城市高架道路交通噪声空间分布规律的实测研究  

Experimental Study on Spatial Distribution Law of Traffic Noise on Urban Viaduct

作　　者：罗干生 赵静 姜明星 李鑫港 项叶彬 丁勇[2] LUO Gan-sheng;ZHAO Jing;JIANG Ming-xing;LI Xin-gang;XIANG Ye-bin;DING Yong(Ningbo City Infrastructure Construction&Development Center,Ningbo 315040,China;Department ofCivil Engineering of Ningbo University,Ningbo 315211,China)

机构地区：[1]宁波市城市基础设施建设发展中心,浙江宁波315040 [2]宁波大学土木工程系,浙江宁波315211

出　　处：《工程建设与设计》2023年第3期71-75,共5页Construction & Design for Engineering

摘　　要：交通噪声是高架道路造成的主要环境污染,为了对其进行预防和治理,需要了解噪声的空间分布规律。论文采用现场测试的方法,对宁波高架旁的代表性点位进行了噪声监测和数据拟合。通过在垂直与平行于高架线方向的不同距离和不同高度上设置测点,以此研究高架旁噪声空间分布规律。结果表明:(1)横桥向的噪声,随着测点与高架桥垂直距离的增大,呈对数曲线递减;(2)顺桥向的噪声,随着测点与十字路口垂直距离的增大,呈对数曲线递减;(3)高架方向的噪声先随着楼层的升高而增大,10~12层达到最大值,12~20层的声压基本稳定。Traffic noise is the main environmental pollution of the elevated line.In order to prevent and control this noise,it is necessary to understand the spatial distribution of the noise.In this paper,the noise monitoring and data fitting of representative points near Ningbo viaduct are carried out by means of field test.By setting measuring points at different distances and heights perpendicular to and parallel to the elevated line,the spatial distribution law of noise near the elevated line is studied.The results show that:(1)The noise in the transverse direction of the bridge decreases in a logarithmic curve with the increase of the vertical distance between the measuring point and the viaduct;(2)The noise along the bridge decreases in a logarithmic curve with the increase of the vertical distance between the measuring point and the intersection;(3)The noise in the elevated direction first increases with the rise of the floor,reaching the maximum on floors10 to 12,and the sound pressure on floors 12 to 20 are basically stable.

关 键 词：城市高架道路 噪声测试 噪声分布 数据拟合 

分 类 号：U491.91[交通运输工程—交通运输规划与管理]