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Effectiveness of Vibration Reduction Measures on Chengdu Urban Express
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Yumei XIE1, Yulong HE1, Hong XU2, Yujie CHENG1, Wenxiang ZHOU1
Urban Rapid Rail Transit | 2024, 37(1) : 120 - 126
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Urban Rapid Rail Transit | 2024, 37(1): 120-126
• Civil Engineering Technology •
Effectiveness of Vibration Reduction Measures on Chengdu Urban Express
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Yumei XIE1, Yulong HE1, Hong XU2, Yujie CHENG1, Wenxiang ZHOU1
Affiliations
  • 1 Faculty of Geoscience and Environmental Engineering Southwest Jiaotong University Chengdu 611756
  • 2 Institute of Eco-Environment China Railway Eryuan Engineering Group Co., Ltd. Chengdu 610031
doi: 10.3969/j.issn.1672-6073.2024.01.019
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To evaluate the vibration reduction effect of urban express, similar sections with essentially the same line conditions were studied. Different vibration reduction measures and corresponding common overall track bed sections were tested onsite to study the vibration reduction effect of urban express vibration reduction measures. Through the time domain, frequency domain, and onethird octave analysis of the measured data, the vibration reduction measures and maximum Zvibration level (VLZmax) of the ordinary section of the tunnel wall were obtained, and the vibration reduction effects of different vibration reduction measures were compared. The vibration acceleration of the tunnel wall at the measuring point and the ground vibration were analyzed in onethird of an octave to obtain the propagation attenuation of the vibration. The results show that the three vibration reduction measures reduced vibration. The vibration reduction of the doublelayer nonlinear vibration reduction fastener was 7.3 dB; the vibration reduction was 16.2 dB for the vibration damping pad floating plate and 19.7 dB for the steel spring floating plate.

urban rapid rail  /  vibration reduction measures  /  vibration reduction effect  /  one-third octave  /  double-layer nonlinear vibration reduction fastener  /  vibration damping pad floating plate  /  spring floating plate
Yumei XIE, Yulong HE, Hong XU, Yujie CHENG, Wenxiang ZHOU. Effectiveness of Vibration Reduction Measures on Chengdu Urban Express[J]. Urban Rapid Rail Transit, 2024 , 37 (1) : 120 -126 . DOI: 10.3969/j.issn.1672-6073.2024.01.019
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Year 2024 volume 37 Issue 1
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Article Info
doi: 10.3969/j.issn.1672-6073.2024.01.019
  • Receive Date：2022-10-31
  • Online Date：2025-07-09
Article Data
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  • Received：2022-10-31
  • Revised：2023-11-05
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Affiliations
    1 Faculty of Geoscience and Environmental Engineering Southwest Jiaotong University Chengdu 611756
    2 Institute of Eco-Environment China Railway Eryuan Engineering Group Co., Ltd. Chengdu 610031
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Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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