中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

Journal of Chongqing Jiaotong University(Natural Science) ›› 2014, Vol. 33 ›› Issue (2): 30-34.DOI: 10.3969/j.issn.1674-0696.2014.02.07

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Large Span Bias Weak Surrounding Rock Double-Arch Tunnel Construction Process

Gao Feng ,Xue Dianli   

  1. State Key Laboratory Cultivation Base for Bridge and Tunnel Engineering in Mountain Areas,Chongqing Jiaotong University,Chongqing 400074,China
  • Received:2012-12-10 Revised:2013-04-01 Online:2014-04-15 Published:2015-01-22

大跨偏压软弱围岩双连拱隧道施工过程研究

高 峰,薛佃立   

  1. 重庆交通大学 山区桥梁与隧道工程国家重点实验室培育基地,重庆 400074
  • 作者简介:高峰(1964—),男,浙江云和人,教授,博士生导师,主要从事隧道及地下工程方面的教学研究工作。E-mail:gaofeng1964@163.com。
  • 基金资助:
    国家自然科学基金项目(51178490);山区桥梁与隧道工程国家重点实验室培育基地开放基金项目(CQSLBF-Y12-2);高等学校博士学科点专项科研基金(20095522110002)

Abstract: The process of the construction of the transitional joint arch tunnel of Ziyin Tunnel in Zunyi was simulated by ANSYS FEM program. The stress states of sUITounding rock , ground settlement and the change of intemal forces of tunnel support structure during each period of construction were analyzed by the analysis of 3 excavation conditions. Through the comparative analysis and the monitoring and measurement data in the field construction , it is revealed that different excavation sequences have different effects on the tunnel stlucture in biased state.

Key words: tunnelling engineering, large span, bias arch tunnel, FEM, excavation conditions

摘要: 以遵义市子尹隧道为背景,采用ANSYS有限元分析程序对该工程采用的施工工况进行了二维有限元分析。通过对3种开挖工况的分析,获得了大跨偏压软弱围岩双连拱隧道在不同开挖工况时各阶段围岩的应力状态、地表沉降以及隧道支护结构的内力变化情况。通过对比分析,并结合现场施工监控量测资料,得到隧道处于偏压状态时,不同的开挖顺序对隧道结构产生不同的影响。

关键词: 隧道工程, 大跨度, 偏压连拱隧道, 有限元, 开挖工况

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