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隧道建设(中英文) ›› 2010, Vol. 30 ›› Issue (2): 206-211.DOI: B

• 施工技术 • 上一篇    下一篇

高地应力千枚岩地层斜井进正洞岔口地段施工技术

豆小天1, 徐双永2   

  1. 1. 中铁隧道集团二处有限公司, 河北 三河065201; 2. 兰渝铁路有限责任公司| 兰州730050
  • 收稿日期:2010-01-05 修回日期:2010-04-06 出版日期:2010-04-20 发布日期:2010-05-25
  • 作者简介:豆小天(1982—)|男|安徽六安人|2002年毕业于安徽大学|大专|工程师|现主要从事隧道及地下工程施工和管理工作。

Construction Technology for Connection Section between Inclined
Shaft and Main Tunnel in Phyllite Ground with High Ground Stress

DOU Xiao-Tian1, XU Shuang-Yong2   

  1. 1. The 2nd Engineering Co., Ltd. of China Railway Tunnel Group, Sanhe 065201, Hebei, China;
    2. LanzhouChongqing Railway Co., Ltd., Lanzhou 730050, China
  • Received:2010-01-05 Revised:2010-04-06 Online:2010-04-20 Published:2010-05-25

摘要:

结合兰渝铁路西秦岭隧道高地应力千枚岩地层斜井进正洞岔口地段施工技术及变形处理的工程实践,分析千枚岩地层走向与变形的关系,总结径向注浆、临时支撑等变形处理措施,有效地抑制围岩变形,同时,对该类围岩的施工技术参数及断面设计提出建议,对类似围岩地段的变形防治提供参考。

关键词: 高地应力, 千枚岩地层, 斜井, 正洞, 岔口地段

Abstract:

The relationship between the strike of the phyllite ground and the deformation of the tunnel is analyzed and the deformation control measures, including radial grouting and temporary support, are summarized in the paper, with the construction and deformation control of the connection section between the inclined shaft and the main tunnel of West Qinling tunnel on LanzhouChongqing railway in phyllite ground with high ground stress as an example. Suggestion is also made on the technical parameters and crosssection design of such works in such ground conditions. The paper can be served as reference for similar projects in the future.

Key words: high ground stress, phyllite ground, inclined shaft, main tunnel, connection section

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