【摘要】 在平面应变条件下,采用基于弹塑性有限元应力应变分析的滑面应力分析法对重力式挡土墙结构的稳定性及主动土压力进行研究,该法可直接评判挡土墙结构整体的抗滑稳定。通过与传统土压力理论比较分析,发现挡土墙后土体达到临界状态时,利用该法得到的滑裂面的安全系数、破裂角和主动土压力幅值与理论解有较好的一致性,表明本文方法可行、可靠。随后对填土性质参数进行了敏感性分析,并运用该法对挡土墙结构进行了深层抗滑稳定安全验算,可为重力式挡土墙结构安全设计提供可靠依据和技术支撑。更多还原

【Abstract】 Under the condition of plane strain,slip surface stress method was applied to evaluate the stability against sliding of the gravity retaining wall and earth pressure.Compared with classical earth pressure theories,the results show that safety factor,angle of rupture and earth pressure are quite consistent with the theoretical solution when the filling soil reaches critical state.Then the effect of different soil parameter on the stability of gravity retaining wall is analyzed in this paper.Finally an example of the deep sliding stability of integral construction is given.更多还原