双强度折减法在平面滑动岩质边坡中的应用  

Application of dual strength reduction factors in planar failure rock slope

作　　者：程小龙[1] 张绪进 朱擘[1] 

机构地区：[1]重庆交通大学河海学院,重庆400074 [2]西南水运工程科学研究所,重庆400074

出　　处：《水运工程》2013年第3期72-76,共5页Port & Waterway Engineering

摘　　要：主要研究均质边坡岩体在抗剪不足的情况下的平面滑动状态和规律。通过假定破坏面与内摩擦角之间的关系,来近似求解安全系数。考虑到双强度极限平衡条件,采用不同的折减方式和折减系数,并且与有限元强度折减对比分析,阐明边坡破坏各物理量之间的联系,然后找出确定双强度折减系数的主要参考依据,从而为该领域的进一步研究提供参考性意见。Plane sliding is a simple form of the rock slope sliding.Insufficient homogeneous rock slope due to shear plane sliding is the major object of study.By assuming the iteration of the relationship between the failure surface and the angle of internal friction,we obtain the safety factor.Considering the limit equilibrium,using different reduction methods and reduction factors with are compared with those of the finite element method,we obtain the relationship among all physical quantities,and find the main reference for determining the double-strength reduction factors,which may serve as reference for further study of the field.

关 键 词：双强度折减 平面滑动 破裂角 安全系数 

分 类 号：TU449[建筑科学—岩土工程]