| 公路隧道内交通噪声预测 |
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| 引用本文： | 史小丽,王选仓,贾奇英.公路隧道内交通噪声预测[J].公路交通科技,2010,27(2). |
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| 作者姓名： | 史小丽 王选仓 贾奇英 |
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| 作者单位： | 1. 长安大学,公路学院,陕西,西安,710064
2. 辽河石油勘探局筑路工程公司,辽宁,盘锦,124101 |
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| 基金项目： | 河北省交通科技项目(Y-060249) |
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| 摘 要： | 为合理预测公路隧道内交通噪声传播状况,界定了公路隧道内的长空间声场特性,系统阐述了3种基于像源理论的交通噪声预测模型,通过在实体隧道中测定声源分别为低频和高频、接收者在不同位置时的噪声值,并将其与三种理论模型预测值进行对比,结果表明:相干模型在低、中、高频范围内比不相干模型和ASJ模型能更精确地预测隧道内噪声传播状况,其预测值与实测值误差在2dB左右;而不相干模型和ASJ模型仅可用于预测高频段时噪声的平均值。可见,相干模型是预测以中低频为主的公路隧道内交通噪声传播的合理模型,该预测模型可用于进行公路隧道内降噪优化设计。
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| 关 键 词： | 环境工程 交通噪声 预测模型 公路隧道 噪声降低值 |
Traffic Noise Prediction inside Highway Tunnels |
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| SHI Xiaoli,WANG Xuancang,JIA Qiying.Traffic Noise Prediction inside Highway Tunnels[J].Journal of Highway and Transportation Research and Development,2010,27(2). |
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| Authors: | SHI Xiaoli WANG Xuancang JIA Qiying |
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| Institution: | 1.School of Highway;Chang'an University;Xi'an Shaanxi 710064;China;2.Road Construction Company of CNPC Liaohe Petroleum;Panjin Liaoning 124101;China |
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| Abstract: | In order to reasonably predict traffic noise transmission inside highway tunnels,the long enclosure sound field characteristic was defined and three traffic noise prediction models based on image source theory was put forward.Measurements were executed in a certain tunnel with low-frequency and high-frequency sound source respectively and the receiver situated at different locations,which were compared with the three theoretical model prediction results.Analysis result shows that(1) coherent model is more a... |
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| Keywords: | environmental engineering traffic noise prediction model highway tunnel noise reduction value |
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