MICRO ATMOSPHERIC PRESSURE WAVE REDUCTION DEVICE AND TUNNEL STRUCTURE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a micro atmospheric pressure wave reduction device capable of preventing pressure in the device from increasing and capable of reducing its length, and a tunnel structure using the device.SOLUTION: A micro atmospheric pressure wave reduction device includes: an inlet part 11 opened so as to take a part of a compressive wave (W0) generated when a high speed train rushes into a tunnel 1; a passage 15 allowing a compressive wave (W2) taken from the inlet part 11 to pass therethrough; an outlet part 12 discharging the compressive wave (W2) having passed through the passage 15 into the tunnel 1 again; and barriers forming the passage 15 into a zigzag shape so that the length of the passage 15 becomes longer than a straight distance connecting the inlet part 11 with the outlet part 12.