| 瑞雷波"之"形速度-深度曲线的成因 |
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| 引用本文： | 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):860-863. |
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| 作者姓名： | 陈祥 孙进忠 刘景儒 |
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| 作者单位： | 中国地质大学工程技术学院,北京,100083;中国人民解放军92181部队,河北省,高碑店,074000 |
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| 摘 要： | 本文通过对层状介质的瑞雷方程进行求解，验证了层状介质中瑞雷波的多阶性，讨论了各阶导波对频散曲线的影响．在此基础上，从两个方面对实测速度-深度曲线常出现的“之”字形进行了解释，提出了其中还有待进一步解决的问题及相应的建议．
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| 关 键 词： | 瑞雷波 相速度 多阶性 "之"字形速度-深度曲线 |
| 文章编号： | 1004-2903(2004)04-0860-04 |
| 修稿时间： | 2003年10月3日 |
Mechanism of zigzag dispersion curve of rayleigh waves |
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| CHEN Xiang SUN Jin-zhong LIU Jing-ru.China University of Geosciences,Beijing ,China,.Unit ,Peoples Liberation Army of China,Gaobeidian ,China.Mechanism of zigzag dispersion curve of rayleigh waves[J].Progress in Geophysics,2004,19(4):860-863. |
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| Authors: | CHEN Xiang SUN Jin-zhong LIU Jing-ruChina University of Geosciences Beijing China Unit Peoples Liberation Army of China Gaobeidian China |
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| Institution: | CHEN Xiang~1 SUN Jin-zhong~1 LIU Jing-ru~21.China University of Geosciences,Beijing 100083,China,2.Unit 92181,Peoples Liberation Army of China,Gaobeidian 074000,China |
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| Abstract: | From numerical solutions for the Rayleigh equation of multiple layer media,we find that there are severalvalues of the phase velocity which have same frequency.For example,there should be several different Rayleighwaves propagating with different velocities relative to a single frequency.This may be one of the reasons for the oc-currence of zigzag dispersion curves of Rayleigh waves.Furthermore,some problems are proposed this paper for fur-ther studying. |
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| Keywords: | rayleigh wave phase velocity multiple phases zigzag dispersion curve |
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