TUNNEL FOR HIGH-SPEED ELECTRIC ROLLING STOCK Russian patent published in 1995 - IPC

FIELD: railway transport. SUBSTANCE: tunnel has roadway 1 of closed cross section to pass high-speed electric rolling stock. Closed chambers 6 are arranged in plan symmetrically relative to longitudinal axis of roadway from its sides. Main rarefaction building device 7 additional rarefaction building devices 8 are essentially fans, each arranged in above indicated chamber whose space communicates with space of roadway through inlet pipeline 9 and outlet pipeline 10 arranged at angle α to roadway longitudinal axis. EFFECT: enlarged operating capabilities. 4 dwg