地震作用下重力坝深层抗滑稳定体系可靠度分析  

THE SYSTEM RELIABILITY ANALYSIS OF DEEP ANTI SLIDING STABILITY OF GRAVITY DAMS SUBJECTED TO EARTHQUAKE

作　　者：江胜华[1] 侯建国[1] 何英明[1] 

机构地区：[1]武汉大学土木建筑工程学院,武汉430072

出　　处：《工业建筑》2010年第S1期632-634,698,共4页Industrial Construction

摘　　要：基于拟静力法和等安全系数法,分析了地震作用下重力坝的双斜面深层抗滑稳定。由于深层抗滑稳定的功能函数非线性程度较高,为避免JC法存在的收敛性问题,采用改进的Monte Carlo法和等效线性化分析重力坝深层抗滑稳定的体系可靠度,结果与安全系数法一致,表明应用可靠度理论进行重力坝深层抗滑稳定分析是可行并有效的。Wedge stability against deep siliding of gravity dams subjected to earthquake is discussed based on the pseudo-static mehod and the equal safety coefficient method.Because of high nonlinear degree of performance function,the improved Monte Carlo and equivalent linearization method are used to analyze the system reliability of anti-sliding stability at deep foundation of gravity dams to avoid convergence problem in first order second moment method.The results show the agreement of the reliability theory and safety factor method,which proves the feasibility of the reliability theory's application in the anaysis of anti-sliding stability at deep foundation of gravity dams.

关 键 词：重力坝 地震 深层抗滑稳定 可靠度 

分 类 号：TV642.3[水利工程—水利水电工程]