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http://dx.doi.org/10.14481/jkges.2011.12.3.3

Development of Noise-proof Facility Considered with Soundproofing Materials in a Tunnel Blasting  

Jeoung, Jae-Hyeung (한국건설기술연구원)
Won, Yeon-Ho (원앤비 기술사사무소)
Publication Information
Journal of the Korean GEO-environmental Society / v.12, no.3, 2011 , pp. 27-35 More about this Journal
Abstract
This study investigated a sound reduction degree by each soundproofing materials and the sound pressure level of a main frequency range to develop soundproofing facilities installed for reducing sound in a tunnel blasting. The frequency range and sound pressure level of soundproofing materials(eg. sand and water etc.) mainly used at a working spot were measured using the experimental apparatus considered with blasting situation. The full scale pilot test was also carried out using developed soundproofing facilities in this study. And the performance of developed soundproofing facilities was analyzed. As a result, the developed soundproofing facilities using water in sound insulation materials could reduce about 10dB(A) of blasting noise in compare with the existing soundproofing facilities.
Keywords
Tunnel blasting; Soundproofing facilities; Sound pressure level; Main frequency;
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