13th Asia Pacific Transportation Development Conference
Analysis of Subway Vibration Propagation Characteristics in Rock Stratum
Publication: Resilience and Sustainable Transportation Systems
ABSTRACT
Studies focus on the propagation characteristics of vibration induced by metro in rock stratum. The typical rock stratum metro in China was selected as the study object. The rail-tunnel-stratum finite element model was established using finite element analysis method. Steel rail, tunnel wall, and ground vibration of different distances above the tunnel were obtained by the “three-dimensional integration” synchronous test method of ground and tunnel vibration. The transmission loss differences of different transmission paths and the vibration transmission characteristics of rock strata were analyzed based on the transfer path analysis method. Results showed that the peak value of ground vibration spectrum was maintained in 12.5~20 Hz or 50~80 Hz due to the transmission loss of low valley frequency band in rock vibration. The vibration in the frequency band of 50~80 Hz was not attenuate with the increase of test distance. Hence, the frequency band was more likely to affect the surrounding environment vibration in the metro operation.
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Information & Authors
Information
Published In
Resilience and Sustainable Transportation Systems
Pages: 635 - 641
Editors: Fengxiang Qiao, Ph.D., Texas Southern University, Yong Bai, Ph.D., Marquette University, Pei-Sung Lin, Ph.D., University of South Florida, Steven I Jy Chien, Ph.D., New Jersey Institute of Technology, Yongping Zhang, Ph.D., California State Polytechnic University, and Lin Zhu, Ph.D., Shanghai University of Engineering Science
ISBN (Online): 978-0-7844-8290-2
Copyright
© 2020 American Society of Civil Engineers.
History
Published online: Jun 29, 2020
Published in print: Jun 29, 2020
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