为了建立包头地区土层地震反应分析模型,在包头地区工程场地地质的基础上,通过的数值解析方法,建立层地震分析模型,得到了场地50年超越概率63%、40%、10%、2% 四个概率水平的地表和不同深度位置的地震动参数,反应谱值等设计参数.本文研究结果可作为轨道交通建设工程抗震设防的参考依据,具有实际参考价值.%Based on the seismic geological conditions in Baotou area, the seismic response of soil layer was analyzed by one -dimen-sional equivalent linear method on the basis of seismic risk analysis.The peak accelerations of 63%,40%,10%and 2% in the 50 years at different locations of the site were calculated,and the ground motion parameters and response spectrum on four probability lev-els in different depth were obtained.The results can be used as reference for seismic fortification in this area,providing practical value for seismic fortification of rail transit construction projects.
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