| 二维各向同性介质地震波全波场的有限差分模拟 |
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| 引用本文： | 王海燕,王有学,薛霆虓,杨强. 二维各向同性介质地震波全波场的有限差分模拟[J]. 桂林工学院学报, 2012, 0(4): 482-489 |
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| 作者姓名： | 王海燕 王有学 薛霆虓 杨强 |
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| 作者单位： | [1]桂林理工大学广西隐伏金属矿产勘查重点实验室,广西桂林541004 [2]桂林理工大学地球科学学院,广西桂林541004 |
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| 基金项目： | 国家自然科学基金项目（41174077）; 广西自然科学基金项目（2010GXNSFA013016）; 广西研究生教育创新计划项目（2011105960818M03） |
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| 摘 要： | 对地震波场的有限差分方程进行了详细的推导,采用改进的中心线算法对有限差分方程中的大型稀疏线性方程组进行求解,并对算法的稳定性进行了分析。通过对二维双层弹性介质中的地震波全波场的模拟,获得了清晰的地震波波场特征,包括面波及体波波场特征。
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| 关 键 词： | 地震波全波场 各向同性 有限差分 数值模拟 |
Full Seismic Field Modeling by Finite Difference Method in Elastic Isotropic Media |
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| WANG Hai-yan,WANG You-xue,XUE Ting-xiao,YANG Qiang. Full Seismic Field Modeling by Finite Difference Method in Elastic Isotropic Media[J]. Journal of Guilin University of Technology, 2012, 0(4): 482-489 |
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| Authors: | WANG Hai-yan WANG You-xue XUE Ting-xiao YANG Qiang |
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| Affiliation: | (a.Guangxi Key Laboratory of Hidden Metallic Ore Deposits Exploration;b.College of Earth Sciences,Guilin University of Technology,Guilin 541004,China) |
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| Abstract: | The finite difference equations of the seismic wave field are derived detailedly,used improved center-line method to solve the FD equations with large-spare array,and the stability of the method is analyzed.Through the full wave field modeling in 2D elastic media with horizontal and dip interfaces,the characteristics of the full seismic wave field,including surface wave and body wave,can be modeled clearly. |
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| Keywords: | full seismic wave field elastic isotropic media Finite Difference（FD） numerical modeling |
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