Spatial mutual deformation analysis method for row of piles of deep excavation

LAI Guan-zhou; FANG Ying-guang; SHI Hong-yan

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Spatial mutual deformation analysis method for row of piles of deep excavation

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- Spatial mutual deformation analysis method for row of piles of deep excavation
- Vol. 28, Issue 8, (2007)
- 作者机构：
  
  1. 广东交通实业投资公司,广州,510101
  2. 华南理工大学,广州,510641
  3. 广东工业大学,广州,510640
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU473
- Online First：15 October 2013，
  
  Published：2007
- 稿件说明：
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LAI Guan-zhou, FANG Ying-guang, SHI Hong-yan. Spatial mutual deformation analysis method for row of piles of deep excavation[J]. 2007, 28(8).
DOI：

LAI Guan-zhou, FANG Ying-guang, SHI Hong-yan. Spatial mutual deformation analysis method for row of piles of deep excavation[J]. 2007, 28(8). DOI：

摘要

考虑深基坑支护结构中圈梁、腰梁、排桩、支撑和地基的空间协同作用，建立了基于共同变形理论的有限元三维分析模型，明确了土压力及地基等效刚度的计算方法。结合工程实例，分析了带圈梁的排桩支护结构的内力、位移及土压力分布规律，并与二维平面分析结果进行了比较，验证了计算模型的合理性和三维分析的必要性。

Abstract

Considering spatial mutual interaction and deformations among ring beam

middle beams

row of piles

braces and foundation soil in the deep excavation structure

the 3-D finite element analysis model is set up based on the mutual deformation theory; and specific method is settled to calculate the equivalent foundation stiffness and earth pressure. By analyzing an excavation case

the distribution rules of the inner forces

the deformations and earth pressures in the row of piles structure with ring beam are analyzed; and the results calculated with 3-D model and 2-D model are compared. Therefore

the reasonableness of calculating model and the necessity of 3-D analysis are verified.

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