高速铁路隧道洞口地形对微压波的影响分析  

Analysis on Influence of Terrain at Tunnel Exit of Express Railway on Micro-pressure Wave

作　　者：赵文成 

机构地区：[1]中铁第四勘察设计院城市轨道与地下工程设计研究院,武汉430063

出　　处：《路基工程》2013年第4期82-84,88,共4页Subgrade Engineering

基　　金：铁道部科技研究开发计划:高速铁路双线隧道缓冲结构深化研究(2010G018-C-2-1)

摘　　要：高速列车进入隧道后将产生一系列的空气动力学效应,其中隧道出口的微压波效应对人类环境的危害性较大。影响微压波的因素主要有:列车进入隧道的速度、隧道的阻塞比、隧道长度、隧道内部条件和隧道出口地形等。采用数值模拟方法,深入研究了隧道出口地形对微压波的影响,得到了隧道出口地形对微压波的影响特性。When high-speed train enters tunnel, a series of aerodynamic effects will be produced, in which the effect of micro-pressure wave at the exit is most harmful to human environment. The main factors affecting the micro-pressure wave are as follows： the train＇s speed when it enters the tunnel; blockage ratio of the tunnel; length of the tunnel; internal conditions of the tunnel and the terrain at the tunnel exit, etc. By numerical simulation, the influence of the terrain at the tunnel exit on the micro - pressure wave are intensively studied, and then the characteristics thereof are obtained.

关 键 词：高速列车 隧道 空气动力学 微压波 数值模拟 

分 类 号：U451.3[建筑科学—桥梁与隧道工程]