road Design

Bulking of Material

Structure Foundations

Water Supply, Tailings And Sedimentation Dams

Slurry Dewatering

Wharf

Stability of Ore During Shipment

Project Overall Water Management

Kidston Gold Mine Qld GHD was responsible for part of the geotechnical design of thisproject located in North Queensland. The basis geotechnicalproblems addressed were:

Hydro-geology, including pit de-watering

Tailings Disposal Water Supply

Structure Foundations

Haul Roads

Overall water management integrating groundwater, pitdewatering, plant runoff and tailings management

Hannans South Project WA GHD carried out all geotechnical work for this project that is locatedsouth of Kalgoorlie in WA. The basic geotechnical problemsaddressed were:

Stability of pit slopes up to 60m high

Spoil pile stability

Foundation design

Mine dewatering

Flood diversion

Overall project water management


18/23

GEOTECHNICAL ENGINEERING

Worsley Alumina Project, - WA GHD was responsible for all geotechnical work on the WorsleyAlumina Plant, south of Perth, and retain an ongoing responsibilityfor tailings management. Basis geotechnical problems include:

Hydrogeology and effect of plant seepage on groundwater

Cut and fill for plant site

Plant foundations

Water supply

Tailings (red mud) disposal

Overall water management

Ali ce Springs to Darw in Railway,Ballast Source Investigation

The aim of investigation was to identify, investigate and provesufficient ballast quarry sites (minimum 6) within economic hauldistance of the proposed railway corridor, for the production of 2.4million cubic metres of ballast. The investigation involved:

Desk top study

Helicopter and vehicle reconnaissance

Approval to conduct field investigation from relevant authorities Engineering geological mapping

Geophysical survey

Trial excavations

Drilling


19/23

MATERIALS BULK HANDLING

CQPA Stockpi les 19, 20 & 21Detail Design & Doc.

GHD was commissioned to expand the current coal stockpilingcapacity of CQPA's RG Tanna Coal terminal with the addition ofStockpiles 19, 20 & 21. The works included the addition of twooverhead stockpile conveyors, moveable tripper, three reclaimcomveyors and tunnels, three transfer towers depositing coal ontothe existing ship-loading conveyors, and ancilliary items such aslight towers and a dozer refuelling station, stockpile drainage and

settling ponds as well as ground remediation work to overcome poorground quality.

The project has an estimated total approximate value of $130 millionand GHD's fees will be in the region of $3.5 million. In completingthis project, Job manager for the works, Simon Frost, called uponthe recent experience gained by GHD's Brisbane office, whichincluded upgrades to CQPA's Stockpiles 15 through to 18 and theaddition of a third rail dump station as well as many other similarmaterial handling projects.

Crinum East Ramp ConveyingSystem

Carry out preliminary design for the in-pit ramp conveying system

BMA Crinum East OverlandTransport Options

Carry out a Coal Haulage Transport Study from the top of theCrinum East Ramp to the Gregory Plant and its top size reduction tominus fifty millimeters (-50 mm).

PT Adaro Overland Conveyor -Concept Development

Concept Development for 66km PT Ardaro Overland Conveyor anddump station.

Macquarie Generation ConveyorUpgrades ($0.3 M) 2000 - 2003

Assessment, redesign and capacity upgrade of a number of coalfeed conveyors for the Bayswater Power Station, ranging from 2000tph to 3300 tph.

GPA Stockpile 17&18Construction Management

Provision of Superintendent Services for the construction of theStockpiles 17-18 Development at the RG Tanna Coal Terminal,Gladstone.

Services included construction supervision and contractadministration.

Liddell ROM Plant ($1.2 M) EPCM for the project. Initial design concepts, design,documentation and construction phase services for a 1200 tph ROMplant with primary, secondary and tertiary crushing and screeningand feed to CPP


20/23

MATERIALS BULK HANDLING

Kooragang Island Coal TerminalUpgrade

PCWS

GHD was responsible for the initial studies and concept designworks and subsequently appointed as construction manager for the$100M expansion upgrade of the Kooragang Island Coal loader inNewcastle, NSW. The project involved:

Extension of the present loading berth by 315 metres to permittwo vessels to be berthed simultaneously

Dredging work to provide access to the berth and to utilise thedredged sand as landfill for additional onshore stockpiles

Extension of the stockyard conveyors and runways for stackersand reclaimers including duplication of the reclaim belt

The current expansion increased the arrival throughput capacity by7Mt/a to 25 Mt/a.

Port of Brisbane

Queensland

Preliminary design and costing of a high capacity 30 Mtpa coalexport terminal. Loading facilities cater for vessel sizes up to170,000 dwt and included trans-shipment of coal from barge tostockpile. Three million tonnes storage was provided with a flexiblestacking reclaim system to cater for a variety of coals.

Aurukun Alumina Project Feasibility study of materials handling facilities for Shell Minerals fora proposed bauxite mine at Aurukun Project, involved design ofbauxite beneficiation plant, 40km overland conveyor system andport terminal.

Telfer Input OverburdenCrushing and Conveying

Western Australia

Feasibility design and capital and operating cost estimates for a newoverburden input crushing and conveying system at BHPs TelferLine Store Mine, WA.

Marandoo Tom Price OverlandConveyor

A feasibility study for a 35km overland conveyor as an alternative torail haulage of iron ore.


21/23

RAIL

Northern Bowen Basin Rail LinkConstruction Phase

Provide design support, design intent verification and assistancein the resolution of non-conformances through a site based teamsupported by technical staff based in Brisbane and through staffvisiting site, for the construction phase of the Northern BowenBasin Rail Link.

Minerva Rail Loop Prelim DesignCompletion

GHD were commissioned to complete the preliminary design ofthe rail balloon loop to the Minerva Mine.

Wambo Rail Spur and Loop ($0.6)Current

Design and documentation for the proposed Wambo Rail Spurand Loop from Mount Thorley to Wambo Mine. All track,signalling and comms, civil works and structures designed anddocumented.

Macquarie Generation RailUnloader. ($1.6 M)

Initial concepts to construction support for a 2500 tph rail unloaderfor Macquarie Generation. All road, rail, mechanical, structural,electrical and environmental engineering services provided

Yarrabee Coal Project, Qld Detailed engineering design and construction supervision ofrailway balloon loop, 40km haul road and coal loading facility forthe Yarrabee Coal project. The inclined coal loading conveyor tothe load out bin passes over the Capricorn Highway, the CentralRailway Line and a railway passing loop. This saved the cost of agrade separation structure at the Capricorn Highway. The loadingconveyor is fully enclosed to prevent spillage onto the road or therailway.

Gregory Mine Railway Design of specific aspects for the 68km Gregory Railway spurwhich links the BHP open-cut coal mine at Gregory to the maincentral line near Blackwater. Project included hydrology, design ofdrainage structure, trackwork quantities, and compilation of allspecifications and documentation for the calling of tenders. TheMackenzie River Bridge a prestressed structure 440m long,formed part of the design.

Curragh Railway Project As Project Managers responsible for programming, planning,

establishment of control procedures, administration andaccounting, survey, design and supervision of construction ofrailway works associated with the Curragh Coal MineDevelopment in Central Queensland. Project included at 14kmbranch railway and loading loop to serve the mine, 40km of trackduplication work, housing, locomotive and wagon servicingfacilities, rolling stock and central track control facilities.


22/23

PORTS

CQPA Stockpi les 19, 20 & 21 DetailDesign & Doc.

GHD was commissioned to expand the current coal stockpilingcapacity of CQPA's RG Tanna Coal terminal with the addition ofStockpiles 19, 20 & 21. The works included the addition of twooverhead stockpile conveyors, moveable tripper, three reclaimcomveyors and tunnels, three transfer towers depositing coal ontothe existing ship-loading conveyors, and ancilliary i tems such aslight towers and a dozer refuelling station, stockpile drainage and

settling ponds as well as ground remediation work to overcomepoor ground quality.

The project has an estimated total approximate value of $130million and GHD's fees will be in the region of $3.5 million. Incompleting this project, Job manager for the works, Simon Frost,called upon the recent experience gained by GHD's Brisbaneoffice, which included upgrades to CQPA's Stockpiles 15 throughto 18 and the addition of a third rail dump station as well as manyother similar material handling projects.

Gladstone Port Facilties fo r CAR1Alumina Refinery

GHD designed the bauxite receival facilities and alumina exportfacilities for the CAR 1 project. Now designing the expansion forthe second stage of this project.

POL - Container Terminal Stage 1 Design and documentation of the Stage 1 of the future containerterminal.

SPC - Port Botany COI Independent review of options for expanding the container port atPort Botany and assessment of how the preferred option mayaffect environmemtal impacts outlined in the EIS on publicexhibition. Work may involve presentations to a State GovtCommission of Inquiry


23/23

PORTS

Coal Import Port TrincomaleePower Station

Sri Lanka, Asian DevelopmentBank, Ceylon Electricit y Board

In association with Black & Veatch, MacKnight were appointed tocarry out a feasibility study for a marine coal unloading terminal atTrincomalee. The project, undertaken in association withconsultants who examined options for the power station itself andstockyard, entailed the examination of six alternative berth sites,defining shipping, small craft facilities, and alternative dredgingoptions. Wind and wave conditions in the approaches to thealternative berth sites were evaluated. An extensive analysis ofexisting oceanographic measurements was carried out, in order tosynthesise the complex wave climate at the sites. Once theoptimum berth sites were determined, they were evaluated withalternative on-shore power station sites to determine the mostattractive overall scheme. Complete designs were carried out at afinal selected site.

Yabulu Nickel Port, Qld

Queensland Nickel

Detailed maritime transportation study for ore carriers and shallowdraft barges. Materials handling assessment. Oceanographic datacollection, off-shore site investigations. Wave climate, dredgedapproach and vessel navigation modelled. Design of trestle1,350m long, wharf, berthing and unloading facilities. Design ofmoorings for barges during cyclones. Design of pusher/barge

systems. Value $100M.

Port Hedland, WA Simulation modelling was undertaken for a new user wishing toexport up to 50 Mt/a in addition to the 40 Mt/a exports by the thencurrent users of this major iron ore export in the Pilbara region ofWestern Australia. The objectives of the modelling were toestablish the necessary level of new facilities for the new user inthe context of the existing traffic and to determine the interaction, ifany, of the new users fleet with those of the existing users.

A major task of the modelling was to ensure that priorities wereproperly represented for vessels entering and leaving the port. Amajor navigational constraint with the existing channel was thelimitation to three of the number of vessels leaving on a high tide.

At the levels of throughput modelled the number of tugs and theirutilisation were significant.

Overall the results showed that the total throughputs could behandled and that delays were essentially a function of the capacityof the individual users installed facilities although fleet interactionoccurred at higher throughputs.

Contact:

201 Charlotte Street

Brisbane QLD 4000

GPO Box 668

Brisbane QLD 4001

P61 7 3316 3000

F61 7 3316 3333

[email protected]

www.ghd.com.au

infrastructure for the mining industry

Documents