| 弹性各向异性介质岩石体波相速度计算 |
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| 引用本文： | 蔡晓刚.弹性各向异性介质岩石体波相速度计算[J].地震地磁观测与研究,2011,32(6):80-89. |
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| 作者姓名： | 蔡晓刚 |
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| 作者单位： | 中国北京100085 中国地震局地壳应力研究所 |
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| 基金项目： | 中国地震局地壳应力研究所基本科研业务专项，国家自然科学基金 |
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| 摘 要： | 综述弹性波相速度计算的若干严格数值方法和近似解析方法,对数值算例及对不同方法作了比较.结果显示,不同数值方法得到结果一致,其适用于计算任意复杂各向异性介质岩石的相速度,但不便从物理意义的角度去分析物理参数对速度的影响；而近似解析解虽然精确程度各有不同,但是便于从物理意义的角度去进行速度分析,并在此基础上解析求取群速度这...
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| 关 键 词： | 相速度 Bond变换矩阵 裂隙密度 任意空间取向TI |
A review of the calculation of body waves phase velocity for elastic anisotropic media |
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| Cai Xiaogang.A review of the calculation of body waves phase velocity for elastic anisotropic media[J].Seismological and Geomagnetic Observation and Research,2011,32(6):80-89. |
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| Authors: | Cai Xiaogang |
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| Institution: | Cai Xiaogang (The Institute of Crustal Dynamic, China Earthquake Administration, Beijing 100085, China) |
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| Abstract: | In this study, several numerical and approximated analytical methods are summarized and compared with the numerical calculating results. The result shows that different numerical methods used here can obtain the same results, and they can be used to evaluate complex and strong anisotropic media but not convenient to make velocity properties analysis in terms of physical meaning. Meanwhile, linear approximated analysis but also to get the group velocity which solutions can not only be used to velocity is concerted by geophysical exploration.How to get the more exactly linear analytical expression for complex anisotropic media is a significant task to promote the research of seismic anisotropy. |
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| Keywords: | phasewith avelocity bond transform matrix crack density transverse isotropic mediarbitrary axis of symmetry |
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