| 地震复杂性成因的数值模拟 |
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| 引用本文： | 郑兆苾,张军. 地震复杂性成因的数值模拟[J]. 防灾减灾工程学报, 1999, 0(4) |
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| 作者姓名： | 郑兆苾 张军 |
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| 作者单位： | 安徽省地震局!安徽合肥230031 |
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| 基金项目： | 中国地震局九五攻关项目!9504030303 |
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| 摘 要： | 以最简单的弹簧滑块模型为理论基础,由完全确定性的动力学公式出发,采用细胞自动机技术,研究模拟地震序列时、空、强复杂性的成因。当模型中仅有非线性动力学因素时,模拟序列的时空强特征十分复杂,当引入弹性结构的不均匀性,模拟大事件的空间和强度特征明显受控于断层的不均匀性。由模拟结果推测认为地震的复杂性是由于地球的不均匀性和断层破裂的非线性动力学相互作用而引起的。
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| 关 键 词： | 地震模拟 细胞自动机 非线性动力学 不均匀性 |
SEISMOGENESIS COMPLEX NUMERICAL SIMULATION |
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| ZHENG Zhao bi ZHANG Jun. SEISMOGENESIS COMPLEX NUMERICAL SIMULATION[J]. Journal of Disaster Prevention and Mitigation Engineering, 1999, 0(4) |
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| Authors: | ZHENG Zhao bi ZHANG Jun |
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| Abstract: | Based on the simplest spring slide mass model as theory fundament, the complex genesis of time, space and strength of seismic sequence is simulated and studied from complete determinate dynamic formulae using a cell automata technique. When there is only nonlinear dynarnic factor, the time, space and strength characteristics of simulated sequence is very complex. When the heterogeneity of elastic structure is introduced, the space and strength characteristics of large event simulated are obviously controlled by fault heterogeneity. It is concluded that seismic complex is caused by the interaction of crust heterogeneity and the nonlinear dynamic of fault rupture. |
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| Keywords: | seismic simulation cell automata nonlinear dynamic heterogeneity |
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