文档介绍：第 24 卷第 4 期岩石力学与工程学报
2005 年 2 月 Chinese Journal of Rock Mechanics and Engineering Feb.,2005
桩基码头岸坡整体稳定分析的修正
周锡礽 1,王乐芹 1,王晖 1,朱福明 2
(1. 天津大学建筑工程学院,天津 300072;2. 天津港务局,天津 300456)
摘要:针对桩基码头的岸坡稳定问题,在考虑了桩本身的特性和桩土相互作用的条件下,提出一种修正基桩抗滑
效应的桩基码头岸坡整体稳定的计算方法,同时,采用了遗传算法确定最危险滑动面及其对应的最小安全系数,
由此对现有规范中的相关规定提出了修正。该方法考虑圆弧滑动面,采用简化 Bishop 法计算岸坡稳定的安全系数,
并在其中考虑基桩的抗滑作用;采用一种基于极限分析理论的方法确定滑动面以上的土体对桩的侧推力,对不同
的圆弧位置,由各基桩的埋置深度及其与岸坡具有不同的安全系数确定其所能发挥的最大抗滑力;通过相关工程
算例的计算与比较,表明本方法简便、快捷,且结果良好。
关键词:土力学;桩基码头;岸坡整体稳定;桩土相互作用;简化 Bishop 法;遗传算法
中图分类号:TP 183,TU 432 文献标识码:A 文章编号:1000–6915(2005)04–0681–06
MODIFICATIONS TO GLOBAL STABILITY ANALYSIS ON SLOPE OF
PILED FOUNDATION WHARF
ZHOU Xi-reng1,WANG Le-qin1,WANG hui1,ZHU Fu-ming2
(1. School of Construction,Tianjin University,Tianjin 300072,China;
2. Tianjin Port Office,Tianjin 300456,China)
Abstract:A methodology is proposed for the global stability analysis on slope of piled foundation wharf,in which
the interaction of piles and soil is considered,and some modifications to the existing design codes are presented.
ic algorithm is employed in searching for the potential circular slip surface that has minimum safety factor.
The circular slip surface is assumed and Bishop simplified method incorporating the stabilization effect of piles is
adopted to calculate the safety factor of slope. An ex