弹性抗滑桩内力计算的改进与优化

在滑坡治理工程中,抗滑桩是一种重要的支挡加固措施,在确定滑坡推力后,如何准确、合理地计算抗滑桩内力对滑坡治理工程的成败常常有着决定性的作用;根据滑动面以上桩身滑坡推力的分布形式、桩前剩余抗力的分布情况以及桩身边界条件,将"m"法和"K"法相结合,推导出全桩内力有限差分计算公式;所提出的计算方法思路简明、计算精度高,在实际滑坡治理工程中得到了有效的应用,也可应用于其他横向受力桩的分析与计算。

Improvement and Optimization on Internal Force Calculation of Elastic Anti-sliding Pile

Anti-sliding pile is an important retaining and reinforcing measure for landslide control, thus how to calculate the pile’s internal force correctly and rationally is crucial for the engineering after determining the landslide thrust. According to the distribution pattern of the thrust applied on the pile above the sliding plane, the distribution of residual resistance before the pile, and the boundary condition of pile, the finite difference based formula for calculation of the internal force of piles was derived by combining the “m” method and “K” method. The calculation method proposed is of clear resolution and high accuracy, thus applied to practical landslide control engineering and to analysis and calculation of other laterally loaded piles.