摘要
详细分析了道路声屏障工程中常出现的声屏障底部漏声问题,并结合道路噪声特性,提出了一种专门用于解决这一问题的护栏声屏体技术。实例验证表明护栏声屏体使原有的道路声屏障的降噪量提高了3～4dB,能很好地解决道路声屏障底部安装缝隙的漏声问题,提高声屏障的整体降噪效果,同时也提升了道路声屏障的整体视觉效果。
The small gaps usually exist on a noise barrier and cause serious decline of barrier＇s IL （ Insertion Loss）. In the paper a special barrier technique is presented to solve such problem with barriers on overhead-roads and demonstrated efficient retrieving barrier＇s IL for 4-5dB which is taken by gaps in experiments. Furthermore, the new look of barriers gets slinky and more beautiful.
出处
《噪声与振动控制》
CSCD
北大核心
2006年第1期43-45,共3页
Noise and Vibration Control
关键词
声学
交通噪声
声屏障
acoustics
traffic noise
noise barrier
