基于有限元理论的深路堑边坡稳定性分析

ANALYSIS ON STABILITY OF DEEP CUTTING SLOPE BASED ON FINITE ELEMENT THEORY

基于有限元理论,采用岩土工程应力应变分析软件SIGMA/W,分别对深路堑边坡开挖前后的应力应变特性进行数值模拟,结果表明:开挖前后边坡处于稳定状态。用极限平衡法所计算的稳定性安全系数进行验证,结果表现为一致性,边坡整体较稳定,开挖时坡顶可能发生浅表滑移。此结果为公路建设提供了依据。

Based on the finite element theory and the SIGMA/W software to analyze stress and strain in rock and soil engineering, the stress and strain characteristics of the deep cutting slope before and after excavation are numerically simulated in this paper. The results show that the slope is in a stable state before and after excavation. The stability safety factor calculated by the limit equilibrium method is used to verify, and the results are consistent： the slope is stable, and when excavated top of the slope may generate superficial slip. These results can provide the basis for the highway construction.