土工基础

›› 2013, Vol. 27 ›› Issue (3): 89-93.

• 工程实录 • 上一篇    下一篇

土体侧向位移对周边复合地基力学性状影响研究

张景尧1，乔京生2，梁乐杰3
   

  1. （1.唐山曹妃甸发展投资集团有限公司，河北 唐山 063200；2.唐山学院，唐山 063000；3.河北联合大学，唐山 063000）
  • 收稿日期:2013-01-21 出版日期:2013-06-20 发布日期:2013-06-26
  • 作者简介:张景尧(1976-)，男，本科学历，高级工程师，研究方向为土木工程施工与管理。

Impact of the Soil Lateral Displacement on the Performance of the Adjacent Composite Ground

ZHANG Jingyao1, QIAO Jingsheng2, LIANG Lejie3   

  1. (1.Tangshan Caofeidian Infrastructure Development Investment Group Co., Ltd, Tangshan Hebei 063200;2.Tangshan University, Tangshan, Hebei 063000;3.Hebei United University, Tangshan,Hebei 063000)
  • Received:2013-01-21 Online:2013-06-20 Published:2013-06-26

摘要： 以唐山市南湖某工程基坑开挖为例，利用ANSYS有限元软件，建立了土体侧向位移对周边CFG桩复合地基力学性状的影响研究模型，分析了土体侧移时CFG桩复合地基的桩体、桩间土的水平位移、应力分布规律,提出了考虑开挖深度、开挖距离时桩体位移的计算公式。

关键词: 基坑开挖, 复合地基, 位移, 应力

Abstract: This paper presents the finite element analysis results on the impact of soil lateral displacement on the performance of the adjacent composite ground. The composite ground consists of cementflyashgravel (CFG) columns. Under the lateral deflection, the response of the column and the soil between columns as well as the stress distribution are analyzed. The formula of estimating the column lateral deflection by considering the excavation depth and distance from the CFG column is also proposed.

Key words: Deep Excavation, Composite Ground, Lateral Displacement, Stress in the Columns