CUED Publications database

Modelling of waterfront cantilever sheet pile walls subjected to earthquake loading

Berry, AG and Madabhushi, SPG (2007) Modelling of waterfront cantilever sheet pile walls subjected to earthquake loading. Geomechanics and Geoengineering, 2. pp. 207-218. ISSN 1748-6025

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Abstract

The seismic performance of waterfront cantilever sheet pile retaining walls is of continuing interest to geotechnical engineers as these structures suffer severe damage and even complete failure during earthquakes. This is often precipitated by liquefaction of the surrounding soil, either in the backfill or in front of the wall. This paper presents results from a series of small-scale plane strain models that were tested on a 1-g shaking table and recorded using a high-speed, high-resolution digital camera. The technique of Particle Image Velocimetry (PIV) was applied in order to allow the failure mechanisms to be visualised. It is shown that using PIV analyses it is possible to obtain failure mechanisms for a cantilever wall in liquefiable soil. These failure mechanisms are compared with those obtained for a cantilever wall in dry soil, previously carried out at a similar scale. It was observed that seismic liquefaction causes significant displacement in much larger zones of soil near the retaining wall compared to an equivalent dry case. The failure mechanism for a cantilever wall with liquefiable backfill, but with a remediated zone designed not to liquefy, is also presented and compared to the unremediated case.

Item Type: Article
Uncontrolled Keywords: Earthquakes Failure mechanisms Liquefaction Retaining wall Shaking table tests
Subjects: UNSPECIFIED
Divisions: Div D > Geotechnical and Environmental
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:31
Last Modified: 27 Nov 2014 19:21
DOI: 10.1080/17486020701493996