Centrifuge modelling of fibre-reinforcement using as a liquefaction countermeasure of quay wall backfill

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Abstract

Two centrifuge tests were carried out to evaluate the use of fibre-reinforcement to mitigate backfill liquefaction induced damage behind a caisson type quay wall. Liquefiable clean sand backfill was applied in one test as a benchmark of the other in which the whole backfill was fibre-reinforced. The presence of fibres in backfill effectively reduced lateral displacement of quay wall and backfill settlement. Quay wall outward displacement induced an excess pore pressure drop in the clean sand backfill adjacent to the back of quay wall, while this phenomenon did not occur in fibre-reinforced backfill. Increase of shear strength and self-supporting behaviour at large shear strain may be the beneficial effects of fibre-reinforcement.
Original languageEnglish
PagesPaper no. 61
Number of pages8
Publication statusPublished - 1 Nov 2015
Event6th International Conference on Earthquake Geotechnical Engineering - Christchurch, New Zealand
Duration: 1 Nov 20154 Nov 2015
http://www.6icege.com/ (Link to Conference website)

Conference

Conference6th International Conference on Earthquake Geotechnical Engineering
Abbreviated title6ICEGE
CountryNew Zealand
CityChristchurch
Period1/11/154/11/15
Internet address

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    Wang, K., & Brennan, A. (2015). Centrifuge modelling of fibre-reinforcement using as a liquefaction countermeasure of quay wall backfill. Paper no. 61. Paper presented at 6th International Conference on Earthquake Geotechnical Engineering, Christchurch, New Zealand.