摘要
选择新疆地区的地震动衰减关系,采用概率方法计算了位于同一构造区的两个场地(A场地和B场地)的地震危险性,两个场地以基岩峰值加速度为标志的场地地震危险性结果相近。通过现场勘察与检测,场地A与场地B均为岩性不同的两个一元结构,岩性分别以砂砾石和粉土为主。采用一维土层反应等效线性化的计算方法得出场地A和场地B的土层反应。通过地震反应谱的特征分析,表明硬场地和软场地的强度和周期(或频率)特征是不同的,同时讨论了它们测试与判定中存在的问题。
Choosing earthquake attenuation relation of Xinjiang region, we used probability method to compute seismic fatalness of two sites, the seismic fatalness is similar according to bedrock peak acceleration of two sites. The lithology of two sites are different, one site is grit, another is power earth. Used equivalent line method of one dimension soil response to compute the soil response of two sites. Analylzed earthquake response spectrum characteristics, the result shows, the intensity and cycle characteristics of hard site and soft site are different, the questions in testing and determining were discussed.
出处
《内陆地震》
2007年第4期297-303,共7页
Inland Earthquake
关键词
土层反应
基岩峰值加速度
地震反应谱
地震危险性
Soil Response
Bedrock Peak Acceleration
Earthquake Response Spectrum
Seismic Fatalness
