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Pells Sullivan Meynink

Brisbane Adelaide Street, QLD 4000


About us

PSM provides specialised design and investigation services for engineering in rock, soil and water. The company was established in 1993 and brings together substantial experience in the fields of engineering geology, mining, rock mechanics, soil mechanics, hydrology and hydrogeology. The company comprises a group of more than fifty professionals as well as associated support staff operating from offices in Brisbane, Sydney, Perth

PSM is a firm of consulting engineers, geologists, hydrogeologists and hydrologists. We have been providing practical and innovative solutions based on global best practice to achieve outstanding outcomes for our clients since 1993.

Our clients include government and private organisations, asset owners and contractors in Australia, New Zealand, Southeast Asia, Africa, the Americas, India, and Russia. Projects range from small developments to mega projects.

We have a highly motivated and committed team of 180 professionals, including 31 principals, in our Sydney, Perth, Brisbane and Melbourne offices. Our personnel are highly qualified and experienced in specialised niche technical areas.

Our work is supported by advanced proprietary and commercial engineering software and sophisticated modelling techniques.

We are committed to continuous technical growth and education. Our close affiliations with leading universities in Australia and New Zealand include University of New South Wales (UNSW), University of Newcastle, Macquarie University and University of Canterbury.

Providing innovative investigation and design services for engineering in rock, soil and water since 1993:






We are renowned for our rigorous design process which is supported by analysis and accurate engineering geological and hydrological models. Through meticulous monitoring and mapping checks we ensure that our design assumptions are borne out by reality.

Industry leaders in mining excavation geotechnical design.

nnovative and practical engineering solutions in geology, mining, hydrogeology, geomorphology and seismic environments.

Experience in all major resource types in Australia, New Zealand, Russia, Southeast Asia, Africa, Central and South America.

Expertise in:

  1. Open cut and underground mines
  2. Mine closure
  3. Dewatering and depressurisation
  4. Sound and practical designs based on rigorous geotechnical models and advanced modelling techniques to optimise mining outcomes.

Targeted, cost-effective and innovative solutions for complex problems from residential and industrial developments to major transport infrastructure:

  1. Investigation and interpretation
  2. Design and analysis
  3. Construction support
  4. Legal and forensic expert advice
  5. Private, government, contractor, developer, asset owner and legal clients.

Setting industry benchmarks with innovative and practical solutions for all aspects of tunnel design and construction support:

  1. Feasibility planning
  2. Geotechnical interpretation
  3. Site investigations and hydro-geological modelling
  4. Detailed design
  5. Construction management
  6. Asset management
  7. Expert witness.

Proven track record in temporary and permanent large underground rail, road and mining projects throughout Australia, Africa and Asia, including some of the largest-spanning tunnels in Australia.

A full range of integrated assessment and design services to manage water for better outcomes in civil, tunnelling, mining and dams.

  1. Hydrology
  2. Hydraulics
  3. Mine water management
  4. Water resources
  5. Flooding
  6. Rivers and streams
  7. Stormwater
  8. Groundwater and seepage.

Industry-leading analysis and insight in geotechnical and water-related aspects of earth, rock and embankment dams and dam safety.

Dam services include:

  1. Site selection
  2. Design and construction
  3. Dam foundation design and assessment
  4. Dam break studies
  5. Spillway and outlet design
  6. Specialist spillway scour services
  7. Geotechnical and hydrologic assessments
  8. Embankment design, material selection and specification
  9. Construction supervision and risk assessments
  10. Analyses including numerical stability, 2D and 3D, seepage, and computational fluid dynamics.

Innovative, practical and efficient specialist solutions to complex issues:

  1. Engineering geology
  2. Forensic investigations
  3. Monitoring
  4. Photogrammetry
  5. Borehole imaging
  6. 3D modelling
  7. Discrete Fracture Network (DFN) Modelling.


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  • 6/500 Queen Street, Brisbane City QLD 4000, Australia

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