石灰土电阻率的各向异性室内试验研究

Laboratory Experiments Research of Lime-Soil Electrical Resistivity Anisotropy

通过室内电阻率实验方法,研究不同配比的石灰土的电阻率,并根据测量横向及纵向的电阻率,通过计算土的电阻率各向异性指数,来反应击实土样的电阻率各向异性,得知石灰含量对电阻率及其各向异性有影响,在软土中掺加石灰能使电阻率增加,且随着含量增加电阻率减小,石灰含量小且含水量小时电阻率最大,电阻率各向异性指数也最大,而当含水量增大时,石灰含量对于各向异性指数的影响减小。

Through laboratory electrical resistivity experiments, researching lime soil resistivity at different lime ratio by calculating soil transverse resistivity and vertical resistivity anisotropy index, the resistivity of compacted soil samples were measured. The results are that the resistivity and resistivity anisotropy were influenced by the contents of lime. The resistivity of soft-soil can increase by adding the content of lime, and the resistivity decreased when water content increase, that means the larger resistivity and resistivity anisotropy index with less water content and lime ratio, but when the water content increase to a certain degree, the influence of lime ratio to resistivity index become small.