综合物探技术在水利工程勘测中的应用  

Application of comprehensive geophysical exploration technologyin hydraulic engineering survey

作　　者：熊友亮 朱萌[1,2] 刘海涛 殷浤益[1,2] 李欢 罗望来 Xiong Youliang;Zhu Meng;Liu Haitao;Yin Hongyi;Li Huan;Luo Wanglai(Changjiang Institute of Survey Technical Research,Ministry of Water Resources,Wuhan,Hubei 430011;Changjiang Institute of Survey,Planning,Design and Research,Wuhan,Hubei 430010)

机构地区：[1]水利部长江勘测技术研究所,湖北武汉430011 [2]长江勘测规划设计研究有限责任公司,湖北武汉430010

出　　处：《资源环境与工程》2024年第3期353-359,共7页Resources Environment & Engineering

基　　金：水利工程土岩复合地层隧洞地质勘察与盾构适应性研究(CX2023Z34-2)。

摘　　要：查明线路沿线低阻异常产生的原因是水利工程勘测的重点内容之一。以东莞市某引水工程勘测为例,采用岩心电阻率测量、高密度电法、天然源面波法等综合物探技术,查明引水管道沿线岩体的电阻率特征,分析低阻异常的地质成因。结果表明,引水管道沿线发育多个低阻异常区,主要由低阻岩体、断裂破碎带及大面积水体的旁侧效应引起;岩体往往因含金属矿物或破碎含水而具有低电阻率,而大面积水体的旁侧效应对高密度电法探测结果的影响也不容忽略。建议在水利工程中应用多种物探技术进行探测和相互验证,提高成果资料的可靠性,更好地指导工程建设。Finding out the causes of low resistivity anomalies along the line is one of the key contents of water conservancy project survey.Taking the investigation of a diversion project in Dongguan as an example,the resistivity characteristics of rock mass along the water diversion pipeline are identified by using comprehensive geophysical prospecting techniques such as core resistivity measurement,high density resistivity method and natural source surface wave method,and the geological causes of low resistivity anomalies are analyzed.The results show that there are many low-resistivity anomaly areas along the diversion pipeline,which are mainly caused by the low-resistivity rock mass,fault fracture zone and the side effects of large-area water.The rock mass often has low resistivity due to metal-bearing minerals or broken water content,and the influence of the side effect of large-area water on the detection results of high-density electrical method cannot be ignored.It is suggested that a variety of geophysical exploration techniques should be applied in water conservancy projects to detect and verify each other,so as to improve the reliability of the results and better guide the construction of the project.

关 键 词：高密度电法 天然源面波法 综合物探技术 旁侧效应 

分 类 号：P631[天文地球—地质矿产勘探]