Table of Content

Open Access iconOpen Access

ARTICLE

A Study of the Suitable Measurement Location and Metrics for Assessing the Vibration Source Strength Based on the Field-Testing Data of Nanchang Underground Railway

Ling Zhang1, 2, Xiaoyan Lei1, Jian Jiang2, Qingsong Feng1

1 Engineering Research Center of Railway Environment Vibration and Noise, Ministry of Education, East China Jiaotong University, Nanchang, 330013, China
2 School of Media, Arts & Technology, Southampton Solent University, Southampton SO14 0YN, UK
The author can be reached at: 19114729@qq.com.

Sound & Vibration 2018, 52(5), 22-27. https://doi.org/10.32604/sv.2018.04058

Abstract

Underground railway vibration source strength is one of the key values used for environmental impact assessment and the evaluation of mitigation measure’s performance. However, currently there is no international standard of measuring the underground railway vibration source strength for such purposes. The available local standards and industrial guidelines do not agree on measurement locations as well as the metrics for presenting the source strength. This has caused many confusions. This paper aims to study the suitable measurement location and metrics using the data from a large scale field-testing carried out at the Nanchang underground railway (Metro Line 1, China) in 2017. 200 passing trains were recorded during the test at two different sections of the railway line, one with the spring floating slab installed and the other without. Three locations were chosen at each section, including one in the middle of the track and two on the tunnel wall at different heights. Based on the results of statistical analysis, the maximum of z-weighted vertical vibration level (VLzmax) obtained at a lower measurement location on the tunnel wall is the best for representing the underground railway vibration source strength, which is 76.66 dB obtained from this study.

Keywords


Cite This Article

APA Style
Zhang, L., Lei, X., Jiang, J., Feng, Q. (2018). A study of the suitable measurement location and metrics for assessing the vibration source strength based on the field-testing data of nanchang underground railway. Sound & Vibration, 52(5), 22-27. https://doi.org/10.32604/sv.2018.04058
Vancouver Style
Zhang L, Lei X, Jiang J, Feng Q. A study of the suitable measurement location and metrics for assessing the vibration source strength based on the field-testing data of nanchang underground railway. Sound Vib . 2018;52(5):22-27 https://doi.org/10.32604/sv.2018.04058
IEEE Style
L. Zhang, X. Lei, J. Jiang, and Q. Feng "A Study of the Suitable Measurement Location and Metrics for Assessing the Vibration Source Strength Based on the Field-Testing Data of Nanchang Underground Railway," Sound Vib. , vol. 52, no. 5, pp. 22-27. 2018. https://doi.org/10.32604/sv.2018.04058



cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
  • 1789

    View

  • 1234

    Download

  • 0

    Like

Share Link