利用场址的地震影响烈度资料的地震危险性分析  

Analysis on Seismic Risk by Making Use of Site Earthquake Response Intensity

作　　者：金学申[1] 靳艳萍[1] 赵军[1] 戴英华[1] 

机构地区：[1]河北省地震局,中国石家庄050021

出　　处：《中国地震》1993年第4期301-309,共9页Earthquake Research in China

摘　　要：本文提出一种依据场址历史地震资料进行危险性分析的方法。在证明其地震影响烈度的频次与相应的烈度值呈对数线性关系的基础上,利用最大似然法,求出β,λ和I_(max)并得出各场址的危险性分析结果。同时,用“逻辑树”方法对各场址的危险性结果进行不确定性校正,得到的各场址的危险性分析的最终结果表明,这种方法是可行的,尤对呈现过烈度异常的区域,本方法的结果更能显示其特殊性。Based on the site historical earthquake data a method of seismic risk analysis has been presented in this paper. Once the frequency of earthquake response intensity and the relative intensity value showed a logarithsic linear,the maximum similarity method would be need to obtain β,λ and Imax,and also achieve the results of risk analysis on each site. At the same time, the 'logic tree 'method can be need to calibrate the uncertainty of the risk on each site, then the final results of risk analysis indicate that this method is practically utilized, particularly for the sites showing intensity anomaly.

关 键 词：地震 影响烈度 危险性分析 场址 

分 类 号：P315.9[天文地球—地震学]