| 用边界元法研究地震波在不规则地形处的散射问题 |
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| 引用本文： | 林皋,关飞.用边界元法研究地震波在不规则地形处的散射问题[J].大连理工大学学报,1990,30(2):145-152. |
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| 作者姓名： | 林皋 关飞 |
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| 作者单位： | 大连理工大学土木工程系抗震研究室
(林皋)，大连理工大学土木工程系抗震研究室(关飞) |
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| 摘 要： | 利用半平面动力格林函数，借助于边界元法或边界元、有限元混合法，研究ＳＨ．Ｐ和ＳＶ型地震波在半平面地形突变处的散射问题，从而分析不规则地形对地面运动的影响。计算结果和已有的解析或数值结果吻合较好。给出了各种地震波在不同入射角情况下，在不规则地形处的散射结果。
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| 关 键 词： | 地震波 散射 有限元 边界元 地形 |
Scattering of Seismic Waves at Irregular Topographies by Boundary Element Method |
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| Lin Gao,Guan Fei.Scattering of Seismic Waves at Irregular Topographies by Boundary Element Method[J].Journal of Dalian University of Technology,1990,30(2):145-152. |
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| Authors: | Lin Gao Guan Fei |
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| Abstract: | A numerical approach is presented to study the scattering of SH, P and SV seismic waves at canyons of arbitrary shapes by means of Boundary Element Method or Boundary and Finite Element Hybrid Method.The influences of incident angles of seismic waves and the shapes of topographies on the strong ground motion are investigated. The comparisons between the numerical fesults obtained by authors and those by other researchers are given.Satisfactory agreements are achieved. |
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| Keywords: | scatterings seismic wave finite element method/boundary element method |
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