Field Tests on the Pressure Transients in Train-Tunnel Interfaces on the Korean Railway

초록

A series of field tests was performed to investigate the pressure transients in tunnels for high-speed as well as for conventional railway. A total of 25 measurements were made at the tunnels during the passage of trains including the Mugunghwa and Saemaul trains at about 100km/h, G7 train at up to 250km/h, and KTX train at up to 300km/h. Results showed typical pressure waves generated upon the passage of a train through a tunnel. As the principal driver of the pressure transients in a tunnel, the entry compression wave was extensively discussed and compared with theoretical solutions.