| 用二相介质有限元方法对共和7.0级地震前兆的数值模拟 |
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| 引用本文： | 梁子斌,钱家栋,夏玉胜,赵和云,蔡红卫,张慧.用二相介质有限元方法对共和7.0级地震前兆的数值模拟[J].西北地震学报,1997,19(3):69-75. |
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| 作者姓名： | 梁子斌 钱家栋 夏玉胜 赵和云 蔡红卫 张慧 |
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| 作者单位： | 国家地震局兰州地震研究所 |
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| 摘 要： | 利用固液二相介质平面应变问题的有限元程序对共和７．０级地震的前兆现象的时空分布进行了数值模拟．研究中不仅考虑了固相的非线性、硬化及膨胀等效应，也充分考虑了水对前兆的影响，因此模拟结果与实际的前兆分布特征符合较好．
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| 关 键 词： | 地震前兆 数值模拟 有限元分析 共和地震 |
NUMERICAL SIMULATION OF GONGHE EARTHQUAKE(M=7.0) PROCESS BY THE FINITE ELEMENT METHOD IN TWO PHASE MEDIUM |
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| LIANG Zibin,QIAN Jiadong,XIA Yusheng,ZHAO Heyun,CAI Hongwei and ZHANG Hui.NUMERICAL SIMULATION OF GONGHE EARTHQUAKE(M=7.0) PROCESS BY THE FINITE ELEMENT METHOD IN TWO PHASE MEDIUM[J].Northwestern Seismological Journal,1997,19(3):69-75. |
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| Authors: | LIANG Zibin QIAN Jiadong XIA Yusheng ZHAO Heyun CAI Hongwei and ZHANG Hui |
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| Institution: | Earthquake Institude of Lanzhou, SSB, Lanzhou 730000,Earthquake Institude of Lanzhou, SSB, Lanzhou 730000,Seismological Bureau of Qinghai Province, Xining 810001,Earthquake Institude of Lanzhou, SSB, Lanzhou 730000,Earthquake Institude of Lanzhou, SSB, Lanzhou 730000 and Earthquake Institude of Lanzhou, SSB, Lanzhou 730000 |
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| Abstract: | The Gonghe earthquake (M=7.0) and its precursors are simulated by the finite element method in two dimensional plane strain model. In this model, not only the effect of nonlinear, hardening, dilation of solid phase, but also the influence of water be considered, so distribution of precursors by the simulation is similar to that of fact. |
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| Keywords: | Earthquake precursor Numerical simulation Finite element analysis Gonghe earthquake |
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