预测汶川8.0级大地震地震动的震源模型  

Source model of the great Wenchuan earthquake 8. 0 for synthesis of strong ground motion

作　　者：刘海明[1] 陶夏新[2] 

机构地区：[1]招商局重庆交通科研设计院有限公司桥梁工程结构动力学国家重点实验室,重庆400067 [2]哈尔滨工业大学,黑龙江哈尔滨150090

出　　处：《土木工程学报》2013年第S1期139-145,共7页China Civil Engineering Journal

基　　金：国家"973"计划(2010CB736103);国家自然科学基金(51178151;51178435)

摘　　要：建立基于有限断层的汶川8.0级地震的混合震源模型。其中,全局参数主要根据区域地震构造、地壳结构、地震活动性和半经验标定公式估计。局部参数分两组,一组是描述凹凸体的,另一组是k平方模型参数,依标定公式估算均值和标准差,由截断的正态分布生成。该文展示了构造的30个震源模型。A finite fault based hybrid source model of the great Wenchuan earthquake with magnitude 8. 0 is built in this paper. The global parameters are mainly determined from the regional seismo-tectonics,structure of the crust,seismicity and a set of semi-experiential calibration laws. The local parameters consist of two groups. One is on asperity,the other one is on k square distribution. Both of them are generated from the truncated Normal distribution with mean and standard deviation values estimated by a set of calibration laws. 30 source models are presented finally.

关 键 词：强地震动 震源模型 有限断层 全局参数 局部参数 

分 类 号：P315.3[天文地球—地震学]