Performance of flexible retaining walls supporting dry cohesionless soils under cyclic loads
作者:
Raj Siddharthan,
Emmanuel M. Maragakis,
期刊:
International Journal for Numerical and Analytical Methods in Geomechanics
(WILEY Available online 1989)
卷期:
Volume 13,
issue 3
页码: 309-326
ISSN:0363-9061
年代: 1989
DOI:10.1002/nag.1610130307
出版商: John Wiley&Sons, Ltd
数据来源: WILEY
摘要:
AbstractA finite element model is proposed for studying the seismic response of a flexible retaining wall/soil system. The model accounts for nonlinear hysteretic soil behaviour, and also for the increase in lateral stresses and settlement related to grain slip caused by cyclic loads. The response computed by the proposed method was compared with responses recorded at the Cambridge centrifuge facility, and found to be in reasonable agreement. The model was then used to identify the importance of factors such as flexibility of the wall and relative density of the backfill. The study reveals that the maximum bending moments given by current design procedures are nonconservative for stiffer walls. Deflections of flexible walls are of major concern. Flexible walls supporting a sand of medium density yield the greatest deflection.
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