高密度电阻率法在路基空洞探测中的应用

为了研究高密度电法应用于已运营公路路基空洞病害无损检测的可行性与适用性,依据长沙绕城高速公路路基空洞病害模拟试验,分别对同路段预埋病害区和正常路基区进行探测,并结合干燥空洞的电性特征,探讨了高密度电阻率法温纳排列对路基空洞病害的探测应用.通过比对分析探测结果可知,预埋病害区探测结果显示视电阻率有明显异常区域,并且视电阻率异常区位置及尺寸与预埋空洞大致相同.这也验证了高密度电法在路基空洞病害检测中的可行性和适用性.

Application of high density resistivity method in the subgrade cavities detecting

In order to study the feasibility and applicability of high density resistivity method which is applied to nondestructive testing of have operating highway subgrade cavities,according to the simulation experiment on subgrade cavity disease of Changsha ring expressway,the embedded disease area and normal roadbed area of the same section are respectively detected,and according to the electrical characteristics of the dry cavity,detailed introduction the high density resistivit-y method wenner arrangementfor roadbed cavity disease detection applications.By comparing the results ofdetect,the results of embedded disease area detection show that the apparent resistivity has obvious abnormal area,and the abnomaly apparent resistivity roughly the same location and size as embedded hollow.It also verifies feasibility and applicability of the high density resistivity method in the subgrdae cavities detecting.