水库内填筑土石围堰的设计与施工  

Design and construction of earth and rock cofferdam filling in reservoir

作　　者：任鑫龙 李佳隆 REN Xin-long;LI Jia-long

机构地区：[1]中水北方勘测设计研究有限责任公司,天津300220

出　　处：《东北水利水电》2025年第4期5-9,40,71,共7页Water Resources & Hydropower of Northeast China

摘　　要：贵州凤山水库导流洞进口闸位于现有黑塘桥水库内,需要在水库内填筑围堰并形成基坑方可进行施工。文中根据建筑物位置的地形、地质条件和水库运行要求,对不同围堰结构形式的适用性进行分析比选,提出了“半刚性土石围堰”作为推荐方案,即借助原状地势填筑土石围堰,并根据结构计算确定的灌浆措施进行加固后的基坑开挖,成功解决了水库内建筑物的导流问题,为工程的顺利截流奠定了基础。The entrance gate of diversion tunnel of Fengshan Reservoir in Guizhou is located in the existing Heitangqiao reservoir,which needs to fill cofferdam and form foundation pit before construction.In this paper,the applicability of different cofferdam structure forms is analyzed and compared according to the topography,geological conditions of the building location and the operation requirements of the reservoir,and the "semi-rigid earth-rock cofferdam" is proposed as a recommended scheme,that is,the earth-rock cofferdam is filled with the aid of the original terrain,and the foundation pit is excavated after reinforcement according to the grouting measures determined by the structural calculation.The diversion problem of the buildings in the reservoir is solved successfully,which lays a foundation for the smooth interception of the project.

关 键 词：库内围堰 半刚性土石围堰 渗流稳定 高喷灌浆 

分 类 号：TV551[水利工程—水利水电工程] TV52