摘要
通过考虑各个建筑间遮挡、反射和声源指向性等因素,结合噪声特性和降噪目标,对各个噪声源精确分析采用更优化的噪声控制措施。噪声实测结果表明,采取噪声治理措施后,敏感点(村庄)噪声值昼间降低至55 d B(A)以下,夜间降低至45d B(A)以下,使该项目顺利通过验收。
The factors affecting noise,including building block,reflection and noise source directivity,are introduced. Through combinaing the noise feature and the purpose of noise reduction,each noise source is analyzed to better optimize the noise control measures. The noise measurement results show that noise-sensitive-area（ village） can meet the requirements of the standard noise,leading to the acceptance of this project.
出处
《现代化工》
CAS
CSCD
北大核心
2016年第4期192-194,196,共4页
Modern Chemical Industry
关键词
降噪量
隔声
消声
指向性
noise source
sound absorption
sound insulation
directivity
