Reducing Low-Frequency Noise from Tunnel Blasting Using Noise-Reduction Tubes
First written in FY2018. 2 of 3 entries say "Advanced", first in FY2019. Latest entry: FY2020.
No other company in this theme has enough history to compare yet.
- FY2020AdvancedAnnual report
「In fiscal 2019, the company applied the technology's sound-absorption effect to noise reduction in caisson construction, used it for noise control in substructure construction for a bridge in Kanagawa Prefecture, and confirmed its noise-reduction effect.」
The company applied Silence Tube's derivative technology to noise control in bridge substructure construction and advanced to the stage of confirming its noise-reduction effect. - FY2019AdvancedAnnual report
「In fiscal 2018, the company developed sound-absorption equipment that applied the technology's sound-absorption effect to noise reduction in caisson construction, and advanced its application to noise control in substructure construction for a bridge in Kanagawa Prefecture.」
The company applied Silence Tube's sound-absorption effect to caisson construction and advanced to the application stage for noise control in bridge substructure construction. - FY2018First statedAnnual report
「In fiscal 2017, the company received the Environmental Design Award from the Institute of Noise Control Engineering of Japan. It also conducted research and development to apply the technology's sound-absorption effect to noise reduction in caisson construction.」
The sound-absorption equipment for reducing low-frequency noise received an external award, and the company is also pursuing research into its application to caisson construction.