f The Application of Electrical Tomography in Geotechnical Investigations

In conventional site investigations a large number of boreholes has to be deployed over the site in order to obtain sufficient information about the subsurface structure. The subsurface conditions between these boreholes are assumed by correlation (Clayton, et al., 1982). If a large number of boreholes is required the cost of the investigation can becorne prohibitive. The Electrical Tomography (imaging) technique (Griffiths and Barken, 1993) is an equivalent data acquisition technique that can be used to provide detailed information fan the surveyed area at a lower cost.