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隧道建设(中英文) ›› 2006, Vol. 26 ›› Issue (4): 40-42,60.DOI: B

• 施工技术 • 上一篇    下一篇

软岩大跨小间距双洞隧道洞口浅埋段开挖技术

 黄新社, 曹正喜   

  1. 1.中铁隧道集团杭州分公司| 杭州310030|2.中铁隧道集团科研所| 河南 洛阳471009
  • 收稿日期:2006-02-22 出版日期:2006-08-20 发布日期:2010-04-21
  • 作者简介:黄新社(1957-)|男|1981年毕业于郑州工学院(现郑州大学)水利水电工程建筑专业|高级工程师|现从事地下工程施工及管理工作。

Excavation Technology of Shallowburied Portal Section of
Largespanned Smallspaced Twintube Tunnel in Soft Ground

HUANG Xin-She, CAO Zheng-Chi   

  1. 1. Hangzhou Company of China Railway Tunnel Group Co., Ltd., Hangzhou 310030, China;
    2. Scientific Research Institute of China Railway Tunnel Group Co., Ltd., Luoyang 471009, Henan, China
  • Received:2006-02-22 Online:2006-08-20 Published:2010-04-21

摘要:

沈应线隧道工程位于较为繁华的舟山沈家门城区,长1230m,其南北出入口地质很差,多为全~强风化岩层的粘性土夹砾石,围岩稳定性差,主要通过理论计算、进度要求及方便施工等方面的比选,确定了适用于该工程洞口段的开挖技术方法。同时,介绍了洞口浅埋段的实际施工方案及效果。

关键词: 大跨小间距, 双洞隧道, 开挖技术, 比选

Abstract:

Shengyingxian tunnel, being 1230m long, is located in the busy Shengjiamen urban area in Zhoushan. The geological conditions of the north entrance section and south entrance section of the tunnel are very poor, where most of the ground is fullyweathered~heavilyweathered cohesive soil containing gravels. The surrounding ground of the tunnel has poor selfsupport ability. On basis of theoretical calculations and the requirements of the construction progress and construction convenience, excavation technology suitable for the portal sections of the tunnel is determined. Furthermore, the article also presents the actual construction scheme and construction results of the shallowburied portal sections.

Key words: large spansmall spacing, twin tunnel, excavation technology, selection

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