烈度快速评估中的实时修正方法研究
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摘要
地震灾情是应急救灾的首要信息,烈度分布是估计灾情的重要基础。为能更合理地进行烈度快速评估,本文提出了一种改进的椭圆烈度衰减模型,即建立椭圆长轴半径和短轴半径长度矩阵,并通过历史资料回归得出半径长度矩阵的初始值,而后根据现场调查数据,采用基于LMS算法的修正方法实时对半径长度矩阵进行修正,画出地震烈度等震线图,称之为地震烈度衰减的矩阵模型,并以1996年丽江7.0级地震为算例验证了本文模型的实用性。
The earthquake damage emergency assessment work requires the isoseismal line to be constantly revised according to the updated information.So,this paper proposes an improved ellipse intensity-attenuation model,which is completed by the establishment of semi-major axis and semi-minor axis length matrix.Based on the initial value of the length matrix got by the regression of historical data and survey data from the site,we use the LMS algorithm to revise the length matrix and draw the isoseismal line,which is called the matrix intensity-attenuation model.In the end,the practicability of this model is verified by the case of Lijiang 7.0 earthquake.
The earthquake damage emergency assessment work requires the isoseismal line to be constantly revised according to the updated information.So,this paper proposes an improved ellipse intensity-attenuation model,which is completed by the establishment of semi-major axis and semi-minor axis length matrix.Based on the initial value of the length matrix got by the regression of historical data and survey data from the site,we use the LMS algorithm to revise the length matrix and draw the isoseismal line,which is called the matrix intensity-attenuation model.In the end,the practicability of this model is verified by the case of Lijiang 7.0 earthquake.
引文
[1]胡聿贤.地震工程学[M].2版.北京:地震出版社,2006.HU Yuxian.Earthquake engineering[M].2nd ed.Beijing:Seismological Press,2006.(in Chinese)
[2]鄢家全,李金臣,俞言祥,等.论宏观震中及其快速估定方法[J].震灾防御技术,2010,5(4):409-417.YAN Jiaquan,LI Jinchen,YU Yanxiang,et al.Discussion of the macro-epicentre and the method of rapid estimation[J].Technology for EarthquakeDisaster Prevention,2010,5(4):409-417.(in Chinese)
[3]李闽峰,李圣强,陈禺页,等.探讨地震宏观破坏场分布的影响因素[J].中国地震,2000,16(4):293-306.LI Minfeng,LI Shengqiang,CHEN Rong,et al.Study on the main affected factors of the distribution of the macro-field of earthquake[J].Earth-quake Research in China,2000,16(4):293-306.(in Chinese)
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[5]GB/T17742-2008中国地震烈度表[S].GB/T17742-2008The Chinese Seismic Intensity Scale[S].(in Chinese)
[6]GB18306-2001中国地震动参数区划图[S].GB18306-2001Seismic Ground Motion Parameter Zonation Map of China[S].(in Chinese)
[7]汪素云,俞言祥,高阿甲,等.中国分区地震动衰减关系的确定[J].中国地震,2000,16(2):99-106.WANG Suyun,YU Yanxiang,GAO Ajia,et al.Development of attenuation relations for ground motion in China[J].Earthquake Research in Chi-na,2000,16(2):99-106.(in Chinese)
[8]肖亮,俞言祥.中国西部地区地震烈度衰减关系[J].震灾防御技术,2011,6(4):358-371.XIAO Liang,YU Yanxiang.Earthquake intensity attenuation relationship in western China[J].Technology for Earthquake Disaster Prevention,2011,6(4):358-371.(in Chinese)
[9]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.LEI Jiancheng,GAO Mengtan,YU Yanxiang,et al.Seismic motion attenuation relations in Sichuan and adjacent areas[J].Acta Seismologica Sini-ca,2007,29(5):500-511.(in Chinese)
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[11]孙继浩,帅向华.川滇及其邻区中强地震烈度衰减关系适用性研究[J].地震工程与工程振动,2011,31(1):11-18.SUN Jihao,SHuai Xianghua.Study on moderate-strong seismic intensity attenuation relations in Sichuan-Yunnan and its adjacent areas[J].Jour-nal of Earthquake Engineering and Engineering Vibration,2011,31(1):11-18.(in Chinese)
[12]许卫晓.地震烈度快速评估方法研究[D].哈尔滨:中国地震局工程力学研究所,2011.XU Weixiao.The study of methods for rapid assessment of seismic intensity distribution[D].Harbin:Institute of Engineering Mechanics,ChinaEarthquake Administration,2011.(in Chinese)
[13]刘影.基于LMS算法的自适应滤波器仿真实现[J].现代电子技术,2008,19:74-76.LIU Ying.Implementation of adaptive filter simulation based on LMS algorithm[J].Modern Electronics Technique,2008,19:74-76.(in Chinese)
[14]陈棋福.中国震例(1995-1996)[M].北京:地震出版社,2002.CHEN Qifu.Earthquake cases in China(1995-1996)[M].Beijing:Seismological Press,2002.(in Chinese)
[2]鄢家全,李金臣,俞言祥,等.论宏观震中及其快速估定方法[J].震灾防御技术,2010,5(4):409-417.YAN Jiaquan,LI Jinchen,YU Yanxiang,et al.Discussion of the macro-epicentre and the method of rapid estimation[J].Technology for EarthquakeDisaster Prevention,2010,5(4):409-417.(in Chinese)
[3]李闽峰,李圣强,陈禺页,等.探讨地震宏观破坏场分布的影响因素[J].中国地震,2000,16(4):293-306.LI Minfeng,LI Shengqiang,CHEN Rong,et al.Study on the main affected factors of the distribution of the macro-field of earthquake[J].Earth-quake Research in China,2000,16(4):293-306.(in Chinese)
[4]陈达生,刘汉兴.地震烈度椭圆衰减关系[J].华北地震科学,1989,7(3):31-42.CHEN Dasheng,LIU Hanxing.Elliptical attenuation relationship of earthquake intensity[J].North China Earthquake Sciences,1989,7(3):31-42.(in Chinese)
[5]GB/T17742-2008中国地震烈度表[S].GB/T17742-2008The Chinese Seismic Intensity Scale[S].(in Chinese)
[6]GB18306-2001中国地震动参数区划图[S].GB18306-2001Seismic Ground Motion Parameter Zonation Map of China[S].(in Chinese)
[7]汪素云,俞言祥,高阿甲,等.中国分区地震动衰减关系的确定[J].中国地震,2000,16(2):99-106.WANG Suyun,YU Yanxiang,GAO Ajia,et al.Development of attenuation relations for ground motion in China[J].Earthquake Research in Chi-na,2000,16(2):99-106.(in Chinese)
[8]肖亮,俞言祥.中国西部地区地震烈度衰减关系[J].震灾防御技术,2011,6(4):358-371.XIAO Liang,YU Yanxiang.Earthquake intensity attenuation relationship in western China[J].Technology for Earthquake Disaster Prevention,2011,6(4):358-371.(in Chinese)
[9]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.LEI Jiancheng,GAO Mengtan,YU Yanxiang,et al.Seismic motion attenuation relations in Sichuan and adjacent areas[J].Acta Seismologica Sini-ca,2007,29(5):500-511.(in Chinese)
[10]周正红,何少林,陈文凯.甘肃省地震烈度衰减关系研究[J].西北地震学报,2010,31(1):72-75.ZHOU Zhenghong,HE Shaolin,CHEN Wenkai.Study on the attenuation relationship of seismic intensity in Gansu Province[J].NorthwesternSeismological Journal,2010,31(1):72-75.(in Chinese)
[11]孙继浩,帅向华.川滇及其邻区中强地震烈度衰减关系适用性研究[J].地震工程与工程振动,2011,31(1):11-18.SUN Jihao,SHuai Xianghua.Study on moderate-strong seismic intensity attenuation relations in Sichuan-Yunnan and its adjacent areas[J].Jour-nal of Earthquake Engineering and Engineering Vibration,2011,31(1):11-18.(in Chinese)
[12]许卫晓.地震烈度快速评估方法研究[D].哈尔滨:中国地震局工程力学研究所,2011.XU Weixiao.The study of methods for rapid assessment of seismic intensity distribution[D].Harbin:Institute of Engineering Mechanics,ChinaEarthquake Administration,2011.(in Chinese)
[13]刘影.基于LMS算法的自适应滤波器仿真实现[J].现代电子技术,2008,19:74-76.LIU Ying.Implementation of adaptive filter simulation based on LMS algorithm[J].Modern Electronics Technique,2008,19:74-76.(in Chinese)
[14]陈棋福.中国震例(1995-1996)[M].北京:地震出版社,2002.CHEN Qifu.Earthquake cases in China(1995-1996)[M].Beijing:Seismological Press,2002.(in Chinese)
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