Predicting reliable soil profile using electrical resistivity survey

The use of geophysical testing in geotechnical studies is sometimes looked at as a probable rather than certain approach when it comes to construct a precise subsurface soil profile. This often results in conducting excessive borings and huge costs in order to achieve informative and comprehensive data. However, it can be possible to utilize the modern 2D and 3D soil profiling techniques combined with a single borehole data to produce a reliable and correct subsurface profile which can be used confidently by geotechnical engineers. In this study, the procedure of linking single borehole information to the resistivity ranges is set out. The predicted subsurface outcome for other resistivity lines was presented. This study considered only the soil density and soil type as prime factors. In order to validate the procedure further four investigation points were advanced and checked for matches and mismatches. Recorded errors were treated with a range of acceptance and rejection criteria. Further studies were recommended to introduce adequate refinements and propose a generalized model that can be readily used by practicing geotechnical engineers.