TUNNEL VENTILATION APPARATUS AND UNDERGROUND FACILITY USING THE SAME

PROBLEM TO BE SOLVED: To provide tunnel ventilation apparatus feeding and exhausting low-oxygen air or high-oxygen air for forming training facilities of low-oxygen environment and treatment facilities with high-oxygen environment using a tunnel-shaped underground space or the like; and underground facilities using the same. SOLUTION: This tunnel ventilation equipment includes an air-pipe 10 extending from an entrance of a tunnel 1 to the deepest part of the tunnel and provided with a plurality of air feed ports at a prescribed interval for feeding fresh air, and an air suction pipe 20 extending from the deepest part of the tunnel to the entrance and provided with a plurality of air suction ports at a prescribed interval for sucking exhaust; wherein the air-pipe 10 and the air suction pipe 20 have opening areas per a prescribed interval which gradually enlarge as the distance from the entrance toward the end of the deepest part is increased and the air feed ports 10a and the air suction ports 20a are formed to uniformize the feed/suction airs in the underground space. COPYRIGHT: (C)2008,JPO&INPIT