铁路隧道混凝土衬砌爆破振动安全判据
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摘要
根据应力波理论,依照极限拉应力准则、极限剪应力准则及莫尔判据,对爆炸应力波体波对隧道衬砌结构的影响进行研究,确定基于隧道衬砌结构安全的爆破振动速度判据模型。结合紧邻隧道上方的土石方开挖爆破工程实际,对爆破振动速度判据进行求解。研究结果表明:爆破应力波体波对隧道混凝土衬砌结构破坏效应中P波占主导地位,爆破振动作用下隧道结构首先产生拉伸破坏,隧道衬砌爆破振动速度安全判据为14.51 cm/s。研究结果与爆破安全规程一致,为隧道结构安全标准的确定提供了科学依据。
According to stress wave theory,ultimate tensile stress criterion,ultimate tensile stress criterion and Mohr's criterion,the influences of blasting stress body-wave on tunnel concrete lining were studied,and the model of blasting vibration velocity criterion which is based on the safety of tunnel lining was established.Through the excavation blasting project adjacent to tunnel top,the blasting vibration velocity criterion was solved.The results indicate that the damage effect of blasting stress body-wave on tunnel concrete lining is mainly caused by P-wave;the lining is firstly produce tensile damage under the action of blasting vibration;the blasting vibration safety criterion of tunnel lining is 14.51 cm/s.The results are consistent with the safety regulations for blasting and provide scientific support for establishing the safety standard of tunnel structure.
According to stress wave theory,ultimate tensile stress criterion,ultimate tensile stress criterion and Mohr's criterion,the influences of blasting stress body-wave on tunnel concrete lining were studied,and the model of blasting vibration velocity criterion which is based on the safety of tunnel lining was established.Through the excavation blasting project adjacent to tunnel top,the blasting vibration velocity criterion was solved.The results indicate that the damage effect of blasting stress body-wave on tunnel concrete lining is mainly caused by P-wave;the lining is firstly produce tensile damage under the action of blasting vibration;the blasting vibration safety criterion of tunnel lining is 14.51 cm/s.The results are consistent with the safety regulations for blasting and provide scientific support for establishing the safety standard of tunnel structure.
引文
[1]刘慧.近距侧爆情况下马蹄形隧道动态响应特点的研究[J].爆炸与冲击,2002,20(2):175-181.LIU Hui.Dynamic responses of hoof-shaped tunnels to adjacent blasting[J].Explosion and Shock Waves,2002,20(2):175-181.
[2]Hulshizer A J.Acceptable shock and vibration limits for freshly placed and maturing concrete[J].ACI Materials Journal,1996,93(6):524-533.
[3]Worsey P,Giltner S,Drechsler T.Formulation of production blasting criteria for the construction of a lime plant at a major crushed stone operation[J].International Journal for Blasting and Fragmentation,1998,2(2):181-194.
[4]Pao Y H.Elastic waves in solids[J].Journal of Applied Mechanics,1983,50(4):1152-1164.
[5]易长平,卢文波,张建华,等.爆破振动速度作用下城门洞形衬砌的临界振速度研究[J].岩土力学,2008,29(8):2203-2208.YI Chang-ping,LU Wen-bo,ZHANG Jian-hua,et al.Study on critical failure vibration velocity of arch with vertical wall lining subjected to blasting vibration[J].Rock and Soil Mechanics,2008,29(8):2203-2208.
[6]Henrvch J.爆炸动力学及其应用[M].刘殿中,等译.北京:科学出版社,1987:82-83.Henrvch J.Explosive dynamics and its application[M].LIU Dian-zhong,et al,trans.Beijing:Science Press,1987:82-83.
[7]王礼立.应力波基础[M].北京:国防工业出版社,1985:54-56.WANG Li-li.Stress wave basis[M].Beijing:National Defence Industry Press,1985:54-56.
[8]Achenbach J D.弹性固体中波的传播[M].徐植信,洪锦如,译.上海:同济大学出版社,1992:20-22.Achenbach J D.Wave propagation in elastic solid[M].XU Zhi-xin,HONG Jin-ru,transl.Shanghai:Tongji University Press,1992:20-22.
[9]陈明,卢文波.爆炸应力波对新浇混凝土衬砌的影响研究[J].岩土力学,2008,29(2):455-460.CHEN Ming,LU Wen-bo.The influence of explosive stress wave on young concrete lining[J].Rock and Soil Mechanics,2008,29(2):455-460.
[10]于亚伦.工程爆破理论与技术[M].北京:冶金工业出版社,2004:112-124.YU Ya-lun.Engineering blasting theory and technology[M].Beijing:Metallurgical Industry Press,2004:112-124.
[11]张程红.邻近隧道爆破施工引起的既有隧道衬砌振动速度阈值分析[D].兰州:兰州交通大学土木工程学院,2009:75-75.ZHANG Cheng-hong.Analysis of vibration velocity maximum of the lining of existing tunnel by the blasting of the tunnel near-by[D].Lanzhou:Lanzhou Jiaotong University.College of Civil Engineering,2009:75-75.
[12]李云安,葛修润,糜崇蓉,等.岩-土-混凝土破坏准则及其强度参数估算[J].岩石力学与工程学报,2004,23(5):770-776.LI Yun-an,GE Xiu-run,MI Cong-rong,et al.Failure criteria of rock-soil-concrete and estimation of their strength parameters[J].Chinese Journal of Rock Mechanics and Engineering,2002,20(2):175-181.
[13]刘佑荣,唐辉明.岩体力学[M].武汉:中国地质大学出版社,1999:67-67.LIU You-rong,TANG Hui-ming.Rock mass mechanics[M].Wuhan:China University of Geosciences Press,1999:67-67.
[14]胡春红.邻近栈桥在水下爆破地震作用下的动力响应及安全性评价[D].大连:大连理工大学水利工程学院,2006:104-105.HU Chun-hong.Dynamic response and safety evaluation of vicinal pier subjected to underwater blasting vibration[D].Dalian:Dalian University of Technology.School of Hydraulic Engineering,2006:104-105.
[15]TB 10003—2005,铁路隧道设计规范[S].TB 10003—2005,Specification for railway tunnel design[S].
[16]李智毅,杨裕云.工程地质学概论[M].武汉:中国地质大学出版社,1994:54-55.LI Zhi-yi,YANG Yu-yun.Rock mass mechanics[M].Wuhan:China University of Geosciences Press,1994:104-105.
[17]JTJ 004—89,公路工程抗震设计规范[S].JTJ 004—89,Specification for railway tunnel design TB10003—2005[S].
[18]李洪涛,卢文波,舒大强,等.P波作用下衬砌混凝土的爆破安全振动速度研究[J].爆炸与冲击,2007,27(1):34-39.LI Hong-tao,LU Wen-bo,SHU Da-qiang,et al.Study on the safety velocity for concrete lining under P wave loading[J].Explosion and Shock Waves,2007,27(1):34-39.
[19]GB 6722—2003,爆破安全规程[S].GB 6722—2003,Safety regulations for blasting[S].
[2]Hulshizer A J.Acceptable shock and vibration limits for freshly placed and maturing concrete[J].ACI Materials Journal,1996,93(6):524-533.
[3]Worsey P,Giltner S,Drechsler T.Formulation of production blasting criteria for the construction of a lime plant at a major crushed stone operation[J].International Journal for Blasting and Fragmentation,1998,2(2):181-194.
[4]Pao Y H.Elastic waves in solids[J].Journal of Applied Mechanics,1983,50(4):1152-1164.
[5]易长平,卢文波,张建华,等.爆破振动速度作用下城门洞形衬砌的临界振速度研究[J].岩土力学,2008,29(8):2203-2208.YI Chang-ping,LU Wen-bo,ZHANG Jian-hua,et al.Study on critical failure vibration velocity of arch with vertical wall lining subjected to blasting vibration[J].Rock and Soil Mechanics,2008,29(8):2203-2208.
[6]Henrvch J.爆炸动力学及其应用[M].刘殿中,等译.北京:科学出版社,1987:82-83.Henrvch J.Explosive dynamics and its application[M].LIU Dian-zhong,et al,trans.Beijing:Science Press,1987:82-83.
[7]王礼立.应力波基础[M].北京:国防工业出版社,1985:54-56.WANG Li-li.Stress wave basis[M].Beijing:National Defence Industry Press,1985:54-56.
[8]Achenbach J D.弹性固体中波的传播[M].徐植信,洪锦如,译.上海:同济大学出版社,1992:20-22.Achenbach J D.Wave propagation in elastic solid[M].XU Zhi-xin,HONG Jin-ru,transl.Shanghai:Tongji University Press,1992:20-22.
[9]陈明,卢文波.爆炸应力波对新浇混凝土衬砌的影响研究[J].岩土力学,2008,29(2):455-460.CHEN Ming,LU Wen-bo.The influence of explosive stress wave on young concrete lining[J].Rock and Soil Mechanics,2008,29(2):455-460.
[10]于亚伦.工程爆破理论与技术[M].北京:冶金工业出版社,2004:112-124.YU Ya-lun.Engineering blasting theory and technology[M].Beijing:Metallurgical Industry Press,2004:112-124.
[11]张程红.邻近隧道爆破施工引起的既有隧道衬砌振动速度阈值分析[D].兰州:兰州交通大学土木工程学院,2009:75-75.ZHANG Cheng-hong.Analysis of vibration velocity maximum of the lining of existing tunnel by the blasting of the tunnel near-by[D].Lanzhou:Lanzhou Jiaotong University.College of Civil Engineering,2009:75-75.
[12]李云安,葛修润,糜崇蓉,等.岩-土-混凝土破坏准则及其强度参数估算[J].岩石力学与工程学报,2004,23(5):770-776.LI Yun-an,GE Xiu-run,MI Cong-rong,et al.Failure criteria of rock-soil-concrete and estimation of their strength parameters[J].Chinese Journal of Rock Mechanics and Engineering,2002,20(2):175-181.
[13]刘佑荣,唐辉明.岩体力学[M].武汉:中国地质大学出版社,1999:67-67.LIU You-rong,TANG Hui-ming.Rock mass mechanics[M].Wuhan:China University of Geosciences Press,1999:67-67.
[14]胡春红.邻近栈桥在水下爆破地震作用下的动力响应及安全性评价[D].大连:大连理工大学水利工程学院,2006:104-105.HU Chun-hong.Dynamic response and safety evaluation of vicinal pier subjected to underwater blasting vibration[D].Dalian:Dalian University of Technology.School of Hydraulic Engineering,2006:104-105.
[15]TB 10003—2005,铁路隧道设计规范[S].TB 10003—2005,Specification for railway tunnel design[S].
[16]李智毅,杨裕云.工程地质学概论[M].武汉:中国地质大学出版社,1994:54-55.LI Zhi-yi,YANG Yu-yun.Rock mass mechanics[M].Wuhan:China University of Geosciences Press,1994:104-105.
[17]JTJ 004—89,公路工程抗震设计规范[S].JTJ 004—89,Specification for railway tunnel design TB10003—2005[S].
[18]李洪涛,卢文波,舒大强,等.P波作用下衬砌混凝土的爆破安全振动速度研究[J].爆炸与冲击,2007,27(1):34-39.LI Hong-tao,LU Wen-bo,SHU Da-qiang,et al.Study on the safety velocity for concrete lining under P wave loading[J].Explosion and Shock Waves,2007,27(1):34-39.
[19]GB 6722—2003,爆破安全规程[S].GB 6722—2003,Safety regulations for blasting[S].
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