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隧道建设(中英文) ›› 2021, Vol. 41 ›› Issue (1): 116-125.DOI: 10.3973/j.issn.2096-4498.2021.01.013

• 规划与设计 • 上一篇    下一篇

Design Method for Support Structure of Large Crosssection Tunnels in Hubei on ZhengzhouWanzhou Railway Constructed by Mechanized Means(大断面隧道机械化施工支护结构设计方法)

童建军1, 2, 刘大刚1, 2, 张霄1, 2, *, 王志龙1, 2, 赵思光1, 2, 李佳旺1, 2   

  1. 1. 西南交通大学 交通隧道工程教育部重点实验室, 四川成都  610031; 2. 西南交通大学土木工程学院, 四川成都 610031
  • 出版日期:2021-01-20 发布日期:2021-02-08
  • 作者简介:童建军(1977—),男,四川仁寿人,2014年毕业于西南交通大学,桥梁与隧道工程专业,博士,副教授,现从事隧道工程领域的教学与科研工作。E-mail: jjtong@swjtu.edu.cn。 *通信作者: 张霄, E-mail: 2503679058@qq.com。
  • 基金资助:
    国家自然科学基金(51578458,51878567,51878568); 中国铁路总公司科技研究开发计划(2017G007-H,2017G007-F,K2018G014

Design Method for Support Structure of Large Crosssection Tunnels in Hubei on ZhengzhouWanzhou Railway Constructed by Mechanized Means

TONG Jianjun1, 2, LIU Dagang1, 2, ZHANG Xiao1, 2, *, WANG Zhilong1, 2, ZHAO Siguang1, 2, LI Jiawang1, 2   

  1. 1. Key Laboratory of Transportation Tunnel Engineering Ministry of Education Southwest Jiaotong University, Chengdu 610031 Sichuan China 2. School of Civil Engineering Southwest Jiaotong University, Chengdu 610031 Sichuan China
  • Online:2021-01-20 Published:2021-02-08

摘要: 为了建立适用于大断面隧道机械化施工技术的支护结构设计方法,基于极限平衡法推导了考虑3种超前支护措施(超前管棚、掌子面锚杆和掌子面预注浆)的三维掌子面稳定系数计算公式;基于大量的深埋隧道形变压力现场实测数据,通过多元非线性回归分析方法,拟合推导了基于BQ系统的整体形变压力计算公式及局部形变压力计算公式,并建立了对应的洞身支护结构设计模型。根据提出的支护结构设计方法,给出了郑万高铁隧道掌子面超前支护参数及初期支护参数,通过工程应用,证明了该参数的合理性及本文设计方法的实用性。

关键词: 高铁隧道, 大断面隧道, 机械化施工, 支护结构设计, 掌子面稳定性, 形变压力

Abstract: In order to establish a support structure design method suitable for mechanized construction of large crosssection tunnels, the calculation equation of the stability coefficient of the tunnel face considering three kinds of advance support measures (advance pipe roofing, face bolting and pregrouting) is deduced based on the limit equilibrium method. Then, the calculation equations of the overall displacement pressure and the local displacement pressure are derived based on the multiple nonlinear regression analysis method, the BQ system and a large number of field test data of displacement pressure of deepcovered tunnels. Later, according to the support structure design method established, the advance support and primary support parameters of tunnels on ZhengzhouWanzhou highspeed railway are presented, and the rationality of the parameters and the practicability of the proposed method are proved by practical application.

Key words: highspeed railway tunnel, large crosssection tunnel, mechanized construction, support structure design, tunnel face stability, deformation pressure

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