高密度电法在供电所地基塌陷沉降检测中的应用  

Application of high-density resistivity method for detection of foundation subsidence and settlement in power supply station

作　　者：王浩 王永刚 张俊 WANG Hao;WANG Yonggang;ZHANG Jun(Power China Guizhou Electric Power Engineering Co.Ltd,Guiyang 550081,China)

机构地区：[1]中国电建集团贵州电力设计研究院有限公司,贵阳550081

出　　处：《水科学与工程技术》2024年第1期81-85,共5页Water Sciences and Engineering Technology

摘　　要：某供电所地面发生塌陷沉降,导致墙体发生开裂,严重影响供电所的安全运行。为查明地面塌陷沉降诱发因素,根据地质调查,选取具有分辨率高、快速精准、异常响应特征明显的高密度电法作为无损检测方法,将其应用于地基沉降检测,通过常规高密度电法与超深高密度电法反演处理,并结合正演模拟对比分析。结果表明:高密度电法地电断面有效圈定了供电所底部软弱夹层,通过钻探进一步验证了物探解译成果的有效性,为查明供电所塌陷沉降诱发因素提供依据。The ground subsidence of a power supply station leads to wall cracking,which seriously affects the safe operation of the power supply station.In order to identify the inducing factors of ground subsidence and settlement.Based on geological survey,the high-density resistivity method with high resolution,fast and accurate,and obvious abnormal response characteristics is selected as the non-destructive testing method,and applied to foundation settlement detection in this paper.Through inversion processing of conventional high-density electrical method and ultra-deep high-density electrical method,combined with forward simulation and comparative analysis.Through the inversion processing of conventional high-density electrical method and ultra-deep high-density electrical method combined with forward simulation,the results show that the high-density electrical method effectively delineates the weak interlayer at the bottom of the power supply station,and the validity of the geophysical interpretation results is further verified by drilling,which provides a basis for the induced factors of the power supply station subsidence.

关 键 词：供电所 地基塌陷沉降 软弱夹层 高密度电法 超深高密度电法 

分 类 号：P319.2[天文地球—固体地球物理学]