面波多模频散曲线的敏感性及特征分析
|
摘要
面波勘探现在已经被广泛应用于工程选址及地震安全评价等方面,但其大多是针对Rayleigh波的应用,对Love波的关注较少。针对面波信息中的两种主要成份Rayleigh波和Love波对速度递增模型和存在低速层模型进行多模频散曲线的敏感性和特征分析,得到了多模式波对半空间介质模型和多层介质的响应特征,而且还对其基模式波和高模式波在高频和低频上的速度趋势进行了分析,细化了高频时的多模式波的理论最低速,得出了一些具有普遍性的结论,并为面波信息的综合利用提供了有力支持。
At present,surface wave exploration has been widely applied to the selection of site,the seismic safety evaluation,etc.More attention is paid to for the Rayleigh wave applications,but less attention is paid to the Love wave.The research in paper shows the analysis of sensitivity and characteristics of multi-mode dispersion wave of surface wave for the rate model and the low-velocity model,and achieved the media response of multi-mode wave in half-space models.The characteristics of base mode and higher mode in high frequency and low frequency were analyzed,and that refined the high frequency of multi-mode wave theory the lowest speed.Some general conclusions of surface wave supporting the surface wave are achieved.
At present,surface wave exploration has been widely applied to the selection of site,the seismic safety evaluation,etc.More attention is paid to for the Rayleigh wave applications,but less attention is paid to the Love wave.The research in paper shows the analysis of sensitivity and characteristics of multi-mode dispersion wave of surface wave for the rate model and the low-velocity model,and achieved the media response of multi-mode wave in half-space models.The characteristics of base mode and higher mode in high frequency and low frequency were analyzed,and that refined the high frequency of multi-mode wave theory the lowest speed.Some general conclusions of surface wave supporting the surface wave are achieved.
引文
[1]HARKRIDER,D.G..Surface waves in multilay-ered elastic media,part1[J],Bull.Seism.Soc.Am.1964,54(2):627.
[2]HASKELL,N.A.The dispersion of surface waveson multi-layered media[J],Bull.Seism.Soc.Am.1953,43(1):17.
[3]FENG S,SUGIYAMA T,YAMANAKA H.Appli-cation of sensitivity analysis to array desing for mi-crotremor array survey[C].Proceedings of the 104thSEGJ Conference,2001.
[4]陈祥,孙进忠,刘景儒.瑞雷波“之”形速度——深度曲线的成因[J].地球物理学进展,2004,19(4):860.
[5]陈棋福,刘澜波,王伟君.利用地脉动探测北京城区的地震动场地响应[J].科学通报,2008,53(18):2229.
[6]杨成林.瑞雷波勘探[M].北京:地质出版社,1993.
[7]肖柏勋.高模式瑞雷面波及其正反演研究[D].长沙:中南大学博士论文.2000.
[8]凡友华,刘家琦.层状介质中瑞雷面波的频散研究[J].哈尔滨工业大学学报.2001,33(5):577.
[9]何正勤,丁志峰,贾辉.等.用微动中的面波信息探测地壳浅部的速度结构[J].地球物理学报,2007,50(2):492.
[10]鲁来玉,王文,张碧星,等.层状半空间中的多模问题和瑞利波勘探[J].物探化探计算技术,2001,23(3):215.
[11]牛滨华,孙春岩.半空间均匀各向同性单相固体弹性介质与地震波传播[M].北京:地质出版社,2005.
[12]张明财,熊章强,张大洲,等.Rayleigh面波各阶模式频散曲线对横波速度和层厚的敏感性探讨[J].物探化探计算技术,2011,33(2):153.
[13]罗银河,夏江海.基阶与高阶瑞利波联合反演研究[J].地球物理学报,2008,51(1):243.
[14]梁志强.层状介质中多模式面波频散曲线研究[D].西安:长安大学硕士学位论文,2006.
[15]杨天春,何继善,吕绍林,等.三层层状介质中的多导波模式及其频散和位移特征[J].物探化探计算技术,2004,26(1):41.
[2]HASKELL,N.A.The dispersion of surface waveson multi-layered media[J],Bull.Seism.Soc.Am.1953,43(1):17.
[3]FENG S,SUGIYAMA T,YAMANAKA H.Appli-cation of sensitivity analysis to array desing for mi-crotremor array survey[C].Proceedings of the 104thSEGJ Conference,2001.
[4]陈祥,孙进忠,刘景儒.瑞雷波“之”形速度——深度曲线的成因[J].地球物理学进展,2004,19(4):860.
[5]陈棋福,刘澜波,王伟君.利用地脉动探测北京城区的地震动场地响应[J].科学通报,2008,53(18):2229.
[6]杨成林.瑞雷波勘探[M].北京:地质出版社,1993.
[7]肖柏勋.高模式瑞雷面波及其正反演研究[D].长沙:中南大学博士论文.2000.
[8]凡友华,刘家琦.层状介质中瑞雷面波的频散研究[J].哈尔滨工业大学学报.2001,33(5):577.
[9]何正勤,丁志峰,贾辉.等.用微动中的面波信息探测地壳浅部的速度结构[J].地球物理学报,2007,50(2):492.
[10]鲁来玉,王文,张碧星,等.层状半空间中的多模问题和瑞利波勘探[J].物探化探计算技术,2001,23(3):215.
[11]牛滨华,孙春岩.半空间均匀各向同性单相固体弹性介质与地震波传播[M].北京:地质出版社,2005.
[12]张明财,熊章强,张大洲,等.Rayleigh面波各阶模式频散曲线对横波速度和层厚的敏感性探讨[J].物探化探计算技术,2011,33(2):153.
[13]罗银河,夏江海.基阶与高阶瑞利波联合反演研究[J].地球物理学报,2008,51(1):243.
[14]梁志强.层状介质中多模式面波频散曲线研究[D].西安:长安大学硕士学位论文,2006.
[15]杨天春,何继善,吕绍林,等.三层层状介质中的多导波模式及其频散和位移特征[J].物探化探计算技术,2004,26(1):41.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心