水力发电2025，Vol.51Issue(3)：37-43,77,8.
考虑渗漏发展的多期次时移高密度电法模拟探测分析
Simulation Detection Analysis of Multi-period Time-lapse High-density Resistivity Method Considering Leakage Development
摘要
Abstract
Leakage is one of the common hidden dangers of earth-rock dams,and precise detection research on it is of great significance.To address the issues of insufficient accuracy in current detection methods and difficulty in monitoring dynamic changes in leakage,a new simulation detection method based on time-lapse high-density electrical method considering leakage development and seepage analysis is proposed.At the same time,to address the noise interference in actual detection,Gaussian noise is added to the simulated detection using Python programming,and the impact of random noise on time-lapse inversion results and measures to reduce noise impact are explored in depth.The research results indicate that,(a)the dynamic response characteristics such as the scale,shape,and numerical changes of the relatively low-resistivity anomaly variation zones in the multi-stage time-lapse inversion results can effectively reflect the dynamic evolution trend of leakage hazards;(b)noise may lead to false anomaly zones,which can be distinguished based on changes in anomaly response characteristics and positional correspondence between multiple stages;and(c)the time-lapse inversion before the occurrence of leakage,as the initial detection,shows significant advantages in reducing the number of false anomaly variation zones and mitigating noise impact compared to the situation after the occurrence of leakage.This study not only systematically analyzes the changes in the detection image patterns of the time-lapse high-density electrical method during the multi-stage detection of leakage development,but also provides valuable insights into reducing the impact of noise on detection results.关键词
土石坝/渗漏隐患/高密度电法/多期次时移探测Key words
earth-rock dam/hidden danger of leakage/high-density resistivity method/multi-period time-lapse detection分类
水利科学引用本文复制引用
朱丽伟,王海军,潘建伍,赵新铭,汪云飞..考虑渗漏发展的多期次时移高密度电法模拟探测分析[J].水力发电,2025,51(3):37-43,77,8.基金项目
国家重点研发计划专项资助项目(2021YFC3090100,2020YFC1511901) （2021YFC3090100,2020YFC1511901）
