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Ground engineering


2/8Aurecon Ground engineering2

Ground engineering is a fundamentalcomponent of all civil engineering projects,forming the backbone of projects invarious industries ranging from transportto mining, buildings, energy, water andconstruction. For any project to besuccessful, ground risk needs to beadequately dened and appropriate

strategies developed to manage risks.

Aurecon works with clients around theglobe to deliver innovative and reliableground engineering solutions that formthe foundation for successful projects.Through this diverse experience, we havebecome market leaders in geotechnicalinvestigations, foundation design,hydrogeological studies, numericalmodelling, soft ground and hard rocktunnels, tunnel linings, groundimprovement, cut and cover structures,micro tunnelling, lateral support andretaining systems.

The strength of our ground engineeringcapability is our people. Ourmultidisciplinary teams are handpickedfor each project, integrating theirexpertise across geotechnical, geological,hydrogeological, materials and pavement,tunnelling and civil engineering disciplines.

Accountability is central to our clientpromise. Aurecon integrates and alignsour specialised teams with our clientsexpectations to deliver best practice forproject outcomes across safety, risk,quality, budget and schedule.

Ground engineering carries inherentsafety risks across all project stages,

ranging from eld investigation throughto the development of safe designs toconstruction and temporary works. We donot compromise on Health & Safety at anyproject stage. It comes rst in everything

we do and is core to how we conduct ourbusiness at Aurecon. We foster this byappointing experienced teams and utilisingour in-house Health & Safety specialistswho combine a deep understanding of themanagement of Health & Safety with thatof our clients.

The unique blend of our technical expertiseand broad industry experience allows ourteams to work closely with our clients,developing open, knowledge sharingrelationships with them. From our work onhydropower projects in Laos, to nationaltransport links in South Africa and majorexport terminals in Australia, our groundengineering teams offer localisedknowledge of the 80 plus countries inwhich we have worked.

Ground engineering relates to the provision ofcompletesolutions for ground related infrastructure, rangingfrom ground investigation through to laboratory testing,design of underground infrastructure and provision ofspecialist construction supervision.

Moatize Coal Project Mozambique


3/83Aurecon Ground engineeringPeninsula Link Australia

Melbourne Metro Station Australia

Pipe Jacking

EastLink Australia Jilalan Rail Yard Upgrade Australia



Feasibility studies:early involvementof ground engineering specialists oftenprovides signicant cost savings

Preliminary design reports:optionsdevelopment and preliminary designs ofground engineering solutions

Geotechnical investigation,

interpretation and reporting:expertiseranging from developing scopingdocuments to laboratory testingprogrammes, interpreting data andpreparing interpretive and baseline reports

Hydrogeological studies:investigatingand interpreting hydrogeological data forprojects such as tunnels, railway stations,deep road and rail cuttings, coastal and portfacilities and deep basement excavations

Specialist Geology:detailed assessmentsof the inherent risk of sinkhole formationand settlement in karstic formations and

the design of suitable ground engineeringsolutions in highly variable groundconditions

Earthworks designs:designs andspecications for bulk earthworks,

embankments and cut slopes both in soiland rock

Laboratory testing:provision ofmaterials and geotechnical laboratoryservices materials and earthworks processquality control

Materials sourcing and development

planning:earthworks and pavementmaterials can often present a signicant cost

to infrastructure development. Sourcing,optimising and planning effective materialsmanagement strategies is essential

Tunnel design and specications:detailed design for hard rock and softground tunnels using the most suitabletunnelling methods

Immersed tube and jacked box tunnel

design:complex and specialisedtunnelling solutions and pipe jacking

Tunnel waterproong and secondarylining design:designing and detailinglining systems for all tunnellingenvironments and construction methods

Design of excavation support and

retaining systems:extensive experiencein the design of conventional retainingsystems through to more complex systemssupported by best practice numericalmodelling of excavation behaviour

Ground improvement design:signicant

experience in the design and performanceassessment of most ground improvement

techniques, from wick drains andsurcharging to dynamic replacement anddeep soil mixing

Slope assessment and risk mitigation:exceptional geotechnical services acrossall aspects of investigating and assessingslopes and designing solutions to mitigateslope risks

Seismic and liquefaction assessments:

risk assessments and ground engineeringdesign skills have been developed byteams at the forefront of their eld in

some of the most seismically active areas

of the world

Multidisciplinary expertise

Aurecon offers broad, multidisciplinary expertiseacross all stages of project delivery, ranging from

conceptual phases to specialist supervision forconstruction of major projects.

Ground movement prediction:assessment of ground movementsand potential impacts on buildings andstructures induced by ground engineeringconstruction works or the naturalenvironment

Foundation design: foundation solutionsfor both land and near-shore projects,

across pad footings, rafts, piled rafts, pilesand caissons, and more

Instrumentation planning and

implementation:critical to allcost-effective and innovative groundengineering solutions

Numerical modelling:using nite

elements, nite difference or distinct

element modelling in 2D and 3D

Pavement investigations and designs:

exible, rigid, ultra-thin and gravel

pavement designs for all types of

infrastructure and trafc requirements

Haul road design:understanding ourclients commercial, maintenance andwhole of life cost drives is critical tocost-effective haul road designs

Specialist construction supervision:managing clients ground engineeringrisks from planning stages through toconstruction, with teams experiencedin construction support for tunnelling,subgrades, earthworks, deep excavations,coffer dams and foundations


5/85Aurecon Ground engineeringSt Regis Saadiyat Resort dynamic compaction United Arab Emirates



Post earthquake reconstruction services

New ZealandClient Christchurch Earthquake RecoveryAuthority (CERA)

Having assisted in the crisis response efforts

immediately following the earthquake in

February 2011, Aurecon is closely involved

in several initiatives to rebuild Christchurch.

The aim of all reconstruction efforts is very

much about the people as well as the built

environment, allowing for the creation of

places and infrastructure that help rebuild

the resilience of the community. The

Canterbury Earthquake Recovery Authority

(CERA) is a new government department

overseeing the rebuild of Canterbury.

Aurecon staff is seconded to CERA in key

advisory roles.

An Aurecon ground engineering team is

part of the Stronger Christchurch

Infrastructure Rebuild Team (SCIRT), tasked

with the rebuild of infrastructure such

as roads, pipes, sewerage and retaining

walls. Aurecon teams are also providing

vital reconstruction services for ongoing

demolition and geotechnical work, and

developing options for energy, light rail and

land development opportunities includingproject management, urban design,

geographic information systems, water and

civil engineering, planning, spatial surveying,

ground engineering and legal surveying.

The Gautrain Rapid Rail Link

South AfricaClient Gauteng Provincial Government

Consortium Bombela Construction JV

The Gautrain Rapid Rail Link is a state ofthe art dedicated rapid rail line betweenJohannesburg, Pretoria and OR TamboInternational Airport, a fast growing regionwith increasing pressure on existingtransportation infrastructure.

A major engineering challenge of theproject was posed by the groundconditions, where the route traverses an

area of dolomite rock formations notoriousfor sink holes. Aurecons ground engineers,working closely with our client, developed apylon footing and ground improvementprocess that would limit the occurrence ofsinkholes in close proximity to foundations.This philosophy of applying rational designand risk assessment to overcomepreviously undevelopable dolomitic areasis now being incorporated into SouthAfricas national standards for constructionon dolomite ground.

Moatize Coal Project

MozambiqueClientVale

Aurecon developed the detail design forthe railway line, connecting the newlydeveloped Moatize Mine with theproposed Nacala-a-Velha Port. Thecomplex project entails the design offoundations for 62 bridges, slope stabilitydesigns for 300 deep cuts, 338 high lls

and identifying 67 borrow pits along theroute. To inform the design, more than7 000 metres of core drilling wasconducted, 2 600 test pits excavated,50 ReMi tests done, 14 000 metres ofseismic refraction completed and in excessof 14 000 laboratory tests undertaken.

Apart from the logistical challenge ofworking on a 925 kilometre long site,before the start of ground investigations,24.4 million square meters of land had tobe demined of explosives from the recentcivil war.

The Nacala Corridor Project showcasesAurecons ability to conduct innovativeground engineering design in complexsituations and amid signicant logistical

challenges, without compromising safety,quality, budget and the programme.

Global success stories

Our expertise and industry knowledge have beenbuilt on projects around the globe, allowing our

teams to develop detailed localised knowledgeof the 80 plus countries in which we have worked.


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Joint winner

Australian Bulk Handling Awards 2010Bulk Handling Facility of the Year(Resources and Infrastructure)

Newcastle Coal Export TerminalProject Stage 1 (above image)

AustraliaClient Newcastle Infrastructure Group

Aurecon, in joint venture with Hatch,provided full EPCM services for this Phase 1development, which has been specically

designed for staged expansion from30 million tonnes per annum (Mtpa) to

66 Mtpa, with further expansions possible.The USD 1 billion project was delivered sixweeks ahead of schedule and within budget.

The site posed many geotechnical challenges

stemming back to the historical formation of

Kooragang Island from a number of smallerislands in the Hunter River estuary.The site was also used as a contaminatedwaste dumping ground from 1960 to 1990.These issues posed complex managementchallenges including ensuring new worksdid not contaminate the ground water andlimiting the impacts of settlement associated

with major structures, coal stockpiles andlarge mobile machinery. Consequently,considerable ground improvement had tobe designed and implemented prior toconstruction, techniques includingsurcharging, dynamic replacement anddeep soil mixing were designed to limit post

construction settlements to tolerable levels.

Winner

Infrastructure Partnerships AustraliaNational Infrastructure Awards 2011

Category: Project of the Year

Gateway Upgrade Project

AustraliaClient Department of Main Roads

The Gateway Upgrade Project involved therefurbishment of the existing bridge andthe construction of a second, including adedicated pedestrian and cycleway, therst of its kind in the world. The project

included 12 kilometres of widening of

existing dual carriageway and sevenkilometres of a new six lane carriagewayacross derelict and swampy ood plains.

The contractors, Leighton Abigroup JointVenture (LAJV) produced design packagesfor all elements of the project, which hadto be both internally and externallyveried. Aurecon assisted the Department

of Main Roads in the external designverication process.

The range of loading and ground conditionsmeant that a variety of solutions wereneeded to achieve the required

performance criteria. Aurecons review ofthe design demanded a wide range oftechnical uency of design process.


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Contact us

Eduard Vorster

Ground Engineering LeaderT+27 12 526 5724E [email protected]

Charlie Shackell

Service Leader, GeotechnicalT +61 2 9465 5638E [email protected]

Johan Calitz

Service Leader, PavementsT +27 12 427 2634Ejohan.cal [email protected]

Anthony Bennett

Service Leader, TunnellingT +61 3 9975 3337E [email protected]

About Aurecon

Aurecon provides engineering, management andspecialist technical services for public and privatesector clients globally. The group, with an ofce

network extending across 25 countries, has beeninvolved in projects in over 80 countries across

Africa, the Americas, Asia Pacic and the Middle

East and employs around 7 500 people throughout11 industry groups. We seek to foster humanachievement in all aspects of our work.

Aurecon ofces are located in:

Angola, Australia, Botswana, China, Ethiopia,Ghana, Hong Kong, Indonesia, Lesotho, Libya,Malawi, Mozambique, Namibia, New Zealand,Nigeria, Philippines, Qatar, Singapore,South Africa, Swaziland, Tanzania, Thailand,Uganda, United Arab Emirates, Vietnam.

For more information please visitwww.aurecongroup.com

Aurecon South Africa (Pty) Ltd is a certied

Level 3 BBBEE contributor.

The Aurecon Group is made up of a number ofseparate legal entities operating across diverse

jurisdictions. Not all those entities provideservices to clients.

2013 Aurecon

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