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Open AccessArticle

Field Measurement and Research on Environmental Vibration due to Subway Systems: A Case Study in Eastern China

1
School of Geology Engineering and Geomatics, Chang’an University, Xian 710054, China
2
Petroleum Engineering Department, University of North Dakota, Grand Forks, ND 58202-6116, USA
3
Research Institute of Structural Engineering and Disaster Reduction, Tongji University, Shanghai 200092, China
*
Author to whom correspondence should be addressed.
Sustainability 2019, 11(23), 6835; https://doi.org/10.3390/su11236835
Received: 6 November 2019 / Revised: 20 November 2019 / Accepted: 29 November 2019 / Published: 2 December 2019
(This article belongs to the Section Sustainable Engineering and Science)
With the rapid development of subway systems, the negative environmental impacts of vibration induced by subways has gradually become a research hotspot. For the purpose of developing predictive models of vibration and designing effective vibration mitigation systems, continuous field dynamic measurements were conducted simultaneously in a subway tunnel, ground, and building in eastern China, the most prosperous region in China. The characteristics of vibration transmission and attenuation induced by subway were analyzed by statistical analysis of large amounts of measurement data. The results showed that most prominent and visible attenuation of vibration is from the track to the ballast bed in the tunnel, where the ground-borne vibration would quickly decrease exponentially with distance. The results also showed that the measured attenuation value of indoor vibration was approximate 0.76 dB on average between each floor. Moreover, the decay ratio of the vibration increased with the increase in the frequency range. Based on these findings, construction gauge of 20–25 m outside of the tunnel is recommended. In addition, reducing the vibration source excitation intensity is the most effective vibration isolation method, especially by track structural transformation. View Full-Text
Keywords: subway; vibration transmission; vibration attenuation; ground-borne vibration; vibration isolation design subway; vibration transmission; vibration attenuation; ground-borne vibration; vibration isolation design
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MDPI and ACS Style

Xu, R.; Li, X.; Yang, W.; Rabiei, M.; Yan, C.; Xue, S. Field Measurement and Research on Environmental Vibration due to Subway Systems: A Case Study in Eastern China. Sustainability 2019, 11, 6835.

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