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About us

Sonnekus Associates Pty. Ltd. is an independent geotechnical engineering consultancy servicing the mining and civil engineering sectors in Australia and internationally.

We specialize in the geotechnical investigation and assessment of large open cut and underground mines.

We have geotechnical experience across several commodities. Such commodities include iron ore, gold, copper, platinum, coal, diamonds, molybdenum, lead-zinc and mineral sands.

Many of the open cut mining projects that we have been responsible for include well developed oxide profiles with prominent geological structures and elevated groundwater conditions.

Our underground geotechnical experience include seismically active narrow vein gold mining, block cave development, long hole and sub-level open stoping, open stoping in a primary-secondary configuration, vertical crater retreat, room and pillar, and cut and fill.

We also provide engineering geology services to the civil engineering industry. We specialize in rock mass characterization and ground support designs for civil tunnels and surface excavations.  

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