摘要
轨道交通噪声问题日益引起了人们的关注,对轨道线路两侧的声环境预测工作也提出了新的要求。通过对我国《环境影响评价技术导则-城市轨道交通》中的声环境影响预测公式进行分析,从计算公式的参考点噪声辐射源强、声屏障衰减模型和声屏障等效频率计算等三个方面对其进行修正,以期能使我国的城市轨道交通噪声预测模式更加完善,计算更加精确。
With the rapid development of urban rail transit, the train speed has been accelerated continuously, at the same time the railway noise has caused more concerns, which lead to new requirements for acoustic environment prediction on both sides of the railway lines. By analyzing the acoustic environment prediction formula in Chinese ＂Technical Guidelines for Environment Impact Assessment of Urban Rail Transit＂, 3 aspects., the noise radiation source intensity of the reference point, the noise barrier attenuation mode and the calculation of the sound barrier equivalent frequency are discussed for the amendment of the formula. It is expected to improve the model of urban rail transit noise prediction in China and to simplify the calculations accurately.
出处
《城市轨道交通研究》
北大核心
2012年第2期35-38,42,共5页
Urban Mass Transit
基金
国家自然科学基金项目(50768004)
新世纪优秀人才支持计划项目(NECT-09-0167)
关键词
轨道交通
噪声预测
计算公式修正
rail transit
noise prediction
calculation formula correction
