川滇及其邻区中强地震烈度衰减关系适用性研究
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摘要
本文选取川滇及邻区作为研究区域,根据地震构造环境和震害分布特点,将该地区分为西南地区和盆地地区,选取该地区6级以上的典型历史震例,将其数字化得到等震线数据,通过对这些数据的统计回归分析,分别建立两个区域的地震烈度沿长轴与短轴的衰减关系、各烈度面积与地震震级的关系、破裂长度与震级的关系。同时,综合利用上述关系建立不同的地震影响场分布计算模型,以进行震后快速评估等工作。其研究结果对于应急工作中的快速评估具有现实意义。
In this paper,the research area is focused on Sichuan-Yunnan and its adjacent areas.According to the seism-tectonic environment and seismic damage characteristics,the authors divided the Sichuan-Yunnan and its adjacent areas into southwest China region and Sichuan Basin region,and chose the typical earthquake cases over Ms6.0 in history.Then,the authors digitalized the typical earthquake cases and gained the isoseismal line.The authors went on and performed the statistical regression analysis of the gained data,and built some models for the relations of earthquake intensity attenuation along prolate axis and minor axis,the relationship between different intensity areas and the earthquake magnitude,and the relationship between rupture length and earthquake magnitude.Meanwhile,the above-mentioned relations were used for building calculation models for effect field distribution of the earthquakes and carrying out the work of post-earthquake rapid assessment.The research results have significant practical meaning for the rapid assessment of emergency work.
In this paper,the research area is focused on Sichuan-Yunnan and its adjacent areas.According to the seism-tectonic environment and seismic damage characteristics,the authors divided the Sichuan-Yunnan and its adjacent areas into southwest China region and Sichuan Basin region,and chose the typical earthquake cases over Ms6.0 in history.Then,the authors digitalized the typical earthquake cases and gained the isoseismal line.The authors went on and performed the statistical regression analysis of the gained data,and built some models for the relations of earthquake intensity attenuation along prolate axis and minor axis,the relationship between different intensity areas and the earthquake magnitude,and the relationship between rupture length and earthquake magnitude.Meanwhile,the above-mentioned relations were used for building calculation models for effect field distribution of the earthquakes and carrying out the work of post-earthquake rapid assessment.The research results have significant practical meaning for the rapid assessment of emergency work.
引文
[1]郁曙君.确定烈度衰减关系的椭圆投影两步拟合法[J].地震学报,1993,15(1):109-114.
[2]汪素云,俞言祥.中国分区地震动衰减关系的确定[J].中国地震,2000,16(2):99-106.
[3]李英民,蔡辉腾,韩军.重庆及邻近地区地震烈度衰减关系研究[J].防灾减灾工程学报,2007,27(1):17-22,42.
[4]雷建成,高孟潭,俞言祥.四川及邻区地震动衰减关系[J].地震学报,2007,29(5):500-511.
[5]袁一凡.四川汶川8.0级地震损失评估[J].地震工程与工程振动,2008,28(5):10-19.
[6]徐国栋,方伟华,史培军,等.汶川地震损失快速评估[J].地震工程与工程振动,2008,28(6):74-83.
[7]高德潜.地震烈度衰减关系统计方法的探讨[J].国际地震动态,1996(3):6-10.
[8]龙锋,闻学泽,徐锡伟.华北地区地震活断层的震级-破裂长度、破裂面积的经验关系[J].地震地质,2006,28(4):511-535.
[9]张建福,成小平,姜立新,等.基于面积统计的震后烈度评估[J].自然灾害学报,2005,14(1):76-81.
[2]汪素云,俞言祥.中国分区地震动衰减关系的确定[J].中国地震,2000,16(2):99-106.
[3]李英民,蔡辉腾,韩军.重庆及邻近地区地震烈度衰减关系研究[J].防灾减灾工程学报,2007,27(1):17-22,42.
[4]雷建成,高孟潭,俞言祥.四川及邻区地震动衰减关系[J].地震学报,2007,29(5):500-511.
[5]袁一凡.四川汶川8.0级地震损失评估[J].地震工程与工程振动,2008,28(5):10-19.
[6]徐国栋,方伟华,史培军,等.汶川地震损失快速评估[J].地震工程与工程振动,2008,28(6):74-83.
[7]高德潜.地震烈度衰减关系统计方法的探讨[J].国际地震动态,1996(3):6-10.
[8]龙锋,闻学泽,徐锡伟.华北地区地震活断层的震级-破裂长度、破裂面积的经验关系[J].地震地质,2006,28(4):511-535.
[9]张建福,成小平,姜立新,等.基于面积统计的震后烈度评估[J].自然灾害学报,2005,14(1):76-81.
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