Investigating the Optimized Open V-Shaped Trench Performance in Reduction of Train-Induced Ground Vibrations
Publication: International Journal of Geomechanics
Volume 14, Issue 3
Abstract
An effective strategy in reducing train-induced vibrations on neighboring structures is to use open trenches on both sides of the railway lines. This paper investigates the effect of the trench’s shape on its performance. For this purpose, a V-shaped trench was first modeled using finite-element code, and its efficiency was confirmed in reducing the induced vibrations caused by passing the MD36 passenger bogie in comparison with a rectangular-shaped trench. In this regard, results indicate that the maximum values of the amplitude reduction ratio () for the ground displacement before the V-shaped trench for train speeds of were 1.17 and 1.28, respectively, which were less than the value of 2 obtained for the rectangular trench. In the final stage, an optimization algorithm was used to present the procedure of calculating optimized shape of the proposed V-shaped trench for various train speeds.
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Published In
International Journal of Geomechanics
Volume 14 • Issue 3 • June 2014
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Aug 14, 2012
Accepted: Jun 7, 2013
Published online: Jun 11, 2013
Published in print: Jun 1, 2014
Discussion open until: Aug 19, 2014
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