Deformation controlling criterion of effect on underground pipelines due to foundation pit excavation

ZHANG Chen-rong; YU Jian; HUANG Mao-song

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Deformation controlling criterion of effect on underground pipelines due to foundation pit excavation

更新时间：2026-06-25

- Deformation controlling criterion of effect on underground pipelines due to foundation pit excavation
- Vol. 33, Issue 7, (2012)
- 作者机构：
  
  1. 同济大学地下建筑与工程系,上海,200092
  2. 同济大学岩土及地下工程教育部重点实验室,上海,200092
- 作者简介：
- 基金信息：
- DOI：
  CLC： TV551
- Online First：13 July 2012，
  
  Published：2012
- 稿件说明：
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ZHANG Chen-rong, YU Jian, HUANG Mao-song. Deformation controlling criterion of effect on underground pipelines due to foundation pit excavation[J]. 2012, 33(7).
DOI：

ZHANG Chen-rong, YU Jian, HUANG Mao-song. Deformation controlling criterion of effect on underground pipelines due to foundation pit excavation[J]. 2012, 33(7). DOI：

摘要

基坑开挖会引起邻近区域地埋管线的附加受力和变形，甚至会引起管线的开裂破坏。基于位移控制理论，对板式支护体系由于基坑开挖而引起的周边自由土体位移场的分布规律进行了探讨，通过位移控制两阶段简化分析方法与位移控制有限元方法的对比，验证了简化方法的合理性。其次对最近修订的《上海市基坑工程技术规范》的基坑环境保护标准进行了探讨，利用简化方法通过算例计算以分析其仍需改进的方面，在此基础上，基于地下管线的自身承受能力，提出了基坑开挖对管线保护的变形控制标准，给出了为保证管线正常使用，基坑开挖深度与基坑允许侧向变形的关系，从而可以为基坑开挖环境影响评价标准的建设提供相应的理论依据。

Abstract

Lateral soil movement induced by foundation pit excavation might adversely affect any nearby underground pipelines even damage. Based on displacement-controlled theory

the development of free soil movement induced by excavation with retaining walls is studied. By comparison with displacement-controlled finite element method

the displacement-controlled two-stage simplified method is verified. Secondly

the environment protection criterion for foundation pit in current technical code for excavation engineering is discussed; and a new deformation controlling criterion for excavation based on the protection for adjacent pipelines is introduced，in which the relationship between the excavation depth and the allowed maximum lateral deformation of the retaining wall is given. It is hoped that the above work could give theoretical support for the construction of environment protection estimation system in foundation pit excavation.

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