摘要
从可靠度指标的几何意义出发,分析了可靠度分析的优化算法及相应的计算程序和过程,在此基础上针对边坡稳定性分析的剩余推力法,通过与可靠度分析的复形优化算法有机结合,建立了基于剩余推力法和复形优化算法的边坡可靠度分析模型,研制了相应的计算程序,并对某黄土高陡边坡稳定性可靠度进行了实例分析。结果表明,基于剩余推力法和复形优化算法求得的黄土边坡稳定性可靠度指标较JC法小7%,使得实际工程偏于安全。
Based on the geometrical meaning of reliability index,the complex optimization method of reliability analysis and relative algorithm process are proposed. With the integration of complex optimization method and residual thrust method of slope stability analysis, the reliability analysis optimization model of slope stability and relative program are developed. The reliability example about high loess slope is provided to demonstrate the efficiency of the reliability model based complex optimization and residual thrust method. The result shows that the reliability index by complex optimization is less about 7 % than that by JC method, which is more safe to the practice engineering. 3 tabs, 5 figs, 12 refs.
出处
《长安大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2009年第5期47-53,共7页
Journal of Chang’an University(Natural Science Edition)
基金
国家自然科学基金项目(40872185)
关键词
岩土工程
边坡稳定性
剩余推力法
复形优化
黄土边坡
可靠度
geotechnieal engineering
slope stability
residual thrust method
complex tion
loess slope
reliability
