NOISE CONTROL CONSTRUCTING METHOD OF RAIL WAY USING NOISE ABSORBING PLATE

摘要

PURPOSE: A sound absorbing plate for the railway concrete roadbed, a sound absorbing construction method using the same and a sound absorbing structure are provided to reduce the repair and maintenance cost of the sound absorbing plate and railway concrete roadbed by easily installing and removing an absorbing plate. CONSTITUTION: A sound absorbing plate for the railway concrete roadbed comprises a plurality of convex portions(10) and a plurality of concave portions(11). The convex portion is formed in the longitudinal direction one side of the sound absorbing plate into the traverse direction. The convex portion is projected with the thickness smaller than the total thickness of the sound absorbing plate from the top of one side. The concave portion is formed in the longitudinal direction other side face of the sound absorbing plate.