浆砌石坝体内部缺陷无损检测技术研究  

Research on non-destructive testing technology of internal defects of masonry dam

作　　者：孙亚东[1] 贾惋清 Sun Yadong;Jia Wanqing(Jilin Provincial Water Conservancy Research Institute,Changchun130022,China)

机构地区：[1]吉林省水利科学研究院,长春130022

出　　处：《吉林水利》2022年第9期15-21,共7页Jilin Water Resources

基　　金：基本科研经费(社会发展领域)项目(项目编号:JLSKY-JBKYJF-2021-03)。

摘　　要：桦甸市关门砬子水库浆砌石重力坝左侧坝段后坝坡存在多处渗水现象,个别部位有白色钙华析出,说明坝体内部存在缺陷,已形成了渗漏通道,给工程的安全运行带来了严重的隐患。针对上述问题,项目组提出了采用地质雷达法,辅以超声探测法,对关门砬子水库浆砌石坝体内部缺陷进行无损检测,经数据处理、建模及模型分析后,对坝体内部缺陷进行了准确定位,并对发现的缺陷问题提出了相应的处理措施。There are many water seepage phenomena in the rear slope of the left dam section of Guanmenlazi Reservoir gravity dam in huadian city,and white free calcium oxide precipitation in some parts,which indicates that there are defects in the dam body and a leakage channel has been formed,which brings serious hidden dangers to the safe operation of the project.In view of the above problems,the project team proposed the use of geological radar method,supplemented by ultrasonic detection method,to conduct nondestructive testing detection on the internal defects of the masonry dam of Guanmenlazi Reservoir.After data processing,modeling and model analysis,the internal defects of the dam body were accurately located,and the corresponding treatment measures were put forward for the found defects.

关 键 词：浆砌石坝 缺陷 无损检测 地质雷达 超声探测 

分 类 号：TV641.3[水利工程—水利水电工程]