盾构机刀具磨损与布局问题分析研究
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摘要
减小盾构掘进刀具磨损,是保证盾构机能够长距离掘进的重要措施。在施工中经常出现的盾构刀具磨损严重、破损、脱落等,导致工程事故的发生,给整个工程的工期、造价带来严重影响,甚至威胁人的生命。因此,研究如何减小盾构掘进刀具的磨损,探究引起磨损的各项因素对延长盾构机掘进距离,提高盾构机的工作效率具有重要意义。
本文从分析盾构刀具磨损的相关因素和减小磨损、延长寿命两方面入手,对盾构刀具的磨损、布局进行了研究,取得了下列研究成果:
1、分析了各种盾构刀具的特点和工作机理。
2、分析了刀具的磨损及磨损相关的各种因素,包括地质情况、刀具结构、施工控制等,并重点研究了刀具宽度和贯入度对刀具受力、磨损的影响;从设计和施工两方面总结了提高刀具耐用度的各项措施。
3、研究了刀盘、刀具形式及刀具与地质的适用关系,并通过工程案例进行了详细说明。
4、研究了刀具的一般布局型式;计算分析了刀具布局和磨损之间的关系;最后重点研究了刀具的等寿命布置原则,经过实例计算,并通过VBA在Autocad中的二次开发完成了刀具的等寿命布置计算。
这些成果可为以后盾构机刀盘的设计提供参考,为盾构机施工提供一定的指导作用。
Reducing shield cutters wear is an important way to ensure long-distance driving of the shield tunneling machine. Shield to reduce tool wear, is to ensure that long-distance shield tunneling machine can be an important measure. During the construction of the shield that often appear in a serious tool wear, damage, loss, etc., often lead to accidents for the whole project period, a significant impact on cost, or even a threat to human life. Therefore,how to reduce the cutter wear of shield tunneling machine, and explore the related factors is of great signigicance to improve the efficiency of the shield.
This paper research the cutter wear and the layout from the analysis of both the related factors of cutter wear and how to extend the working distance.
Firstly,analysis of characteristics and work principles of a variety of cutters of shield
Secondly,analysis of cutter wear and the related factors, including geological conditions、the cutter structure、and construction control;summed up measures to improve cutter life from both design and construction
Thirdly,how the kind of cutter head and cutter bits and the arrangement of cutters fit to various kinds of soil were researched. And described it in detail through the progect case.
Fourthly, Research on the general layout of the cutters; calculation and analysis of relationship between the cutters layout and the cutter wear; final key research on the layout of the cutters, according to the principle of life. After calculation, and through VBA in Autocad of second development,Completed cutters layout ,according to the principle of life.
All these results can be used for reference for future design of shield head,and can be used for guiding the construction of shield machine.
本文从分析盾构刀具磨损的相关因素和减小磨损、延长寿命两方面入手,对盾构刀具的磨损、布局进行了研究,取得了下列研究成果:
1、分析了各种盾构刀具的特点和工作机理。
2、分析了刀具的磨损及磨损相关的各种因素,包括地质情况、刀具结构、施工控制等,并重点研究了刀具宽度和贯入度对刀具受力、磨损的影响;从设计和施工两方面总结了提高刀具耐用度的各项措施。
3、研究了刀盘、刀具形式及刀具与地质的适用关系,并通过工程案例进行了详细说明。
4、研究了刀具的一般布局型式;计算分析了刀具布局和磨损之间的关系;最后重点研究了刀具的等寿命布置原则,经过实例计算,并通过VBA在Autocad中的二次开发完成了刀具的等寿命布置计算。
这些成果可为以后盾构机刀盘的设计提供参考,为盾构机施工提供一定的指导作用。
Reducing shield cutters wear is an important way to ensure long-distance driving of the shield tunneling machine. Shield to reduce tool wear, is to ensure that long-distance shield tunneling machine can be an important measure. During the construction of the shield that often appear in a serious tool wear, damage, loss, etc., often lead to accidents for the whole project period, a significant impact on cost, or even a threat to human life. Therefore,how to reduce the cutter wear of shield tunneling machine, and explore the related factors is of great signigicance to improve the efficiency of the shield.
This paper research the cutter wear and the layout from the analysis of both the related factors of cutter wear and how to extend the working distance.
Firstly,analysis of characteristics and work principles of a variety of cutters of shield
Secondly,analysis of cutter wear and the related factors, including geological conditions、the cutter structure、and construction control;summed up measures to improve cutter life from both design and construction
Thirdly,how the kind of cutter head and cutter bits and the arrangement of cutters fit to various kinds of soil were researched. And described it in detail through the progect case.
Fourthly, Research on the general layout of the cutters; calculation and analysis of relationship between the cutters layout and the cutter wear; final key research on the layout of the cutters, according to the principle of life. After calculation, and through VBA in Autocad of second development,Completed cutters layout ,according to the principle of life.
All these results can be used for reference for future design of shield head,and can be used for guiding the construction of shield machine.
引文
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[2] schloaryu,国产盾构机任重而道远[OL].(2007-09-11)[2009-05-16].http://info.cm.hc360.com/2007/09/11165190188.shtml
[3]杨华勇,盾构掘进机发展战略研究[OL].(2008-12-27)[2009-06-01].http://www.govyi.com/lunwen/2008/200812/279358_3.shtml
[4]周文波.盾构法隧道施工技术及应用.建筑工业出版社,2004.
[5]宋天田,周顺华.复合地层条件下盾构刀盘设计研究.地下空间与工程学报,2007,3(3):479-482.
[6]崔国华,王国强.何恩光等.盾构机的研究现状及发展前景.矿山机械,2006,34(6):24-27.
[7]刘高峰,宋天田.成都地铁盾构刀具磨损分析研究.隧道建设,2007,27(6):89-93.
[8]张国京.北京地区土压式盾构刀具的适应性分析.市政技术,2005,23(1):9-13.
[9]袁敏正,鞠世健,竺维彬.广州地铁一号线和二号线盾构机适应性研究与探讨.现代隧道技术,2004,41(3):31-34,39.
[10]崔国华,王国强等.全断面盾构掘进机切削刀具的计算力学模型求解.吉林大学学报,2008,S2:34-36.
[11]张耕耘,乐贵平,苏艺.盾构刀具的磨损及检测措施.市政技术,2008,28(5):417-419,469.
[12]宋克志,潘爱国.盾构切削刀具的工作原理分析.建筑机械,2007,02S:74-76.
[13]郭志军,佟金.耕作部件一土壤接触问题研究方法分析.农业机械学报,2001,32(4):102-104,112.
[14]郭志军,周志立,任露泉.仿生弯曲形切削性能的二维有限元分析.机械工程学报,2003,39(9):106-109.
[15]郭志军等.推土铲切削性能的二维有限元分析.拖拉机与农用运输车,2006,33(6):30-32.
[16] Teale,R..The Concept of Specific Energy in Rock Drilling[J].Int.J.Rock Mech.Min.Sci.& Geomech Abstr.2,1965:57-73.
[17]张照煌.全断面岩石掘进机盘形滚刀破岩机理的探讨.矿山机械,1995,(10):27-29.
[18]刘志杰,滕弘飞,史彦军等.TBM刀盘设计若干关键技术.中国机械工程,2008,19(16):1980-1985.
[19] Paul,B.and D.L.Sikarskie.A Preliminary Theory of Static Penetration of a Rigid Wedge into a Brittle Material[J].Transactions of the Society of Mining Engineers,AIME,New York,NY 232,1965:372-383.
[20] Roxborough , f.f.and H.R.Phillips.Rock Excavation by Disc Cutter[J].Int.J.Rock Mech.Min.Sci.&Geomech Abstr.12(12),1975:361-366.
[21] Snowdon,R.A.and Ryley,M.D..Single and Multiple Pass Disc Cutting in Shape Granite [J].Tunnel&Tunnelling:November 1983:15-19.
[22] OzdemirL,MiHer R,Wang FD.Mechanical tunnel boring prediction and machine design [R].Colorado School of Mines,1977.
[23] Rostami,J..Design Optimization,Performance Prediction and Economic Analysis of Tunnel Boring Machines for the Construction of the Proposed Yucca Mountain Nuclear Waste Repository[R].Department of mining engineering.Golden,CO,Colorado school of mines,1992:131.
[24]茅承觉,刘春林.全断面岩石掘进机盘形滚刀压痕试验.工程机械,1987,(6).
[25]张照煌,叶定海.盘形滚刀破岩模型及其侧向力的计算.用基础与工程学报,2004,12(3):293-298.
[26]秋三藤三朗.盘形滚刀破岩理论.小松技报,1970年l6卷50期.
[27] F.F.Roxborough Third Australian Tunnelling Conference 1978No9.
[28]王家骤.国外岩石隧道掘进机纵横谈.电站施工机械1980(2,3).
[29]张照煌.掘进机刀盘上盘刀布置规律的探讨[J].工程机械,1996,27(7):24-25.
[30]张照煌,叶定海.岩石掘进机刀具间距的确定及分析.工程机械,2002,33(11):11-12.
[31]宋克志,袁大军,王梦恕.盘形滚刀与岩石相互作用研究综述.铁道工程学报,2005,(6):66-69,92.
[32] Moon T. A Computational Methodology for Modeling Rock Cutting with a Discrete Element Method : Prediction of TBM Rock Cutting Performance[D].Golden:Colorado SchooI of Mines,2006.
[33] Gertsch R,Gertsch L,Rostami J.Disc Cutting Tests in Colorado Red Granite:Implications for TBM Performanee Prediction[J].International Journal of Rock Mechanics arltl Mining Sciences,2007,44(2):238-246.
[34]霍军周,史彦军,腾弘飞等.全断面岩石掘进机刀具布置设计方法.中国机械工程,2008,19(15):1832-1836.
[35] J. Rostami,L. Ozdemir "Computer Modeling of Mechanical Excavators Cutterhead", Proceedings of the World Rock Boring Association Conference, (Sept 17-19,1996). http://mining.mines.edu/research/emi/10_publications.html.
[36] CSM.CSM Computer Model for TBM Performance Prediction[EB/OL].(2007-04-10)[2009-06-02].http://mining.mines.edu/research/emi/
[37]张厚美.TBM的掘进性能数值仿真研究[J].隧道建没,2006,26(S2):1-7.
[38]霍军周,腾弘飞.全断面岩石掘进机刀具布置优化设计方法:中国,2007100121129[P].
[39]陈国盛.阿基米德螺线在盾构技术中的应用.重工与起重技术,2006,(2):18-20.
[40]管会生,高波.盾构切削刀具寿命的计算.工程机械,2006,37(1):25-28.
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