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A Computational Method of Active Earth Pressure from Finite Soil Body

机译：有限土体主动土压力的计算方法

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摘要

Nowadays, Coulomb and Rankine earth pressure theories have been widely applied to solve the earth pressure on a retaining structure. However, both of the theories established on the basis of the semi-infinite space assumption are not suitable for calculating the earth pressure from finite soil body. Therefore, this paper focuses on a theoretical study about the active earth pressure from finite soil body. Firstly, a common calculation model of finite soil body is established according to the results of previous studies. And then, based on Coulomb's theory and the wedge element method, an analytical solution of the unit active earth pressure from finite soil body is deduced without an assumption of its linear distribution in advance. Meanwhile, formulas of the active earth pressure strength coefficient and the application point of the resultant force are also deduced. Finally, the influence of parameters such as the frictional angle between the retaining wall back and backfill, slope angle of backfill, dip angle of the retaining wall back, the frictional angle between backfill and rock slope, and uniformly applied load on the backfill surface on the distribution of the unit active earth pressure and the application point of the resultant force is analyzed in detail.
机译：如今，库仑和兰金土压力理论已被广泛地用于解决挡土结构上的土压力。但是，基于半无限空间假设建立的两种理论均不适用于计算有限土体的土压力。因此，本文着重于有限土体主动土压力的理论研究。首先，根据以往的研究成果，建立了有限土体通用计算模型。然后，基于库仑理论和楔形单元法，推导了有限土体单位有效土压力的解析解，而无需事先假设其线性分布。同时，推导了主动土压力强度系数和合力作用点的公式。最终，这些参数的影响如挡土墙与回填之间的摩擦角，回填的倾斜角，挡土墙的倾角，回填与岩石坡度之间的摩擦角以及均匀施加在回填表面上的载荷详细分析了单位有效土压力的分布和合力的作用点。

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  • 来源
    《Mathematical Problems in Engineering》 |2018年第6期|9892376.1-9892376.7|共7页
  • 作者

    Tang Yi; Chen Jiangong;

  • 作者单位

    Chongqing Univ, Dept Civil Engn, Chongqing 400045, Peoples R China;

    Chongqing Univ, Dept Civil Engn, Chongqing 400045, Peoples R China;

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