철도터널 통풍공의 공기역학적 성능에 대한 연구

초록

Purpose of the present is to investigate for reducing pressure fluctuations in the case of instealling the air-shafts on the side wall of the tunnel small cross-sectional area on conventional line. Experiments werw performed with a 1.61-scale moving model rig for the tunnel of 0.764km length in the condition od tunnel cross-section area of 28㎡. According to the results, the maximum pressure fluctuation is reduced by 45% for 19% sir-shafts. This results have the speed-up effects of about 33.4 km/h for the train running in tunnel.