摘要
高达水库大坝左岸地基洪坡积碎石土层及溶洞分布广、深度厚、透水性强,经方案比较,采用对溶洞区进行回填C15细石混凝土、砂浆充填灌浆加后期帷幕的处理方案,经模拟施工加载过程的应力应变计算,对洪坡积碎石土层采用先筑坝再成墙、加分区辅助的综合处理措施,较好地解决了坝基防渗及其与心墙变形协调问题,可为同类工程提供参考依据。
On the left bank foundation of this dam,the flood slope aggregate gravel soil and karst caves are distributed widely and deeply with strong permeability.By multi-scheme comparison,the study took the plan of backfilling the karst caves with C15 pea gravel concrete and mortar,grouting,with post-processing of curtain solution.After stress strain calculation in simulating construction loading process,a comprehensive solution was figured out,which is damming before constructing wall and supported by classified zones of flood slope aggregate gravel.This method efficiently solved the problems of anti-seepage treatment at dam foundation and the coordination with deformation of core wall.It is also hoped to provide reference for similar projects.
作者
陈蔚华
CHEN Weihua(Zhongshan Water Conservancy and Hydropower Surveying, Designing and Consulting Co., Ltd, Zhongshan 528403, China)
出处
《广东水利水电》
2021年第7期40-45,52,共7页
Guangdong Water Resources and Hydropower
关键词
高达水库
工程地质
塑性混凝土防渗心墙
Gaoda Reservoir
engineering geological conditions
plastic concrete anti-seepage core wall
