Shock wave attenuation by geotextile encapsulated sand barrier systems

Vivek, Padmanabha and Sitharam, Thallak G (2017) Shock wave attenuation by geotextile encapsulated sand barrier systems. In: GEOTEXTILES AND GEOMEMBRANES, 45 (3). pp. 149-160.

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Abstract

This paper presents a laboratory scale experimental technique to study the performance of the encapsulated sand barrier systems in mitigating shock waves. The geotextile encapsulated sand barrier systems are made of cubical wire mesh formwork lined with geotextile and form a thick protective barrier when filled with granular materials. In the present study, dry sand particles of size varying from microns to few millimeters (fine and coarse) are used as infill granular material. Spherical shaped glass beads are also used as the infill material to study the influence of shape of the infill particle on the attenuation behavior. The process of shock wave attenuation by the sand barrier, with and without the geotextile facing formwork is examined. The experiments are performed using a conventional shock tube, where shock waves with incident Mach number in the range of 129-1.70 are generated. The experimental results show that the presence of geotextile layer has contributed significantly towards shock wave attenuation. The geotextile also plays an important role as a regulator, which is able to deliver gradual pressure rise at the downstream end of the barrier. (C) 2017 Elsevier Ltd. All rights reserved.

Item Type:	Journal Article
Publication:	GEOTEXTILES AND GEOMEMBRANES
Additional Information:	Copy right for this article belongs to the ELSEVIER SCI LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
Department/Centre:	Division of Mechanical Sciences > Civil Engineering
Date Deposited:	10 Jun 2017 04:37
Last Modified:	10 Jun 2017 04:37
URI:	http://eprints.iisc.ac.in/id/eprint/57139

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