永宁水库工程主坝左坝肩软弱夹层基础处理设计  

Design of Soft Interlayer Foundation Treatment for Left Abutment of Main Dam of Yongning Reservoir

作　　者：张正良 汪浏鑫 沈晶鑫 王浩军 胡尧峰 ZHANG Zhengiang;WANG Liuxin;SHEN Jingxin;WANG Haojun;HU Yaofeng(Shaoxing Water Conservancy Project Management Center,Shaoxing 312000,Zhejiang,China;Zhejiang Design Institute of Water Conservancy and Hydro-electric Power Co.,Ltd.,Hangzhou 310002,Zhejiang,China;School of Water Resources and Hydropower,Xihua University,Chengdu 610039,Sichuan,China)

机构地区：[1]绍兴市水利工程管理中心,浙江绍兴312000 [2]浙江省水利水电勘测设计院有限责任公司,浙江杭州310002 [3]西华大学水利水电学院,四川成都610039

出　　处：《浙江水利科技》2023年第2期58-62,共5页Zhejiang Hydrotechnics

摘　　要：永宁水库工程主坝为重力坝,左坝肩基础为软弱夹层全风化土层。为解决变形协调问题,通过延长渗径加强帷幕和固结灌浆等措施,满足结构及渗透稳定的要求,节省工程投资,加快施工进度,解决变形问题。分析水库2017—2020年的监测数据,发现基础沉降量和渗流量均较小,表明工程设计合理。The main dam of the Yongning Reservoir project is a gravity dam,and the left abutment is weak interlayer fully weathered foundation.In order to solve the problem of deformation coordination,measures of extending the seepage diameter,strengthening the curtain and consolidating the grouting were used in the project,which can save the project investment,speed up the construction progress and solve the deformation problem.The monitoring data of the reservoir in recent years show that the foundation settlement and seepage is small,which means the design is reasonable and has reference significance for similar projects.

关 键 词：软弱夹层 全风化基础 重力坝 基础处理 

分 类 号：TV642.3[水利工程—水利水电工程]