Experimental validation of a numerical model for the ground vibration from trains in tunnels
Experimental validation of a numerical model for the ground vibration from trains in tunnels
Ground vibration and ground-borne noise from trains in tunnels are attracting increasing attention from researchers and engineers. They are important environmental issues related with the operation of underground networks in intensively-populated urban areas. An accurate prediction for this train-induced vibration can be very helpful in the implementation of countermeasures to achieve the control of vibration or noise levels. In this paper, a numerical model is introduced based on the 2.5D Finite Element / Boundary Element methodology. The part of the metro line concerned is built with a cast-iron tunnel lining. The tunnel structure and the track are modelled with finite elements while the ground is modelled using boundary elements. Then the 2.5D tracktunnel-ground model is coupled with a multiple-rigid body vehicle model to determine the response caused by the passage of a train. To validate the prediction results, measurements have been carried out of the vibration of the rail, tunnel invert, tunnel wall and ground surface when the train is passing by and these are compared with the predictions with good agreement.
Jin, Q.
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Thompson, D.
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Toward, M.
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Ntotsios, E.
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Hussein, M.
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2015
Jin, Q.
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Thompson, D.
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Toward, M.
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Ntotsios, E.
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Hussein, M.
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Jin, Q., Thompson, D., Toward, M., Ntotsios, E. and Hussein, M.
(2015)
Experimental validation of a numerical model for the ground vibration from trains in tunnels.
10th European Congress and Exposition on Noise Control Engineering (EURONOISE), Maastricht, Netherlands.
31 May - 03 Jun 2015.
Record type:
Conference or Workshop Item
(Paper)
Abstract
Ground vibration and ground-borne noise from trains in tunnels are attracting increasing attention from researchers and engineers. They are important environmental issues related with the operation of underground networks in intensively-populated urban areas. An accurate prediction for this train-induced vibration can be very helpful in the implementation of countermeasures to achieve the control of vibration or noise levels. In this paper, a numerical model is introduced based on the 2.5D Finite Element / Boundary Element methodology. The part of the metro line concerned is built with a cast-iron tunnel lining. The tunnel structure and the track are modelled with finite elements while the ground is modelled using boundary elements. Then the 2.5D tracktunnel-ground model is coupled with a multiple-rigid body vehicle model to determine the response caused by the passage of a train. To validate the prediction results, measurements have been carried out of the vibration of the rail, tunnel invert, tunnel wall and ground surface when the train is passing by and these are compared with the predictions with good agreement.
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ExperimentalValidation_000344.pdf
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Accepted/In Press date: 31 May 2015
Published date: 2015
Venue - Dates:
10th European Congress and Exposition on Noise Control Engineering (EURONOISE), Maastricht, Netherlands, 2015-05-31 - 2015-06-03
Organisations:
Dynamics Group
Identifiers
Local EPrints ID: 389565
URI: http://eprints.soton.ac.uk/id/eprint/389565
PURE UUID: bd19c6a3-37ab-420f-b60f-5fc8aa548f8d
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Date deposited: 16 Mar 2016 10:35
Last modified: 15 Mar 2024 03:48
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Contributors
Author:
Q. Jin
Author:
M. Toward
Author:
M. Hussein
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