Geophysics Assisting the Needs of Soil Stabilisation

Soil stabilisation is an increasingly popular method to improve foundation conditions in areas of soft soils where direct construction is not possible because it would result in heavy and uneven settlements detrimental to infrastructure. In order to improve the quality of soil stabilisation, subsurface conditions of target area must be known a priori. Especially water content is the single most important factor determining the amount of binding agent to be injected. Various geophysical measurements have been carried out for determining water content independently. A method to transform measured resistivity to water content in clayrich areas where simple law of Archie will fail to function will be presented.