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隧道建设(中英文) ›› 2011, Vol. 31 ›› Issue (S2): 41-47.

• 施工技术 • 上一篇    下一篇

某大跨下穿浅基建筑暗挖隧道初期支护开裂原因分析与施工对策

夏曾银, 赵胜   

  1. (中铁隧道集团京隧建公司,北京〓100022)
  • 收稿日期:2011-08-01 修回日期:2011-11-03 出版日期:2011-11-20 发布日期:2011-12-29
  • 作者简介:夏曾银(1979—),男,安徽当涂人,2003年毕业于石家庄铁道学院土木工程专业,本科,工程师,现从事铁路及公路隧道工程、市政地下工程的技术管理工作。

Cracking Causes of Primary Support of a Largespan Mined Tunnel underneath Crossing Building with Shallow Foundation and Treatments

XIA Zengyin,ZHAO Sheng   

  1. (Beijing Construction Co., Ltd. of China Railway Tunnel Group, Beijing 100022, China)
  • Received:2011-08-01 Revised:2011-11-03 Online:2011-11-20 Published:2011-12-29

摘要: 结合深圳地铁某大跨下穿浅基建筑暗挖隧道初期支护开裂实例,根据数值模拟分析,总结初期支护开裂的原因;同时根据现场实际状况,提出已挖洞室加固处理、剩余隧道均衡开挖、隧道二次衬砌紧跟开挖及地表房屋基础下跟踪注浆的综合处治方案,很好地实现了隧道安全顺利下穿地表浅基建筑的目的,为今后类似工程施工提供借鉴与参考。

关键词: 暗挖隧道, 初期支护开裂, 二次衬砌

Abstract: With the treatment of cracking on primary support of a of Shenzhen Metro as an example, the cracking causes are analyzed by means of numerical simulation. Meanwhile, according to the risk in the site, a integrated treatment including reinforcing the excavated tunnel, excavating balance of the remains, the secondary lining structure of the tunnel follows the excavation, following grouting under the foundation of building is proposed. In the end, the tunnel crosses the building safely. The paper can provide reference for similar projects in the future.

Key words: mined tunnel, primary support, cracking, secondary lining