基于降强法的拱坝坝肩动力稳定分析研究  

Dynamic Stability Analysis of Arch Dam Abutment Based on Strength Reduction Method

作　　者：卢珊珊[1] 刘晓青[1] 李阳[1] 

机构地区：[1]河海大学水利水电工程学院,南京210098

出　　处：《三峡大学学报（自然科学版）》2011年第1期13-16,共4页Journal of China Three Gorges University：Natural Sciences

摘　　要：拱坝坝肩动力抗滑稳定分析,关系到拱坝建设是否安全可靠及经济合理,具有重大的意义.结合工程实例,以有限元理论为基础,利用拱坝抗震研究的静动组合算法,首先在静力工况下求解出坝体作用于坝肩滑体的作用力,在此基础上,保持与静力工况同样的材料折减系数,施加由反应谱法得到的地震荷载,进行降强稳定计算,得出动力安全系数,为工程建设提供了设计依据.Dynamic stability analysis of dam abutment is related to safety,reliablity and rationality,which gives significant consideration on arch dam development.This paper aims at an engineering project,using static and dynamic combined method,firstly to slove the static forces from dam body to dam abutment;then using strength reduction method combined with seismic load got from response spectrum with the same strength reduction factor to get the dynamic safety factor.The results provide design basis for the projects.

关 键 词：拱坝 坝肩 动力抗滑稳定 降强法 静动组合算法 

分 类 号：TV331[水利工程—水工结构工程] TV312