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采用电阻率层析成像二维测量的方法,对河南省三门峡市沿河开发的建筑场地进行了勘探,获取了地下隐伏沙洞的准确位置、埋藏深度、含水情况、尺寸大小等。说明电阻率层析成像二维测量的方法在地下隐伏沙洞的探测中是行之有效的;地下隐伏沙洞在没有水体存在时,电阻率层析成像二维测量成果图中反映的一般都是高阻异常封闭圈。如果有水体存在,其异常则表现为低阻异常封闭圈。
Based on the two-dimensional resistivity tomography method, the construction site along the river in Sanmenxia City of Henan Province was explored, and the exact location, burial depth, water content, size and so on of hidden underground sand tunnels were obtained. It shows that the method of two-dimensional resistivity tomography is effective in the detection of concealed sand underground tunnels. When there is no water in the underground concealed sand tunnel, the resistivity tomography generally reflects the two- Is a high resistance abnormal closed loop. If there is water body, the abnormal performance of low resistance anomalous closed loop.