用遗传算法反演内蒙古中西部地区的Q值和场地响应

INVERSING THE Q VALUE AND SITE RESPONSE IN MIDDLE AND WEST PART OF INNER MONGOLIA WITH GENETIC ALGORITHM

  • 摘要: 在前人研究的基础上, 本文用遗传算法反演了内蒙古中西部地区(106.85°E~113.13°E, 36.69°N~41.57°N)的Q值和场地响应。发现用Atkinson方法得到的非弹性衰减系数c(f)与频率f无关, 品质因子Q(f)是仅与频率有关的线性强函数, 而与非弹性衰减系数无关。另外在将c(f)等参数代入moya方法求台站场地响应的过程中发现, 有些基岩台站有放大作用。

     

    Abstract: Through inversing the Q value and site response in middle and west part of Inner Mongolia (106.85°~113.13°E, 36.69°~41.57°N) we found that, the non-elastic attenuation coefficient c(f) obtained from Atkinson method is incoherent with frequency f, and quality factor Q(f), which is only a linear function of frequency, is not relevant to non-elastic attenuation coefficient.In addition, bringing the parameters, such as (c(f),) into Moya method to calculate site response, we found some bedrock observatories have magnify effect.

     

/

返回文章
返回