地质雷达探测技术在水库放水洞病害治理中的应用  

Application of Geological Radar Detection Technology in Disease Control of Reservoir Discharge Tunnel

作　　者：张金铸 马军 刘胜 Zhang Jinzhu;Ma Jun;Liu Sheng(Xinjiang Toutun River Basin Administration,Changji 831100,China)

机构地区：[1]新疆头屯河流域管理局,新疆昌吉831100

出　　处：《长江技术经济》2021年第6期71-75,共5页Technology and Economy of Changjiang

摘　　要：为解决新疆努尔加水库放水洞内壁渗水、渍水等病害问题,根据工程特征和病害治理的要求,运用地质雷达探测技术对放水涵洞进行了检测。采用地质雷达探测仪,对放水涵洞洞身进行全断面扫描,完成了八条雷达测试剖面线。探测涉及的介质有砂砾石层、黏土、沙土、泥岩、砂岩、混凝土、钢筋、钢管、地下水、空气。通过分析探测目标体的电性差异和边界特征,根据对雷达检测资料的分析研究,发现洞身有裂缝、芡实脱空、水点以及混凝土连接处铜片和细小裂缝等异常。结果表明,运用地质雷达探测技术,可以探测异常的存在和异常规模特征,异常特征分析为放水洞病害评估和治理提供了确实的参考资料。The aim of this research is to solve the problems of water seepage and waterlogging in the inner wall of the drainage tunnel of Nulga Reservoir in Xinjiang..According to the engineering characteristics and the requirements of disease management,the discharge culvert was detected by using the geological radar detection technology.The whole section of the discharge culvert was scanned by using the geological radar detector,and eight radar test profiles were completed.The detected media included sand,gravel,clay,sandy soil,mudstone,sandstone,concrete,steel,steel pipe,underground water,air,and etc.By analyzing the electrical differences and boundary characteristics of the target body,based on the analysis of radar detection data,cracks were found in the body of the hole,voids of Euryale cornstarch,water points,joint of copper between concretes and small cracks and other anomalies were also found.The results show that the existence and scale characteristics of anomalies can be detected by using the technology of geological radar detection.Analysis on abnormal characteristics offer practical references for the evaluation and treatment of drainage tunnel diseases.

关 键 词：地质雷达 探测技术 病害评估 病害治理 放水洞 努尔加水库 

分 类 号：TV523[水利工程—水利水电工程]