节理岩体应力波反演模型研究
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摘要
通过分析垂直节理面入射应力波的传播过程,得出节理界面产生的各次回波波形函数表达式,确定波源处的振动组合,从而建立以该振动信号分析为基础的反演节理特征的模型。该模型不仅能反演出节理的一些基本特征,包括:节理的位置、节理内充填物的波阻抗、品质因子、以及节理宽度与波速比值,而且还能反演出节理另一侧岩石的波阻抗,这一成果无疑将扩大应力波在节理岩体测试中的应用范围。
Through analyzing the propagation process of stress wave in the vertical direction at the joint,the expression of a series of echoes generated at the joint are achieved;then the combined vibration at the initial wave source is determined;finally a inverse model to detect the joint’s characters based on signal process of the vibration is given.Utilizing this inverse model we can detect the joint’s location,characteristic impendence,quality factor and the ratio of its width to its velocity for stress wave;furthermore,the characteristic impendence of the rock located at the other side of the joint can also be detected.This conclusion would absolutely enhance the application of stress wave in detecting jointed rock masses.
Through analyzing the propagation process of stress wave in the vertical direction at the joint,the expression of a series of echoes generated at the joint are achieved;then the combined vibration at the initial wave source is determined;finally a inverse model to detect the joint’s characters based on signal process of the vibration is given.Utilizing this inverse model we can detect the joint’s location,characteristic impendence,quality factor and the ratio of its width to its velocity for stress wave;furthermore,the characteristic impendence of the rock located at the other side of the joint can also be detected.This conclusion would absolutely enhance the application of stress wave in detecting jointed rock masses.
引文
[1]王明洋,钱七虎.爆炸应力波通过节理裂隙带的衰减规律[J].岩土工程学报.1995,17(5):42-46.Wang Ming-yang,Qian Qi-hu.Attenuation law of
explosive wave propagation in cracks[J].Chinese Journal of Geotechnical Engineering,1995,17(5):42-46.
[2]Y K Wu,Propagation Characteristics of Blast-induced Shock Waves in Jointed Rock Mass[J].Soil Dynamicsand Earthquake Engineering,1998,(17):407-412.
[3]崔新壮,陈士海,刘德成.在裂隙岩体中传播的应力波的衰减机理[J].工程爆破.1999,5(1):18-21.CUI Xinzhang,CHEN Shihai.Attenuation Mechanism of Stress Wave Propagating in Crack Rock Mass[J].Engineering Blasting,1999,5(1):18-22.
[4]王鲁明,赵坚,华安增,等.节理岩体中应力波传播规律研究的进展[J].岩土力学.2003,24(Supp.):602-610.WANG Lu-ming,ZHAO Jian,HUA An-zeng,et al.The Progress in Study of Regularity of a Stress Wave Propagation in the Jointed Rock Mass[J].Rock and Soil Mechanics,2003,24(Supp.):602-610.
[5]Barry H.G.Brady,Dynamic Behavior of Rock[A].Dynamics/Rock Excavation[C].[s.l];[s.n],1995.
[6]卢文波.应力波与可滑移岩石界面间的相互作用研究[J].岩土力学.1996.17(3):71-75.Lu Wenbo.A Study on Interaction Between Stress Waveand Slipping Rock Interface[J].Rock and Soil Mechanics,1996.17(3):71-75.
[7]王靖涛.桩基应力波检测理论及工程应用[M]北京:地震出版社.1999.
[8]朱国维,彭苏萍,王怀秀.高频应力波检测锚固密实状况的试验研究[J].岩土力学.2002.23(6):787-791.ZHU Guo-wei,PENG Su-ping,Wang Huai-xiu.Testresearch on grouted density inspection of bolts using highfrequency stress wave[J].Rock and Soil Mechanics,2002.23(6):787-791.
[9]施建新.岩体灌浆检测方法及其适用性评价[J].水文地质工程地质.2002.4:70-73.(SHI Jian-xin.Thedetection methods of rock mass grouting and applicabilityevaluation[J].Hydrological Geology and Engineering Geology,2002.4:70-73.
[10]邱海涛,赵永贵,谭卓英,等.声波无损检测技术在南昆铁路隧道检测中的应用[J].广西地质.2002.15(3):75-78.
[11]李张明,练继建,戚蓝.地震波动层析成像技术探测复杂岩体结构应用研究[J].岩石力学与工程学报.2004.23(1):107-111.LI Zhang-ming,LIAN Ji-jian,Qi Lan.Study on detectionof complex rock structure by CT technique of seismicwave[J].Chinese Journal of Rock Mechanics and Engineering,2004.23(1):107-111.
[12]吴俊,应松,李苍松.路基挡墙背后回填质量声波检测新技术[J].路基工程.2003增刊:29-31.
[13]赵明阶,徐蓉.用弹性波速计算正交各向异性岩体的裂隙张量[J].重庆建筑大学学报.1999.21(2):42-48.ZHAO Ming-jie,XU Rong.A calculating method for thecrack tensor of the orthotropic rock mass by the elasticwave velocity[J].Journal of Chongqing Jianzhu University.1999,21(2):42-48.
[14]简文彬,吴振祥,邓鼎兴.某地下工程围岩的声波频谱特性[J].岩土力学.2003.24(supp.):623-626.JIAN Wen-bin,WU Zheng-xiang,DENG Ding-xing.Onthe character of frequency spectrum for an undergroundengineering wall rock[J].Rock and Soil Mechanics,2003,24(Supp.):623-626.
[15]尹向宝.超声波检测技术在岩体物性测试中的应用[J].煤炭技术.2003.22(10):89-90.YIN Xiang-bao.Application of the ultrasonic detectiontechnology in the rock body thing test[J].Coal Technology.2003.22(10):89-90.
[16]李宁,韩烜,陈蕴生.岩体节理刚度系数的现场声波测试[J].应用力学学报.1998.15(3):119-123.LI Ning,HAN Xuan,CHEN Yun-sheng.Test the stiffnesscoefficient for a rock mass joint using acoustic wave onspot[J].Chinese Journal of Applied Mechanics.1998.15(3):119-123.
[17]吴德伦,赵明阶.岩石细观力学参数的反演研究[J].岩石力学与工程学报.1996.15:433-439.WU De-lun,ZHAO Ming-jie.An Inverse Study on Micromechanical Parameters of Rock[J].Chinese Journal of Rock Mechanics and Engineering.1996.15:433-439.
explosive wave propagation in cracks[J].Chinese Journal of Geotechnical Engineering,1995,17(5):42-46.
[2]Y K Wu,Propagation Characteristics of Blast-induced Shock Waves in Jointed Rock Mass[J].Soil Dynamicsand Earthquake Engineering,1998,(17):407-412.
[3]崔新壮,陈士海,刘德成.在裂隙岩体中传播的应力波的衰减机理[J].工程爆破.1999,5(1):18-21.CUI Xinzhang,CHEN Shihai.Attenuation Mechanism of Stress Wave Propagating in Crack Rock Mass[J].Engineering Blasting,1999,5(1):18-22.
[4]王鲁明,赵坚,华安增,等.节理岩体中应力波传播规律研究的进展[J].岩土力学.2003,24(Supp.):602-610.WANG Lu-ming,ZHAO Jian,HUA An-zeng,et al.The Progress in Study of Regularity of a Stress Wave Propagation in the Jointed Rock Mass[J].Rock and Soil Mechanics,2003,24(Supp.):602-610.
[5]Barry H.G.Brady,Dynamic Behavior of Rock[A].Dynamics/Rock Excavation[C].[s.l];[s.n],1995.
[6]卢文波.应力波与可滑移岩石界面间的相互作用研究[J].岩土力学.1996.17(3):71-75.Lu Wenbo.A Study on Interaction Between Stress Waveand Slipping Rock Interface[J].Rock and Soil Mechanics,1996.17(3):71-75.
[7]王靖涛.桩基应力波检测理论及工程应用[M]北京:地震出版社.1999.
[8]朱国维,彭苏萍,王怀秀.高频应力波检测锚固密实状况的试验研究[J].岩土力学.2002.23(6):787-791.ZHU Guo-wei,PENG Su-ping,Wang Huai-xiu.Testresearch on grouted density inspection of bolts using highfrequency stress wave[J].Rock and Soil Mechanics,2002.23(6):787-791.
[9]施建新.岩体灌浆检测方法及其适用性评价[J].水文地质工程地质.2002.4:70-73.(SHI Jian-xin.Thedetection methods of rock mass grouting and applicabilityevaluation[J].Hydrological Geology and Engineering Geology,2002.4:70-73.
[10]邱海涛,赵永贵,谭卓英,等.声波无损检测技术在南昆铁路隧道检测中的应用[J].广西地质.2002.15(3):75-78.
[11]李张明,练继建,戚蓝.地震波动层析成像技术探测复杂岩体结构应用研究[J].岩石力学与工程学报.2004.23(1):107-111.LI Zhang-ming,LIAN Ji-jian,Qi Lan.Study on detectionof complex rock structure by CT technique of seismicwave[J].Chinese Journal of Rock Mechanics and Engineering,2004.23(1):107-111.
[12]吴俊,应松,李苍松.路基挡墙背后回填质量声波检测新技术[J].路基工程.2003增刊:29-31.
[13]赵明阶,徐蓉.用弹性波速计算正交各向异性岩体的裂隙张量[J].重庆建筑大学学报.1999.21(2):42-48.ZHAO Ming-jie,XU Rong.A calculating method for thecrack tensor of the orthotropic rock mass by the elasticwave velocity[J].Journal of Chongqing Jianzhu University.1999,21(2):42-48.
[14]简文彬,吴振祥,邓鼎兴.某地下工程围岩的声波频谱特性[J].岩土力学.2003.24(supp.):623-626.JIAN Wen-bin,WU Zheng-xiang,DENG Ding-xing.Onthe character of frequency spectrum for an undergroundengineering wall rock[J].Rock and Soil Mechanics,2003,24(Supp.):623-626.
[15]尹向宝.超声波检测技术在岩体物性测试中的应用[J].煤炭技术.2003.22(10):89-90.YIN Xiang-bao.Application of the ultrasonic detectiontechnology in the rock body thing test[J].Coal Technology.2003.22(10):89-90.
[16]李宁,韩烜,陈蕴生.岩体节理刚度系数的现场声波测试[J].应用力学学报.1998.15(3):119-123.LI Ning,HAN Xuan,CHEN Yun-sheng.Test the stiffnesscoefficient for a rock mass joint using acoustic wave onspot[J].Chinese Journal of Applied Mechanics.1998.15(3):119-123.
[17]吴德伦,赵明阶.岩石细观力学参数的反演研究[J].岩石力学与工程学报.1996.15:433-439.WU De-lun,ZHAO Ming-jie.An Inverse Study on Micromechanical Parameters of Rock[J].Chinese Journal of Rock Mechanics and Engineering.1996.15:433-439.
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