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Lihir Kapit Pit Geotechnical Investigation

PSM provides ongoing specialist geotechnical advice to Newcrest’s Lihir Gold Mine in the New Ireland province of PNG.  PSM is currently undertaking pit slope design studies for the expansion of mining into the Kapit ore body which is adjacent to the coast line in the mouth of the Louise Caldera.
The studies are unusually challenging due to the coincidence of complex and variable volcanic geology, high pore pressures caused by a combination of groundwater and geothermal steam, a large landslide and seismicity.  Added to this, a cofferdam is sited along the coastal side of the pit to retain the ocean.  
PSM employed a number of innovative technical approaches to deliver successful designs in these challenging conditions.

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Current Projects

Brisbane Airport Link

Brisbane’s $4.8 billion Airport Link, Northern Busway (Windsor... READ MORE

Kapit Pit Geotechnical Investigation

PSM is involved with Lihir Gold’s Kapit Pit, providing geotechnical... READ MORE