摘要
为后续指导福州地铁规划环评、项目环评和风亭的降噪设计,提高预测的准确性,本研究在分析福州地铁风亭已采取的降噪措施后,确定了活塞风亭、排风亭和新风亭的源强监测方案。监测结果表明:风亭源强受风机源强、消声器插入损失、传播过程损失的综合影响,导致了源强测试结果的差异。在本研究确定的监测条件下,福州地铁的活塞风亭隧道机械通风源强为46~64 dB(A);排风亭在地铁运营时段的源强为48~61 dB(A),地铁停运后的源强为40~50 dB(A);新风亭在地铁运营运行时段的源强为47~55 dB(A),地铁停运后的源强为45~53 dB(A)。风亭形式(高、低风亭)对于风亭源强无明显影响,风亭内风机的长期使用会导致风亭源强增大。
In order to guide the noise reduction design of wind pavilion,project environmental impact assessment and environmental control equipment of Fuzhou metro,improve the accuracy of forecasts and the effectiveness of proposed measures,after analyzing all the noise reduction measures taken by wind pavilion of Fuzhou metro,the noise souce intensity monitoring scheme of piston wind pavilion,exhaust wind pavilion and new wind pavilion is determined.The monitoring results show:The source intensity of wind pavilion is affected by the fan source intensity,muffler insertion loss and propagation loss,which lead to the differences in the test results of source intensity.For Fuzhou metro,under the monitoring conditions identified in this study,the source intensity of the piston wind pavilion is 46~64 dB(A)under tunnel mechanical ventilation;The source intensity of the exhaust wind pavilion is 48~61 dB in operating and 40~50 dB(A)after the subway stops running;The source intensity of the new wind pavilion is 47~55 dB(A)in operating and 45~53 dB(A)when the subway stops running.The form of wind pavilion(high and low wind pavilion)has no significant effect on the source intensity of wind pavilion.The long-term use of the fan in the pavilion will lead to the increase of the source intensity of wind pavilion.
作者
邵崴
寇英卫
李鸿平
林彦楷
林世龙
SHAO Wei;KOU Yingwei;LI Hongping;LIN Yankai;LIN Shilong(Fujian Environmental Protection Design Institute Co.,Ltd.,Fuzhou 350001,China;China Shipping Environment Technology(Shanghai)Co.,Ltd.,Shanghai 200135,China;Fuzhou Metro Group Co.,Ltd.,Fuzhou 350001,China)
出处
《环境影响评价》
2023年第4期23-27,共5页
Environmental Impact Assessment
关键词
城市轨道交通
风亭噪声
源强
urban rail transit
noise of wind pavilion
source intensity
