• Title/Summary/Keyword: 소음피해

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양록단신

  • 한국양록협회
    • Korean Deer Journal
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    • v.10 no.1
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    • pp.8-8
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    • 2005
  • 미국산 사슴고기 수입 `진위` 논란 - 중국, 한국 녹용수입제도 `시비` - 관세청, 불법녹용 단속 강화 - 군 훈련소음 피해 국가가 배상해야

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A Reduction Effect in Noise Reflection by Different Shapes of Soundproofing-panel (도로소음원에 대한 방음패널 형상별 반사소음 저감효과)

  • Kim, Ilho;Park, Taeho;Chang, Seoil;Lee, Haein
    • Journal of Korean Society of Environmental Engineers
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    • v.37 no.2
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    • pp.120-125
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    • 2015
  • With rapid urbanization, the volume of traffic in urban area has been significantly increased. This in turn led to problem which can be described as Road Traffic Noise. Currently, to alleviate the road traffic noise damage, a demand for installation of soundproofing walls is rising. Among different shapes of soundproof walls being installed, the reflection-type acoustical insulation panel is highly drawing attentions of residents due to the fact that it does not obstruct their field of vision in contrast with the opaque acoustical insulation panel. On the other hand, improving the soundproofing wall of the reflection-type acoustical insulation barrier panel needs to be focused on since it has a possibility to cause a secondary damage by reflected sounds. Therefore, in this research, study has been carried out to improve the forms in order to minimize travelling of reflected sounds through changing the frontal surface shape and geometrical shape of the reflection-type soundproofing panel. A result from comparison between the normal reflection-type soundproofing panel and the improved soundproofing panel, with reduction effects in the noise reflection, showed that the curved type of soundproofing panel has an impact on reducing the noise up to 1.5 dB. Furthermore, from the research conducted, it appears that the increase and decrease in the reflected sounds can be changeable depending on various design factors. Thus, it turns out that the study shows a potential possibility to develop a reduction technology of the reflected sounds pertaining to overall condition on the soundproofing walls.