顶部导洞法TBM卡机脱困技术研究与应用

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (1660 KB) HTML (0 KB)
输出: BibTeX | EndNote (RIS)

摘要 研究目的:TBM已在我国地下工程建设领域中得到广泛应用,但对于复杂地质条件,TBM卡机问题仍十分突出,施工中曾多次遭遇连续卡机、长期卡机、突水涌泥、设备报废、工法改变等不同程度的困难,不但造成工期延误,还使工程建设成本大幅度增加,因此研究复杂地质条件下TBM卡机防控技术以及TBM卡机后的安全快速脱困技术十分必要。高黎贡山隧道全长34 538 m,进口采用钻爆法施工,出口采用TBM法施工。TBM施工中,一般地质条件下掘进比较顺利,但遇到断层破碎带、岩性接触带、节理密集带、风化蚀变带、软岩挤压带等复杂地质条件时,仍发生了19次卡机事故,其中正洞8次、平导11次,严重影响TBM的正常掘进,特别是严重卡机时,常规的脱困方法难以奏效,需要研究安全有效的脱困技术,从而保证TBM的正常掘进。
研究结论:(1)顶部导洞法是处理TBM卡机的一种有效脱困方法;(2)采用顶部导洞法处理TBM卡机时,导洞净空宽度宜为120 cm、净空高度宜为130 cm,管棚工作间宜在拱部120°范围内设置,管棚直径宜为76 mm,环向间距40 cm,仰角1°～3°,长度宜一次穿越隧道前方破碎带;(3)本研究成果可在类似隧道TBM施工中推广应用。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	张民庆
	辛维克
	贾大鹏
	司景钊
	王唤龙

关键词 ：隧道, TBM, 卡机, 顶部导洞法, 脱困, 研究, 应用

Abstract：Research purposes: TBM has been widely used in the field of underground engineering construction in China, but for complex geological conditions, the problem of TBM jamming is still very prominent. During construction, it has encountered difficulties in varying degrees such as continuous jamming, long-term jamming, water and mud inrush, equipment scrapping and construction method change, which not only delayed the construction period, but also greatly increased the project construction cost. Therefore, it is very necessary to study the prevention and control technology of TBM jamming under complex geological conditions and the safe and rapid escape technology after TBM jamming. Gaoligongshan Tunnel is 34 538 m in length. The inlet is constructed by drilling and blasting method, and the outlet is constructed by TBM method. During TBM construction, tunneling is relatively smooth under general geological conditions, but when the complex geological conditions such as the fault fracture zone, lithologic contact zone, joint dense belt, weathering alteration belt and soft rock extrusion zone are encountered, there are still 19 times jamming accident including 8 positive holes and 11 flat guide, seriously affecting the normal TBM tunneling, especially serious jamming, the conventional methods are difficult to be effective, so it is necessary to study safe and effective techniques to ensure the normal tunneling of TBM.
Research conclusions:(1) The top pilot tunnel method is an effective way to deal with TBM jamming. (2) When the top pilot tunnel method is used to deal with TBM jamming, the headroom width of the pilot tunnel should be 120 cm and the headroom height should be 130 cm. The pipe shed workshop should be set within 120° of the arch. The pipe shed should have a diameter of 76 mm, a circumferential spacing of 40 cm, an elevation of 1 ° ~ 3 °, and the length should pass through the fracture zone in front of the tunnel at one time. (3) The research results can be popularized and applied in TBM construction of similar tunnels.

Key words： tunnel TBM jamming top pilot tunnel method extricate oneself from difficulties research application

收稿日期: 2021-09-30

PACS:

U25

基金资助:中国国家铁路集团有限公司科技研究开发计划课题(P2019G055)

作者简介: ** 张民庆,1970年出生,男,正高级工程师。

引用本文:

张民庆, 辛维克, 贾大鹏, 司景钊, 王唤龙. 顶部导洞法TBM卡机脱困技术研究与应用[J]. 铁道工程学报, 2023, 40(1): 68-75.
ZHANG Minqing, XIN Weike, JIA Dapeng, SI Jingzhao, WANG Huanlong. Research and Application of Top Pilot Tunnel Method Rescue Technology in TBM Jamming. Journal of Railway Engineering Society, 2023, 40(1): 68-75.

链接本文:

https://tdgcxb.crec.cn/CN/ 或 https://tdgcxb.crec.cn/CN/Y2023/V40/I1/68

[1]	梁峰.基于TBM掘进隧洞塌方洞段处理措施[J].黑龙江水利科技,2018(6):56-59.Liang Feng. Preliminary Discussion on Treatment Measures of Collapse in TBM Advanced Tunnel Section[J].Heilongjiang Hydraulic Science and Technology,2018(6):56-59.
[2]	刘晓瑞.小导洞迂回反向支护在TBM卡机脱困中的应用[J].人民黄河,2020(2):109-112.Liu Xiaorui.Application of Small Guide Hole with Reverse Large Pipe－Shed Technology in TBM Jamming[J].Yellow River,2020(2):109-112.
[3]	徐虎城.断层破碎带敞开式TBM卡机处理与脱困技术探析[J].隧道建设,2018(S1):156-160.Xu Hucheng.Analysis of Jam Treatment and Releasing Technologies for Open TBM in Fault Fracture Zone[J].Tunnel Construction,2018(S1):156-160.
[4]	邓青力.敞开式TBM掘进过节理密集带施工技术[J].隧道建设,2011(6):733-736.Deng Qingli.Technology for TBM Tunneling Through Joint-densely-developed Granite Sections[J].Tunnel Construction,2011(6):733-736.
[5]	赵毅.小直径双护盾TBM超前化学灌浆脱困施工技术[J].隧道建设,2013(1):73-77.Zhao Yi.Technology for Releasing Jammed Small-diameter Telescopic TBM by Means of Advance Chemical Grouting[J].Tunnel Construction,2013(1):73-77.
[6]	张民庆,李建伟.TBM在软弱围岩中施工技术研究[J].铁道工程学报,2002(2):86-89.Zhang Minqing,Li Jianwei.Study on Construction Technique of TBM in Weak Surrounding Rock[J].Jounral of Railway Engineering Society, 2002(2):86-89.