基于高密度电法探测与渗流监测的土石坝渗漏隐患综合研判  

Comprehensive Judgment of Leakage Hidden Danger of Embankment Dam Based on High-density Electrical Method and Seepage Monitoring

作　　者：黄昊冉 吴云星 冯春燕 谷艳昌[1,2] 庞琼[1,2] 周稳忠 HUANG Haoran;WU Yunxing;FENG Chunyan;GU Yanchang;PANG Qiong;ZHOU Wenzhong(Dam Safety and Management Department,Nanjing Hydraulic Research Institute,Nanjing 210029,Jiangsu,China;Dam Safety Management Center of the Ministry of Water Resources,Nanjing 210029,Jiangsu,China;Hengshan Reservoir Control Station of Yixing City,Yixing 214200,Jiangsu,China)

机构地区：[1]南京水利科学研究院大坝安全与管理研究所,江苏南京210029 [2]水利部大坝安全管理中心,江苏南京210029 [3]宜兴市横山水库管理所,江苏宜兴214200

出　　处：《水力发电》2022年第8期55-60,共6页Water Power

基　　金：南京水科院基本科研业务费重点项目(Y721005);国家重点研发计划(2018YFC0407106);国家自然科学基金项目(51979175)。

摘　　要：渗漏病害为土石坝中常见病害,但由于渗漏通道位于坝体内部,难以掌握其具体位置。高密度电法在土石坝渗漏隐患探测已逐步应用。对已安装渗流监测设施的土石坝,可借助其渗流监测资料与现场检查成果,对高密度电法的探测成果进行解释,可对大坝内部的渗漏隐患情况进行综合判断。以某水库为例,采用高密度电法中的温纳装置进行现场探测,通过分析反演图像找到潜在可能的渗漏通道,并通过渗流监测数据加以综合研判。结果表明,将高密度电法与渗流监测成果结合使用,能够有效发现渗漏隐患,在大坝渗漏隐患探测中具有良好的效果。Leakage disease is a common disease in embankment dams.Because the leakage channel is located inside the dam body,it is difficult to find its specific location.The high-density electrical method has been gradually applied in the detection of hidden dangers of embankment dam leakage.For the embankment dams that have installed seepage monitoring facilities,the seepage monitoring data and on-site detection results can be used to interpret the detection results of the high-density electrical method,and a comprehensive judgment of the hidden leakage dangers inside the dam body can be made.Taking a reservoir as an example,the Wenner device in the high-density electrical method is used for on-site detection,and the potential leakage channels are found by analyzing the inversion images.Compared with seepage monitoring data,the potential leakage channels are comprehensively judged.The results show that the combination of high-density electrical method and seepage monitoring results can effectively find leakage hidden dangers,and has good effects in the detection of leakage hidden dangers in embankment dams.

关 键 词：土石坝 大坝渗漏 渗漏隐患 高密度电法探测 无损探测 渗流监测 

分 类 号：TV697.32[水利工程—水利水电工程] TV641