粘土心墙堆石坝坝基渗漏原因分析及处理  

Analysis and Treatment of Leakage Cause of Clay Core Wall Rockfill Dam Foundation

作　　者：郭建设[1] GUO Jianshe(Guangdong Hydropower Planning & Design Institute, Guangzhou 510635, China)

机构地区：[1]广东省水利电力勘测设计研究院,广东广州510635

出　　处：《广东水利水电》2020年第7期51-54,共4页Guangdong Water Resources and Hydropower

摘　　要：该文介绍某水库粘土心墙堆石坝发现渗漏后,采取了自然电场法、伪随机流场法、大地电磁法、示踪、温度测试、电导等综合物探方法及钻斜孔检测等手段,结合监测成果、渗漏量变化、地质条件分析等,论证了产生渗漏的主要部位为心墙砼垫层下强风化带和弱风化上带浅层基岩;根据检测和分析成果,有针对性地提出了防渗补强方案,处理效果良好,可为类似工程提供借鉴。This paper introduces the comprehensive geophysical exploration methods such as natural electric field method,pseudo-random flow field method,magnetotelluric method,tracing,temperature test,conductance method and borehole detection method after the leakage is found in a clay core rockfill dam of a reservoir.Combined with the monitoring results,the change of leakage amount and the analysis of geological conditions,it is proved that the main parts of leakage are the strong weathering zone and weak wind under the concrete cushion of the core wall;According to the results of detection and analysis,the anti-seepage and reinforcement scheme is put forward,and the treatment effect is good,which can provide reference for similar projects.

关 键 词：粘土心墙堆石坝 渗漏 检测方法 防渗补强措施 

分 类 号：TV698.233[水利工程—水利水电工程]