西溪水库碾压混凝土坝渗流异常成因分析  

Analysis of Cause of Abnormal Seepage for Xixi RCC Dam

作　　者：吴光耀 张勇 李子阳[2] 刘成栋[2] 

机构地区：[1]宁海县西溪(黄坛)水库管理局,浙江宁波315600 [2]南京水利科学研究院,江苏南京210029

出　　处：《水电能源科学》2011年第6期93-95,共3页Water Resources and Power

基　　金：国家自然科学基金青年基金资助项目(50909066);南京水利科学研究院青年基金资助项目(Y710003)

摘　　要：以西溪水库碾压混凝土重力坝为例,针对坝基扬压力突然增大的异常现象,基于扬压力监测资料系统分析扬压力增大的成因,并结合大坝有限元渗流正反分析,提出了加强观测分析、对渗流异常部位采取灌浆、排水等渗流控制工程措施建议,以消除渗流隐患。结果表明,坝基防渗体系防渗功能现阶段总体良好,渗流异常不会对工程安全构成较大威胁。The abnormal foundation uplift pressure increases suddenly for the Xixi RCC gravity dam. Therefore, monitoring data are used to systematically analyze the cause of uplift pressure. Then combined with positive and negative analysis of dam seepage with finite element, some suggestions are proposed to remove seepage hidden peril, such as strengthening observation and analysis, grouting and drainage for seepage abnormal position. The results show that the current seepage control function of the dam foundation is good on the whole and the abnormal seepage does not pose great threat to the dam.

关 键 词：碾压混凝土坝 渗流 观测资料 有限元分析 

分 类 号：TV641.21[水利工程—水利水电工程] TV139.1