摘要
地下溶洞易引发建筑物沉降、地面塌陷等灾害,为保障安全,在施工前进行溶洞勘察很有必要。高密度电法因其操作方便、探测准确,在溶洞探测中得到广泛应用。通过高密度电法在南方某机场溶洞探测中的应用,结合地质资料,明确了工区电性异常的分布情况,圈定了多个异常靶区,查明了隐伏岩溶分布范围,指导钻探验证工程,为工区地质环境保护与治理提供了可利用的直接依据。根据钻探结果,印证了高密度电法在溶洞探测中的有效性。
Underground karst cave is easy to cause disasters such as building settlement and ground collapse.In order to ensure safety,it is necessary to carry out karst cave survey before construction.Electrical resistivity tomography method is widely used in karst cave detection because of its convenient operation and accurate detection.By expounding the application of electrical resistivity tomography method in karst cave detection of an airport in South China,combined with geological data,the author defines the distribution of electrical anomalies in the work area,delineates multiple abnormal target areas,finds out the distribution range of concealed karst,guides drilling verification engineering,and provides an available direct basis for geological environment protection and treatment in the work area.According to the drilling results,the effectiveness of electrical resistivity tomography method in karst cave exploration is confirmed.
作者
潘纪顺
王晓雷
PAN Jishun;WANG Xiaolei(College of Geosciences and Engineering,North China University of Water Resources and Electric Power,Zhengzhou 450046,China)
出处
《河南科技》
2022年第3期30-33,共4页
Henan Science and Technology
关键词
高密度电法
溶洞探测
温纳
electrical resistivity tomography
cave detection
wenner
