摘要
针对传统边坡稳定安全系数设计法的不足,将抗剪强度参数c、φ作为随机变量,建立安全系数FS的极限状态方程,通过可靠度原理的验算点法建立土石坝边坡可靠度分析模型,编制C++程序,并结合河南省某水库续建工程大坝边坡稳定可靠度分析,探讨了参数变异性、相关性对边坡稳定可靠度的影响,论证了采用可靠度方法分析计算边坡稳定的实用性。
In view of the deficiency of traditional factors of the safety method in slope projects,in this paper,a limit state function is established based on Fs and reliability is analyzed by taking the effect factors c and φ as stochastic variables according to the criteria of reliability design,then a C＋＋ program is developed to apply this method with an earth dam in Henan.Meanwhile,the effect of the variability and association of c and φ on slope stability is analyzed.The results show that the reliability method is more intuitive and practicable in slope projects compared with the traditional factors of the safety method.
出处
《中国农村水利水电》
北大核心
2011年第8期146-148,150,共4页
China Rural Water and Hydropower
关键词
可靠度
边坡稳定
可靠指标
失事概率
reliability
slope stability
reliability index
failure probability
