Scoping Geotechnical Investigations
Abstract
What constitutes an adequate geotechnical investigation? How do we identify best investigation practise and scope the investigation works for real projects? The underlying theme of most documents and reviews on ground investigation methods suggests that unnecessary expense is incurred on capital projects due to inadequate investigations.
A study has been undertaken of geotechnical investigations for some typical roading projects in New Zealand, Australia, the UK and Fiji in order to compare and contrast the type and styles of investigation favoured. Some very interesting comparisons can be drawn on the type of fieldwork executed, the approach to laboratory testing and the relative costs.