基础约束对拱坝应力影响规律的研究  

Study of the law of foundation restraint impact on arch dam stress

作　　者：刘健[1] 谢新生[1] 王旭[1] 

机构地区：[1]四川大学水利水电学院,成都610065

出　　处：《西北水电》2009年第1期58-60,共3页Northwest Hydropower

摘　　要：为了研究不同基础约束对拱坝应力的影响,运用有限元方法模拟分析了基础变形模量Er与坝体变形模量Ec的比值(Er/Ec)分别为0.25,0.5,1和2时的200 m拱坝应力。结果表明Er/Ec越大,坝体主要部位的拉、压应力区的数值也越大。In order to study the impact of different foundation restraints on arch dam stress, finite element method is used in this paper to analyze the stress of a 200m - high arch dam at Er/Ec ratio （ the ratio of foundation deformation modulus to dam deformation modulus） of 0.25, O. 5 and 1, 2 respectively. The results show that the greater the Er/Ec ratio is, the greater the tensile and compressive stress is at main sections of the dam.

关 键 词：拱坝 地基约束 有限元法 应力 

分 类 号：TV642.4[水利工程—水利水电工程]