Development Study on Prediction Technique of Construction Noise for Environmental Assessment

环境评价施工噪声预测技术发展研究

基本信息

批准号：
15360307
负责人：
TACHIBANA Hideki
金额：
$ 7.94万
依托单位：
Chiba Institute of Technology (2004)The University of Tokyo (2003)
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2004
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15360307/
关键词：
environmental noise construction noise environmental impact assessment sound power level noise propagation outdoors swept-sine method

项目摘要

In this research, a method of predicting construction noise has been investigated in two years (fiscal 2003 and 2004) as a research for environmental impact assessment. In the first year, basic studies on (1) classification of construction noises from an acoustical viewpoint and (2) assessment method of noise emission characteristics of various kinds of machines and equipment for construction works. Based on these studies, the following investigations have been carried out in the second year.(1) Investigation on the system of environmental impact assessment in Japan : In order to show the aim of this study and its significance in environmental science, the legislative system for environmental impact assessment in Japan was analyzed and the relationship between environmental monitoring environmental impact assessment was considered.(2) Prediction system of construction noise : Regarding construction noise as one of the environmental noises, calculation flow and acoustical information fo … More r the prediction of construction noise were investigated based on the prediction model "ASJ CN-Model 2002" proposed by the Acoustical Society of Japan.(3) Assessment method of noise source characteristics for the prediction of construction noise : In order to quantitatively obtain the sound emission characteristics of machines and equipment for construction works with various temporal and spatial properties, theoretical investigations were performed and various kinds of noise indicators for unifying the ways of measurement and assessment were proposed.(4) Grasp of noise source characteristics by field measurements : Based on the results of the studies mentioned above, field measurements were carried out at some typical construction work sites. In these measurements, the data for noise emission characteristics of various kinds of machines for earthworks, road pavement, concrete destruction, blasting, etc. were obtained.(5) Measuring method for noise propagation outdoors : In order to establish a method of measuring the outdoor sound propagation characteristics influenced by meteorological conditions, the swept-sine technique using a sweep signal with a long duration time was developed and its effectiveness was actually examined by performing measurements at construction work sites of a highway and a road tunnel.(6) Numerical analysis method for noise propagation : As a method for calculating the sound propagation under complicated boundary conditions which needs to be analyzed by wave-acoustics, the application of the time-domain finite difference method to this problem was investigated and its applicability to sound propagation in a tunnel was examined. Less

在这项研究中，已经在两年内研究了一种预测鼻子的方法（2003年和2004财年）。在第二年进行了各种机器的噪声和设备。。评估方法。为了定量的L s和设备，进行了各种时间和空间特性，进行了理论研究，并进行了各种噪声指标，以统一测量和评估。在这些测量中的一些典型约束工作站点中，噪声emisse的数据将各种机器从各种机器上进行，道路路面，混凝土销毁，爆破等。通过气象条件，使用较长持续时间的pt - sine技术，通过在高速公路和公路隧道的结构工作地点进行测量，从而有效地检查了其。研究了这个问题，并在隧道中调查了prond的繁殖