| 交通噪声在建筑群中的传播与衰减 |
| |
| 引用本文： | 田静,孙广荣,吴启学,李宁荣.交通噪声在建筑群中的传播与衰减[J].环境科学学报,1987,7(4):387-394. |
| |
| 作者姓名： | 田静 孙广荣 吴启学 李宁荣 |
| |
| 作者单位： | 南京大学环境科学研究所
(田静，孙广荣，吴启学)，南京大学环境科学研究所(李宁荣) |
| |
| 摘 要： | 以等效连续A声级L_(eq)为交通噪声的评价量,使用一种经过适当简化的计算模型和几何声学方法,在仅考虑直达声和有限数目的前次反射声的情况下,给出了交通噪声在沿道路(或河道)分布的建筑群中纵深方向的传揩与衰减规律,并说明了其物理机制。所得理论结果与实测数据相符,其标准偏差小于1.5dB,平均偏差在±1.0dB范围内。
|
| 关 键 词： | 交通噪声 建筑群 |
PROPAGATION AND ATTEN UATION OF TRAFFIC NOISE IN ARCHITECTURAL COMPLEXES |
| |
| Tian Jing,Sun Guangrong,Wu Qixue and Li Ningrong.PROPAGATION AND ATTEN UATION OF TRAFFIC NOISE IN ARCHITECTURAL COMPLEXES[J].Acta Scientiae Circumstantiae,1987,7(4):387-394. |
| |
| Authors: | Tian Jing Sun Guangrong Wu Qixue and Li Ningrong |
| |
| Institution: | Institute of Environmental Sciences, Nanjing University,Institute of Environmental Sciences, Nanjing University,Institute of Environmental Sciences, Nanjing University and Institute of Environmental Sciences, Nanjing University |
| |
| Abstract: | A physical model for describing propagation and attenuation of traffic noise along street or river was developed using geometrical acoustics method with continuous A-weighted sound level (Leq)as a rating index. Only direct sound and prior reflections of limited number were considered during the computation. The theoretical result based on the above method was compared with that obtained during field survey in Changzhou City and it was found that the standard deviations for the theoritical values were below 1.5dB and the average deviations were all in the range of ±1.0dB. |
| |
| Keywords: | traffic noise architectural complex |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《环境科学学报》浏览原始摘要信息 |
| 点击此处可从《环境科学学报》下载免费的PDF全文 |
|
