DownUnder Geotechnical  Limited

Downunder Geotechnical was retained to carry out CPTu and SCPTu at the abutment locations of a propsed three span concrete bridge and road embankments over a creek in Aurora. Testing was carried out to depths of 30m within the firm to stiff silts and silty clays in support of settlement analysis and wick drain design. Over sixty dissipation tests were carried out to estimate the horizontal coefficient of consolidation and five oedometer tests were carried on undisturbed samples to correlate the interpreted constrained modulus and OCR.

Downunder Geotechnical was retained to carry out CPTu tests for a proposed slope stability analysis for a landfill expansion. Interpretation included friction angle, undrained shear strength, SPT-values and soil profiling for the existing soft landfill sludge and existing stiff clay fill.

Downunder Geotechnical was retained to carry out CPTu and SCPTu testing in support of Geotechnical Research of wind turbine foundations. CPTu and SCPTu were advanced to depths of 27m witin the very stiff silty clays. Dissipation tests and shear wave velocities were measured throughout the glaciolaustrine clays. Interpretation included shear wave velocities, undrained shear strengths, constrained modulus, effective friction angles, OCR, and coefficient of horizontal consolidation.