STABILITY ANALYSIS OF REINFORCED SOIL STRUCTURES USING RIGID PLASTIC FINITE ELEMENT METHOD
STABILITY ANALYSIS OF REINFORCED SOIL STRUCTURES USING RIGID PLASTIC FINITE ELEMENT METHOD
复制标题
刚塑性有限元法加筋土结构稳定性分析
DOI：
10.3208/sandf1972.34.107
复制
发表时间：
1994
影响因子：
3.7
通讯作者：
G. Pokharel
中科院分区：
文献类型：
--
作者：
A. Asaoka;T. Kodaka;G. Pokharel
使用刚性塑性有限元方法研究了加筋材料和面板内力的发展及其对土体极限平衡状态的影响。这项研究同时计算增强材料中的轴向力以及承载能力/安全系数、速度矢量和应力分布。同时，土体加筋机理采用无长度变化条件进行建模，该条件应该是在极限平衡状态下对土体骨架塑性流动施加的一种约束条件。计算的安全系数表明，非膨胀材料中的加固比纯粘性土中的加固更有效。借助面板中产生的轴向力和剪切力，也可以清楚地解释面板刚度的影响。 （一个）
The development of internal forces in the reinforcement material as well as in the panel facing and their effect in the limiting equilibrium state of soil mass has been studied using rigid plastic finite element method. This research computes the axial force in reinforcing material as well as bearing capacity/factor of safety, velocity vectors and stress distribution simultaneously. Meanwhile, the mechanism of soil reinforcement is modeled by no length change condition that should be a kind of constraint condition imposed upon the plastic flow of soil skeleton at limiting equilibrium state. The computed factor of safety shows that the reinforcement is more effective in non-dilatant material than purely cohesive soil. The effect of rigidity of panel facing is also clearly explained with the help of the axial and shear force developed in the facing. (A)