北京大宁水库副坝防渗墙应力变形有限元分析  

Finite element analysis on stress-deformation of cutoff wall in auxiliary dam for Daning Reservoir in Beijing

作　　者：王荣鲁[1,2] 窦铁生[1,2] 熊欢[3] 冯雁[4] 鲁一晖[1,2] 

机构地区：[1]中国水利水电科学研究院,北京100038 [2]水利部水工程建设与安全重点实验室,北京100038 [3]清华大学,北京100084 [4]北京市水利规划设计研究院,北京100048

出　　处：《水利水电技术》2010年第3期46-49,共4页Water Resources and Hydropower Engineering

基　　金："十一五"科技支撑计划(No.2006BAB04A04)

摘　　要：以南水北调大宁水库副坝混凝土防渗墙为例,采用二维非线性土石坝有限元计算程序,对其典型剖面进行了有限元计算,并分析比较不同材料及不同工况下防渗墙的应力变化,得出墙体的应力变形规律,优选出最佳的防渗墙材料,从而改善防渗墙的应力状态。文中还提出了防渗墙设计指标的合理范围,这对实际工程有重要的指导意义。Taking the concrete cutoff wall in the auxiliary dam for Daning Reservoir for the South-to-North Water Transfer Project as a studying case, a finite element calculation is made on the typical section of the wall based on the 2-D nonlinear finite element analysis program for embankment dam ; in which the stress changes of the wall with different materials and under various operation conditions are compared and analyzed, and then not only the law of the stress-deformation of the wall is obtained, but the optimal anti-seepage materials are also optimized ; by which the stress status of the wall is improved. Furthermore, a rational scope of the index for the design of the cutoff wall is also given herein, which can be taken as a reference for the actual project concerned.

关 键 词：混凝土防渗墙 有限元分析 应力 应变 大宁水库副坝 

分 类 号：TV543.82[水利工程—水利水电工程]