| 横波在各向异性复合介质中的传播 |
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| 引用本文： | 楚泽涵,张颖.横波在各向异性复合介质中的传播[J].中国石油大学学报(自然科学版),1998(1). |
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| 作者姓名： | 楚泽涵 张颖 |
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| 作者单位： | 石油大学地球科学系 |
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| 摘 要： | 横波在各向异性介质中传播时将发生横波的分裂。把玻璃和水泥组成的复合介质看做是对裂缝简单而合理的近似，对裂缝引起的各向异性介质中横波的分裂进行了较详细的观察，当横波沿着平行于层面的方向传播时，可以观察到明显的横波分裂。裂缝引起的各向异性与裂缝参数和声源之间有密切的关系。在一定范围内，介质的横波速度各向异性程度随裂缝密度及裂缝宽度的增加而变大，且较高频率的探头对介质的各向异性更敏感。
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| 关 键 词： | 各向异性介质 多重介质 各向异性 横波分裂 裂缝 |
SHEAR WAVE PROPAGATION IN ANISOTROPIC COMPLEX MEDIA |
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| Chu Zehan,Zhang Ying.SHEAR WAVE PROPAGATION IN ANISOTROPIC COMPLEX MEDIA[J].Journal of China University of Petroleum,1998(1). |
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| Authors: | Chu Zehan Zhang Ying |
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| Abstract: | Shear wave splits while it propagates in anisotropic media. The complex media composed of glass and cement layers is used simply and reasonably to simulate the fractures. Shear wave splitting in anisotropic media caused by fractures is studied in detail with experiments and also with the relationship among anisotropy and fractural parameters,anisotropy and frequencies of acoustic sources. When shear wave propagates in parallel direction to the layer,clear shear wave splitting may be observed. Anisotropy of shear wave velocity increases with the fractural density and width. And high frequency is more sensitive to anisotropy. |
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| Keywords: | anisotropic media multiple media anisotropy shear wave splitting fracture |
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