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Wave barrier of lime-cement columns against train-induced ground-borne vibrations
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Soil and Rock Mechanics.
Golder Associates AB, S-10460 Stockholm, Sweden .
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Soil and Rock Mechanics.
2009 (English)In: Soil Dynamics and Earthquake Engineering, ISSN 0267-7261, Vol. 29, no 6, 1027-1033 p.Article in journal (Refereed) Published
Abstract [en]

This paper presents a comparison between measured train-induced ground vibrations in the free-field before and after countermeasures had been taken at Kahog near Gothenburg in Sweden. A wave barrier of lime-cement columns was constructed parallel to the railway in order to reduce the ground-borne vibrations inside nearby buildings. On top of the barrier an embankment was built to reduce air-borne vibrations. Due to the wave barrier design, part of the energy content of the waves was expected to be reflected by the screen and transmitted energy was expected to be partly scattered. Contribution from the noise-embankment was not thought likely but could not be ruled out due to its fairly large mass and its close proximity to the railway. The effect of the mitigating measures resulted in a 67% reduction of the maximum particle velocity at 30 m and 41% at 60 m from the railway. A simple two-dimensional finite element model has been used to Study the relative importance of the wave barrier and the noise-embankment as contributors to the mitigation recorded of the ground vibrations in the field. It is concluded with respect to ground vibrations that both the barrier and the embankment had a mitigating effect but that the contribution from the barrier dominated. Furthermore, it is seen from the field results as well as the Simulation that the effect of the mitigating action is reduced with increasing distance from the railway.

Place, publisher, year, edition, pages
2009. Vol. 29, no 6, 1027-1033 p.
Keyword [en]
Wave barrier, Lime-cement columns, Train, Ground-borne vibrations, Mitigation, Countermeasure, prediction, railways
National Category
Geotechnical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-18338DOI: 10.1016/j.soildyn.2008.12.005ISI: 000265002900010Scopus ID: 2-s2.0-61749097510OAI: oai:DiVA.org:kth-18338DiVA: diva2:336384
Note
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2012-01-10Bibliographically approved

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