| 走滑式断层地震的折迭突变模型 |
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| 引用本文： | 潘岳,李爱武.走滑式断层地震的折迭突变模型[J].应用数学和力学,2010,31(3):324-336. |
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| 作者姓名： | 潘岳 李爱武 |
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| 作者单位： | 青岛理工大学 土木工程学院,山东 青岛 266520;2.青岛理工大学 理学院,山东 青岛 266520 |
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| 摘 要： | 利用过势函数微分形式的途径，计入远场外力功的影响，对走滑式断层地震机制进行分析．研究表明:突变理论中折迭突变模型展示的性状，与走滑式断层地震的主要特征之间一一对应．折迭突变可对包括震前、震后围岩-断层系统稳定性描述在内的断层失稳起、终点位置、断层失稳错距等作出描述．给出3种性状可相互印证的断层失稳围岩弹性能释放量图解．走滑式断层地震强度与围岩压力及围岩断层的刚度比等有关，围岩压力大、刚度比小、主切应力轴与发震断层面夹角大，则地震强度大．
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| 关 键 词： | 断层地震 折迭突变模型 失稳终止点 失稳准则 能量输入率 弹性能释放量 |
| 收稿时间： | 1900-01-01 |
Fold Catastrophe Model of Strike-Slip Fault Earthquake |
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| PAN Yue,LI Ai-wu.Fold Catastrophe Model of Strike-Slip Fault Earthquake[J].Applied Mathematics and Mechanics,2010,31(3):324-336. |
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| Authors: | PAN Yue LI Ai-wu |
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| Institution: | College of Civil Engineering, Qingdao Technological University, Qingdao, Shandong 266520, P. R. China; |
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| Abstract: | By using differential form of potential energy function,and taking the effect of work applied by external force in far field into account,the mechanism of strike-slip fault earthquake was analyzed.The researching indicates that,in catastrophe theory the characters displayed by fold catastrophe model correspond to the primary characteristics of strike-slip fault earthquake one by one.Fold catastrophe can describe the position of starting point and end point of fault failure,distance of fault dislocation etc,... |
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| Keywords: | fault earthquake fold catastrophe model end point of failure failure criterion energy import rate elastic energy releasing amount |
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