高密度电法探测堤防隐患研究  

Research on Resistivity Tomography to Detection for Hidden Dangers of Embankment

作　　者：宋朝阳[1] 王锐[1] 李长征[1] 张清明[1] 李延卓[1] 康延铭 SONG Chaoyang;WANG Rui;LI Changzheng;ZHANG Qingming;LI Yanzhuo;KANG Yanming(Yellow River Institute of Hydraulic Research,Zhengzhou 450003,China;Zhengzhou Metro Group Co.,Ltd.,Zhengzhou 450000,China)

机构地区：[1]黄河水利科学研究院,河南郑州450003 [2]郑州地铁集团有限公司,河南郑州450000

出　　处：《人民黄河》2020年第7期104-106,141,共4页Yellow River

基　　金：国家重点研发计划项目(2016YFC0401608);黄科院基本科研业务费专项(HKY-JBYW-2019-15)。

摘　　要：为掌握堤防安全状况,保障堤防安全运行,采用高密度电法对堤防进行隐患探测。电法探测通常建立在半无限空间理论基础上,而堤防断面并不满足半无限空间这个条件。为降低堤防地形条件对电法探测结果的影响,提高高密度电法探测分辨率,从电法装置选择和电极距选取的角度出发,通过建立梯形堤防断面进行数值模拟,对比不同电法装置和电极距的数值模拟结果,并通过模型试验进行了验证。结果表明:在梯形堤防隐患探测中宜选用施伦伯格装置;为保证电法探测分辨率,电极距不宜大于1.0 m。The application of resistivity tomography to detection for hidden dangers of embankment can grasp the safety status of embankment and ensure their safe operation.Electrical detection is usually based on the theory of semi⁃infinite space,but the section of embankment does not satisfy the condition of semi⁃infinite space.In order to reduce the impact of embankment terrain to the electrical method and improve the detecting precision of resistivity tomography,the paper established a trapezoidal embankment.Through changing the arrays and the distance of electrodes,the paper established a numerical simulation and model test.It is better to choose Schlumberger array in the detection of the hidden dangers.Electrode distance should not be more than 1.0 m to ensure the the detection resolution.

关 键 词：堤防隐患 高密度电法 梯形堤防断面 

分 类 号：TV82[水利工程—水利水电工程]