dc.contributor.author |
Abiram, P |
|
dc.contributor.author |
Hidallana-Gamage, HD |
|
dc.contributor.editor |
Hettiarachchi, P |
|
dc.date.accessioned |
2022-05-18T05:54:33Z |
|
dc.date.available |
2022-05-18T05:54:33Z |
|
dc.date.issued |
2021-11 |
|
dc.identifier.citation |
Abiram, P. & Hidallana-Gamage, H.D. (2021). Characteristic analysis of embedded wave barrier material beside railway tracks [Abstract]. In P. Hettiarachchi (Ed.), Proceedings of Civil Engineering Research Symposium 2021 (p. 1). Department of Civil Engineering, University of Moratuwa. |
en_US |
dc.identifier.uri |
http://dl.lib.uom.lk/handle/123/17855 |
|
dc.description.abstract |
Rail transport is one of the most effective modes of transporting goods and people among various
access points. It has several benefits compared to some of the other modes of transport, such as
safety, cost effectiveness, time saving, and high capacity. Forces from the result of passing vehicles
and irregularities at the wheel-rail interaction, penetrate through wheel into the track, and generates
vibration. The scenarios of increasing traffic congestion and civil infrastructure development in
Sri Lanka, have led to the concern about the improvement of railway transportation free from
propagation of vibration through ground. Using embedded barrier material within a trench beside
the railway track is an effective active control strategy practiced in most of the Railway
transportation sectors around the world. In this research, characteristics of the material which is
used as a vibration controlling layer embedded beside the railway track within the subsoil are
analysed. Initially a finite element model of a railway track was developed, and then it was
validated with the field vibration measurements available in the literature. Later a parametric study
was carried out by varying the properties of the vibration controlling layer within the subsoil. The
vibration characteristics were compared at 2 and 3 m depths, for different Elastic modulus, density,
and void ratios of the material. It was evident that barrier material with lower elastic modulus
provides a better vibration screening performance. If the available barrier material has a high
elastic modulus, it should be constructed deep enough to provide a better vibration screening
performance. For a given depth of an embedded barrier layer, there will be an optimum unit weight,
which provides a high performance of screening. It was also found that, 2 m deep barrier provides
better performance than the 3 m deep barrier for a given unit weight. Increasing the void ratio will
increase the pores inside the material, and hence will increase the performance of the barrier. A
shallow barrier provides better performance up to a certain value of void ratio, beyond which the
performance is independent of the depth of the barrier. Overall, findings of this research elaborate
the optimum material characteristics of a vibration controlling layer for train induced ground
vibration in different depths. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Department of Civil Engineering, University of Moratuwa |
en_US |
dc.subject |
Train induced ground vibration |
en_US |
dc.subject |
Embedded wave barrier material |
en_US |
dc.subject |
Finite element modelling |
en_US |
dc.subject |
Peak particle velocity |
en_US |
dc.title |
Characteristic analysis of embedded wave barrier material beside railway tracks |
en_US |
dc.type |
Conference-Abstract |
en_US |
dc.identifier.faculty |
Engineering |
en_US |
dc.identifier.department |
Department of Civil Engineering |
en_US |
dc.identifier.year |
2021 |
en_US |
dc.identifier.conference |
Civil Engineering Research Symposium 2021 |
en_US |
dc.identifier.place |
Katubedda |
en_US |
dc.identifier.pgnos |
p. 1 |
en_US |
dc.identifier.proceeding |
Proceedings of Civil Engineering Research Symposium 2021 |
en_US |
dc.identifier.email |
pathmanathanabiram@gmail.com |
en_US |