论文部分内容阅读
岩溶地区水库渗漏问题是制约该类地区水利水电工程发展的瓶颈。如何准确的查找水库的渗漏原因是解决这一难题的关键。某岩溶地区水库在建成后经过多次修复,但坝脚渗漏量仍然达到4~5 l/s。本文以该水库渗漏原因分析和现场检测工程为依托,提出一种以“工程地质分析、水化学分析、渗漏量监测分析和探地雷达”为基本手段的分析和验证方法。该方法以水文地质控制结构定性分析为基础,通过水质分析、渗漏量监测分析确定渗水的来源,采用渗流理论分析计算排除法确定渗漏通道,进而确定水库渗漏的原因,并以探地雷达无损检测为验证辅助。该方法在现场得到了应用验证,结果表明该方法具有较好的现场适用性。
Reservoir seepage in karst areas is the bottleneck restricting the development of water conservancy and hydropower projects in these areas. How to accurately find the cause of the reservoir leakage is the key to solve this problem. The reservoir in a karst area has been repaired many times after its completion, but the leakage at the foot of the dam still reaches 4 ~ 5 l / s. In this paper, based on the analysis of the cause of the seepage in the reservoir and the on-site inspection project, a method of analysis and verification based on “Engineering Geological Analysis, Water Chemical Analysis, Leakage Monitoring and Analysis and Ground Penetrating Radar” is proposed. Based on the qualitative analysis of hydrogeological control structure, the method determines the source of water seepage through water quality analysis and leakage monitoring analysis, and determines the seepage channel by seepage theory analysis and calculation exclusion method to determine the cause of reservoir seepage Radar NDT for verification assistance. The method has been verified in the field and the results show that the method has good field applicability.