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隧道建设（中英文） ›› 2010, Vol. 30 ›› Issue (3): 313-316.

• 施工技术 • 上一篇    下一篇

包家山隧道大断面斜井进正洞挑顶技术

史振宇   

  1. 中铁十二局集团二公司, 太原030032
  • 收稿日期:2010-01-06 修回日期:2010-02-24 出版日期:2010-06-10 发布日期:2010-06-17
  • 作者简介:史振宇（1978—），男，2001年毕业于石家庄铁道学院土木工程（隧道与地下工程）专业，本科，工程师，主要从事隧道与地下工程的施工技术工作。

Technology of Roof Ripping Between Large CrossSectional Inclined
Shaft and Main Tunnel: Case Study on Baojiashan Tunnel

SHI  Zhen-Yu   

  1. The 2nd Engineering Co., Ltd. of China Railway 12th Bureau Group, Taiyuan 030032, China
  • Received:2010-01-06 Revised:2010-02-24 Online:2010-06-10 Published:2010-06-17

PDF

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摘要：

结合包家山隧道1＃斜井与正洞交叉口处的施工实例，介绍大断面斜井（横断面84.315m2）进正洞的挑顶施工技术。在充分了解地质条件的基础上，制定了“超前支护、分部开挖、加强支护、随挖随护、及时封闭、加强监测”的施工方案。重点阐述接头部位的施工方法，对施工经验进行了总结，可供同类工程参考。

关键词: 隧道, 大断面, 斜井, 挑顶

Abstract:

The technology of roof ripping between large crosssectional inclined shaft (with the crosssectional area reaching 84.315m2) and main tunnel is presented, with the roof ripping construction between No. 1 inclined shaft and main tunnel of Baojiashan tunnel as an example. The construction scheme of advance reinforcement, sequential excavation, strengthened primary reinforcement, supporting immediately after excavation, timely ring closing and strengthened monitoring is established on basis of fully understanding of the geological conditions. The construction method for the connection section is focused. The construction experience is summarized. The paper can be served as reference for similar projects in the future.

Key words: tunnel, large cross section, inclined shaft, roof ripping

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