Sound proof structure of temporary enclosure for construction site and advanced muffler

摘要

PROBLEM TO BE SOLVED: To provide a soundproof structure of a temporary enclosure for a construction site, which can reduce noises diffused toward a ground surface outside a construction lot in such a manner as to get over the top of the temporary enclosure.SOLUTION: A soundproof structure 2 of a temporary enclosure for a construction site includes the temporary enclosure 4 that has a panel 20 erected to screen the construction site from the outside, and a tip-improved type silencer 24 that is arranged near an upper end of the panel 20. The tip-improved type silencer 24 has a hook 44, and the hook 44 is engaged with the temporary enclosure 4. This structure enables the tip-improved type silencer 24 to be easily attached to/detached from the temporary enclosure 4, and enables a reduction in noise. Additionally, the soundproof structure 2 also includes a sound insulation cover 46 for closing a gap between the panel 20 and the tip-improved type silencer 24.