Mining and Resources

Civil

Quantum’s civil team has a strong history delivering civil infrastructure across Western Australia’s mining regions, with in-depth local knowledge of the Pilbara, Goldfields and South West.

Earthworks

Our earthworks team works closely with geotechnical engineers to get the best outcome from material already available on site — balancing cost, program and ground conditions rather than defaulting to imported material or an over-specified surface finish. That means understanding what a borrow pit or in-situ material can actually support, and designing the earthworks program around it.

• Bulk earthworks for early works, mining infrastructure and ROM pads
• Detailed earthworks for buildings and process infrastructure
• Borrow pit assessment and design
• Stockyards, laydown areas and heavy mining equipment facilities

Roads, Haul Roads and Rail

Mine-site roads and haul networks aren’t built to council standards — they’re built to production and equipment requirements, often to internal client specifications rather than MRWA. We design for the vehicles that will actually use them, from light vehicles to autonomous haul fleets.

• Unsealed roads — heavy haul, access roads and tracks
• Access roads and tracks for mining fleets
• Heavy haul rail, rail crossings, rail access roads, rail loops and sidings
• Route planning and optioneering through to detailed design and approvals

Temporary Works

• Construction staging
• Crane pads
• Temporary access roads

Airfields

• Airstrip and RFDS airstrip design

Surface Water and Drainage

Managing surface water on a mine site means understanding how water moves across a footprint that’s constantly changing as the pit and waste landforms develop. We build hydraulic and hydrology models to assess flood risk and inform surface water management plans, then translate that into drainage design on the ground — culverts, open drains and floodways, detention and retention basins, sedimentation controls, and underground pit and pipe networks — so water is managed safely without disrupting production. We also support dewatering and site water balance work as part of the broader water picture.

Utility Design

We design the underground services that support mine site operations — water, sewer and drainage reticulation, and electrical and communications conduits and pits — coordinated with the wider civil design so trenching, clearances and service corridors are resolved before construction starts, rather than clashing with earthworks or roads once work is underway.

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Non-Process Infrastructure

Non-process infrastructure — the supporting facilities a mine site needs to operate day to day — is design work specific to the mining sector, from concept through to construction support and commissioning:

• Accommodation villages
• Airstrips and RFDS facilities
• Site offices
• Crib room and pre-start facilities
• HME and light vehicle maintenance facilities
• HME park-up for automated and traditional fleets
• Laydown facilities
• Light vehicle car parks
• Dewatering and water supply pipelines
• Access roads, haulage roads and automated haulage roads
• Detention and retention basins

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Workshop and Maintenance Facilities

We design heavy vehicle and light vehicle workshop and maintenance facilities on live, operating mine sites — multidisciplinary packages spanning civil, structural, architectural, hydraulics and plumbing, compressed air, electrical and communications, delivered to fast-tracked programmes and tied into existing site infrastructure without disrupting operations.

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Pilot Plants

We design pilot plants ranging from lab-scale rigs through to full-sized equipment, giving clients a way to validate process methods and test ore bodies before committing to a full plant investment.

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Structural, Mechanical and Piping

Most of our structural, mechanical and piping work happens on live, operating mine sites — extending, modifying or replacing plant infrastructure while production continues around it. That brownfield context shapes how we work: understanding what’s already there before we design what’s next, tying new structure and equipment into existing infrastructure without disrupting operations, and managing the access, isolation and safety constraints that come with working around live plant. We apply the same discipline on new-build (greenfield) work, where the challenge shifts from tying into the existing site to getting the sequencing and interfaces right from a clean start.

Mechanical

Our mechanical scope centres on the equipment that moves and stores material through a plant — conveyors, transfer points and headchutes, and bins and hoppers — including structural support, chute geometry and wear management, and the tie-in points back into existing structure and process flow on a brownfield site.

Bore Headworks

• Fixed in place and trailer-mounted headworks
• Raw water supply and pit dewatering

Pump Stations, Tanks and Turkeys Nests

• Fire protection, raw water and potable water storage tank design
• Tank and pump foundation concrete design
• Water supply for dust suppression, including standpipes

Water Treatment and Filtration Systems

• Potable water systems — containerised and in situ
• Oily water treatment and recycling systems for vehicle wash bays and workshops
• Concrete and steel structures

Pipeline Infrastructure

• Piping specifications and selection
• Pipe supports design and analysis
• Valve stations and monitoring

Hydraulic Modelling

• Water balance
• Network modelling and analysis (Fluid Flow software)

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Electrical, Instrumentation and Controls

Design and delivery of power distribution, control systems and instrumentation for process plants and mine infrastructure.

Power Distribution

• High voltage and medium voltage distribution network design (substations, switchgear, transformers)
• Civil works for transformer compounds
• Switchroom and switchgear upgrades and design, including factory acceptance testing
• Low voltage networks
• Cable calc, cable and conduit routing and design, cable scheduling, single line diagrams, termination diagrams
• Power system studies (load flow, fault levels, protection, arc flash)
• Switchboard design and demand calculations

Instrumentation and Controls

• PLCs and Distributed Control Systems (DCS)
• ICSS or Process controls design, engineering and selection for brown and green field projects
• Remote terminal units and Human Machine Interfaces (HMI)
• Software system configuration, programming, testing and commissioning
• Integrated safety systems — SRS development, SIL assessments, SIS, ESD systems, SIF definition and programming
• CCTV, security and access control systems
• Instrument and valve selection and equipment datasheets
• Conveyor and materials handling control and sequencing

Buildings and Facilities

• Lighting studies for car parks, hardstands, offices and workshops
• Motor Control Centre (MCC) design and upgrades
• Variable Speed Drive (VSD) selection and integration
• Hazardous area electrical design (AS/NZS 60079) for dust and explosive environments

Communications

• Communications and network infrastructure
• Fibre optics backbone infrastructure
• Remote monitoring and telemetry for distributed site networks

Power Generation

• BESS and solar design
• Temporary and permanent power for accommodation villages, fly camps and construction site offices
• Process plant commissioning and emergency power
• Standby power for critical infrastructure