城市轨道交通高架段噪声治理预测研究
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摘要
传统城市轨道交通高架段列车噪声治理依靠过往项目工程经验,根据项目经验做城市轨道交通高架段噪声治理设计经常会导致设计过量或设计不足,从而影响工程质量和工程经济性。本文结合工程实例,介绍了如何利用噪声预测软件Sound PLAN对城市轨道交通高架段噪声治理前后进行预测分析,并对工程完工前后敏感点声环境进行现场测试对比,通过对比发现了Sound PLAN在城市轨道交通高架段噪声预测过程中虽与实际情况存在一定的误差,但可通过对软件相关技术参数做适当的修正,从而使预测软件在城市轨道交通高架段噪声预测更精准可靠,为轨道交通噪声治理科学设计提供支撑依据。
The urban rail transit train noise control about the elevated section rely on past project experience,which often result in excessive design or inadequate design,thus the quality and economy will be affected in this way。This article combined with engineering project examples and analysis the mechanism of noise prediction software in rail transport,then describes how to use the noise prediction software Soun PLAN to analysis the rail traffic noise in the elevated section。But also test and compare the acoustics environment of the sensitive points during the project 。Although there are some errors between the actual situation and the noise prediction result,but the prediction software in rail transit elevated section noise prediction will more accurate and reliable after do some amendments to software technical parameters,and provide basis for rail traffic noise control design。
引文
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