Research indicates that up to 50 per cent of public works infrastructure projects in Australia experience time or cost overruns due to unforeseen geological conditions
(2013 study published by Engineering Australia)
The geotechnical approach using a large number of extensive and invasive physical boreholes to infer geological structures over a wide area often misses major geological variations. This can be disastrous and expensive. Geophysics as a secondary “tick the box” exercise to map an area may result in low confidence of the results and a high degree of risk with potential cost overruns. The outcome is poor quality, low cost, poorly presented data results. This results in clients being reluctant to apportion much budget to geophysics, leading to a vicious cycle of poor quality, low innovation and significant cost overruns.