【摘要】 目的为降低地震台阵成本,同时满足地震预警系统的有效预警时间要求,合理布置地震台阵.方法基于双台子台阵地震定位方法,通过合理设置优化设计变量、目标函数和约束条件,建立地震台阵布局优化设计模型,并采用IHGA对台阵布局进行优化设计.结果对沈阳市地震预警系统台阵布局进行优化设计,建立了相应的台阵布局优化设计模型,使不同发震点发震时对任一预警对象的有效预警时间均能满足地震预警系统最低设防要求,平均有效预警时间得到大幅增加.结论建立的地震预警系统的台阵布局优化设计模型与所采用的优化设计方法可以达到要求,并取得了较好的效果.更多还原

【Abstract】 The paper aims to reduce seismic array cost and at the same time to meet the demands of effective early warning time of the earthquake early warning system.Based on earthquake allocation method with a two station sub-array,the optimization design model of seismic array layout was established through determine optimization design variables,objective function and constraint condition reasonably.The seismic array layout of the earthquake early warning system of Shenyang city is optimized with IHGA.The results of examples show that the average effective early warning time is significantly increased.Moreover,the effective early warning time of any early warning object can meet the lowest resistant requirements of earthquake early warning system when the earthquake happened in different locations.Therefore,the optimization design model of seismic array layout of the earthquake early warning system and the method of optimization design can obtain better effects.更多还原