| 浅层地震勘探中有限元数值模拟方法的应用研究 |
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| 引用本文： | 蒋伟,何正勤,赵爱华,周建超.浅层地震勘探中有限元数值模拟方法的应用研究[J].地震地磁观测与研究,2011,32(3):13-19. |
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| 作者姓名： | 蒋伟 何正勤 赵爱华 周建超 |
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| 作者单位： | 中国北京100081 中国地震局地球物理研究所 |
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| 摘 要： | 针对目前广泛用于解决工程地质问题的浅层地震勘探特点,通过对浅层小尺度介质进行地震波数值模拟,揭示地震波在不同浅层介质模型中的波场特征和传播规律.为浅层地震勘探野外数据采集前合理选择观测系统提供指导性的方案,并能对地震勘探成果解释的合理性给予客观评价.在分析各种数值模拟方法特点的基础上,选择具有精度高、易模拟复杂结构的有...
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| 关 键 词： | 浅层 小尺度介质 有限元法 正演模拟 |
Application of finite element numerical simulation in shallow seismic prospecting |
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| Jiang Wei,He Zhengqin,Zhao Aihua,Zhou Jianchao.Application of finite element numerical simulation in shallow seismic prospecting[J].Seismological and Geomagnetic Observation and Research,2011,32(3):13-19. |
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| Authors: | Jiang Wei He Zhengqin Zhao Aihua Zhou Jianchao |
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| Institution: | (Institute of Geophysics, China Earthquake Administration, Beijing 100081, China ) |
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| Abstract: | Currently shallow seismic prospecting method is widely applied in engineering geological exploration. Through using seismic wave numerical simulation in shallow small-scale medi- um, the characteristic and propagation rule of seismic wave in some different shallow medium models is revealed in this paper. It can guide the reasonable observation system before field collection of shallow seismic prospecting, and also can objectively evaluate the rationality of seismic prospecting interpretation. On the basis of comparing with some numerical modeling methods, the finite element method which has high precision and easily simulates complex structure in shallow model is employed in this paper. Through comparing with actual common-source point records, the characteristics of main wave groups are similar with each other. So using finite element method in shallow complex structure is valid and viable. |
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| Keywords: | shallow layer small-scale medium finite element method seismic modeling |
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