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在综合分析现有水平荷载作用下桩基分析方法的基础上,建立了考虑桩侧土体受力状态的斜坡刚性桩力学模型;根据极限平衡原理,建立横向荷载作用下斜坡刚性桩弯矩和应力平衡方程;引入考虑斜坡影响的p y曲线方法,提出了综合考虑桩侧土体极限承载力与水平抗力系数沿深度呈线性增加的侧向极限承载力与土体抗力承载力系数计算方法,同时,将该方法应用于计算实例,通过与已有有限元和理论计算方法对比分析,计算结果验证了本文方法的合理性与可行性;并利用该方法,分析了斜坡坡角、桩土接触面系数以及地基水平抗力系数对斜坡刚性桩承载特性的影响因素。分析表明:斜坡的坡角、桩土接触面系数对侧向荷载作用下斜坡刚性桩的荷载位移曲线影响明显,而桩侧土的抗力系数对侧向荷载作用下斜坡刚性桩的荷载位移曲线影响不明显。
Based on the comprehensive analysis of pile foundation analysis method under existing horizontal load, the mechanical model of rigid rigid pile considering the behavior of soil under pile side is established. According to the principle of limit equilibrium, the moment of rigid pile under lateral load and Stress balance equation is introduced in this paper. By introducing the py curve method which considers slope influence, a calculation method of lateral ultimate bearing capacity and bearing capacity coefficient of soil resistance considering the ultimate bearing capacity and horizontal resistance coefficient of pile side soil along the depth is proposed. , The method is applied to the calculation example. Compared with the existing finite element method and the theoretical calculation method, the calculation results verify the rationality and feasibility of the method proposed in this paper. By using this method, the slope angle, pile-soil contact surface Factors Affecting Bearing Properties of Rigid Stiffened Piles under Horizontal Stiffness Coefficient. The analysis shows that the slope angle and the coefficient of contact surface between pile and soil have a significant influence on the load-displacement curve of inclined pile under lateral load, while the resistance coefficient of pile side affects the load-displacement curve of inclined pile under lateral load Not obvious.