摘要
隔河岩水利枢纽坝基为寒武系中下统碳酸盐岩和碎屑岩，岩溶较发育，地质条件复杂，基础防渗是该工程建设中的关键问题之一。该工程于１９９３年４月１０日开始蓄水，同年６月４日第一台机组投产发电。运行将近两年，基础防渗帷帷幕运行性状良好。通过在岩溶地区建造基础防渗帷幕的实践，本文提出了如下几点认识：防渗帷幕线路的选择是坝址选择的重要影响因素之一；防渗帷幕深度的确定应因地制宜；帷幕灌浆现场试验是选定帷幕设计参数和施工方法的重要手段。
The dam foundation of Geheyan Project consists of the carbonate and elastic rocks, with more karst erosion. The geologic conditions are complex. The seepage prevention in the dam foundation is one of key problems in the project construction. Reservoir filling at this project began on April 10, 1993, and the first generating unit commissioned on June 4,the same year. During approximate two years after commissioning,the good performance of the seepage proof curtain was observed. Through the practice of constructing the seepage proof curtain in karst region,the following knowledges are obtained:(1) Selection of the seepage proof curtain route is an important factor governing the damsite selecting.(2)The depth of seepage proof curtain should be determined in line with local condition(3) The field test for the curtain grouting is an important means for choosing the design parameters of a curtain and its constructing method.
出处
《人民长江》
北大核心
1995年第5期10-14,共5页
Yangtze River
关键词
水利枢纽
坝基
防渗帷幕浆
渗流控制
岩溶地区
Seepage control of dam foundation Curtain Curtain grouting Grouting test Karst region Geheyan Hydropower Station
