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隧道建设(中英文) ›› 2025, Vol. 45 ›› Issue (2): 402-414.DOI: 10.3973/j.issn.2096-4498.2025.02.016

• 施工机械 • 上一篇    下一篇

国产再制造TBM在软岩隧道中的防卡机改造研究

张晓平1, 刘勇斌1, 张春瑜2, 李馨芳1, 王红武2, 刘泉声1   

  1. 1. 武汉大学土木建筑工程学院 岩土与结构工程安全湖北省重点实验室, 湖北 武汉 430072;2. 中铁十八局集团隧道工程有限公司, 重庆 400700)

  • 出版日期:2025-02-20 发布日期:2025-02-20
  • 作者简介:张晓平(1982—),男,江西九江人,2010年毕业于中国科学院地质与地球物理研究所,地质工程专业,博士,教授,主要从事岩石力学及地下工程等方面的研究工作。 E-mail: jxhkzhang@163.com。

Transformation of Anti-Jamming Capability of Chinese Remanufactured Tunnel Boring Machines in Soft Rock Tunnels

ZHANG Xiaoping1, LIU Yongbin1, ZHANG Chunyu2, LI Xinfang1, WANG Hongwu2, LIU Quansheng1   

  1. (1. Key Laboratory of Safety for Geotechnical and Structural Engineering of Hubei Province, School of Civil Engineering, Wuhan University, Wuhan 430072, Hubei, China; 2. China Railway 18th Bureau Group Tunnel Engineering Co., Ltd., Chongqing 400700, China)

  • Online:2025-02-20 Published:2025-02-20

摘要: 为提升再制造敞开式TBM在软岩隧道中的防卡机脱困能力,以大凉山1号隧道平导为例,通过工程实践对比分析再制造TBM防卡机改造的必要性,提出针对主驱动、支护系统和刀盘扩挖系统的防卡机改造方案。工程实践表明: 1)通过更换主驱动减速机,再制造TBM的额定转矩和脱困转矩可提高38% 2)护盾和管棚钻机的改造可实现利用护盾导向孔快速施作超前管棚,一体化齿圈可确保管棚钻机和应急喷射混凝土设备的快速移动和准确定位,形成以护盾、锚杆、钢筋排、应急喷射混凝土和钢拱架相结合的连续封闭支护体系; 3)提出边滚刀外移和预留扩挖刀箱的扩挖方案,结合主驱动抬升技术可满足再制造TBM在软弱围岩洞段长距离连续扩挖掘进的需求。通过软弱围岩洞段防卡机处置案例及其整体应用效果,验证了上述防卡机改造方案的可行性及有效性。

关键词: 敞开式TBM, 再制造, 防卡机, 结构改造, 软岩, 公路隧道

Abstract: A case study on the pilot tunnel of the Daliangshan No. 1 tunnel is conducted with the aim of enhancing the anti-jamming and jam-releasing capabilities of remanufactured open tunnel boring machines (TBMs) in soft rock tunnels. The necessity of anti-jamming transformations for remanufactured TBMs is analyzed by employing suitable engineering practices, and transformation strategies targeting the main drive, support system, and cutterhead over-excavation system are proposed. The engineering practices demonstrate the following. (1) Replacing the main drive gearbox reducer increases the remanufactured TBMs rated and recovery torque by 38%. (2) Modifications to the shield and pipe-roof drilling machine facilitate the rapid installation of advance pipe roofs using shield guide holes. In addition, an integrated gear ring facilitates the quick mobility and precise positioning of the pipe-roof drilling machine and emergency shotcrete equipment. These measures result in the establishment of a continuous and enclosed support system that integrates the shield, rock bolts, steel ribs, emergency shotcrete, and steel arches. (3) An over-excavation scheme incorporating cutter edge extension and pre-reserved over-excavation cutter boxes is proposed. Combined with main drive elevation technology, this approach facilitates long-distance continuous over-excavation in soft rock tunnel sections. Finally, field applications confirm the feasibility and effectiveness of the proposed anti-jamming transformation strategies.

Key words: open tunnel boring machine, remanufacturing, anti-jamming, structural transformation, soft rock, highway tunnel