300KM/H급 고속철도의 터널미기압파 저감을 위한 슬릿후드의 실험적 연구

초록

The purpose of present study in to investigate for reducing micro pressure waves generated according to train speeds through tunnels with countermeasures as followings, the hood configuration in tunnel entrance. We developed hoods for tunnel of 0.5km length in the condition of tunnel cross-section area of 107m2 on the slab track. According to the results, the maximum micro-pressure wave is reduced by 41.2% for the slit hood installed at the entrance of the tunnel and reduced by 47.7% for the slit hood installed at the entrance of the tunnel and the 45 slanted portal at the exit of the tunnel?