中文摘要：

高速列车在进出隧道时，会形成压缩波和微压波，引起车厢内压力变化并在隧道出口形成噪声，对乘客及环境造成影响。隧道阻塞比对气动效应的产生有非常重要的影响。利用高速列车模型实验系统，对列车进入隧道所形成的压缩波、微压波进行了测试分析，验证了压缩波的隧道阻塞比影响系数值，初步确定了阻塞比与微压波压力的理论关系，依据实验结果，确定了微压波的阻塞比影响系数的范围。

英文摘要：

When high-speed train entering tunnel, compression wave and micro-pressure wave will be created, which will result in the pressure fluctuation in carriages and noises at the tunnel exit. Train-tunnel dimension ratio has much effect on these phenomenon. Using the high-speed model experiment method, the compression and micro-pressure wave were measured and analyzed. The train-tunnel dimension ratio effect coefficient to the compression wave was verified. The initial function between train-tunnel dimension ratio and micro -pressure wave was built, and effect coefficient--the train-tunnel dimension ratio to the compression wave was got.