Geophysics in Bendigo addresses the challenges of mapping subsurface conditions across weathered granite, basalt flows, and deep alluvial gullies typical of the Victorian goldfields. Non-invasive imaging is essential here to navigate variable rockhead, reactive clay pockets, and historical mine workings. Methods must align with Australian standards such as AS 1726 for site investigations, providing reliable data where drilling alone may be blind. Our GPR survey details shallow utilities and concrete structures, while electrical resistivity / VES profiles bedrock depth and groundwater pathways critical for foundation design.
These surveys support infrastructure, renewable energy, and brownfield redevelopment projects requiring rigorous geotechnical models. For seismic site classification under AS 1170.4, MASW / VS30 shear wave velocity testing delivers the dynamic soil properties engineers depend on. In Bendigo’s complex regolith, combining surface geophysics with targeted drilling reduces risk and accelerates approvals.
Full determination per AS 1289.3.1.1 and 3.2.1. Includes liquid limit by Casagrande cup, plastic limit by thread rolling, and calculated plasticity index. Suitable for all fine-grained soils in Bendigo.
Measures the shrinkage of a soil bar when dried from its liquid limit condition. Essential for predicting ground movement in reactive clays common in the region.
Atterberg results plus full USCS classification (including grain size distribution and organic content). Delivers a complete soil identity for foundation design.
If initial results show borderline plasticity or field conditions change, we re-run Atterberg limits on fresh samples to confirm consistency before final design decisions.
AS 1289.3.1.1 – Determination of liquid limit (Casagrande method), AS 1289.3.2.1 – Determination of plastic limit, AS 1289.3.1.1 – Standard test methods for liquid limit, plastic limit, and plasticity index of soils
The typical range for a standard Atterberg limits test (LL, PL, PI) is AU$80 – AU$180 per sample. This can vary depending on the number of samples, required turnaround time, and whether additional classification tests are bundled.
Bendigo's soils range from low-plasticity sands near the hills to highly expansive clays in the floodplain. Atterberg limits are the only way to quantify plasticity and predict shrink-swell behaviour. Without this test, foundation design for reactive soils is guesswork.
Yes. The plasticity index directly influences subgrade stiffness and susceptibility to moisture changes. In road design, Atterberg results help select stabilisation additives (lime, cement) and are often combined with CBR testing to set design subgrade values.