西藏旁多水利枢纽坝基深厚覆盖层防渗分析论证  

Analysis and demonstration of deep overburden seepage for dam foundation of Pangduo hydro project in Tibet

作　　者：史光宇[1] 刘牧冲[1] 刘清利[1] 匡启兵[1] 

机构地区：[1]中水东北勘测设计研究有限责任公司,吉林长春130021

出　　处：《东北水利水电》2010年第7期1-4,共4页Water Resources & Hydropower of Northeast China

摘　　要：旁多工程坝基覆盖层深厚,防渗面积大,且处于4000m以上的高海拔地区。因此,坝基防渗形式的选择合理与否是个关键问题。为此,通过比较灌浆帷幕、混凝土防渗墙、上墙下幕以及悬挂式防渗墙等方案,从防渗可靠性、施工技术条件、电力资源损失、运行检修条件及工程投资等诸多方面进行了综合比较,优选出坝基防渗的最佳方案。The Pangduo hydro project has deep overburden and large anti-seepage area,which is located in the high altitude area more than 4000m.Therefore,how to reasonably select the anti-seepage pattern of dam founda-tion is the key to the problems.By comparing these schemes of the curtain grouting,the concrete anti-seepage wall,upper wall and down curtain,hanging type anti-seepage wall,etc.the paper selects the optimum scheme of dam foundation anti-seepage by the comprehensive comparison from the many aspects of anti-seepage reliability,construction technology conditions,power loss,operation and maintenance conditions,project investment,etc.

关 键 词：坝基 深厚覆盖层 防渗 西藏旁多水利枢纽 

分 类 号：TV223.4[水利工程—水工结构工程]