고속철도에서 슬릿커버후드의 터널 미기압파 저감성능 관한 연구(Ⅱ)

초록

Purpose of this paper is to investigate the hood configuration at a tunnel entrance to reduce the micro pressure wave that is generated according to train speed. Two configurations were examined for the tunnel of 0.5 km in length. The experimental results show that a slit cover hood installed at the entrance of the tunnel reduces the maximum micro pressure wave by 41.2%, and the configuration with a slit cover hood installed at the entrance and the 45°slanted portal at the exit of the tunnel suppress the pressure wave by 47.7%