SOUNDPROOF TUNNEL FOR EXISTING BRIDGE AND ITS CONSTRUCTION METHOD

摘要

The present invention relates to a soundproof tunnel that prevents the propagation and spread of traffic noise by closing the upper part of an existing bridge, and protrusions 50 are formed at both ends of the upper coping 11 of the pier 10 , The protrusion 50 supports a soundproof tunnel in which a plurality of soundproof plates 30 are coupled to the structural wall 40 and the horizontal bone 45. Through the present invention, it is possible to install a soundproof tunnel without a major renovation or a new structure around or under an existing bridge, and it is possible to maintain the traffic handling capability of the existing bridge despite the installation of the soundproof tunnel.