[1]张 婷,周 慧,赖金星,等.西安地铁双线平行盾构隧道净距优化[J].筑路机械与施工机械化,2017,(10):78-83.
　ZHANG Ting,ZHOU Hui,LAI Jin-xing,et al.Optimization of Clearance of Tunnel in Xi'an Metro Constructed with Double Shield TBM[J].,2017,(10):78-83.
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西安地铁双线平行盾构隧道净距优化()
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《筑路机械与施工机械化》[ISSN:1000-033X/CN:61-1119/U]

卷:
期数:
2017年10期
页码:
78-83
栏目:
设计与实验
出版日期:
2017-10-15

文章信息/Info

Title:
Optimization of Clearance of Tunnel in Xi'an Metro Constructed with Double Shield TBM
文章编号:
1000-033X(2017)10-0078-06
作者:
张 婷1; 周 慧2; 赖金星2; 汪 珂3; 冯志华2
1.广州市轻工技师学院 现代制造产业系,广东 广州 510220;
2.长安大学 公路学院,陕西 西安 710064;
3.中铁第一勘察设计院集团有限公司,陕西 西安 710043
Author(s):
ZHANG Ting1;  ZHOU Hui 2;  LAI Jin-xing2;  WANG Ke3;  FENG Zhi-hua2
1.Department of Modern Manufacturing Industry, Guangzhou Technician College of Light Industry,Guangzhou 510220, Guangdong, China;
2.School of Highway, Chang'an University, Xi'an 710064, Shaanxi, China;
3.China Railway First Survey and Design Institute Group Co., Ltd., Xi'an 710043, Shaanxi, China
关键词:
地铁;  隧道净距;  沉降;  盾构
Keywords:
metro;  clearance of tunnel;  settlement;  shield
分类号:
U455.43
文献标志码:
B
摘要:
为了探究双线平行盾构下穿古建筑时的合理净距取值,依托西安地铁4号线区间双线盾构下穿和平门城墙及护城河工程,通过建立三维弹塑性模型,对双线隧道在不同净距工况下地表沉降、围岩塑性应变及管片变形等规律进行分析。结果表明:双线盾构机械施工通过后,右线隧道轴线的地表沉降值大于左线隧道轴线地表沉降值; 随着净距的增加,沉降槽宽度逐渐加宽,而地表沉降最大值有明显减小; 管片位移整体受净距影响较小。研究成果可为黄土地区双线地铁隧道的净距优化提供理论参考。
Abstract:
In order to explore the reasonable clearance of the double-line tunnel constructed with double shield TBM beneath the ancient buildings, the three-dimensional elastoplastic model was established based on the the construction of the section of Xi'an No.4 Metro covering the brick walls around Peace Arch and the moat.The analysis of the surface settlement, the plastic strain of the surrounding rocks and the deformation of the segment were carried out under working conditions with different clearance.The results show that after the construction with double shield TBM, the value of surface settlement at the axis of the right line is bigger than that of the left line; with the increase of the clearance, the width of the settlement channel gradually widens, and the maximum value of surface settlement is significantly reduced; the overall displacement of the segment is less affected by the clearance.The research results can provide a theoretical reference for the optimization of the clearance of the double-line subway tunnel in the loess area.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2017-03-17
基金项目:陕西省科技厅社会发展科技攻关项目(2016SF-412)
作者简介:张 婷(1974-),女,河南焦作人,高级讲师,从事机械制造方面的教学与科研工作。
更新日期/Last Update: 2017-10-30