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隧道建设(中英文) ›› 2012, Vol. 32 ›› Issue (1): 5-10.DOI: 10.3973/j.issn.1672-741X.2012.01.002

• 研究与探索 • 上一篇    下一篇

高地应力软岩隧道施工变形控制方法试验研究

邹翀1,张民庆2,李沿宗1,张文新1   

  1. (1. 中铁隧道集团有限公司技术中心, 河南 洛阳 471009; 2. 铁道部工管中心, 北京 100844)
  • 收稿日期:2011-11-22 修回日期:2012-01-10 出版日期:2012-02-20 发布日期:2012-03-09
  • 作者简介:邹翀(1971—),男,江西南昌人,1996年毕业于南昌航空大学机械工程专业,本科,教授级高级工程师,现从事隧道与地下工程科研工作。
  • 基金资助:

    中国中铁股份有限公司重点项目(2010-重点33)

Trial Research on Deformation Control during Tunneling  in Soft Ground with High Geostress

ZOU Chong1, ZHANG Minqing2, LI Yanzong1, ZHANG Wenxin1   

  1. (1. Technology Center of China Railway Tunnel Group Co., Ltd., Luoyang 471009, Henan, China; 2. Engineering Management Center, Ministry of Railways of China, Beijing 100844, China)
  • Received:2011-11-22 Revised:2012-01-10 Online:2012-02-20 Published:2012-03-09

摘要: 为了研究高地应力软岩隧道施工变形控制方法,以兰渝铁路木寨岭隧道为例,通过对超前导洞法与三台阶法进行现场试验,分析了2种施工方法在高地应力软岩地层的变形控制效果,总结了三台阶法施工各阶段的围岩变形规律,主要结论为: 1)超前导洞法与三台阶法施工,隧道中台阶是变形控制的重点; 2)2种方法对高地应力软岩大变形总体控制效果相近,应结合其施工效率进行比选; 3)隧道开挖后应及早施作仰拱,这对控制隧道变形极为有利。

关键词: 高地应力, 软岩隧道, 施工变形, 控制方法

Abstract: The control of the deformation induced by tunneling in soft ground with high geostress is studied, with Muzhailing tunnel on LanzhouChongqing railway as an example. Trails are made on pilot tunneling method and bench excavation method and the deformation controlling effects of these two methods are analyzed. The rules of the deformation occurring at different steps of bench excavation method are summarized. The conclusions drawn are as follows: 1) Regarding the pilot tunneling method and bench excavation method, the first bench is of great importance for the control of the tunnel deformation; 2) The overall deformation control effects of these two methods are similar for tunnels in soft ground with high geostress, therefore proper excavation method should be selected from these two methods, on basis of the construction efficiency; 3) The invert should be installed as soon as possible after the tunnel excavation, which is favorable to the deformation control. 

Key words: high geostress, soft ground tunnel, deformation occurring during construction, control method