Risk Assessment on the Accident of TBM Cutterhead JammingCaused by Tunnel Collapse

WEN Sen; KONG Qing-mei

doi:10.3969/j.issn.1001-5485.2014.04.0132014, 31(04):59-62

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Journal of Changjiang River Scientific Research Institute ›› 2014, Vol. 31 ›› Issue (4) : 59-62. DOI: 10.3969/j.issn.1001-5485.2014.04.0132014, 31(04):59-62

ROCK-SOIL ENGINEERING

Risk Assessment on the Accident of TBM Cutterhead JammingCaused by Tunnel Collapse

WEN Sen, KONG Qing-mei

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Abstract

The cutterhead of tunnel boring machine(TBM) working in jointed rock mass is likely to be jammed. In order to reduce the loss, risk assessment is necessary. Whether the cutterhead is jammed or not depends on the relationship between torque and resistance torque. The magnitude of resistance torque depends on the height of collapse. According to the randomicity of collapse height and the theory of probability, a formula for calculating the probability of cutterhead jamming is established. Meanwhile, according to the magnitude of resistance torque and cutterhead’s parameters, the consequences of cutterhead jamming is divided into five ranks. On the basis of probability and consequence ranks, risk assessment matrix for TBM cutterhead is proposed. The research results are verified reasonable by practical example.

Key words

tunnel collapse / risk assessment / TBM cutterhead / resistance torque / risk assessment matrix

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WEN Sen, KONG Qing-mei. Risk Assessment on the Accident of TBM Cutterhead JammingCaused by Tunnel Collapse[J]. Journal of Changjiang River Scientific Research Institute. 2014, 31(4): 59-62 https://doi.org/10.3969/j.issn.1001-5485.2014.04.0132014, 31(04):59-62

References

[1] 刘波. 全断面双护盾掘进机在引黄工程断层破碎带的卡机处理[J]. 山西水利科技, 2007, (2):13-15.(LIU Bo. Treatment of Seizing Machine of Double Shield TBM in Cracked Faulted Zone of Tunnel of YRDP[J]. Shanxi Hydrotechnics, 2007, (2):13-15.(in Chinese))
[2] 宋天田, 肖正学, 苏华友, 等. 上公山TBM施工2.22卡机事故工程地质分析[J]. 岩石力学与工程学报, 2004, 23(增1):4544-4546.(SONG Tian-tian, XIAO Zheng-xue, SU Hua-you, et al.Engineering Geological Analysis on 2.22 Blockage Accident in TBM Construction of Shanggongshan Tunnel[J]. Chinese Journal of Rock Mechanics and Engineering, 2004, 23(Sup.1):4544-4546.(in Chinese))
[3] 尚彦军, 史永跃, 曾庆利, 等. 昆明上公山隧道复杂地质条件下TBM卡机及护盾变形问题分析和对策[J]. 岩石力学与工程学报, 2005, 24(21):3858-3863.(SHANG Yan-jun, SHI Yong-yue, ZENG Qing-li, et al. TBM Jamming and Deformation in Complicated Geological Condition and Engineering Measures[J]. Chinese Journal of Rock Mechanics and Engineering, 2005, 24(21):3858-3863.(in Chinese))
[4] HOEK E, BROWN E T. Practical Estimate of Rock Mass Strength[J]. International Journal of Rock Mechanics and Mining Sciences, 1997, 34(8):1165-1186.
[5] FARROKH E, MORTAZAVI A, SHAMSI G. Evaluation of Ground Convergence and Squeezing Potential in the TBM Driven Ghomroud Tunnel Project[J]. Tunnelling and Underground Space Technology, 2006, 21(5):504-510.
[6] 温森, 徐卫亚. 深埋隧洞TBM卡机事故风险分析[J]. 长江科学院院报, 2008, 25(5):135-138.(WEN Sen, XU Wei-ya. Risk Analysis on TBM Jamming in Deep Buried Tunnel[J]. Journal of Yangtze River Scientific Research Institute, 2008, 25(5):135-138.(in Chinese))
[7] 赵第厚. TBM卡机的原因和对策[J]. 山西水利科技, 2008, (3):46-48.(ZHAO Di-hou. The Causes of Seizing TBM and Countermeasures [J]. Shanxi Hydrotechnics, 2008, (3):46-48.(in Chinese))
[8] 何海健, 项彦勇, 刘维宁. 地铁施工引起邻近桥梁桩基差异沉降的概率分析[J]. 岩石力学与工程学报, 2007, 26(增1):3257-3265.(HE Hai-jian, XIANG Yan-yong, LIU Wei-ning.Probabilistic Analysis of Tunneling- Induced Differential Settlement of a Pile-Supported Urban Overpass[J].Chinese Journal of Rock Mechanics and Engineering, 2007, 26(Sup.1):3257-3265.(in Chinese))
[9] 王梦恕. 岩石隧道掘进机(TBM)施工及工程实例[M]. 北京:中国铁道出版社, 2004.(WANG Meng-shu. Rock Tunnel Boring Machine (TBM) Construction and Engineering Examples[M]. Beijing: China Railway Publishing House, 2004.(in Chinese))
[10]蔡美峰, 何满潮, 刘东燕. 岩石力学与工程[M]. 北京:科学出版社, 2002.(CAI Mei-feng, HE Man-chao, LIU Dong-yan. Rock Mechanics and Engineering[M]. Beijing: Science Press, 2002.(in Chinese))
[11]FARROKH E, ROSTAMI J. Effect of Adverse Geological Conditon on TBM Operation in Ghomroud Tunnel Conveyance Project[J]. Tunnelling and Underground Space Technology, 2009, 24(4):436-446.