东峡水库坝基渗漏分析及高压旋喷灌浆处理措施

文章针对东峡水库的实际工程地质条件及水库自建成以来存在的问题,通过钻探、取样和实内试验工作,对坝基岩土的性质进行了研究。在此基础上,分析了水库坝基渗漏的原因,对其渗漏量作了估算,研究表明:坝基渗漏主要原因是主河槽两岸的渗漏。该坝基渗漏问题,采取了高压旋喷灌浆防渗处理措施。长期观察测试证明该方法行之有效。

Analysis of Dam Base Processing and Its Jet-grouting Handling Measure of Gansu Dongxia Reservoir

This job focuses on the engineering geological condition and existing problems of Gansu Dongxia reservoir since it was finished,and explores the characteristics of the dam base through drilling,sampling and testing.On this basis,the main causes of leakage of the dam base are analyzed and the leakage volume is estimated by theoretical computation.The research shows the main reason is the leakage of both shores of the main river channel.The leakage problem has been resolved by filling slurry with high pressure.The effectiveness of the presented method is validated by observation and testing in a long term.