高速列车下穿机场地下车站时周边区域辐射噪声预测  

Prediction of radiation noise in the surrounding area of high-speed trains passing airport underground stations

作　　者：林毅民 李盈利 黄晴 张汉青 LIN Yimin;LI Yingli;HUANG Qing;ZHANG Hanqing(Key Laboratory of Traffic Safety on Track of Ministry of Education,School of Traffic&Transportation Engineering,Central South University,Changsha 410075,China;Joint International Research Laboratory of Key Technology for Rail Traffic Safety,Changsha 410075,China;National&Local Joint Engineering Research Center of Safety Technology for Rail Vehicle,Changsha 410075,China)

机构地区：[1]中南大学交通运输工程学院轨道交通安全教育部重点实验室,长沙410075 [2]轨道交通安全关键技术国际合作联合实验室,长沙410075 [3]轨道交通列车安全保障技术国家地方联合工程研究中心,长沙410075

出　　处：《应用声学》2024年第5期1017-1024,共8页Journal of Applied Acoustics

基　　金：国家自然科学基金项目(12172383)。

摘　　要：为研究高铁车站及综合交通枢纽周边区域的噪声水平与分布,该文采用统计能量分析法建立结构-声腔子系统模型,对高速列车以不同速度级(250 km/h、300 km/h和350 km/h),单车越行、两车中部交会和两车端部交会这三种形式通过机场地下车站时,车站上方综合交通枢纽周边路面区域的辐射噪声进行了预测。研究结果表明,两列高速列车以较高速度在端部交会时,周边路面风井出口区域存在较大噪声,其原因在于列车交会端的风井存在较大的噪声值,并进一步对主要噪声频谱特征进行了分析。最后,通过在地下车站风井壁面处铺设不同厚度的吸声材料,有效降低了周边路面区域的噪声值。该研究可以为高速列车高速过机场地下车站时改善周边路面噪声环境提供参考建议。To study the noise level and distribution around high-speed railway stations and ground transportation center(GTC),a structure-cavity subsystem model was established by using statistical energy analysis to analyze the noise levels of the road area around the GTC when high-speed trains pass through the airport underground station in three forms at different speeds.The results show that when two high-speed trains meet at the end with larger speed,there is larger noise in the exit area of the air shaft of the surrounding road surface,which is due to the existence of larger noise values in the air shaft at the meeting end of the trains,and the main noise frequency bands are further analyzed.By laying different thicknesses of sound-absorbing materials at the wall surface of the underground station’s air shaft,the noise value of the surrounding area is effectively reduced. In this study, reference suggestions can be provided for improving the surrounding noiseenvironment when high-speed trains pass through airport underground stations at high speeds.

关 键 词：声学 高速列车 统计能量分析 噪声预测 

分 类 号：U260.16[机械工程—车辆工程]