Abstract
Use of geophysical methods for geotechnical site characterization is increasing with the development of user friendly and efficient geophysical equipment. Electrical resistivity is one of the geophysical techniques of soil investigation; two latest pieces of electrical resistivity equipment, i.e., Super Sting Digital Resistivity Meter and Nilsson 400 Soil Resistance Meter, were used to characterize a site in the vicinity of Islamabad, Pakistan. The research not only provided an opportunity to validate the geotechnical application of electrical resistivity testing, but also endowed with a good practical log-on the use of these two new pieces of equipment for the field and laboratory resistivity. Field resitivity testing with Super Sting Digital Resistivity Meter and extensive laboratory resistivity of undisturbed soil samples at different moisture content and densities with Nilsson 400 Soil Resistance Meter, has proved the efficiency and versatility of these gears. This paper discusses practical aspects of these state of the art equipments in geotechnical site characterization.
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