岩土力学Issue(3)：723-728,6.
临近地下室外墙影响下的考虑土拱效应的挡土墙主动土压力研究
Research on active earth pressure behind retaining wall adjacent to existing basements exterior wall considering soil arching effects
赵琦 1朱建明1
作者信息
- 1. 北方工业大学 建筑工程学院，北京 100144
- 折叠
摘要
Abstract
It was necessary to use the adaptive theory for computing the distribution of earth pressure behind the wall adjacent to existing basements and the height of total earth pressure, because it was inconsistent with the Rankine’s theory which was based on the semi-infinite half space state. It could be divided two parts of the deformation trends by considering soil arching effect. The upper soil parts slide down alongside the wall which is same with Terzaghi’s tarp door experiment. Also, the lower soil parts slide down as a triangle the soil wedge. So it is reliable that the earth pressure behind the retaining wall adjacent to existing basement should be analyzed based on the above deformation trends of the upper part and lower part. Assuming the arch in soil arching as circular, the lateral coefficients of earth pressure of retaining wall about both upper and lower parts are derived from the principal stress rotation. And the formula of distribution of lateral active earth pressure is given based on the soil static wedge equilibrium. Expressions of the total earth pressure and the height of acting point are derived by translation of coordinates. According to the examples, the results by proposed method are close to the simulation results. So it has a significant meaning for active earth pressure theory which considering the soil arching effect.关键词
挡土墙/临近建筑物/土拱效应/主动土压力Key words
retaining wall/adjacent buildings/soil arching effect/active earth pressure分类
建筑与水利引用本文复制引用
赵琦,朱建明..临近地下室外墙影响下的考虑土拱效应的挡土墙主动土压力研究[J].岩土力学,2014,(3):723-728,6.
