锚索抗滑桩设计拉力及锁定值的规划求解研究

Study on tensile force and its locked value of pre-stressed anchor cables designed for piles by programming solver of Excel

摘要: 预应力锚索抗滑桩桩头设计拉力及锁定值的确定是锚索抗滑桩结构设计计算的关键技术问题之一,本文基于采用线弹性Winkle地基梁有限差分法的抗滑桩结构分析计算软件"Analypile",对全桩整体采用有限差分法求解其内力,避免了将桩身分解为受荷段和锚固段及利用滑面处连续条件求解的复杂过程,该方法对滑坡推力及地基系数取值,可依据实际情况假定为广义形式来模拟土体对抗滑桩的作用工况,能很好地求解预应力锚索作用于抗滑桩或桩身设多道锚索工况下的锚索拉力值,并利用Excel规划求解工具合理选定工程优化目标,建立综合约束条件及其规划模型,提出了一种新的有关桩头预应力锚索设计拉力及锁定值的确定原则和方法。

Abstract: To design the final tensile force and its initial value of anchor cables was one of the key technical problems in the practice of anti-slide piles with pre-stressed anchor cables.The principles and skills to determine the tensile force and its locked value of pre-stressed anchor cables designed for piles were worked out based on Analypile software which uses finite difference method of linear-elastic foundation beam of Winkle model for analyzing on anti-slide piles.The traditional method gained ...