龙滩进水口高边坡稳定的三维有限元分析成果简述  

Brief Introduction of 3D FEM Stability Analysis of High Side Slope of the Intake of Longtan Hydropower Station

作　　者：戴谦训[1] 周海慧[1] 赵红敏[1] 

机构地区：[1]国家电力公司中南勘测设计研究院,湖南长沙410014

出　　处：《红水河》2002年第2期12-17,共6页Hongshui River

基　　金："八五"国家重点科技攻关项目 (85 -2 0 8-0 3 -0 1-0 1)

摘　　要：龙滩水电站进水口边坡最大坡高达 4 2 0m ,岩质高边坡稳定问题是设计必须解决的重大工程技术问题之一 ,通过多种数值分析方法确定了合理的开挖体型、恰当的加固支护措施以及施工程序 ,并对多种运行工况进行了模拟。介绍三维有限元稳定分析计算成果 ,计算表明 :边坡在施工期整体稳定 ;大坝建成后有利于边坡稳定 ;拟定的边坡加固支护措施及预应力锚索的加固作用明显 ,设计参数是可行的。s: As the max.height of the intake side slope of Longtan hydropower station is as high as 420 m,slope stability is one of the key technical problems in design.Various kinds of mumerical analysis mehtods are adopted to define a rational excavation outline and proper strengthening measures,as well as the construction process.Operations under different conditions are also simulated.The results of 3D FEM analysis show that the side will be stable during the dam construction and more stable after the dam is constructed;The strengthening roles of proposed strengthening measures and pre stressed anchor cable are obvious,proving the feasibility of the design data.

关 键 词：进水口 高边坡 三维有限元分析 稳定分析 龙滩水电站 

分 类 号：TV223.31[水利工程—水工结构工程]