基于空气动力学的客货共线铁路隧道内轮廓面积优化探讨  

Discussion on Optimization of Inner Contour Area of Mixed Passenger and Freight Railway Tunnel Based on Aerodynamics

作　　者：伊兴芳 曾青 马志富 程爱君[2] Yi Xingfang;Zeng Qing;Ma Zhifu;Cheng Aijun(China Railway Design Corporation,Tianjin 300142,China;China Academy of Railway Sciences,Beijing 100081,China)

机构地区：[1]中国铁路设计集团有限公司,天津300142 [2]中国铁道科学研究院,北京100081

出　　处：《铁道建筑技术》2018年第7期1-3,共3页Railway Construction Technology

基　　金：中国铁路总公司科技研究开发计划课题(J2016Z024)

摘　　要：与常规铁路隧道不同,客货共线铁路隧道内轮廓有效净空面积大小尚应考虑列车类型、车辆密封性和旅客舒适度等因素,通过对速度160km/h、200km/h的普通旅客列车和动车组交会时空气动力学效应仿真分析,结合我国目前列车车辆密封性性能情况,提出新建客货共线铁路隧道适度标准按照1.25 kPa/3s控制,当普通旅客列车密封指数达到2s,时速200km双线隧道内轮廓有效净空面积可优化至76m^2。Unlike the tunnels on conventional railways, tunnels on mixed passenger and freight railway lines should be designed to take into consideration on the type of train, tightness of train and comfort of all passengers. Based on the simulation analysis of aerodynamics effect by ordinary passenger train and EMU for 160 km/h and 200 km/h, and considering current vehicle sealing performance in China, this paper proposed new mixed passenger and freight railway tunnel in accordance with the standard of 1.25 kPa/3 s, when the sealing index of ordinary passenger train reached 2 s, double-line tunnel inner contour section could be optimized to 76 m^2 for 200 km/h.

关 键 词：客货共线 隧道内轮廓 空气动力学 仿真分析 

分 类 号：U451.3[建筑科学—桥梁与隧道工程]