resistivity method

resistivity method

[‚rē‚zis′tiv·əd·ē ‚meth·əd]
(engineering)
Any electrical exploration method in which current is introduced in the ground by two contact electrodes and potential differences are measured between two or more other electrodes.
References in periodicals archive ?
Bery and Saad (2011) characterized the geotechnical site using approach of electrical resistivity method in Malaysia.
The result of the resistivity method showed that the third layer is the most competent layer in the study area.
The electrical resistivity method was selected because the Resistivity meter is available being less costly more portable and the shallow nature of the basement rocks and the water table.
The major principle of electrical resistivity method is based on the behaviour of the earth to the flow of electrical current.
c,zero] was measured to be 124 [+ or -] 1 K whereas, the zero transition temperature of this sample as measured by the four-probe resistivity method [T.
Specific topics include causes of house subsidence in an area adjacent to Illinois' sinkhole plain, applying the electrical resistivity method in steeply dipping karst terrane, instrumentation and preliminary results from probing the plumbing of Wakulla Spring, water level variation and predicting the Pingshan Sinkhole in Guizhou in southwestern China, the numerical analysis of embankments supported by geosynthetics over drilled shafts in karst terrains, and gypsiferous soils as an engineering problem.
The resistivity method is often used to study the problem of the seawater encroachment.
The electrical resistivity method will furnish information on the surface geology unobtainable by other methods in groundwater studies.
The main advantage of the resistivity method over sampling are: specific consideration of the actual water content at time of measurement, minimal disturbance of the natural soil structure and chemical composition, and a reduced spatial variability due to the possibility of repeated measurements at one spot.
Bristow described an electrical resistivity method of detecting subsurface cavities which has attracted a lot of attention.