120 km/h地铁多种减振轨道结构现场测试与分析
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摘要
为分析隧道内各种减振措施在地铁列车行车速度为120 km/h时的减振效果,以地铁现场测试为依托,在时域和频域内分析3种轨道结构各测试断面在行车速度为120 km/h下的振动特性。结果表明:DZⅢ-1型扣件普通整体道床轨道在各频段内对振动的衰减均有一定效果,隧道壁在低频范围内减振效果较好。梯形轨枕轨道结构轨枕至隧道壁间的振动衰减非常明显,约为50 dB。钢弹簧浮置板对振动的衰减主要在钢轨与浮置板之间完成,为50~80 dB。梯形轨枕轨道和钢弹簧浮置板轨道隧道壁主要响应频段内相对于DZⅢ-1型扣件普通整体道床轨道减振效果分别为22 dB和38 dB。
In order to identify the damping effects of various measures taken to reduce vibration in the subway tunnel at the train speed of 120 km/h,this paper analyzes the vibration characteristics of 3 kinds of track structures in the time domain and frequency domain at the driving speed of 120 km/h. based on in-situ test. The results show that the damping effect of DZⅢ-1 type integral track bed has a certain effect on vibration attenuation in all frequency bands,and the vibration attenuation effect of tunnel wall is better in low frequency range. The vibration attenuation between the sleeper and the tunnel wall of the ladder-type sleeper track structure is obviously about 50 dB. The vibration attenuationof steel spring floating slab is completed mainly between the rail and the floating slab of 50 ~ 80 dB. The tunnel wall main response frequency bands of ladder-shaped sleeper rail and steel spring floating plate track relative to the DZⅢ-1 type fastener general track are 22 dB and 38 dB respectively.
In order to identify the damping effects of various measures taken to reduce vibration in the subway tunnel at the train speed of 120 km/h,this paper analyzes the vibration characteristics of 3 kinds of track structures in the time domain and frequency domain at the driving speed of 120 km/h. based on in-situ test. The results show that the damping effect of DZⅢ-1 type integral track bed has a certain effect on vibration attenuation in all frequency bands,and the vibration attenuation effect of tunnel wall is better in low frequency range. The vibration attenuation between the sleeper and the tunnel wall of the ladder-type sleeper track structure is obviously about 50 dB. The vibration attenuationof steel spring floating slab is completed mainly between the rail and the floating slab of 50 ~ 80 dB. The tunnel wall main response frequency bands of ladder-shaped sleeper rail and steel spring floating plate track relative to the DZⅢ-1 type fastener general track are 22 dB and 38 dB respectively.
引文
[1]夏禾,曹艳梅.轨道交通引起的环境振动问题[J].铁道科学与工程学报,2004(1):44-51.
[2]和振兴,翟婉明,罗震.地铁列车引起的地面振动[J].西南交通大学学报,2008(2):218-221,247.
[3]张杨,陈国兴,毛昆明,等.轨道交通运行引起的场地振动实测研究现状[J].防灾减灾工程学报,2011(2):225-232.
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[5]闫维明,聂晗,任珉,等.地铁交通引起地面振动的实测与分析[J].铁道科学与工程学报,2006(2):1-5.
[6]何卫,谢伟平,刘立胜.地铁隧道列车振动特性试验研究[J].华中科技大学学报(自然科学版),2016(4):85-89.
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[8]战家旺,夏禾,善田康雄,井上宽美,齐琳.城市轨道交通高架桥梯形轨枕轨道降噪性能试验分析[J].中国铁道科学,2011(1):36-40.
[9]刘鹏辉,杨宜谦,尹京.地铁隧道内不同轨道结构振动测试与分析[J].振动与冲击,2014(2):31-36.
[10]于春华.城市轨道交通轨道减振设计与研究[J].铁道工程学报,2007(4):77-79.
[11]郑晓,刘胜群.地铁运行引起地表振动的现场测试与分析[J].铁道建筑,2007(6):41-43.
[12]李克飞,刘维宁,孙晓静,等.北京地铁5号线地下线减振措施现场测试与分析[J].铁道学报,2011(4):112-118.
[13]葛辉,杨麒陆,梁迎春,等.不同时速下地铁多种轨道结构现场测试与分析[J].铁道标准设计,2017(1):11-15.
[14]闫维明,张祎,任珉,等.地铁运营诱发振动实测及传播规律[J].北京工业大学学报,2006(2):149-154.
[15]国家环境保护总局.GB/T 10071—1988城市区域环境振动测量方法[S].北京:中国标准出版社,1989.
[2]和振兴,翟婉明,罗震.地铁列车引起的地面振动[J].西南交通大学学报,2008(2):218-221,247.
[3]张杨,陈国兴,毛昆明,等.轨道交通运行引起的场地振动实测研究现状[J].防灾减灾工程学报,2011(2):225-232.
[4]Degrande G,Schevenels M,Chatterjee P,et al.Vibrations due to test train at variable speeds in a deep bored tunnel embedded in London clay[J].Journal of Sound and Vibration,2006,293(3-5):626-644.
[5]闫维明,聂晗,任珉,等.地铁交通引起地面振动的实测与分析[J].铁道科学与工程学报,2006(2):1-5.
[6]何卫,谢伟平,刘立胜.地铁隧道列车振动特性试验研究[J].华中科技大学学报(自然科学版),2016(4):85-89.
[7]孙晓静.地铁列车振动对环境影响的预测研究及减振措施分析[D].北京:北京交通大学,2008:20-24.
[8]战家旺,夏禾,善田康雄,井上宽美,齐琳.城市轨道交通高架桥梯形轨枕轨道降噪性能试验分析[J].中国铁道科学,2011(1):36-40.
[9]刘鹏辉,杨宜谦,尹京.地铁隧道内不同轨道结构振动测试与分析[J].振动与冲击,2014(2):31-36.
[10]于春华.城市轨道交通轨道减振设计与研究[J].铁道工程学报,2007(4):77-79.
[11]郑晓,刘胜群.地铁运行引起地表振动的现场测试与分析[J].铁道建筑,2007(6):41-43.
[12]李克飞,刘维宁,孙晓静,等.北京地铁5号线地下线减振措施现场测试与分析[J].铁道学报,2011(4):112-118.
[13]葛辉,杨麒陆,梁迎春,等.不同时速下地铁多种轨道结构现场测试与分析[J].铁道标准设计,2017(1):11-15.
[14]闫维明,张祎,任珉,等.地铁运营诱发振动实测及传播规律[J].北京工业大学学报,2006(2):149-154.
[15]国家环境保护总局.GB/T 10071—1988城市区域环境振动测量方法[S].北京:中国标准出版社,1989.