| 地壳对海洋潮汐的响应 |
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| 引用本文： | 郑文衡,王乘,何振,牛安福. 地壳对海洋潮汐的响应[J]. 大地测量与地球动力学, 2002, 22(2): 41-46 |
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| 作者姓名： | 郑文衡 王乘 何振 牛安福 |
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| 作者单位： | 1. 华中科技大学,武汉,430074
2. 中国地震局分析预报中心,北京,100036 |
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| 基金项目： | ThisresearchwassupportedbyStateNatureScienceFoundationofChina(4 0 1740 2 4) |
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| 摘 要： | 应用三维动态有限元方法研究了中国北部地区的地壳对邻近的渤海与黄海海平面变化的响应。虽然此应力场过于微弱不足以引发地震，但发现应力集中的位置及应力场变化较大的位置恰好与某些现代地震的震中一致。这一结果表明研究地壳对广泛分布的载荷的响应对研究区域地震构造是有帮助的。
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| 关 键 词： | 地壳 三维动态有限元方法 中国北部 潮汐 地震 非线性 应力场 |
RESPONSE OF CRUST TO OCEAN TIDE |
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| Zheng Wenheng+{)}, Wang Cheng+{)}, He Zhen+{)}and Niu Anfu+{)}) Huazhong University of Science and Technology,Wuhan ) Center for Analysis and Prediction,CSB,Beijing. RESPONSE OF CRUST TO OCEAN TIDE[J]. Journal of Geodesy and Geodynamics, 2002, 22(2): 41-46 |
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| Authors: | Zheng Wenheng+{)} Wang Cheng+{)} He Zhen+{)}and Niu Anfu+{)}) Huazhong University of Science Technology Wuhan ) Center for Analysis Prediction CSB Beijing |
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| Affiliation: | Zheng Wenheng+{1)}, Wang Cheng+{1)}, He Zhen+{1)}and Niu Anfu+{2)}1) Huazhong University of Science and Technology,Wuhan 430074 2) Center for Analysis and Prediction,CSB,Beijing 100036 |
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| Abstract: | By using a three dimensional dynamic finite-element method, we studied the crustal response in the northern part of China to variations of sea level on the neighboring Bohai and Yellow seas. The stress field is too weak to cause earthquakes but found to show locations of stress concentration that coincide with the epicenters of several recent earthquakes. This result suggests that investigation of crustal response to small broadly distributing load may be useful for the study of regional seismic tectonics. |
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| Keywords: | D dynamic FEM northern part of China tide earthquake non-linearity |
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