Tailings

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Our tailings and mine waste professionals combine practical experience, industry skill and innovative technology to develop safe, economical and appropriate outcomes. Be it base metal, gold, alumina, ash dams, mineral sands or other mine waste and tailings, GHD has the resources to solve your issues.

Over the past 30 years, we’ve earned local and international recognition for cost-effective, practical, and innovative methods used in tailings design and management.

GHD is represented on national and international technical committees including Australasian Institute of Mining and Metallurgy (AusIMM), Australian National Committee on Large Dams (ANCOLD) and close links with organisations such as the Australian Centre for Geomechanics (ACG).

Services

  • Planning and approvals
  • Investigation and design
  • Project management
  • EPCM services
  • Operation and maintenance
  • Environment
  • Closure and rehabilitation

For further information, contact:

Anjan Kundu
Service Line Leader, Tailings (Mines & Residue) – Australia, Chile, New Zealand, Asia Pacific, Europe and the Middle East
T: +61 7 3316 3163
E: Anjan Kundu


John Westland
Service Line Leader, Tailings (Mines & Residue) – North America
T: +1 905 814 4358
E: John Westland

Didipio Project Mine Waste Management System

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OceanaGold Philippines Inc. engaged GHD to design a Tailings Storage Facility (TSF) and Waste Rock Dump (WRD) for the Didipio gold-copper mine located on the island of Luzon, approximately 270 km north of Manila in the Philippines.

One of the key challenges our team faced was the terrain. The TSF and WRD are located in a steep-sided valley, prone to landslides over a significant river with a wet tropical climate that averages 3.3 m annual rainfall. The target storage volume for the TSF included a large stormwater retention capacity to manage flood inflows and a tight timeframe for construction.

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Savage River Mine Tailings Storages

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GHD’s longstanding work with the Savage River Mine in Tasmania is delivering a range of operational and environmental outcomes.

The Savage River Mine is challenging site featuring steep topography, in the wet west coast of Tasmania climate with 2.5 m annual average rain falling over 200 days/year. Tailings and some waste rock types are Potentially Acid Forming (PAF) which requires careful design and construction to mitigate against generation of Acid and Metalliferous Drainage (AMD). This is in addition to the site managing existing legacy AMD from past operators, which is now the responsibility of the Tasmanian Government in the form of key stakeholder – the Savage River Rehabilitation Committee (SRRP).

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Mining & Metals
Tailings

Anjan Kundu

Service Line Leader, Tailings (Mines & Residue) – Australia, Chile, New Zealand, Asia Pacific, Europe and the Middle East

Anjan has more than 25 years’ civil engineering and management experience in dam and water. He has worked for major dams (tailings and water), hydropower and water supply projects in Australia, Laos, India, Malaysia, Kenya, Ethiopia, Nigeria and France. Anjan is proficient at working for both ‘Owner organisations’ and ‘Engineering consultants’ undertaking concept to closure planning of projects. A Registered Professional Engineer in Queensland, Anjan has assumed the role of team leader, project manager, strategy developer, certifier, reviewer and technical lead in various projects, providing added value at every stage by satisfying regulatory requirements. His recent projects include Rio Tinto’s multiple Red Mud Dam raise, PanAust’s multiple Tailings Dams raise (including corporate governance), Arrow Energy’s multiple lined storage dams (concept to commissioning), and Xstrata’s major Hydropower Dam review in PNG. Anjan has contributed to a number of technical papers internationally and is an ANCOLD member.

Service Line Leader, Tailings (Mines and Residue) – Australia, Chile, New Zealand, Asia Pacific, Europe and the Middle East
T: +617 33163163
E: Anjan Kundu

Australia

John Phillips

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John’s experience spans more than four decades in tailings, water management, dams and soil mechanics. He has led numerous projects in Australia, New Zealand, Indonesia, South America, Africa, and across Europe. John has participated in many expert review panels and assumed the role of independent peer reviewer for multiple tailings projects. John has written more than 42 technical papers and is the recipient of no fewer than six Engineering Excellence awards. John was also named a life member of the Australian National Committee on Large Dams for his significant technical contribution to the industry.

Civil Engineer
T:
+61 8 6222 8507
E: John Phillips

David Brett

David Brett

David has more than 30 years’ experience as a civil/geotechnical engineer with proficiency inn investigation, design and construction of a wide range of engineering infrastructure, particularly in the areas of water, dams, tailings and waste management for mining and industry. His knowledge extends across water and mine tailings dams, water management, hydrology and hydraulics, geotechnical engineering, site investigations, earthworks, foundation design, construction materials, materials testing, soil, rock and concrete technology, environmental engineering for industrial water and waste management, acid rock drainage, remediation and prevention. David is also an active member and contributing author to the Australian National Committee on Large Dams’ Tailings Dams Guidelines. He has published a number of technical papers in Australia and around the world.

Principal Mining Engineer
T: +61 3 6210 0698
E: David Brett

Malcolm Barker

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Malcolm has 40 years’ civil engineering experience in the design, construction and safety of tailings, dams, hydropower projects and canals. He has participated in many tailings dam projects in Australia, Canada, Zimbabwe, South Africa, Malaysia, Papua New Guinea and China. He has been involved in the design and construction of embankment, rockfill, RCC and concrete dams and HEP projects together with tailings dam planning and design for upstream and downstream construction. Malcolm has significant competency in risk assessment and has published multiple technical papers locally and internationally. He has also served in different capacities in the Australian National Committee on Large Dams.

Principal Engineer
T: +61 7 3316 3636
E: Malcolm Barker

Nikifor Petrovic

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Nikifor has more than 35 years’ experience in geotechnical, tailings, dam engineering and hydro power plant development, design and construction for both national and international projects. He has considerable proficiency in the development of feasibility studies, planning investigation work, preliminary, detailed and construction designs of the tailings, water and hydropower dams, dam monitoring, preparatiolin of tender documents, construction supervision, risk and hazard assessments, and annual safety audits. Today, Nikifor works as a leader on complex international projects, managing multidisciplinary teams. He has authored numerous international technical papers and is a highly-sought after speaker.

Technical Director
T: +61 8 6222 8277
E: Nikifor Petrovic

Ken Keam

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Ken is a principal engineer with more than 40 years’ experience in studies, design and construction in civil engineering and mining projects. He is proficient in project management, ash and tailings dams, mine waste management, water resources, tunnelling and mine infrastructure. Ken has worked both nationally and internationally as designer and reviewer in multiple tailings projects, with particular interest in the management of ash.

Principal Dams Engineer
T: +61 8 6222 8277
E: Ken Keam

Dr Allen Li

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Dr. Li has more than 25 years’ experience in engineering consulting and research. His consulting experience includes geotechnical, geo-environmental, hydrological, geological, hydrogeological, process and closure aspects of tailings and mine waste management and mine infrastructure. He has been involved in designing tailings storage facilities for projects in Australia, Americans, Europe and Asia with different climatic and seismic conditions, working with teams across different disciplines to develop effective engineering and environmental solutions. In his career, Dr Li has been responsible for the technical aspects of numerous mine waste management projects, which required innovative solutions. He has developed a series of theoretical models and software programs to model tailings beach slopes, tailings consolidation and drying after deposition and consolidation of soils with wick drains. Dr Li has also authored a number of technical papers.

Principal Engineer
T: +61 7 3316 3301
E: Dr Allen Li

Manoj Laxman

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Manoj is a civil engineer with more than 25 years’ experience relating to tailings dams and their appurtenant structures as well as geotechnical designs and investigations. He is proficient in dams covering most aspects of detailed design work, including hydrology, hydraulics, soil mechanics and structures. He has been involved in the detailed design of several dams above 50 m and up to 180 m high. He is skilled in the detailed design of water dams, tailings dams, preparation of dam break and failure impact assessments, preparation of emergency action plans, operation and maintenance manuals for water dams and tailings dams and geotechnical engineering. Throughout his career, Major has been involved in design and construction support of more than 30 new dams and the design and construction support on numerous tailings dam raises and new tailings storages. He has undertaken comprehensive, annual and special inspections of dams.

Principal Engineer
T: +61 7 413524
E: Manoj Laxman

Dr Mark Locke

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Dr Locke is a civil engineer with more than 20 years’ design and project management experience in dams and tailings dams, geotechnical and hydropower engineering. He has designed and managed construction of several embankment and RCC dams up to 50 m high. Dr Locke possesses specialist skills in geotechnical analysis including liquefaction assessment. He has worked on water, hydropower and mining projects in Australia, Canada, Malaysia, Mexico, New Caledonia, India, Sri Lanka, Slovakia, Turkey, Eritrea and Ethiopia. As part of completing his PhD in geotechnical engineering, Dr Locke has researched the protection of embankment dam cores using granular filters and the assessment of current filter design criteria using computer and laboratory modelling to investigate seepage flow and internal erosion in embankment dams. He has also authored many technical papers.

Principal Dams Engineer
T: +61 3 6210 0768
E: Dr Mark Locke

Jiri Herza

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Jiri is a civil engineer with more than 15 years’ of international experience in various areas of dams, hydropower, tailings, ground and geotechnical engineering including site investigations, field and laboratory testing, foundation and slope stability assessment, embankment and gravity dam design and risk assessment and rehabilitation of existing dams. Over the last eight years, Jiri has acted as a project and design manager for water supply, hydropower and tailings dam projects in Australia, Indonesia, Congo, Philippines, Turkey, Sierra Leone and the UK. He has authored numerous technical papers (locally and internationally) and is an active member of the Australian National Committee on Large Dams.

Principal Engineer
T: +61 8 6222 8099
E: Jiri Herza

Dr Radin Espandar

Dr Espandar is a civil engineer with more than 20 years’ international experience in peer review, investigation, inspection and surveillance, safety review, feasibility study, detailed design, advanced numerical analysis, liquefaction assessment, deep excavation and construction. He is widely published, having authored numerous technical and journal papers.

Principal Engineer
T: +61 3 8687 8664
E: Dr Radin Espandar

Rob Longey

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Rob is a civil engineer with more than 12 years’ experience focusing on mine waste management and mine rehabilitation with experience in Australia and the Philippines. He has successfully overseen the delivery as project manager and design engineer of numerous investigation, design and construction projects for tailings dams and developed life of mine tailings and waste rock management plans. Rob’s proficiency includes mine closure studies and the development of mine closure and rehabilitation plans and mitigation, capture and treatment of acid mine drainage.). He has authored a range of technical papers for local and international publications.

Project Manager / Senior Civil Engineer
T: +61 3 6210 0687
E: Rob Longey

Michael Ashley

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A senior civil engineer with more than 11 years’ experience in dams and tailings engineering, Michael has been involved in a range of projects. He is skilled in all aspects of design, construction, surveillance and review of dams and tailings dams of varying sizes. Michael has worked on a range of projects in Western Australia, Victoria, South Australia and internationally in the water and mining sectors.

Civil Engineer
T: +1 8 6222 8827
E: Michael Ashley

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