INSTALLATION OF THE CEILING USING SOUNDPROOF BRICKS FOR PREVENTING SOUND WAVES IN A TUNNEL, FOR REDUCING NOISE WHEN A VEHICLE PASSES THROUGH A TUNNEL

摘要

PURPOSE: The installation of the ceiling using soundproof bricks for preventing sound waves in a tunnel is provided to promote safe and quiet traveling by absorbing sound waves caused by moving vehicles to the ground in a tunnel before reflecting and going out to the air. CONSTITUTION: For the installation of the ceiling using soundproof bricks for preventing sound waves in a tunnel, a brick installed on the ceiling is formed to be pointed toward a tunnel for absorbing sound waves and to prevent the sound caused by vehicles such as a train passing through a tunnel from being collide and reflected to a ceiling wall of a tunnel.