下滑力分布模式对抗滑桩受力特性的影响分析

Effect of Sliding Force Distribution Pattern on Mechanical Characteristics of Slide-resistant Pile

为了研究下滑力分布模式不同对抗滑桩内力和位移的影响,基于桩体平衡微分方程和差分解法编制的抗滑桩计算程序,分析了下滑力分别为三角形、矩形、梯形分布模式下对抗滑桩的受力特性的影响。计算结果表明:三角形分布引起的桩体位移和内力远小于矩形分布的情形,梯形分布则介于三角形与矩形分布之间。

In order to study the impact of sliding force distribution pattern on the internal force and displacement of slide-resistant pile, the calculation procedure is compiled based on pile equilibrium differential equation and difference solution and the impact of sliding force on the mechanical characteristics of slideresistant pile under triangular, rectangular and trapezoidal distribution patterns is analyzed. The results show that the pile displacement and internal force caused by triangular distribution is far smaller than that caused by rectangular distribution and that caused by trapezoidal distribution is between the above two.