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隧道建设(中英文) ›› 2024, Vol. 44 ›› Issue (3): 596-604.DOI: 10.3973/j.issn.2096-4498.2024.03.017

• 施工技术 • 上一篇    下一篇

三模式掘进机全断面岩层段TBM模式施工技术研究

谢文达1, 梁红兵1, *, 陈乔松1, 郭永顺2, 马经哲3   

  1. (1. 广州地铁工程咨询有限公司, 广东 广州 510010 2. 广州地铁建设管理有限公司, 广东 广州 510330; 3.中铁隧道集团三处有限公司, 广东 广州  510530)

  • 出版日期:2024-03-20 发布日期:2024-04-28
  • 作者简介:谢文达(1995—),男,山东济南人,2020年毕业于中国矿业大学(北京),市政工程专业,硕士,助理工程师,现从事轨道交通工程建设管理工作。E-mail: wenda233@163.com。*通信作者: 梁红兵, E-mail: lianghongbing@gzdtjl.com。

Tunneling Technology of Three-Mode Tunnel Boring Machine Under TBM Mode in Full-Section Hard Rock

XIE Wenda1, LIANG Hongbing1, *, CHEN Qiaosong1, GUO Yongshun2, MA Jingzhe3   

  1. (1. Guangzhou Metro Engineering Consulting Co., Ltd., Guangzhou 510010, Guangdong, China; 2. Guangzhou Metro Construction Management Co., Ltd., Guangzhou 510330, Guangdong, China; 3. The 3rd Engineering Co., Ltd. of China Railway Tunnel Group, Guangzhou 510530, Guangdong, China)

  • Online:2024-03-20 Published:2024-04-28

摘要: 为研究三模式掘进机使用TBM模式在全断面岩层中的施工技术,以广州地铁7号线二期萝岗站—水西站盾构区间工程为研究背景,分别从出渣方式、掘进参数控制、刀具管理和稳定器应用4个方面对三模式掘进机TBM模式施工技术进行总结。结果表明: 1)本工程中三模式掘进机使用镶齿滚刀施工,相对光面滚刀的消耗更少,刀盘转矩更低; 2)三模式掘进机TBM模式采用泥浆循环和螺旋输送机双通道出渣,可显著降低泥浆管堵塞的概率,提高出渣效率; 3)三模式掘进机在前盾、中盾安装稳定器和撑靴,可保证全断面硬岩地层中掘进盾体不发生滚动,同时增强盾体稳定性; 4)在全断面岩层中采用三模式掘进机TBM模式开挖隧道,刀盘转速为3.0 r/min,总推力约15 000 kN,转矩可控制在1 300 kN·m,推进速度为8~12 mm/min

关键词:

Tunneling Technology of Three , Mode Tunnel Boring Machine , Under TBM Mode in Full-Section Hard Rock

Abstract: In this study, a detailed analysis is conducted on the shield section project from Luogang station to Shuixi station of the Phase Ⅱ of the Guangzhou metro line 7.  The tunneling technology employed by the threemode tunnel boring machine in fullsection hard rock under TBM mode is examined. Furthermore, various aspects, including mucking mode, driving parameter control, cutter management, and stabilizer application, are evaluated. Results reveal the following key points: (1) Using toothed disc cutters in the threemode tunnel boring machine results in lower cutter consumption compared to smooth disc cutters, accompanied by reduced cutterhead torque. (2) The implementation of mud circulation and doublechannel mucking via screw conveyors substantially minimizes mud pipe blockage issues and enhances mucking efficiency. (3) Strategically positioned stabilizers and grippers on the front and middle shields, respectively, ensure shield body stability during boring operations in hard rock strata. (4) Optimal operation parameters for tunneling in fullsection hard rock strata include a cutterhead rotation speed of 3.0 r/min, total thrust force of 15 000 kN, thrust speed of 1 300 kN·m, and torque of 812 mm/min.

Key words: rail transit, three-mode tunnel boring machine, hard rock section, tunneling efficiency, fullsection rock stratum