中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2007, Vol. 26 ›› Issue (5): 103-107.

• • 上一篇    下一篇

下沉短桩越顶问题的有限元分析

唐芬   

  1. 重庆交通大学应用技术学院路桥系,重庆 400042
  • 收稿日期:2006-07-06 修回日期:2006-09-18 出版日期:2007-10-15 发布日期:2015-01-22
  • 作者简介:唐芬(1968—),女,重庆合川人,博士生,主要从事岩土与结构相互作用的研究与教学工作.E-mail:tangfen1968@ Yahoo.com.cn.

FEM Analysis of Sliding Face Crossing over Sinking Pile

TANG Fen   

  1. Department of Road&Bridge Engineering,Applied&Technical School,Chongqing Jiaotong University,Chongqing 400042,China
  • Received:2006-07-06 Revised:2006-09-18 Online:2007-10-15 Published:2015-01-22

摘要: 下埋短桩是一种介于抗滑键与全长桩的一种特殊的抗滑桩,在合适的位置上采用将桩顶下沉设置较短的桩就 可使边坡达到设计要求的安全系数,而桩身内力较全长桩有所降低,因此从经济角度与受力方面来看,具有良好的 应用前景,但是滑体有可能沿桩顶失稳剪出,导致边坡工程失败,在应用上受到了很大的制约.现以云阳县太公沱至 余家包库岸大咀段库岸滑坡工程为例,对用下埋短桩治理后是否越过抗滑短桩桩顶问题,采用了有限元强度折减法 验证.

关键词: 沉短桩, 越顶, 有限元强度折减法

Abstract: The short anti-slide pile is one kind of special pile situated between the anti-slide tie and the long pile.On the suit- able position,sink piles may establish the safety coeficient which the design requests.Comparing with long pile,its internal force has lowered;therefore sinking pile has good applied foreground in the economical and experiencing force aspects.But the sliding body may follow crossing over pile and lose steady shear probably.the engineering ma y fail.The application would b_e greatly restricted then.Taking the land slide in Dazu Bank in Yunyang County betwen Taigongtuo and Yu Jiabao Bankas an ex- ample.the Strength Reduction FEM was applied to test whether the sliding face crossed over the pile with the short sinking piles.

Key words: short sinking pile, crossing over pile crest, Strength Reduction Finite Element Method

中图分类号: