›› 2011, Vol. 25 ›› Issue (2): 72-.

• 工程实录 • 上一篇    下一篇

支护结构嵌固深度的计算分析

傅志峰1, 吴晓云1, 刘 芳1, 李 杰2   

  1. (1.武汉地铁集团有限公司,武汉 430030;
    2.华中科技大学土木工程与力学学院,武汉 430074)
  • 收稿日期:2010-05-16 出版日期:2011-04-20 发布日期:2012-01-13
  • 作者简介:傅志峰,1977年7月出生,博士,高级工程师,从事地铁工程施工安全管理工作。

Embedded depth Calculation of Retaining Structure

FU  Zhi  feng1, WU  Xiao  yun1, LIU  Fang1, LI  Jie2
   

  1. (1. Wuhan Metro Group Co. Ltd, Wuhan 430030; 
    2. School of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan 430074, China)
  • Received:2010-05-16 Online:2011-04-20 Published:2012-01-13

摘要: 基坑支护结构的嵌固深度既是基坑坑底抗隆起稳定性的需要,也是保证支护结构具有足够的抗倾覆稳定性的需要。基于规范设计方法,分析了弹性法、圆弧滑动法、考虑横撑力的圆弧滑动法和规范经验法等方法确定嵌固深度的差异;从考虑地基土性能的离散性出发,给出了嵌固深度的取值范围。

关键词: 嵌固深度, 地基土的离散性, 弹性法, 考虑横撑力的圆弧滑动法, 规范法

Abstract: The embedded depth of retaining structure of pit satisfies not only the anti-heaving stability of pit bottom but also anti-overturning stability of retaining structure. Based on codes, the calculating difference of embedded depth was analyzed with the some methods including elastic method, arc-slippage method, arc-slippage method considered the horizontal brace force and empirical law of the code. Then the acceptable range of embedded depth was proposed considered the discreteness of soil mechanical property.