狭窄河谷地形对200m级高面板坝变形和应力的影响研究  

Influence of narrow-valley formation on the mechanics property of the 200m high CFRD

作　　者：朱晟[1] 欧红光[2] 殷彦高[2] 

机构地区：[1]河海大学水利水电工程学院,江苏南京210098 [2]中南勘测设计研究院,湖南长沙410014

出　　处：《水力发电学报》2005年第4期73-77,共5页Journal of Hydroelectric Engineering

摘　　要：目前,世界上尚无有关建造在狭窄河谷上的200m以上高面板坝的报道。本文利用三维非线性有限元分析方法,结合一座拟建中的河谷宽高比仅为1.88的225m高的面板堆石坝,对坝体的变形和应力进行数值计算,对狭窄河谷上建设的高面板坝可能存在的问题进行了探讨。分析了狭窄河谷的拱效应对大坝的变形和应力的影响,建议了相应的工程措施。At present, it is not reported that constructed CFRD is higher than 200m in narrow valley. In this paper, combining with the designed 225m high CFRD with the rate of valley width to height being 1.88, comprehensive numerical analysis is performed to predict the deformation and stress characteristics during construction and reservoir fulfilling by three dimensions nonlinear FEM. Prospective problems are discussed in high CFRD built in narrow valley, the arching effect on dam＇s deformation and stress is analyzed and the corresponding engineering measure is proposed

关 键 词：水工结构 变形与应力 有限单元法 面板坝 狭窄河谷的拱效应 高面板坝 坝变形 河谷 狭窄 应力 

分 类 号：TV-27[水利工程] TV698.11