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隧道建设(中英文) ›› 2019, Vol. 39 ›› Issue (9): 1515-1522.DOI: 10.3973/j.issn.2096-4498.2019.09.017

• 施工机械 • 上一篇    下一篇

某隧洞工程TBM不良地质处置探究

刘飞香1, 2, 于洋1   

  1. (1. 中国铁建重工集团股份有限公司, 湖南长沙 410100; 2. 西南交通大学, 四川成都 610031)
  • 收稿日期:2018-10-11 出版日期:2019-09-20 发布日期:2019-09-25
  • 作者简介:刘飞香(1963—),男,湖南湘阴人,1983年毕业于西南交通大学,工程机械专业,本科,教授级高级工程师,西南交通大学兼职教授,主要从事隧道建造智能装备研制与规划工作。 Email: liufeixiang@crchi.com。

TBM Technologies in Bad Geology of a Tunnel Project

LIU Feixiang1, 2, YU Yang1   

  1. (1. China Railway Construction Heavy Industry Co., Ltd., Changsha 410100, Hunan, China; 2. Southwest Jiaotong University, Chengdu 610031, Sichuan, China)
  • Received:2018-10-11 Online:2019-09-20 Published:2019-09-25

摘要:

为解决某隧洞工程面临的断层破碎带、软弱围岩大变形、塌方、大坡度、涌水突泥、岩爆、高地热等不良地质问题,设计具有电液混合脱困、刀盘扩挖、护盾延长、超前钻机、应急排水、空气冷却装置等功能的敞开式TBM,并在实际应用中增加螺旋清渣机、钢拱架顶升等功能,与拦水坝、超前注浆、管棚支护等施工手段相结合,有效度过最大涌水量达772.57 m3/h的涌水段、232 m的岩爆段、445 m的蚀变段、塌方段、60 m的涌泥涌沙段,最后根据实际应用效果,指出针对性设计存在的不足和需要改进的地方。

关键词: 隧洞工程, 不良地质, 敞开式TBM

Abstract:

According to the unfavorable geological problems, such as fault fracture zone, large deformation of soft surrounding rock, collapse, large slope, water and mud inrush, rock burst, high geothermal, etc., encounter during TBM boring in a tunnel, an open TBM with functions of electrohydraulic mixed jamming release, cutterhead enlargement cutting, shield extension, advance drilling rig, emergency drainage and air cooling device is designed; and functions of screw slag cleaner and steel arch frame jacking are added in practice. By cooperating with dam, advance grouting and pipe roof support, the TBM has successfully passed through the water gushing section with maximum water gushing capacity of 772.57 m3/h, rock burst section of 232 m, alteration section of 445 m, collapse section, and mud gushing section of 60 m. Finally, according to the practical experience, the shortcomings of the targeted design and the improving direction are put forward.

Key words: tunnel engineering, bad geology, open TBM

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