Estimation of hydraulic conductivity on clay content in soil determined from resistivity data

Авторы: Shevnin V., Delgado-Rodríguez O., Mousatov A., Ryjov A.
Журнал: Geofísica Internacional
Том: 45
Номер: 3
Год издания: 2006
Первая страница: 195
Последняя страница: 207
Аннотация: The influence of clay content in sand-clay soil on the hydraulic conductivity (filtration coefficient) is considered. This work presents a review of published experimental data about the relationship of hydraulic conductivity with the soil lithology and the grain size, as dependence from the clay content. In addition to experimental data, we made theoretical calculations modifying well-known formulas to include clay content in them. Experimental and calculated data show satisfactory correlation, therefore several approximation formulas relating filtration coefficient with clay content were created. Clay content in soil is estimating on electric resistivity data obtained from 2D VES data interpretation. A double-step method is proposed, the first step includes clay content calculation from soil resistivity and groundwater salinity, and the second step includes filtration coefficient estimation on clay content. Two examples of this technique practical application are presented.
Добавил в систему: Шевнин Владимир Алексеевич

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