上海交通大学学报

上海交通大学学报（自然版） ›› 2013, Vol. 47 ›› Issue (02): 248-252.

• 交通运输 • 上一篇    下一篇

隧道内缓冲结构对高速列车微压波的影响

臧俊，薛雷平   

  1. (上海交通大学 船舶海洋与建筑工程学院, 上海 200030)
  • 收稿日期:2012-03-30 出版日期:2013-02-28 发布日期:2013-02-28

The Influence of Baffle Structure on Micro-pressure Wave Generated by High-speed Train Entering a Tunnel

 ZANG  Jun, XUE  Lei-Ping   

  1. (School of Navel Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai 200030,China)
  • Received:2012-03-30 Online:2013-02-28 Published:2013-02-28

摘要： 摘要： 
采用数值方法模拟列车通过隧道的过程，并使用前人的实验数据对计算模型进行了验证.研究了隧道内挡板缓冲结构对微压波强度的影响，揭示挡板装置产生微压波的双峰特征，得到挡板大小和挡板安装位置对微压波强度的影响规律.结果表明，在隧道内合理地安装挡板能有效地削减隧道内压缩波强度，从而削减隧道出口处微压波强度.  

关键词: 高速列车, 微压波, 隧道, 挡板缓冲结构, 数值模拟

Abstract: A compressive wave will be generated when a high-speed train enters a tunnel. Then the compressive wave will travel with the velocity of sound to the outlet of the tunnel and radiate a micro-pressure wave into the field outside of the tunnel. A numerical method was used to simulate the process that the highspeed train enters a tunnel. Also the experimental data was used to verify the computational model. On this base, the influence of the baffle structure on the micro-pressure wave was studied. The result shows that two micropressure waves will be generated with the baffle assembled in the tunnel. Also we the influence of the position and size of the baffle on the micro-pressure wave was got.

Key words: high-speed train, micropressure wave, tunnel, baffle structure, numerical simulation

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