| 任意圆弧形凸起地形中隧洞对入射平面SH波的影响 |
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| 引用本文： | 梁建文,罗昊,Vincent W.Lee.任意圆弧形凸起地形中隧洞对入射平面SH波的影响[J].地震学报,2004,26(5):495-508. |
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| 作者姓名： | 梁建文 罗昊 Vincent W.Lee |
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| 作者单位： | 1) 中国天津300072天津大学土木工程系
2) Department of Civil Engineering, University of Southern California,Los Angeles,CA 90089-2531, U.S. |
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| 基金项目： | 国家自然科学基金，教育部优秀青年教师资助计划，教育部留学回国人员科研启动基金 |
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| 摘 要： | 借助辅助函数的思想， 采用波函数展开法给出了圆弧形凸起地形中隧洞对入射平面SH波影响问题的一个解析解．数值结果表明，凸起地形中隧洞的存在以及隧洞大小，对凸起地形表面运动，以及凸起地形中的隧洞的动应力集中均具有显著影响．
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| 关 键 词： | 凸起地形& 隧洞& 散射& SH波& 解析解 |
| 文章编号： | 0253-3782(2004)05-0495-14 |
| 修稿时间： | 2003年3月3日 |
SCATTERING OF PLANE SH WAVES BY A CIRCULAR-ARC HILL WITH A CIRCULAR TUNNEL |
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| Vincent W.Lee.SCATTERING OF PLANE SH WAVES BY A CIRCULAR-ARC HILL WITH A CIRCULAR TUNNEL[J].Acta Seismologica Sinica,2004,26(5):495-508. |
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| Authors: | Vincent WLee |
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| Abstract: | An analytical solution of scattering of incident SH waves by a circular-arc hill with a concentric circular tunnel was derived by Fourier-Bessel series expansion and auxiliary functions technique. The solution is reduced to solving a set of infinite linear algebraic equations finally. The accuracies of the numerical results are checked by the residual errors of boundary conditions with the truncation order increasing. The numerical results show that the existence and dimension of the tunnel have great effect on motion of the ground surface nearby and dynamic stress concentration of the tunnel. |
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| Keywords: | hill tunnel scattering plane SH waves analytical solution |
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