【摘要】 以地铁车站间的隧道为研究对象,在研究和分析有关资料的基础上,用快速拉格朗日有限差分法软件FLAC建立了二维数值分析模型,并以列车振动加速度时程作为模型输入,进行了隧道衬砌-地层的整体动力学分析,分析了列车运行产生的振动在地面的衰减规律,得到了一些结论,可为地面建筑的防振减振控制提供参考。更多还原

【Abstract】 Based on literature review and observed data analysis, a plane subwaysoil system model is built with FLAC (Fast Lagrangian Analysis of Continua) to evaluate the ground motion . By inputing the acceleration history of subwwy shork, dynamic analysis of subwaysoil system for the tunnel between the subway stations is completed and the propagation attenuation law of the ground motion induced by subway shock is studied. Some conclusions are drawn and can be used for reference in vibration control and buffer design of the ground structure.更多还原