时移电阻率法滑坡监测研究  

Study on Landslide Monitoring Based on Time-lapse Electrical Resistivity Tomography

作　　者：周坤宏 刘春宇 胡俭 董毅 李飞[2] ZHOU Kunhong;LIU Chunyu;HU Jian;DONG Yi;LI Fei(China Coal Geology Group Co.,Ltd.,Beijing 100040;Key Laboratory of Mine Disaster Prevention and Control,North China Institute of Science and Technology,Langfang,Hebei 065201;Shaanxi Coal Group Shenmu Zhangjiamao Mining Co.,Ltd,Shenmu,Shaanxi 719399;China Coal Aerial Surrey and Remote Sensing Group Co.,Ltd.,Xi’an,Shaanxi 710199)

机构地区：[1]中煤地质集团有限公司,北京100040 [2]华北科技学院矿井灾害防治河北省重点实验室,河北廊坊065201 [3]陕煤集团神木张家峁矿业有限公司,陕西神木719399 [4]中煤航测遥感集团有限公司,陕西西安710199

出　　处：《中国煤炭地质》2024年第11期71-74,80,共5页Coal Geology of China

基　　金：河北省自然科学基金(D2023508001);秦创原引用高层次创新创业人才项目(QCYRCXM-2022-285);陕西省自然科学基金(2024JC-YBQN-0317)。

摘　　要：相比滑坡灾害监测的传统方法,电阻率法监测方法具有大范围监测地下结构和含水性等信息的优势。在探讨了时移电阻率法滑坡监测的方法和原理的基础上,以张家峁滑坡为原型,建立了降雨前和降雨后的滑坡地质地球物理模型,开展了时移电阻率法滑坡监测的三维数值模拟计算及现场试验。数值模拟结果表明:时移电阻率法监测结果可以较好的反映滑坡结构和含水性变化情况,降雨后滑动带相对滑坡体和滑坡床为相对低阻特征,时移监测结果相比单次探测结果更有利于对滑动带的定位。现场试验结果表明:时移电阻率法监测可以查明滑坡结构、获取地层含水性分布特征和变化情况,提高对滑动带的定位精度,为滑坡监测、预警预报和工程治理提供理论和技术支撑,有效降低滑坡灾害风险。Compared with the traditional methods of landslide disaster monitoring,electrical resistivity tomography(ERT)has the advantage of monitoring underground structure and water content in a large range.The method and principle of ERT landslide monitoring are discussed.Taking Zhangjiamao landslide as the prototype,the geological and geophysical models of landslide before and after rainfall are established,and numerical simulation and field test are carried out.Simulation results show that the monitoring results can well reflect the landslide structure and the change of water content,and the sliding zone is relatively low resistance compared with the landslide body and landslide bed after rainfall.Field test results show that ERT monitoring can identify the landslide structure,obtain the distribution characteristics and changes of water content,improve the positioning accuracy of sliding zone,provide theoretical and technical support for landslide monitoring,early warning and engineering treatment,and effectively reduce the risk of landslide disaster.

关 键 词：滑坡 电阻率法 道路边坡 监测 数值模拟 现场试验 

分 类 号：P631.3[天文地球—地质矿产勘探]