噪声与振动控制2024，Vol.44Issue(2)：219-224,6.DOI:10.3969/j.issn.1006-1355.2024.02.035
高速铁路路堤对环境振动的影响研究
Influence of High-speed Railway Embankment Profile on Environmental Vibration
摘要
Abstract
In order to study the influence of filling height and slope ratio of the high-speed railway embankment on environmental vibration,the field test was carried out near the subgrade of Beijing-Zhangjiakou high-speed railway,and the propagation attenuation law of environmental vibration was studied.Based on the field test results,the numerical simulation model was established by FLAC3D.The numerical analysis results were in good agreement with the field test results,which verifies the rationality of the numerical simulation model.Furthermore,the influence of filling height and slope ratio of the embankment on environmental vibration was analyzed.The results show that the field test vibration level magnitudes are less than 63 dB.Generally speaking,the vibration level of the measuring point decreases gradually with the increase of the distance between the measuring point and the outer rail of the line.When the embankment height is 1 m,compared with the embankment height of 0 m,the vibration level of the measuring point within 60 m from the railway line appears rebound amplification phenomenon.When the embankment height is greater than 2 m,compared with the embankment height of 0 m,the influence of environmental vibration is greater.So,it is suggested that the embankment height should be higher than 2 m.When the slope is upright,the surface vibration is minimum;When the slope ratio is greater than 0,compared with the slope of upright,the influence of environmental vibration is greater.Therefore,it is suggested that the U-shaped groove structure embankment should be used,which has little influence on environmental vibration.关键词
环境振动/高速铁路/路堤/现场实测/数值分析Key words
environmental vibration/high-speed railway/embankment/field test/numerical analysis分类
交通工程引用本文复制引用
陈洪运,王海洋,刘乾坤,董捷,胡建林,周小龙..高速铁路路堤对环境振动的影响研究[J].噪声与振动控制,2024,44(2):219-224,6.基金项目
河北建筑工程学院博士科研启动基金资助项目(B-202101) （B-202101）
河北省省属高等学校基本科研业务费研究资助项目(2021QNJS07、2021QNJS02、2022QNJS06) （2021QNJS07、2021QNJS02、2022QNJS06）
河北省自然科学基金面上资助项目(E2020404007) （E2020404007）
河北建筑工程学院研究生创新基金资助项目(XY2023043) （XY2023043）
河北省住房和城乡建设厅建设科技研究资助项目(2022-2106) （2022-2106）
