Active and passive earth pressure coefficients by a kinematical approach

A simple method is proposed for calculating the active and passive earth pressure coefficients in the general case of an inclined wall and a sloping backfill. The approach used is based on rotational log-spiral failure mechanisms in the framework of the upper-bound theorem of limit analysis. It is s...

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Published in:Proceedings of the Institution of Civil Engineers. Geotechnical engineering 2002-04, Vol.155 (2), p.119-131
Main Authors: Soubra, A.-H., Macuh, B.
Format: Article
Language:English
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Civil Engineering
Engineering Sciences
Géotechnique
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description A simple method is proposed for calculating the active and passive earth pressure coefficients in the general case of an inclined wall and a sloping backfill. The approach used is based on rotational log-spiral failure mechanisms in the framework of the upper-bound theorem of limit analysis. It is shown that the energy balance equation of a rotational log-spiral mechanism is equivalent to the moment equilibrium equation about the centre of the log-spiral. Numerical optimisation of the active and passive earth pressure coefficients is performed automatically by a spreadsheet optimisation tool. The implementation of the proposed method is illustrated using an example. The predictions by the present method are compared with those given by other authors.
doi_str_mv 10.1680/geng.2002.155.2.119
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source Institution of Civil Engineers Publishing: JISC Collections:Virtual Library Archive (1836-2001); Institution of Civil Engineers
subjects Civil Engineering
Engineering Sciences
Géotechnique
title Active and passive earth pressure coefficients by a kinematical approach
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