Analysis of additional stresses of soil disturbance induced by propulsion of double-O-tube shield

SUN Tong-li; ZHANG Qing-he; WEI Liang-wen; WU Min-hui; ZHANG Dong-yin

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Analysis of additional stresses of soil disturbance induced by propulsion of double-O-tube shield

更新时间：2026-06-25

- Analysis of additional stresses of soil disturbance induced by propulsion of double-O-tube shield
- Vol. 29, Issue 8, (2008)
- 作者机构：
  
  1. 同济大学地下建筑与工程系,上海,200092
  2. 江苏省交通规划设计院,南京,210005
  3. 深圳市建设工程质量监督总站,深圳,518032
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU443
- Online First：02 August 2013，
  
  Published：2008
- 稿件说明：
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SUN Tong-li, ZHANG Qing-he, WEI Liang-wen, et al. Analysis of additional stresses of soil disturbance induced by propulsion of double-O-tube shield[J]. 2008, 29(8).
DOI：

SUN Tong-li, ZHANG Qing-he, WEI Liang-wen, et al. Analysis of additional stresses of soil disturbance induced by propulsion of double-O-tube shield[J]. 2008, 29(8). DOI：

摘要

应用弹性力学Mindlin解建立了双圆盾构掘进引起土体附加应力积分表达式。运用复化Gauss-Legendre数值积分公式，定量分析了双圆盾构正面推力、盾构与土体侧摩阻力对土体扰动的程度及范围。分析表明，双圆盾构掘进对土体扰动具有区域性特征，盾构机上部表现为背土挤土，侧面则表现为挤压剪切效应，并且侧摩阻力对土体的扰动程度更大。所得结论对于双圆盾构穿越临近地下管线或建筑物桩基的施工提供理论依据。

Abstract

The additional stresses induced by propulsion of double-o-tube(DOT) shield are calculated by means of the Mindlin’s equations in elasticity. The characteristics of additional stresses and the extent of soil disturbance of DOT shield construction are analyzed with compound Gauss-Legendre integral arithmetic. In the analysis

the excess earth pressure and the lateral friction between shield skin with surrounding soil are taken into account. The outcome makes clear that the soil disturbance of DOT shield has the regional characters

such as drag and extrusion above the sea-gulled segment and extrusion and friction lateral of the shield skin. The lateral friction has more effect on soil disturbance than the excess earth pressure. The conclusion can be as reference for the traversing construction nearby the underground pipeline and the building foundation for DOT shield.

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