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隧道建设(中英文) ›› 2015, Vol. 35 ›› Issue (7): 616-622.DOI: 10.3973/j.issn.1672-741X.2015.07.002

• 研究与探索 • 上一篇    下一篇

深圳地铁并行叠落隧道施工相互影响的数值模拟分析

孙波1, 肖龙鸽2, 江华3, 孙正阳3, 李邵庭4   

  1. (1. 深圳市地铁集团有限公司, 广东 深圳 518026; 2. 中建南方投资有限公司, 广东 深圳 518026; 3. 中国矿业大学(北京)力学与建筑工程学院, 北京 100083; 4. 中建交通建设集团有限公司, 北京 100044)
  • 收稿日期:2015-05-15 修回日期:2015-07-01 出版日期:2015-07-20 发布日期:2015-07-29
  • 作者简介:孙波(1967—),男,安徽萧县人, 1988年毕业于西南交通大学,铁道工程地质专业,本科,高级工程师,现从事地铁建设管理工作。

Numerical Simulation of Mutual Influence in Construction of  Parallel Overlapping Tunnels of Shenzhen Metro

SUN Bo1, XIAO Longge2, JIANG Hua3, SUN Zhengyang3, LI Shaoting4   

  1. (1. Shenzhen Metro Group Co., Ltd., Shenzhen 518026, Guangdong, China; 2. China Construction South  Investment, Shenzhen 518026, Guangdong, China; 3. China University of Mining and Technology, Beijing 100083,  China; 4. China Construction Communication Engineering Co., Ltd., Beijing 100044, China)
  • Received:2015-05-15 Revised:2015-07-01 Online:2015-07-20 Published:2015-07-29

摘要:

以深圳地铁9号线银湖站西端五线叠落隧道为例,采用有限元数值模拟分析了不同情况下6号线与9号线叠落施工的相互影响,研究表明: 施作二次衬砌后的矿山法隧道在9号线施工影响下拱顶及底板的变形小于未施作二次衬砌的情况; 在二次衬砌强度达到60%后即可进行上跨隧道的施工; 在6号线与9号线隧道施工符合要求的情况下,由于相互影响而产生的变形在允许范围内,证明盾构法、矿山法叠落隧道施工的可行性。总结了叠落隧道施工的关键技术,指出同期完成深圳地铁9号线与6号线的叠落隧道建设大大减少了后期6号线建设的施工风险。

关键词: 深圳地铁, 并行叠落隧道, 数值模拟

Abstract:

The mutual influence in the construction of Line 6 and Line 9 of Shenzhen Metro in different situations is simulated by finite elements software, with the 5 parallel overlapping running tunnels located to the west end of Yinhu station as examples. Studies show that: 1) under the influence of the construction of Line 9, the deformation of the crown and floor of the drill & blast tunnel with secondary lining is less than that without secondary lining; 2) when the strength of secondary lining reaches 60% of the design value, the construction of the overpassing tunnel can be carried out; 3) with the construction of the tunnels of Line 6 and Line 9 complying with relevant requirements, the deformation caused by the mutual influences is within the acceptable range, which indicates that the construction of the parallel overlapping tunnel by drill & blast method and shield method is feasible. In the paper, the key technologies on the overlapping tunnels are summarized. It is concluded that the construction of the overlapping tunnels of Line 9 and Line 6 of Shenzhen Metro in the same stage will reduce the risks of the construction of Line 6 in the future.

Key words: Shenzhen Metro, parallel overlapping tunnel, numerical simulation

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