Model test and in-situ monitoring of double-arch tunnel with integrated middle wall

QIU Chang-lin; LIU Bin; HE Lin-sheng; FENG Shou-zhong

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Model test and in-situ monitoring of double-arch tunnel with integrated middle wall

更新时间：2026-06-25

- Model test and in-situ monitoring of double-arch tunnel with integrated middle wall
- Vol. 33, Issue 9, (2012)
- 作者机构：
  
  1. 天津大学建工学院,天津,300072
  2. 重庆交通科研设计院,重庆,400067
  3. 上海朗琪土木工程技术有限公司,上海,200437
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU451
- Online First：12 September 2012，
  
  Published：2012
- 稿件说明：
移动端阅览
QIU Chang-lin, LIU Bin, HE Lin-sheng, et al. Model test and in-situ monitoring of double-arch tunnel with integrated middle wall[J]. 2012, 33(9).
DOI：

QIU Chang-lin, LIU Bin, HE Lin-sheng, et al. Model test and in-situ monitoring of double-arch tunnel with integrated middle wall[J]. 2012, 33(9). DOI：

摘要

针对连拱隧道复杂的施工力学特性，结合实际工程，通过模型试验和现场监测分别研究了整体式中隔墙连拱隧道在中导正洞台阶法施工过程中的位移和中隔墙应力变化情况，并详细分析了各开挖步骤对其的影响。结果表明，对于整体式中隔墙连拱隧道，上台阶开挖对顶部位移和中隔墙应力的影响大于下台阶开挖产生的影响；隧道顶点位移-历时曲线总体形状呈S形，最大位移发生在后掘隧道的顶部。由于主洞的开挖将使中隔墙另一侧应力增加较大，而本侧应力增加较小甚至降低，因此，先掘隧道的开挖使中隔墙产生由先掘隧道侧向后掘隧道侧偏转的弯矩，而后掘隧道的开挖将使该弯矩值减小

Abstract

In order to study the complex characteristics of double-arch tunnel during excavation

model and in-situ monitoring based on a double-arch tunnel with integrated middle wall are conducted to study the displacement and the stress of middle wall during excavation by bench cut method with middle drift. The effect of each excavation stages is analyzed in detail. The test results show that the displacement and stress are effected more significantly by the excavation of calotte than by the excavation of bench. The displacement-time curve is in a shape of S and the maximum displacement locates at the top of later excavated tunnel. Because the excavation of tunnel makes the stress in the other side of middle wall increase greatly and the stress in the excavation’s side increase slightly or decrease

the bending moment in middle wall is induced with the direction from the earlier constructed tunnel to the other by the excavation of earlier excavated tunnel and decreases with the excavation of later excavated tunnel.

关键词

Keywords

references

Views

1699

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Model test study of vertical buried continuous pipelines displacements affected by tunnelling in sand

Application of particle image velocimetry to model test of negative skin friction on pile

Model excavation tests on double layered retaining structure composed of existing and supplementary soldier piles

Sealing system design and model testing of lining structures for artificial underground gas storage caverns in medium-hard rock strata

Calculation method of sliding surface stress based on segmented sliding surface stress measurement system

Related Author

WANG Zheng-xing

MIAO Lin-chang

WANG Ran-ran

PAN Hao

HUANG Ting

DAI Guo-liang

GONG Wei-ming

ZHENG Jin-hai

Related Institution

Institute of Geotechnical Engineering, Southeast University

College of Harbour, Coastal and Offshore Engineering, Hohai University

School of Civil Engineering, Southeast University

CCCC Highway Consultants Co., Ltd.

Zhejiang Provincial Engineering and Technology Research Center of Assembly-Concrete Industrialized Buildings

AI问答

⁰