节理产状的应力波反射法反演研究
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摘要
节理对岩体工程有重要的影响,采用应力波反演节理产状有重要的工程意义。根据解析几何理论严密推导出节理面反射波走时公式,该公式建立节理真倾向、真倾角值与测点走时的直接关系。通过复信号分析可得到信号的瞬时振幅、相位和频率,节理岩体模拟试验测得的信号分析表明,即使面波干扰严重,由瞬时频率还是能有效判断节理反射波初至时刻,得到不同测线上的测点走时,在MATLAB平台上编制程序,由这些测点走时搜寻出反射波等时圆圆心,最终能很好地反演出节理产状。
The joint is crucial for rock mass engineering,so the inversion of the joint's attitude using stress wave is of great engineering significance. Based on the theory of analytic geometry,a formula to calculate traveling time of the reflected wave can be deduced from which direct relationship between a joint's true dip direction,true dip angle and the traveling time of measure points can be established. Through complex signal analysis,instantaneous amplitude,phase and frequency of signal can be presented. The signal obtained by the test of jointed rock mass simulation shows that despite the serious interference of Rayleigh wave,the initial arriving moment of the joint reflected wave can still be estimated by instantaneous frequency efficiently. Using the complex signal analysis,the traveling time of several measure points distributing around the source of vibration is gained. And a program based on MATLAB is written to search the center of the isochronous circle,therefore,the inversion of joint's attitude can be achieved in the end.
The joint is crucial for rock mass engineering,so the inversion of the joint's attitude using stress wave is of great engineering significance. Based on the theory of analytic geometry,a formula to calculate traveling time of the reflected wave can be deduced from which direct relationship between a joint's true dip direction,true dip angle and the traveling time of measure points can be established. Through complex signal analysis,instantaneous amplitude,phase and frequency of signal can be presented. The signal obtained by the test of jointed rock mass simulation shows that despite the serious interference of Rayleigh wave,the initial arriving moment of the joint reflected wave can still be estimated by instantaneous frequency efficiently. Using the complex signal analysis,the traveling time of several measure points distributing around the source of vibration is gained. And a program based on MATLAB is written to search the center of the isochronous circle,therefore,the inversion of joint's attitude can be achieved in the end.
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(2):42–46.(WANG Mingyang,QIAN Qihu.Attenuation law of explosive wave propagation in cracks[J].Chinese Journal of Geotechnical Engineering,1995,17(2):42–46.(in Chinese))
[2]WU Y K.Propagation characteristics of blast-induced shock waves in jointed rock mass[J].Soil Dynamics and Earthquake Engineering,1998,17(6):407–412.
[3]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 Luming,ZHAO Jian,HUA Anzeng,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.(in Chinese))
[4]韩嵩,蔡美峰.节理岩体物理模拟与超声波试验研究[J].岩石力学与工程学报,2007,26(5):1026–1033.(HAN Song,CAI Meifeng.Study on physical simulation of jointed rock mass and ultrasonic experiments[J].Chinese Journal of Rock Mechanics andEngineering,2007,26(5):1026–1033.(in Chinese))
[5]鞠杨,李业学,谢和平,等.节理岩石的应力波动与能量耗散[J].岩石力学与工程学报,2006,25(12):2426–2434.(JU Yang,LI Yexue,XIE Heping,et al.Stress wave propagation and energy dissipation in jointed rocks[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(12):2426–2434.(in Chinese))
[6]何樵登.地震勘探原理和方法[M].北京:地质出版社,1986.(HE Qiaoden.The principle and method for seismic exploration[M].Beijing:Geological Publishing House,1986.(in Chinese))
[7]张作平,刘兵.浅层工程勘探技术在工程建设区断裂构造勘测和岩性评价工作中的应用前景[J].岩石力学与工程学报,2002,21(增2):2605–2608.(ZHANG Zuoping,LIU Bing.Application prospect of shallow-project seismic exploration technique in fracture structures and rock property assessment[J].Chinese Journal of Rock Mechanics and Engineering,2002,21(Supp.2):2605–2608.(in Chinese))
[8]张广忠,刘貅生.浅层地震技术在隧道勘察中的应用[J].煤田地质与勘察,1998,26(增):49–52.(ZHANG Guangzhong,LIU Xiusheng.Application of shallow seismic technique in tunnel prospecting[J].Goal Geology and Exploration,1998,26(Supp.):49–52.(in Chinese))
[9]许年春.岩体节理多参数反演的反射波法研究[博士学位论文][D].重庆:重庆大学,2007.(XU Nianchun.Research on multi-parameter inversion for rock mass joint using reflected wave[Ph.D.Thesis][D].Chongqing:Chongqing University,2007.(in Chinese))
[10]中华人民共和国行业标准编写组.JGJ/T143–2004多道瞬态面波勘察技术规程[S].北京:中国建筑工业出版社,2004.(The Professional Standards Compilation Group of People′s Republic of China.JGJ/T143–2004Technical specifications of multi-channel transient surface wave investigation[S].Beijing:China Architecture and Building Press,2004.(in Chinese))
[11]孙良环,李艳兰,熊晓燕.希尔伯特变换原理在轴承故障诊断中的应用[J].机械管理开发,2005,(2):43–45.(SUN Lianghuan,LI Yanlan,XIONG Xiaoyan.The application of Hilbert transformation principle in fault diagnosis of bearing[J].Mechanical Management and Development,2005,(2):43–45.(in Chinese))
[12]田涛,丁康.希尔伯特变换及其在故障诊断中的应用[J].振动与冲击,1996,15(2):24–27.(TIAN Tao,DING Kang.Hilbert transform and its application in the failure diagnosis[J].Journal of Vibration and Shock,1996,15(2):24–27.(in Chinese))
[2]WU Y K.Propagation characteristics of blast-induced shock waves in jointed rock mass[J].Soil Dynamics and Earthquake Engineering,1998,17(6):407–412.
[3]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 Luming,ZHAO Jian,HUA Anzeng,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.(in Chinese))
[4]韩嵩,蔡美峰.节理岩体物理模拟与超声波试验研究[J].岩石力学与工程学报,2007,26(5):1026–1033.(HAN Song,CAI Meifeng.Study on physical simulation of jointed rock mass and ultrasonic experiments[J].Chinese Journal of Rock Mechanics andEngineering,2007,26(5):1026–1033.(in Chinese))
[5]鞠杨,李业学,谢和平,等.节理岩石的应力波动与能量耗散[J].岩石力学与工程学报,2006,25(12):2426–2434.(JU Yang,LI Yexue,XIE Heping,et al.Stress wave propagation and energy dissipation in jointed rocks[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(12):2426–2434.(in Chinese))
[6]何樵登.地震勘探原理和方法[M].北京:地质出版社,1986.(HE Qiaoden.The principle and method for seismic exploration[M].Beijing:Geological Publishing House,1986.(in Chinese))
[7]张作平,刘兵.浅层工程勘探技术在工程建设区断裂构造勘测和岩性评价工作中的应用前景[J].岩石力学与工程学报,2002,21(增2):2605–2608.(ZHANG Zuoping,LIU Bing.Application prospect of shallow-project seismic exploration technique in fracture structures and rock property assessment[J].Chinese Journal of Rock Mechanics and Engineering,2002,21(Supp.2):2605–2608.(in Chinese))
[8]张广忠,刘貅生.浅层地震技术在隧道勘察中的应用[J].煤田地质与勘察,1998,26(增):49–52.(ZHANG Guangzhong,LIU Xiusheng.Application of shallow seismic technique in tunnel prospecting[J].Goal Geology and Exploration,1998,26(Supp.):49–52.(in Chinese))
[9]许年春.岩体节理多参数反演的反射波法研究[博士学位论文][D].重庆:重庆大学,2007.(XU Nianchun.Research on multi-parameter inversion for rock mass joint using reflected wave[Ph.D.Thesis][D].Chongqing:Chongqing University,2007.(in Chinese))
[10]中华人民共和国行业标准编写组.JGJ/T143–2004多道瞬态面波勘察技术规程[S].北京:中国建筑工业出版社,2004.(The Professional Standards Compilation Group of People′s Republic of China.JGJ/T143–2004Technical specifications of multi-channel transient surface wave investigation[S].Beijing:China Architecture and Building Press,2004.(in Chinese))
[11]孙良环,李艳兰,熊晓燕.希尔伯特变换原理在轴承故障诊断中的应用[J].机械管理开发,2005,(2):43–45.(SUN Lianghuan,LI Yanlan,XIONG Xiaoyan.The application of Hilbert transformation principle in fault diagnosis of bearing[J].Mechanical Management and Development,2005,(2):43–45.(in Chinese))
[12]田涛,丁康.希尔伯特变换及其在故障诊断中的应用[J].振动与冲击,1996,15(2):24–27.(TIAN Tao,DING Kang.Hilbert transform and its application in the failure diagnosis[J].Journal of Vibration and Shock,1996,15(2):24–27.(in Chinese))
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