土工基础

›› 2014, Vol. 28 ›› Issue (1): 53-56.

• 工程实录 • 上一篇    下一篇

h型抗滑桩工作性状有限元分析

王继晟，熊传祥   

  1. (福州大学环境资源学院，福州 350000)
  • 收稿日期:2013-03-12 出版日期:2014-02-20 发布日期:2014-02-27
  • 作者简介:王继晟（1988-），男，在读硕士，福州大学环境资源学院地质工程，研究方向为边坡工程。

Finite Element Analysis of htype Piles for Landslide Mitigations

WANG Jisheng, XIONG Chuangxiang   

  1.  (College of Environment and Resources, Fuzhou University, Fuzhou 350000)
  • Received:2013-03-12 Online:2014-02-20 Published:2014-02-27

摘要： 以宁德地区某一典型边坡支护工程为背景，运用有限元软件PLAXIS分析了h型抗滑桩的受力、变形特性和坡体稳定性，与单排桩和门架式双排桩支护结构进行对比分析。结果表明，主桩的弯矩和剪力均在冠梁连接处出现突变，主桩上桩体在受力性能表现为悬臂梁受力特性，下桩体和副桩共同作用表现为刚架结构受力特性，在变形性能上可以发挥门架式双排桩的特性。即h型抗滑桩兼有单排桩和门架式双排桩支护结构受力特性，同时具有侧向刚度大、侧向位移小的特点。

关键词: 边坡工程, h型抗滑桩, 门架式双排桩, 有限元

Abstract: This paper presents the PLAXIS numerical analysis results of htype piles used for landslide mitigation in Ningde area. The stress and strain in the piles and the stability of the slope are discussed in the paper. The results of the single row piles and the htype piles are compared. The results show that the bending moment and the shear force in the front row piles have a sudden change at the horizontal beam location. At the upper portion of htype piles, cantilever beam behavior is observed. A rigid frame performance is measured at the lower portion of this type of structure.

Key words: slope stability, h-type piles for landslide mitigation, double row pile frames, finite element analysis