Abstract This paper proposes a method for nonlinear analysis of a rigid pile under lateral load at the crest of clay slope. It is assumed that the ultimate soil resistance in front of the pile and behind the pile vary nonlinearly with depth. The modulus of horizontal subgrade reaction in front of the pile and behind the pile vary nonlinearly with the pile displacement at ground surface. The horizontal shear resistance at the pile base is considered and a bilinear relationship between the shear resistance and the displacement is used. Three distribution patterns of the soil resistance along a pile are also considered. Based on the force and moment equilibrium, the system equations are derived for a laterally loaded rigid pile in sloping ground with different soil resistance distribution patterns. The proposed method is validated by comparing its results with those from field tests, finite element analyses and a theoretical method. Finally, the method is used to analyze the effect of slope angle, pile-soil adhesion factor, height above ground surface of point of load application, pile diameter and embedded length on the lateral response of rigid piles.

中文翻译：

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粘土坡顶侧向荷载刚性桩的非线性分析

摘要 本文提出了一种粘土边坡坡顶侧向荷载下刚性桩的非线性分析方法。假设桩前和桩后的极限土阻力随深度呈非线性变化。桩前和桩后水平路基反力模量随桩身位移呈非线性变化。考虑桩基处的水平抗剪力，并使用抗剪力和位移之间的双线性关系。还考虑了沿桩土阻力的三种分布模式。基于力和力矩的平衡，推导了斜地侧向荷载刚性桩在不同土阻力分布模式下的系统方程。通过将其结果与现场试验、有限元分析和理论方法的结果进行比较，对所提出的方法进行了验证。最后，利用该方法分析了坡度角、桩土附着系数、受力点离地高度、桩径和埋入长度对刚性桩侧向响应的影响。