兖州市城市规划区地震构造环境与地震动特征  

Seismotectonic environment and ground motion characteristics of Yanzhou urban planning area

作　　者：陈时军[1] 王冬雷[1] 崔娜[1] 徐溶[1,2] 孙昭民[1] 陶九庆[1] 张昊[1] 姜韬 李世印 

机构地区：[1]山东省地震局,济南25014 [2]中国地震局兰州地震研究所,兰州730002 [3]兖州市地震局,兖州272100

出　　处：《地球物理学进展》2013年第6期2852-2864,共13页Progress in Geophysics

基　　金：山东省科技发展项目(2010GSF10806);山东省防震减灾十五重点项目(SD105DZ04035)共同资助

摘　　要：简要分析了究州市城市规划区所处的地震构造环境、历史地震影响以及场地工程地震地质条件,利用地震危险性概率分析方法确定了50年超越概率为63%、10%和2%时兖州市城市规划区平均场地条件下的地震烈度、基岩地震动参数,并依据一维剪切波理论进行了场地地震反应分析,得到了兖州市城市规划区地表场地相关地震动参数.结果显示,兖州市城市规划区50年超越概率为10%时(重现期约500年)峰值地震加速度属于0.10 g范畴(相当于地震烈度Ⅶ度).这一结果被新修订《中华人民共和国地震动参数区划图》所吸收.In this paper, we briefly introduced surrounding seisotectonic environment, analyzed historical earthquake influence, and investigated the engineering seismic geological conditions of the Yanzhou city urban planning area. And more, the intensities with average site as well as seismic ground motion parameters with bedrock condition given exceedance probability of 63%, 10% and 2% in 50 years were evaluated respectively, by using probabilistic seismic hazard analysis method. On the basis, we calculated ground motion site response according to one-dimensional shear-wave theory so as to draw site related ground motion parameters. Results show that the peak seismic acceleration in the area is belong to 0.10g（equivalent to intensity Ⅶ） given exceedance probability 10% in 50 years （corresponding to returning period about 500 years）. This result has been adopted by new version of the 《People＇s Republic of Ground Motion Parameter Zoning Map》.

关 键 词：地震构造环境 场地条件 地震动特征 兖州市城市规划区 

分 类 号：P315[天文地球—地震学]