铁路节能环保与安全卫生

通过对我国北京、上海、广州等城市既有地铁线路两侧环境振动实测结果及理论分析 ,得到 :我国地铁隧道壁处的垂向Z振级为 75～ 1 1 0dB ;距离隧道中心线 1 0～5 0m范围内 ,振动水平可达到GB1 0 0 70 -1 988《城市区域环境振动标准》中居住区域标准限值的要求 ;同时给出我国地铁既有振动控制措施效果比较 ,其中浮置板道床减振效果最佳 ,其次为轨道减振器 ,各种弹性扣件也有一定减振效果

This paper studies the subway's bilateral environment vibration in Beijing,Shanghai and Guangzhou.The research is worked out by site measurements and theoretic analysis methods.It draws the following conclusions:The L vz at tunnel wall is 75～110 dB.Within the extent of 10～50 m from tunnel centre line,the L vz of urban area can be able to meet the standard limitation in GB10070-88《Standard of environment vibration in urban area》.Furthermore,this paper gives the comparative results of vibration controlling in China.The best effect is floating track,the next is track anti-vibrators,various elastic fasteners have anti-vibration result as well.