【摘要】 针对地铁区间隧道结构,基于粘弹性人工边界单元,利用大型通用有限元ABAQUS软件建立了考虑土-结构动力相互作用的地铁区间隧道的三维有限元计算模型,研究地铁区间隧道衬砌结构和车站结构的地震响应及影响因素.分析区间隧道在不同地震波作用下的地震反应,比较SV及P波方式传播的影响,对比分析区间隧道衬砌结构在不同衬砌厚度、采用不同衬砌材料情况下衬砌结构的地震反应.明确了在地震作用下区间隧道容易遭受破坏的一些薄弱部位,设计时应重视这些薄弱部位的抗震设计,对薄弱部位进行加强.总结了一些区间隧道的地震响应规律,对区间隧道的抗震设计具有参考意义.更多还原

【Abstract】 Under the frame work of soil-structure dynamic interaction theories and viscous artificial boundary element,a finite element model of soil-structure interaction with the help of ABAQUS software has established.Seismic responses of subway tunnel’s lining structure and station structure are analyzed,including factors which influent it.Three-dimensional subway interval tunnel finite element model is established with ABAQUS software.The interval tunnel seismic responses are analyzed under different seismic waves,including SV waves and P waves.The seismic response of interval tunnels are studied with different lining thickness,different lining materials,different geologic conditions and different directions of seismic waves.The corresponding influence disciplinarians are obtained.更多还原