广西大龙潭水库防渗堵漏灌浆新技术应用

Application of new grouting technologies for anti-seepage and leakage blocking to Dalongtan Reservoir in Guangxi

基于广西大龙潭水库防渗工程,对工程中采用的多项独创防渗堵漏技术方法和工艺措施进行了介绍,主要有:先堵洞后周边固结灌浆法(俗称:反捕捉洞穴海黄鳝鱼灌浆法)、堵头加强通道追源灌浆法、喇叭形导流平压过滤反堵灌浆法,成功地使渗漏严重的水库得到修复,为在岩溶地区进行工程防渗堵漏提供了一套行之有效的处理方法,具有很好的经济和社会效益。

Based on the anti-seepage project of Dalongtan Reservoir in Guangxi Province,some ingenious technologies and technical measures of anti-seepage and leakage blocking applied to the project are described herein;mainly including: the method of perimeter consolidation grouting after pre-blocking of leakage cavity;the method of seepage path tracing grouting with strengthened grouting plug;the method of inverted-plug grouting with flared-diversion and even pressure filtering;etc.,with which the serious seepage and leakage of the reservoir are successfully rehabilitated,and then provide a set of feasible methods for the treatment on seepage and leakage of the projects within the karst regions with better economic and social benefits as well.