基于可靠度理论的赤平极射投影动态分析  

Kinematic analysis of stereographic projection based on reliability theory

作　　者：冯登[1,2] 王俊杰[1,2] 袁智洪 

机构地区：[1]重庆交通大学国家内河航道整治工程技术研究中心,重庆400074 [2]重庆交通大学水利水运工程教育部重点实验室,重庆400074

出　　处：《中国科技论文》2017年第1期72-75,79,共5页China Sciencepaper

基　　金："十二五"国家科技支撑计划重点项目(2015BAK09B01);重庆市基础与前沿研究计划项目(cstc2015jcyiBX0139)

摘　　要：根据Hoek等提出的楔形体滑移理论,利用赤平极射投影方法,分别将内摩擦角和黏聚力作为单一变量,对楔形体稳定性进行动态分析,得到楔形体破坏的主控结构面。将赤平极射投影和一次二阶矩法相结合,对边坡进行可靠度分析,将内摩擦角和黏聚力的方差作为单一变量,分析参数的方差对可靠性指标的影响,进而分析这些参数的变化对边坡稳定性的影响。研究结果表明,在稳定性分析计算中,赤平极射投影的动态分析符合实际施工要求,对工程实践具有指导意义。By using the stereographic projection method based on the wedge theory introduced by Hoek etc.,the kinematic analysis of wedge was carried out by considering the friction angle and cohesive force as a single variable.The dominant discontinuities of wedge were obtained.With the stereographic projection and one order second moment method,yhe reliability analysis of rock slope was carried out byconsidering the variance of friction angle and cohesive force as a single variable.The result shows the kinematic analysis of stereographic projection was conformed to the requirements of the actual construction.And it can provide some guidance for engineering practices.

关 键 词：稳定性分析 岩质边坡 赤平极射投影 一次二阶矩法 

分 类 号：TU457[建筑科学—岩土工程]