年次大会講演論文集
Online ISSN : 2433-1325
セッションID: 1720
会議情報
超長大スラブ軌道トンネル内を伝播する圧縮波の変形(G05-4 トンネルの排気・排煙・圧力・集じん,G05 流体工学部門一般講演)
福田 傑飯田 雅宣鷹崎 徹佐久間 豊菊地 勝浩村田 香若林 雄介
著者情報
会議録・要旨集 フリー

詳細
抄録
Field measurement and numerical simulation are performed on the distortion of a compression wave propagating through a slab-track tunnel longer than 20 km, which is the longest on the ground in the world. The compression wave which is generated by a train entering the tunnel is measured with 12 pressure transducers set along the wall inside the tunnel. In the numerical simulation, the distortion of the compression waveform is calculated by one-dimensional compressible flow analysis combined with acoustic analysis on the effect of side branches. The results show that the compression wavefront steepens in the early stage but smoothes down in the later stage of propagation.
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© 2004 一般社団法人日本機械学会
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