
第33卷第1期 2010年6月
上海船舶运输科学研究所学报 JOURNALOFSSSRI
文章编号:1674-5949(2010)01-0017-05
城市复杂路段声屏障设计
褚国红,李晓东,邱贤锋
(上海船舶运榆科学研究所环境分所,上海200135。
Vol. 33 No. 1 Jun.2010
摘要:随着社会的发展,交通噪声已成为城区中危害最大、数量最多的噪声源,特别是立交区域,噪声源多,声场复杂,声屏障治理难度很大。现以同济立交区城的声屏障设计为例,介绍对城市复杂路段声屏障设计的一些探索。设计通过对立交区域或交通污染源的详细调查,利用CadnaA软件完成声屏障的声学设计工作,从而确定声屏障的设置位置及高度。在满足声学要求的基础上,进一步开展了声屏障结构与构造设计、景观设计等。声屏障峻工后,现
场监测及民众反应其效果良好,获得了一定的社会效益。关键调:噪声;声屏障;插人损失;预测计算;结构设计
中图分类号:TB53
文献标志码:A
SoundBarrierDesigninUrbanComplicatedArea
QIUXian-feng
ZHUGuo-hong,LIXiao-dong,
(Environmental Sub-Institute,Shanghai Ship and Shipping Research Institute, Shanghai 200135, China) Abstract: With the development of society, traffic noise has become the most hazardous source in urban area, especially in in terchange region, where there are large number of noise sources, complicated sound fields, and much difficulties of noise con trol by means of sound barrier. The design of sound barriers in Tongji interchange region is taken for an example to introduce the exploration of barrier design in complicated urban area. Through the investigation of noise sources in the interchange re gion, an acoustic design is carried out with the help of the software CadnaA, then locations and heights of the sound barriers can be determined. The design of the sound barriers structure, configuration and landscape can be developed further on the ba sis of meeting acoustic requirements. After completion of the sound barrier, monitoring data and public response indicate that the sound barriers have good effectiveness and social benefits,
Key words; noise; noise barrier; insertion loss; forecast calculation; structure design
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前言
随着城市交通日益发展,汽车拥有率的迅速增长,车辆噪声污染也日趋严重。有数据表明,城市道路交
通噪声已成为城市居住区中危害最大、数量最多的噪声源,并且因其治理难度大,影响面广,由此,带来了较大的负面影响。
一般来说,治理交通噪声污染主要有3个途径: 1.降低声源辐射,这属车辆或路面研究范围
2.控制传播途径,主要有规划、改变道路形式、加强绿化、安装声屏障等措施;
3.保护接受者,主要是指拆迁、改变房屋功能、安装隔声窗等,是被动的保护措施,且不能改善室外声环境。
收稿日期:2010-03-26
作者简介:褚国红(1968-),男,上海市人,副研究员,主要从事环保工程。万方数据