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隧道建设(中英文) ›› 2014, Vol. 34 ›› Issue (1): 67-72.DOI: 10.3973/j.issn.1672-741X.2014.01.011

• 施工技术 • 上一篇    下一篇

地面出入式盾构法隧道新技术

吴惠明1,2, 周文波3, 滕丽3   

  1. (1.上海隧道工程股份有限公司, 上海 200082; 2.上海大学, 上海 200072;  3.上海城建(集团)公司, 上海 200122)
  • 收稿日期:2013-10-08 修回日期:2013-10-28 出版日期:2014-01-20 发布日期:2014-01-21
  • 作者简介:吴惠明(1970—),男,上海人,1993年毕业于上海大学,机械工程专业,本科,教授级高级工程师,主要从事隧道施工工作。

Case Study on Ground Penetrating Shield Technology (GPST)

WU Huiming1,2, ZHOU Wenbo3, TENG Li3   

  1. (1. Shanghai Tunnel Engineering Co., Ltd., Shanghai 200082, China;  2. Shanghai University, Shanghai 200072, China; 3. Shanghai Urban Construction (Group ) Co., Ltd., Shanghai 200122, China)
  • Received:2013-10-08 Revised:2013-10-28 Online:2014-01-20 Published:2014-01-21

摘要:

地面出入式盾构法隧道新技术省略了用于盾构始发与接收的工作井,在地面与地下连接区域用盾构掘进替代大开挖施工,具有环境影响小和建设工期短的显著优势,在中国属首次研发应用。该技术存在结构变形、接缝渗漏和轴线偏离等工程难题,以南京机场线地面与地下过渡段示范工程为背景,通过理论计算、三维仿真和模型试验等方法,重点阐述隧道变形、防水和盾构姿态控制等关键技术,并将其成功应用于示范工程,验证了GPST新技术的可行性和有效性,为推广应用提供了理论和实践支持。

关键词: 南京机场线, 盾构法隧道, 超浅覆土, 地面出入式, GPST

Abstract:

It is the first time that Ground Penetrating Shield Technology (GPST) has been developed and applied in China. For the sake of the GPST, the shield launching shaft and the shield arriving shaft needed by conventional shield tunneling technology can be cancelled, the connection section between the underground tunnel and the aboveground tunnel can be bored by shield, the influence of the tunnel construction on the environment can be minimized and the construction period can be shortened. Therefore, GPST has great advantages. However, GPST has disadvantages related to structural deformation, joint seepage and axis deviation. In the paper, the control of the deformation of the tunnel structure, the waterproofing of the tunnel and the control of the posture of the shield are studied by means of theoretical calculation, 3D simulation and model test, with the connection section between the underground tunnel and the aboveground tunnel of the airport line of Nanjing Metro as an example. The study results have been applied in the construction of the mentioned works, which proves that the GPST is feasible and effective. The paper can provide theoretical and practical support for the further application of GPST. 

Key words: airport line of Nanjing Metro, shieldbored tunnel, supershallow overburden, Ground Penetrating Shield Technology (GPST)