Cookies

We use cookies to ensure that we give you the best experience on our website. You can change your cookie settings at any time. Otherwise, we'll assume you're OK to continue.


Durham Research Online
You are in:

Simple plasticity-based prediction of the undrained settlement of shallow circular foundations on clay.

Osman, A. S. and Bolton, M. D. (2005) 'Simple plasticity-based prediction of the undrained settlement of shallow circular foundations on clay.', Géotechnique., 55 (6). pp. 435-447.

Abstract

A kinematic plastic solution has been developed for the penetration of a circular footing into an incompressible soil bed. In this solution, the pattern of deformation around the footing is idealised by a simple plastic deformation mechanism. Strain-hardening behaviour and nonlinear stress–strain characteristics are incorporated. This application is different from conventional applications of plasticity theory as it can approximately predict both stresses and displacements under working conditions. This approach therefore provides a unified solution for design problems in which both serviceability and safety requirements are based directly on the stress–strain behaviour of the soil. The design strength that should limit the deformations can be selected from the actual stress– strain data recorded from a carefully specified location, and not derived using empirical safety factors. The validity of this design approach is examined against nonlinear finite element analyses and field measurements of foundations on clay under short-term loading.

Item Type:Article
Keywords:Clays, Deformation, Design, Footings, Foundations, Plasticity, Theoretical analysis.
Full text:PDF - Published Version (264Kb)
Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1680/geot.2005.55.6.435
Record Created:15 Jul 2008
Last Modified:10 Aug 2011 09:24

Social bookmarking: del.icio.usConnoteaBibSonomyCiteULikeFacebookTwitterExport: EndNote, Zotero | BibTex
Usage statisticsLook up in GoogleScholar | Find in a UK Library