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| 概要 |
When a high-speed railway train enters a tunnel, it generates a compression wave ahead of it. Then the wave is propagated through the tunnel, and causes a pressure pulse which is called a micro-pressu...re wave when it arrives at the tunnel exit. In the past, compression waves generated by Shinkansen trains entering various tunnels were measured by West Japan Railway Company. The present paper shows the results of prime parameters such as pressure rise and waveform of the compression waves near the tunnel entrance measured in Shinkansen train-tunnel system. Using these results， the formation process of compression wave by a train entering a tunnel is discussed.続きを見る
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