视电阻率法在隐伏岩溶灾害调查中的应用  

Application of apparent resistivity method in the investigation ofgeologic hazard for concealed karst

作　　者：孟庆鲁 李兆令 王聪 胡安顺 薛成 Meng Qinglu;Li Zhaoling;Wang Cong;Hu Anshun;Xue Cheng(The Fifth Geological Brigade,Shandong Provincial Bureau of Geology&Mineral Resources,Tai′an 271000,China;Key Laboratory of Karst Collapse Prevention and Control of Shandong Bureau of Geology&Mineral Resources,Tai′an 271000,China)

机构地区：[1]山东省地质矿产勘查开发局第五地质大队,山东泰安271000 [2]山东省地矿局岩溶塌陷防治重点实验室,山东泰安271000

出　　处：《工程勘察》2024年第8期82-86,共5页Geotechnical Investigation & Surveying

摘　　要：隐伏岩溶发育引起的地面塌陷和地裂缝等地质灾害频繁发生,提高勘查方法和解译精度在隐伏岩溶区灾害调查中尤为重要。视电阻率法数据处理、反演算法以及综合解译方法的进步为地质灾害调查提供了有力手段。本文引入视电阻率三维模型,结合二维剖面分析,对采集的视电阻率数据进行综合整理,丰富了数据处理方法,提高了数据模块关联性,有效提高了解译精度和地质模型契合度。结合钻探验证情况对泰安市桥沟地区隐伏岩溶塌陷区进行分析研究,通过隐伏岩溶发育区的视电阻率特征,分析岩溶发育范围和成因,为隐伏岩溶区灾害调查提供了良好的地球物理应用和参考价值。Geological disasters such as ground subsidence and ground fissures caused by the development of hidden karst occur frequently,and improving exploration methods and interpretation accuracy is particularly important in the investigation of hidden karst disasters.The advancement of the data processing,inversion algorithms and comprehensive interpretation methods used the apparent resistivity method has provided powerful means for geological hazard investigation.This article introduces a threedimensional model of apparent resistivity,combined with two-dimensional profile analysis,to comprehensively organize the collected apparent resistivity data,enrich data processing methods,improve data module correlation,effectively improve interpretation accuracy and geological model fit.Based on the drilling verification results,the hidden karst collapse area in Qiaogou area of Tai′an City is analyzed.By analyzing the apparent resistivity characteristics of the hidden karst development area,the scope and causes of karst development are analyzed,providing a good geophysical application and reference value for the investigation of hidden karst disasters.

关 键 词：地质灾害 隐伏岩溶 视电阻率 断裂构造 

分 类 号：P641[天文地球—地质矿产勘探]