Soil vertical deformation induced by ground penetrating shield tunnel construction

WEI Gang; JIANG Xin; ZHANG Xin-hai; JIN Rui

doi:10.16285/j.rsm.2016.0529

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Soil vertical deformation induced by ground penetrating shield tunnel construction

更新时间：2026-06-25

- Soil vertical deformation induced by ground penetrating shield tunnel construction
- Vol. 39, Issue 3, Pages: 993-1001(2018)
- 作者机构：
  
  1. 浙江大学城市学院土木工程系,浙江,杭州,310015
  2. 浙江大学建筑工程学院,浙江,杭州,310058
  3. 浙江省建工集团有限责任公司,浙江,杭州,310012
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2016.0529
  CLC： TU432
- Online First：06 June 2018，
  
  Published：2018
- 稿件说明：
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WEI Gang, JIANG Xin, ZHANG Xin-hai, et al. Soil vertical deformation induced by ground penetrating shield tunnel construction[J]. 2018, 39(3): 993-1001.
DOI：

WEI Gang, JIANG Xin, ZHANG Xin-hai, et al. Soil vertical deformation induced by ground penetrating shield tunnel construction[J]. 2018, 39(3): 993-1001. DOI： 10.16285/j.rsm.2016.0529.

摘要

对地面出入式盾构法隧道施工引起的土体垂直变形计算方法进行研究。考虑盾构轴线与水平面的夹角（即隧道埋深变化），对林存刚公式进行修正，结合正面附加推力、盾壳摩擦力、附加注浆压力和土体损失的共同作用，提出全新的土体垂直变形计算公式。算例分析结果表明：在隧道埋深较浅工况下，新方法计算结果与林存刚公式的计算结果差异较大，新方法计算得到的开挖面前方地面隆起和后方地面沉降均较大；盾构上仰掘进时，随着增大，由正面附加推力、盾壳摩擦力及土体损失引起的纵向土体垂直变形曲线呈上移趋势，由附加注浆压力引起的纵向土体垂直变形曲线则呈下移趋势；地面沉降最大值变小，但地面横向沉降槽范围逐渐变大。

Abstract

This paper is to investigate the calculation methods for the soil vertical deformation induced by constructing the ground penetrating shield tunnel. Lin’s formula was also corrected by considering the included angle ? between the axis of the tunnel and the horizontal plane (namely the variation of the buried depth of tunnel). A new formula of soil vertical deformation was derived by combining with bulkhead additive thrust

the friction force between shield and soil

additional grouting force and soil loss. Through analysing the examples

it was found that the results obtained from the new method were entirely different from those of Lin’s formula in a shallowly embedded tunnel. Especially

the results of the ground uplift before the excavation face and the settlement after the excavation face were both larger by the new method. When the shield tunnel excavated upward with the increase of ?

an upwards trend could be seen from the vertical deformation curve of longitudinal soil

which was induced by bulkhead additive thrust

friction force and soil loss. While in the same situation

a downward trend was found from the deformation curve of soil

which was induced by additional grouting pressure. In addition

the maximum value of the surface settlement reduced

whereas the range of the transverse surface settlement trough increased.

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Related Institution

Key Laboratory of Coast Civil Structure Safety of Ministry of Education, Tianjin University

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