Rankine pseudo-static earth pressure for c–ϕ soils
Rankine pseudo-static earth pressure for c–ϕ soils
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DOI：
10.1016/j.mechrescom.2013.04.010
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发表时间：
2013-07
影响因子：
2.4
通讯作者：
Magued Iskander;Zhibo Chen;M. Omidvar;Ivan L. Guzman
中科院分区：
文献类型：
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作者：
Magued Iskander;Zhibo Chen;M. Omidvar;Ivan L. Guzman
本研究为刚性挡土墙支挡粘性摩阻力(c-φ)土的地震主动土压力计算提供了一种解析解。建议的公式基于共轭应力概念，不采用任何额外的假设，类似于Rankine的原始土压力公式。考虑了回填坡度和墙体倾斜的影响。此外，对于任何给定的拟静力加速度，都得到了土墙摩擦角随惯性力和问题几何形状变化的封闭形式解，而不是实际中通常采用的常值。根据所提出的公式计算的净地震活动力与以前发表的方法得到的结果是相当的。
This study provides an analytical solution for calculation of seismic active earth pressure on the back of a rigid wall retaining cohesional–frictional (c–φ) soil. The proposed formulation is based on the conjugate stress concept, without employing any additional assumptions, similar to Rankine's original earth pressure formulation. The effects of sloping backfill and wall inclination are considered. In addition, a closed form solution has been derived for the soil–wall friction angle as a function of inertial forces and problem geometry for any given pseudo-static acceleration, as opposed to the constant value commonly employed in practice. The net seismic active force calculated based on the proposed formulations is found to be comparable with those obtained from previously published methods.