瀑布沟导流洞围岩稳定与支护结构分析  

Analysis of Stability and Support Structure for the Surrounding Rock in the Diversion Tunnel of Pubugou Hydropower Station

作　　者：伍鹤皋[1] 李家亮[2] 付峥[2] 

机构地区：[1]水资源与水电工程科学国家重点实验室武汉大学,武汉430072 [2]国电公司成都勘测设计研究院,成都610072

出　　处：《中国农村水利水电》2006年第6期93-96,99,共5页China Rural Water and Hydropower

摘　　要：采用弹塑性有限元分析方法对导流隧洞开挖、支护、运行以及最后封堵的全过程进行了较为全面的仿真计算分析,给出了围岩和混凝土衬砌结构的位移、应力分布等,根据计算结果提出了导流洞结构的设计原则和工程处理措施,基本上解决了高外水条件下隧洞设计的难题。Numerical analyses of the diversion tunnel excavating, support, operation and the final sealing period have been carried out by means of Elasto-plastic FEM. The displacement and stress distribution of surrounding rock and concrete lining are provided, and the design principle and engineering measurements for the diversion tunnel of the project are proposed based on the computational results. As a result, the difficult design problems of the diversion tunnel under high water-level condition have been solved.

关 键 词：导流洞 混凝土衬砌 弹塑性有限元 开挖支护 

分 类 号：TV672.1[水利工程—水利水电工程]