Laboratory Investigation of Geobag Revetment Performance in Rivers

Khajenoori, Leila, Wright, Grant and Crapper, Martin (2021) Laboratory Investigation of Geobag Revetment Performance in Rivers. Geosciences, 11 (8). ISSN 2076-3263

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Official URL: https://doi.org/10.31165/nk.2014.72.335

Abstract

Geobag (sand-filled geotextile bags) revetments have recently emerged as long-term riverbank protection measures in developing countries; however, their performance is still not well understood. The hydraulic stability of geobag revetments used for riverbank protection has been studied within an extensive laboratory programme to improve our understanding of the complete failure processes of geobag revetments. A 1:10 scale distorted physical model was tested in a labor-atory flume, comparing a range of different construction methods and revetment side slopes, sub-jected to different flow loading. The results indicate that whilst failure mechanisms are highly de-pendent on water depth and revetment slope, the construction method had no noticeable impact. It was thus concluded that the dominating factor is the friction between individual geobags, which itself is dependent on bag longitudinal overlap rather than a specific construction method.

Item Type: Article
Uncontrolled Keywords: erosion, failure, geobag, revetment, riverbank
Subjects: F800 Physical and Terrestrial Geographical and Environmental Sciences
F900 Others in Physical Sciences
H100 General Engineering
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Rachel Branson
Date Deposited: 21 Jul 2021 10:44
Last Modified: 22 Jul 2021 14:30
URI: http://nrl.northumbria.ac.uk/id/eprint/46725

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