LINING PLATE FOR MEASURE AGAINST UNDERGROUND CONSTRUCTION WORK NOISE

摘要

PROBLEM TO BE SOLVED: To increase a sound insulation performance of a lining plate used usually at an underground construction work site and reduce noise under the ground to prevent work environment from worsening. SOLUTION: A lining plate for a measure against underground construction work noise is composed of a combination of the lining plate 1 and a sound absorption member 3 (excepting a sound absorption member composed of a fiber aggregate made of synthetic fibers) formed by providing a plurality of shape steels and connecting them integrally and mutually by welding, and the sound absorption member is arranged on a rear surface of or inside the lining plate.