【摘要】 边坡开挖会影响自然斜坡内部应力场的原始状态.论文基于大型有限元软件,对具有代表性物理力学特征的岩质边坡进行了开挖效应的有限元仿真.通过对比开挖前后边坡内部的应力场特征,发现:在影响边坡稳定的指标性应力中,边坡上部的水平应力受开挖影响较大;在成坡坡脚附近,指向坡体外的剪应力显著增加.通过对水平和倾斜路径的应力追踪,提出了开挖效应对边坡内部应力场的影响程度和范围.更多还原

【Abstract】 Slope excavation will influence the original stress field inside the natural slope.Based on the large finite element software,the excavation effect on rock slope with the representative physical and mechanical characteristic is analyzed in this paper.Through contrasting the characteristics of stress field inside the slope before and after the excavation,the results show that the horizontal stress upside the slope and the shear stress pointing to the outside slope near the foot change clearly.Through tracing the change of the stress on the horizontal and slantwise paths,the influence and scopes of the excavation effect on the inside stress field of the slope are put forward.更多还原