| 圆弧状多层沉积谷地在平面P波入射下稳态响应的解析解 |
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| 引用本文： | 张郁山.圆弧状多层沉积谷地在平面P波入射下稳态响应的解析解[J].地球物理学报,2008,51(3):869-880. |
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| 作者姓名： | 张郁山 |
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| 作者单位： | 中国地震局地球物理研究所，北京 100081 |
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| 基金项目： | 国家自然科学基金，地震科学联合基金 |
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| 摘 要： | 利用波函数的FourierBessel级数展开法，给出了含任意多个圆弧状沉积层的谷地在平面P波入射下稳态动力响应的解析解.并以具有三个沉积层的谷地为例，在宽频范围内，利用稳态地面运动幅值的空间分布，讨论了谷地中沉积介质的成层性对地面运动的影响.
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| 关 键 词： | 圆弧状多层沉积谷地 平面P波 散射 解析解 |
| 文章编号： | 0001-5733(2008)03-0869-12 |
| 收稿时间： | 2007-7-10 |
| 修稿时间： | 2007年7月10日 |
Analytical solution for the stationary response of alluvial valleys containing multiple circular-arc layers to incident plane P waves |
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| ZHANG Yu-Shan.Analytical solution for the stationary response of alluvial valleys containing multiple circular-arc layers to incident plane P waves[J].Chinese Journal of Geophysics,2008,51(3):869-880. |
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| Authors: | ZHANG Yu-Shan |
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| Institution: | Institute of Geophysics, China Earthquake Administration, Beijing 100081, China |
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| Abstract: | By the method of Fourier-Bessel series expansion of wave function,an analytical solution to the stationary dynamic response of alluvial valley containing an arbitrary number of circular-arc layers,which is excited by an incident plane P wave,is presented.Taking the three-layer valleys as examples and using the spatial distributions of amplitude of stationary ground motion,the influences of the layering of alluvial media in the valleys on the ground motion are studied in a broad frequency band. |
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| Keywords: | Alluvial valley containing multiple circular-arc layers Plane P wave Scattering Analytical solution |
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