两种Rayleigh波频散曲线计算方法对比研究
|
摘要
Rayleigh波频散曲线是场地速度结构反演的重要前提,其准确性决定了无损法检测场地速度结构的精确程度。为寻求准确计算Rayleigh波频散曲线的方法,利用Knopoff法和标量传递法分别计算两种典型地质模型的基阶和4个高阶Rayleigh波频散曲线,并进行比较,结果表明,两种方法基阶频散曲线吻合较好,高阶频散曲线相差较大。基阶频散曲线可用于场地速度结构反演。
The Rayleigh wave dispersion curve was an important prerequisite for inversion of site velocity structure,and its accuracy determined the accuracy of the non-destructive method to detect the speed structure of the site.In order to find the exact method of calculating the Rayleigh wave dispersion curve,the Knopoff method and the scalar transfer method were used to calculate the fundamental order and four high order Rayleigh wave dispersion curve of the two typical geological models.the Knopoff method and the scalar transfer method were compared.The results showed that the fundamental order dispersion curve of two methods were in good agreement with each other and higher order dispersion curve of two methods were different.The fundamental order dispersion curve could be used to invert site velocity structure.
The Rayleigh wave dispersion curve was an important prerequisite for inversion of site velocity structure,and its accuracy determined the accuracy of the non-destructive method to detect the speed structure of the site.In order to find the exact method of calculating the Rayleigh wave dispersion curve,the Knopoff method and the scalar transfer method were used to calculate the fundamental order and four high order Rayleigh wave dispersion curve of the two typical geological models.the Knopoff method and the scalar transfer method were compared.The results showed that the fundamental order dispersion curve of two methods were in good agreement with each other and higher order dispersion curve of two methods were different.The fundamental order dispersion curve could be used to invert site velocity structure.
引文
[1]王赞文.瑞雷面波法正反演及应用研究[D].西安:长安大学,2005.
[2]刘娟.基于小波分析的Rayleigh波相速度提取方法研究[D].哈尔滨:黑龙江科技大学,2013.
[3]凡友华,肖柏勋,刘家琦.计算层状介质中轴对称柱面瑞利面波频散函数的δ矩阵法[J].物探与化探,2001,25(2):109-117.
[4]邵广周.多阶模式瑞利波频散特征与反演研究[D].西安:长安大学,2009.
[5]Thrower E N.The Computation of the Dispersion of Elastic Waves in Layered Media[J].Journal of Sound and Vibration,1965(2):210-226.
[6]Watson T H.A Note on Fast Computation of Rayleigh Wave Dispersion in the Multilayered Half-space[J].Bulletin of the Seismological Society of America,1970(60):161-166.
[7]Abo-Zena A..Dispersion function computations for unlimited frequency values[J].Geophysical Journal of the Royal Astronomical Society,1979(58),91-105.
[8]李幼铭,束沛镒.层状介质中地震面波频散函数和体波广义反射系数的计算[J].地球物理学报,1982,25(2):130-139.
[9]Zhang Bixing,Yu M,Lan C Q,et al.Elastic wave and excitation mechanism of surface waves in multilayered media[J].Journal of the Acoustical Society of America,1996,100(6):3527-3538.
[10]凡友华.计算瑞利波频散曲线的快速矢量传递算法[J].湖南大学学报,2002,30(1):25-29.
[11]秦波,曹艳梅,夏禾.Rayleigh波频散曲线两种计算方法的对比[J].河北工程大学学报:自然科学版,2011,28(2):10-13.
[12]张晓阳,郭珍,唐拓,等.基于快速标量传递算法的频散曲线正演模拟[J].价值工程,2015(33):130-132.
[13]李树栩.基于面波记录反演土层结构[D].哈尔滨:哈尔滨工业大学,2014.
[14]杨成林.瑞雷波勘探[M].北京:地质出版社,1993.
[15]凡友华,刘家琦,韩波.瑞利面波频散曲线的理论计算研究[J].湖南大学学报,2001,28(3):10-16.
[16]秦波.基于Rayleigh波理论的地基土动参数反演[D].北京:北京交通大学,2011.
[17]宋先海,李刚.多模式瑞雷波波场特征及能量分布特性研究[J].人民长江,2011,42(7):11-14.
[2]刘娟.基于小波分析的Rayleigh波相速度提取方法研究[D].哈尔滨:黑龙江科技大学,2013.
[3]凡友华,肖柏勋,刘家琦.计算层状介质中轴对称柱面瑞利面波频散函数的δ矩阵法[J].物探与化探,2001,25(2):109-117.
[4]邵广周.多阶模式瑞利波频散特征与反演研究[D].西安:长安大学,2009.
[5]Thrower E N.The Computation of the Dispersion of Elastic Waves in Layered Media[J].Journal of Sound and Vibration,1965(2):210-226.
[6]Watson T H.A Note on Fast Computation of Rayleigh Wave Dispersion in the Multilayered Half-space[J].Bulletin of the Seismological Society of America,1970(60):161-166.
[7]Abo-Zena A..Dispersion function computations for unlimited frequency values[J].Geophysical Journal of the Royal Astronomical Society,1979(58),91-105.
[8]李幼铭,束沛镒.层状介质中地震面波频散函数和体波广义反射系数的计算[J].地球物理学报,1982,25(2):130-139.
[9]Zhang Bixing,Yu M,Lan C Q,et al.Elastic wave and excitation mechanism of surface waves in multilayered media[J].Journal of the Acoustical Society of America,1996,100(6):3527-3538.
[10]凡友华.计算瑞利波频散曲线的快速矢量传递算法[J].湖南大学学报,2002,30(1):25-29.
[11]秦波,曹艳梅,夏禾.Rayleigh波频散曲线两种计算方法的对比[J].河北工程大学学报:自然科学版,2011,28(2):10-13.
[12]张晓阳,郭珍,唐拓,等.基于快速标量传递算法的频散曲线正演模拟[J].价值工程,2015(33):130-132.
[13]李树栩.基于面波记录反演土层结构[D].哈尔滨:哈尔滨工业大学,2014.
[14]杨成林.瑞雷波勘探[M].北京:地质出版社,1993.
[15]凡友华,刘家琦,韩波.瑞利面波频散曲线的理论计算研究[J].湖南大学学报,2001,28(3):10-16.
[16]秦波.基于Rayleigh波理论的地基土动参数反演[D].北京:北京交通大学,2011.
[17]宋先海,李刚.多模式瑞雷波波场特征及能量分布特性研究[J].人民长江,2011,42(7):11-14.