TBM掘进中滚刀受力实时监测方法研究
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摘要
由于掘进环境过于恶劣,TBM(tunnel boring machine)滚刀受力实时监测问题一直难以解决。文章根据对滚刀部件特征和荷载传递规律的分析,在C型垫块中嵌入应变计,提出有效的监测方法,并通过C型垫块的标定试验以及回转破岩试验,验证该监测方法的有效性和可行性。结果表明:1)在不同贯入度下,根据受力监测方法得到的垂向荷载与油缸荷载大小稍有差别,但两者的变化趋势几乎是一致的,说明该监测方法具有可行性和有效性; 2)随着贯入度的增大,滚刀所受法向力和侧向力也在增大。
Due to the harsh tunnelling environment,it is difficult to carry out real-time force monitoring of tunnel boring machine(TBM) disc cutter.Hence,the characteristics of disc cutter components and the transferring law of load are analyzed,a strain gauge is embedded in c-shaped cushion block,an effective monitoring method is proposed,and effectiveness and feasibility of the monitoring method are proved by the calibration test of the c-shaped support block and the rotary rock-breaking test.The test results show that:(1) Under the condition of different penetration degrees,the vertical load obtained by the stress monitoring method is slightly different from that of the oil cylinder,and the variation trends of the stresses are almost the same,which indicates the feasibility and effectiveness of the monitoring method.(2)With the increase of penetration degree,the normal and lateral forces of the disc cutters increase.
Due to the harsh tunnelling environment,it is difficult to carry out real-time force monitoring of tunnel boring machine(TBM) disc cutter.Hence,the characteristics of disc cutter components and the transferring law of load are analyzed,a strain gauge is embedded in c-shaped cushion block,an effective monitoring method is proposed,and effectiveness and feasibility of the monitoring method are proved by the calibration test of the c-shaped support block and the rotary rock-breaking test.The test results show that:(1) Under the condition of different penetration degrees,the vertical load obtained by the stress monitoring method is slightly different from that of the oil cylinder,and the variation trends of the stresses are almost the same,which indicates the feasibility and effectiveness of the monitoring method.(2)With the increase of penetration degree,the normal and lateral forces of the disc cutters increase.
引文
[1]孙斌,郭伟,朱殿华,等.基于CSM模型的TBM滚刀受力预测公式[J].机械设计与研究,2015,31(4):121.SUN Bin,GUO Wei,ZHU Dianhua,et al.The improvement of TBM cutter's force formula based on CSM model[J].Machine Design and Research,2015,31(4):121.
[2]陈超,侯振德,富东慧,等.一种测量TBM滚刀受力的实验方法研究[J].实验力学,2015,30(3):373.CHEN Chao,HOU Zhende,FU Donghui,et al.An experimental measurement for forces acting on TBM hobbing cutters[J].Journal of Experimental Mechanics,2015,30(3):373.
[3]于跃.盘刀破岩机理的细观数值模拟研究[D].大连:大连理工大学,2010.YU Yue.Numerical modelling for rock breaking mechanism of disc cutter[D].Dalian:Dalian University of Technology,2010.
[4]张晓波,刘泉声,张建明.TBM掘进刀具磨损实时监测技术及刀盘振动监测分析[J].隧道建设,2017,37(3):380.ZHANG Xiaobo,LIU Quansheng,ZHANG Jianming.Realtime monitoring technology for wear of cutters and monitoring and analysis of cutterhead vibration of TBM[J].Tunnel Construction,2017,37(3):380.
[5]FUKUI K,OKUBO S.Some attempts for estimating rock strength and rock mass classification from cutting force and investigation of optimum operation of tunnel boring machines[J].Rock Mechanics and Rock Engineering,2006,39(1):25.
[6]ROSTAMI Jamal.Hard rock TBM cutter head modeling for design and performance prediction[J].Geomechanik und Tunnelbau,2008,1(1):18.
[7]SAMUEL A E,SEOW L P.Disc force measurements on a full-face tunnelling machine[J].International Journal of Rock Mechanics and Mining Sciences&Geomechanics Abstracts,1984,21(2):83.
[8]ZHANG Z X,KOU S Q,TAN X C,et al.In-situ measurements of cutter forces on boring machine atsp9hard rock laboratory:Part I:Laboratory calibration and insitu measurements[J].Rock Mechanics and Rock Engineering,2003,36(1):39.
[9]ZHANG Z X,KOU S Q,LINDQVIST P A.In-situ measurements of cutter forces on boring machine atsp9hard rock laboratory:Part II:Characteristics of cutter forces and examination of cracks generated[J].Rock Mechanics and Rock Engineering,2003,36(1):63.
[10]ENTACHER M,WINTER G,BUMBERGER T,et al.Cutter force measurement on tunnel boring machines:System design[J].Tunnelling and Underground Space Technology,2012,31(5):97.
[11]ENTACHER M,WINTER G,GALLER R.Cutter force measurement on tunnel boring machines:Implementation at Koralm Tunnel[J].Tunnelling and Underground Space Technology,2013,38(3):487.
[12]陈永龙.单刀盘形滚刀破岩时的受力测试[J].矿山机械,1980,2(2):13.CHEN Yonglong.Force test of single-cutter hob during rock breaking[J].Mining&Processing Equipment,1980,2(2):13.
[13]万治昌,沙明元,周雁领.盘形滚刀的使用与研究(1):TB880E型掘进机在秦岭隧道施工中的应用[J].现代隧道技术,2002(5):1.WAN Zhichang,SHA Mingyuan,ZHOU Yanling.Study of disk cutters for hard rock(1):Application of TB880ETBM in Qinling Tunnel[J].Modern Tunnelling Technology,2002(5):1.
[14]赵晓旭,巩亚东.TBM盘形滚刀破岩接触区受力分布[J].中国工程机械学报,2015,13(2):168.ZHAO Xiaoxu,GONG Yadong.Loading distribution in rock-fragmentation contact zone of TBM disc hobbing cutters[J].Chinese Journal of Construction Machinery,2015,13(2):168.
[15]宋克志,袁大军,王梦恕.盘形滚刀与岩石相互作用研究综述[J].铁道工程学报,2005,22(6):66.SONG Kezhi,YUAN Dajun,WANG Mengshu.Study review on the interaction between disk cutter and rock[J].Journal of Railway Engineering Society,2005,22(6):66.
[2]陈超,侯振德,富东慧,等.一种测量TBM滚刀受力的实验方法研究[J].实验力学,2015,30(3):373.CHEN Chao,HOU Zhende,FU Donghui,et al.An experimental measurement for forces acting on TBM hobbing cutters[J].Journal of Experimental Mechanics,2015,30(3):373.
[3]于跃.盘刀破岩机理的细观数值模拟研究[D].大连:大连理工大学,2010.YU Yue.Numerical modelling for rock breaking mechanism of disc cutter[D].Dalian:Dalian University of Technology,2010.
[4]张晓波,刘泉声,张建明.TBM掘进刀具磨损实时监测技术及刀盘振动监测分析[J].隧道建设,2017,37(3):380.ZHANG Xiaobo,LIU Quansheng,ZHANG Jianming.Realtime monitoring technology for wear of cutters and monitoring and analysis of cutterhead vibration of TBM[J].Tunnel Construction,2017,37(3):380.
[5]FUKUI K,OKUBO S.Some attempts for estimating rock strength and rock mass classification from cutting force and investigation of optimum operation of tunnel boring machines[J].Rock Mechanics and Rock Engineering,2006,39(1):25.
[6]ROSTAMI Jamal.Hard rock TBM cutter head modeling for design and performance prediction[J].Geomechanik und Tunnelbau,2008,1(1):18.
[7]SAMUEL A E,SEOW L P.Disc force measurements on a full-face tunnelling machine[J].International Journal of Rock Mechanics and Mining Sciences&Geomechanics Abstracts,1984,21(2):83.
[8]ZHANG Z X,KOU S Q,TAN X C,et al.In-situ measurements of cutter forces on boring machine atsp9hard rock laboratory:Part I:Laboratory calibration and insitu measurements[J].Rock Mechanics and Rock Engineering,2003,36(1):39.
[9]ZHANG Z X,KOU S Q,LINDQVIST P A.In-situ measurements of cutter forces on boring machine atsp9hard rock laboratory:Part II:Characteristics of cutter forces and examination of cracks generated[J].Rock Mechanics and Rock Engineering,2003,36(1):63.
[10]ENTACHER M,WINTER G,BUMBERGER T,et al.Cutter force measurement on tunnel boring machines:System design[J].Tunnelling and Underground Space Technology,2012,31(5):97.
[11]ENTACHER M,WINTER G,GALLER R.Cutter force measurement on tunnel boring machines:Implementation at Koralm Tunnel[J].Tunnelling and Underground Space Technology,2013,38(3):487.
[12]陈永龙.单刀盘形滚刀破岩时的受力测试[J].矿山机械,1980,2(2):13.CHEN Yonglong.Force test of single-cutter hob during rock breaking[J].Mining&Processing Equipment,1980,2(2):13.
[13]万治昌,沙明元,周雁领.盘形滚刀的使用与研究(1):TB880E型掘进机在秦岭隧道施工中的应用[J].现代隧道技术,2002(5):1.WAN Zhichang,SHA Mingyuan,ZHOU Yanling.Study of disk cutters for hard rock(1):Application of TB880ETBM in Qinling Tunnel[J].Modern Tunnelling Technology,2002(5):1.
[14]赵晓旭,巩亚东.TBM盘形滚刀破岩接触区受力分布[J].中国工程机械学报,2015,13(2):168.ZHAO Xiaoxu,GONG Yadong.Loading distribution in rock-fragmentation contact zone of TBM disc hobbing cutters[J].Chinese Journal of Construction Machinery,2015,13(2):168.
[15]宋克志,袁大军,王梦恕.盘形滚刀与岩石相互作用研究综述[J].铁道工程学报,2005,22(6):66.SONG Kezhi,YUAN Dajun,WANG Mengshu.Study review on the interaction between disk cutter and rock[J].Journal of Railway Engineering Society,2005,22(6):66.