格栅加筋边坡稳定性的塑性极限分析

Limit Analysis of Plasticity for Stability of Slope Reinforced by Uniformly-Distributed Geogrid

在塑性极限分析的基础上,通过采用等效粘结力来考虑由于加筋而引起的土体局部强度增强的效应,确定了筋材强度与边坡的几何参数及土的强度指标的相关性,探讨了最小筋材长度与土的强度特性和边坡几何特征参数的关系。

Based on fundamental theory of limit analysis of plasticity, the local enhancement effect of soil strength induced by reinforcements is taken into account by the equivalent cohesion which take replace of the additional effect of reinforcements on soil in the limit-equilibrium state, the upper-bound limit analysis of plasticity is performed to define the minimum tensile strength of geogrids to mobilized for stability.