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| 线源地震影响场计算模型 | |
| 引用本文： | 李铂,董翔,陈亚红,何琳,于澄. 线源地震影响场计算模型[J]. 地震地磁观测与研究, 2012, 33(3): 14-19 |
| 作者姓名： | 李铂 董翔 陈亚红 何琳 于澄 |
| 作者单位： | 1. 中国合肥230026 中国科学技术大学;中国济南250014 山东省地震局 2. 中国山东274000 菏泽市地震局 3. 中国合肥230031 安徽省地震局 4. 中国济南250014 山东省地震局 |
| 摘 要： | 传统的烈度衰减关系一般是由历史地震等震线资料拟合得到，但基于历史震例进行统计回归所得到的椭圆衰减模型往往不能够反映大地震时的地震衰减特点。尝试提出一种基于点源模型改进的线源地震影响场计算模型，引入地表破裂尺度对原有烈度衰减模型进行长轴上的修正，以期达到生成结果与强震实际烈度相拟合的目的，并可实现极震区震害的快速评估和计算。 |
| 关 键 词： | 地震烈度 衰减模型 影响场 线源模型 极震区 |
Realization of calculation model of line-source seismic effect fields |
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| Li Bo , Dong Xiang , Chen Yahong , He Lin , Yu Cheng. Realization of calculation model of line-source seismic effect fields[J]. Seismological and Geomagnetic Observation and Research, 2012, 33(3): 14-19 | |
| Authors: | Li Bo Dong Xiang Chen Yahong He Lin Yu Cheng |
| Affiliation: | 1) University of Science and Technology of China, Hefei 230026, China 2) Earthquake Administration of Shandong Province, Jinan 250014, China 3) Earthquake Administration of Heze City, Shandong Province 274000, China 4) Earthquake Administration of Anhui Province, Hefei 230031, China |
| Abstract: | Traditional intensity attenuation relation is generally achieved by fitting seismic data of historical earthquakes. However, elliptical attenuation model from statistical regression based on seismic cases in history cannot usually reflect attenuation characteristics in megaseism, an improved calculation model of line-source seismic effect field based on point source model is presented in this essay, introducing the major axis correction of original intensity attenuation model by surface rupture size to match generated result to actual intensity of mieroseism, and to assess and calculate seismic damages in meizoseismal area promptly. |
| Keywords: | earthquake intensity attenuation model effect field line-source model meizoseismal area |
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