弹性抗滑桩全桩内力计算的地基反力荷载法.pdf

第31 卷第1 期 岩 土 力 学 Vol.31 No. 1 2010 年1 月 Rock and Soil Mechanics Jan. 2010 文章编号：1000－7598 (2010) 01 －0299 －05 弹性抗滑桩全桩内力计算的地基反力荷载法 1 2 胡晓军 ，谭晓惠 （1. 合肥学院 建筑工程系，合肥 230022 ；2. 合肥工业大学 资源与环境工程学院，合肥 230009 ） 摘 要：地基系数法是弹性抗滑桩内力计算的常用方法，基于地基系数“m-k”法的基本原理，将抗滑桩作为整体进行内力分 析，提出了弹性抗滑桩全桩内力计算的反力荷载法，详细推导了有关计算公式；运用 Matlab 语言编写了全桩内力计算和图 形处理程序，可对全桩进行整体分析，不需要像传统方法那样以滑动面为界将抗滑桩分成受荷段和锚固段分别计算其内力； 与有限差分法相比，无需利用滑动面处的连续性条件进行迭代计算；计算实例表明，其方法与传统方法计算结果能很好吻合， 图形处理结果有利于抗滑桩结构设计，且程序运行时间短，可提高抗滑桩内力分析效率。 关 键 词：弹性抗滑桩；全桩内力；地基系数“m-k”法；反力荷载法 中图分类号：TU 473 文献标识码：A Foundation counter force loading method for calculating internal forces of a whole elastic anti-sliding pile 1 2 HU Xiao-jun ，TAN Xiao-hui （1. Department of Civil Engineering, Hefei University, Hefei 230022, China; 2. School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China ） Abstract: foundation coefficient method is a common method for calculating internal forces of a elastic anti-sliding pile. Based on coefficient “m-k” method, the counterforce load method is presented to calculate the internal forces of a whole pile. The corresponding formula are derived in detail. The calculation program of internal forces for a whole pile is designed with Matlab. The pile can be analyzed as complete entity. It is not necessary to divide the anti-slide pile into loading segment and anchoring segment by the sliding surface like the tradition methods. Compared with the finite difference method, the presented method does not make use of