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Field measurements and analyses of environmental vibrations induced by high-speed Maglev.
Sci Total Environ 2016; 568:1295-1307ST

Abstract

Maglev, offers competitive journey-times compared to the railway and subway systems in markets for which distance between the stations is 100-1600km owing to its high acceleration and speed; however, such systems may have excessive vibration. Field measurements of Maglev train-induced vibrations were therefore performed on the world's first commercial Maglev line in Shanghai, China. Seven test sections along the line were selected according to the operating conditions, covering speeds from 150 to 430km/h. Acceleration responses of bridge pier and nearby ground were measured in three directions and analyzed in both the time and frequency domain. The effects of Maglev train speed on vibrations of the bridge pier and ground were studied in terms of their peak accelerations. Attenuation of ground vibration was investigated up to 30m from the track centerline. Effects of guideway configuration were also analyzed based on the measurements through two different test sections with same train speed of 300km/h. The results showed that peak accelerations exhibited a strong correlation with both train speed and distance off the track. Guideway configuration had a significant effect on transverse vibration, but a weak impact on vertical and longitudinal vibrations of both bridge pier and ground. Statistics indicated that, contrary to the commonly accepted theory and experience, vertical vibration is not always dominant: transverse and longitudinal vibrations should also be considered, particularly near turns in the track. Moreover, measurements of ground vibration induced by traditional high-speed railway train were carried out with the same testing devices in Bengbu in the Anhui Province. Results showed that the Maglev train generates significantly different vibration signatures as compared to the traditional high-speed train. The results obtained from this paper can provide good insights on the impact of Maglev system on the urban environment and the quality of human life nearby.

Authors+Show Affiliations

College of Civil Engineering, Tongji University, Shanghai, China.College of Civil Engineering, Tongji University, Shanghai, China; Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong, China.College of Civil Engineering, Tongji University, Shanghai, China. Electronic address: swchen@tongji.edu.cn.Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong, China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

26879415

Citation

Li, Guo-Qiang, et al. "Field Measurements and Analyses of Environmental Vibrations Induced By High-speed Maglev." The Science of the Total Environment, vol. 568, 2016, pp. 1295-1307.
Li GQ, Wang ZL, Chen S, et al. Field measurements and analyses of environmental vibrations induced by high-speed Maglev. Sci Total Environ. 2016;568:1295-1307.
Li, G. Q., Wang, Z. L., Chen, S., & Xu, Y. L. (2016). Field measurements and analyses of environmental vibrations induced by high-speed Maglev. The Science of the Total Environment, 568, pp. 1295-1307. doi:10.1016/j.scitotenv.2016.01.212.
Li GQ, et al. Field Measurements and Analyses of Environmental Vibrations Induced By High-speed Maglev. Sci Total Environ. 2016 Oct 15;568:1295-1307. PubMed PMID: 26879415.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Field measurements and analyses of environmental vibrations induced by high-speed Maglev. AU - Li,Guo-Qiang, AU - Wang,Zhi-Lu, AU - Chen,Suwen, AU - Xu,You-Lin, Y1 - 2016/02/13/ PY - 2015/12/01/received PY - 2016/01/31/revised PY - 2016/01/31/accepted PY - 2016/2/17/entrez PY - 2016/2/18/pubmed PY - 2016/2/18/medline KW - Frequency domain KW - Ground vibration KW - Guideway configuration KW - Maglev KW - Pier vibration KW - Three directional vibrations KW - Time domain SP - 1295 EP - 1307 JF - The Science of the total environment JO - Sci. Total Environ. VL - 568 N2 - Maglev, offers competitive journey-times compared to the railway and subway systems in markets for which distance between the stations is 100-1600km owing to its high acceleration and speed; however, such systems may have excessive vibration. Field measurements of Maglev train-induced vibrations were therefore performed on the world's first commercial Maglev line in Shanghai, China. Seven test sections along the line were selected according to the operating conditions, covering speeds from 150 to 430km/h. Acceleration responses of bridge pier and nearby ground were measured in three directions and analyzed in both the time and frequency domain. The effects of Maglev train speed on vibrations of the bridge pier and ground were studied in terms of their peak accelerations. Attenuation of ground vibration was investigated up to 30m from the track centerline. Effects of guideway configuration were also analyzed based on the measurements through two different test sections with same train speed of 300km/h. The results showed that peak accelerations exhibited a strong correlation with both train speed and distance off the track. Guideway configuration had a significant effect on transverse vibration, but a weak impact on vertical and longitudinal vibrations of both bridge pier and ground. Statistics indicated that, contrary to the commonly accepted theory and experience, vertical vibration is not always dominant: transverse and longitudinal vibrations should also be considered, particularly near turns in the track. Moreover, measurements of ground vibration induced by traditional high-speed railway train were carried out with the same testing devices in Bengbu in the Anhui Province. Results showed that the Maglev train generates significantly different vibration signatures as compared to the traditional high-speed train. The results obtained from this paper can provide good insights on the impact of Maglev system on the urban environment and the quality of human life nearby. SN - 1879-1026 UR - https://www.unboundmedicine.com/medline/citation/26879415/Field_measurements_and_analyses_of_environmental_vibrations_induced_by_high_speed_Maglev_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0048-9697(16)30210-8 DB - PRIME DP - Unbound Medicine ER -