DTE Geotech have geotechnical site investigation experience in a range of geological settings across Perth and WA. We have the capability to undertake a number of investigation techniques, including hand augers, test pits, DCP, PSP, CPT, dilatometer, machine boreholes, SPT, plate load testing, permeability testing (falling head or constant head permeameter), electrical resistivity (4 pin Wenner), thermal resistivity and sampling for a range of laboratory tests. Combining this with an understanding of local construction practice, we have the expertise to tailor geotechnical investigations to meet your specific project objectives, including:
GROUND MODEL DEFINITION AND ASSESSMENT OF SUBSURFACE CONDITIONS
Distribution of encountered soil/rock strata and development of a ground model (where required), including groundwater levels. Geotechnical parameter assessment for soil/rock units encountered.
Topsoil stripping, excavation conditions, foundation preparation, suitability of insitu soils for use as general fill, select fill or road base, compaction requirements, vibration impact, groundwater effects, slope stability, erosion control, ground improvement options (if required).
Shallow strip/pads, rafts and piled foundation solutions, including allowable bearing capacities and settlements.
Including retention system options and construction recommendations.
To AS2870, including recommendations for site preparation and remediation if required.
Site classification to assist with seismic assessments.
For buried concrete, timber and steel elements.
Subgrade CBR, design of granular pavements/hardstands, and pavement defect surveys.
For stormwater disposal/soakwells or septic systems. Includes advice on suitable design infiltration rates for your project site.