列车振动荷载作用下隧道衬砌结构动力响应特性分析
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摘要
论述隧道衬砌结构动力有限元分析的理论与数值计算方法,并以京广线朱亭隧道列车振动荷载现场测试成果为基础,通过对3种不同断面形状的隧道衬砌结构的动力响应特征进行分析研究,可获得隧道衬砌结构竖向位移、竖向加速度及各种内力时程曲线。研究成果对评价既有提速铁路隧道衬砌结构的动力稳定性和完善铁路隧道结构的设计理论具有一定的指导意义。
A theory of dynamic FEM and a numerical method for the lining structure of tunnels are put forward.Based on in-situ measurement results of vibration loads for the train running on the Zhuting tunnel of Beijing—Guangzhou Line,the dynamic response characteristics for three types of tunnels with different cross-sections are investigated.And then,the distributing characteristics of the vertical displacements and internal forces are obtained for the lining structures of three types of tunnels.The research results have important denotation not only for the dynamic stability evaluation of tunnel structures for speeded railway but also for the tunnel design and construction of railway.
A theory of dynamic FEM and a numerical method for the lining structure of tunnels are put forward.Based on in-situ measurement results of vibration loads for the train running on the Zhuting tunnel of Beijing—Guangzhou Line,the dynamic response characteristics for three types of tunnels with different cross-sections are investigated.And then,the distributing characteristics of the vertical displacements and internal forces are obtained for the lining structures of three types of tunnels.The research results have important denotation not only for the dynamic stability evaluation of tunnel structures for speeded railway but also for the tunnel design and construction of railway.
引文
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[3]高峰.铁路隧道列车振动影响分析[J].兰州铁道学院学报,1998,17(2):6–12.(Gao Feng.Analysis of dynamic responses of a railway tunnel subjected to train loading[J].Journal of Lanzhou Railway University,1998,17(2):6–12.(in Chinese))
[4]赖远明,吴紫汪,朱元林,等.寒区隧道地震响应的弹黏塑性分析[J].铁道学报,2001,23(6):84–89.(Lai Yuanming,Wu Ziwang,Zhu Yuanlin,et al.Elasto-visco-plastic analysis of earthquake response of tunnels in cold regions[J].Journal of the China Railway Society,2001,23(6):84–89.(in Chinese))
[5]郑颖人,沈珠江,龚晓南.岩土塑性力学原理[M].北京:中国建筑工业出版社,2002.(Zheng Yingren,Shen Zhujiang,Gong Xiaonan.Principles of Geotechnical Plastic Mechanics[M].Beijing:China Architecture and Building Press,2002.(in Chinese))
[6]朱合华.同济曙光软件使用指南[R].上海:同济大学地下建筑与工程系,2000.(Zhu Hehua.Directory of Tongji-geo[R].Shanghai:Department of Geotechnical Engineering,Tongji University,2000.(in Chinese))
[7]王祥秋.提速与高速铁路隧道结构动力响应分析与相关技术问题研究[博士学位论文][D].上海:同济大学,2004.(Wang Xiangqiu.Dynamic response analysis and relevant technology study on the tunnel structure of raising and high-speed railway[Ph.D.Thesis][D].Shanghai:Tongji University,2004.(in Chinese))
[8]孙钧,汪炳鑑.地下结构有限元解析[M].上海:同济大学出版社,1986.(Sun Jun,Wang Bingjian.Analysis of Finite Element for Underground Structure[M].Shanghai:Tongji University Press,1986.(in Chinese))
[9]唐友刚.高等结构动力学[M].天津:天津大学出版社,2002.(Tang Yougang.Advanced Dynamic Mechanics of Structure[M].Tianjin:Tianjin University Press,2002.(in Chinese))
[10]Deeks A J,Randolph M F.Axisymmetric time-domain transmitting boundaries[J].Journal of Engineering Mechanics,ASCE,1994,120(1):25–42.
[11]刘晶波,昌彦东.结构–地基动力相互作用问题分析的一种直接方法[J].土木工程学报,1998,31(3):55–64.(Liu Jingbo,Chang Yandong.A direct method for analysis of dynamic soil structure interaction[J].China Civil Engineering Journal,1998,31(3):55–64.(in Chinese))
[12]王祥秋,杨林德,高文华.铁路隧道提速列车振动测试与荷载模拟[J].振动与冲击,2005,24(3):99–102.(Wang Xiangqiu,Yang Linde,Gao Wenhua.In-situ vibration measurement and load simulation of the raising speed train in railway tunnel[J].Journal of Vibration and Shock,2005,24(3):99–102.(in Chinese))
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