【摘要】 随着计算机技术的发展,有限元强度折减法作为边坡稳定性分析的重要工具日益得到重视。介绍有限元强度折减法的应用和发展现状,以及强度折减法的原理。采用有限元强度折减法对网格密度、坡型、斜坡变形及破坏机理进行了研究,并与极限平衡法进行了对比。结果表明:有限元网格密度越大与极限平衡法越接近;不规则坡形会降低斜坡稳定性;采用强度折减法可以清楚地展示斜坡的破坏过程和机理,为预测和监控斜坡土体破坏提供了一条新的途径。更多还原

【Abstract】 With the development of computer technology,the finite element strength reduction method has been paid more and more attention as an important tool for slope stability analysis. In this paper,the application and development of finite element strength reduction method and the principle of strength reduction method are introduced first. Then the finite element strength reduction method are adopted to study the mesh density,slope shape,slope deformation and failure mechanism,and compared with the limit equilibrium method. The results show that the larger the mesh density of the finite element is,the closer the limit equilibrium method; irregular shape of slope will reduce the slope stability; this method can clearly show the failure process and mechanism,thus provides a new way for the prediction and monitoring of slope failure.更多还原