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Pore pressure effect on slope stability assessment

conference contribution
posted on 2015-01-01, 00:00 authored by Kelvin Lim, An-Jui Li, M Cassidy
Slope stability assessment has been an integral problem for geotechnical engineering all these years. While stability of slopes is affected by various factors, pore pressure is one of the common natural
elements that influence slope stability analysis. This paper studies the effect of pore pressure on slope stability assessment by using Limit Equilibrium Method (LEM). The results will be compared to the solutions of Hoek and Bray charts. In this study, slopes with different levels of water table corresponding to those of Hoek and Bray charts are investigated. It’s interesting to observe that the results obtained from the Hoek and Bray charts yielded different factor of safety compare to those in the study here-in. In fact, the different between the factors of safety could be up to 30%. Hence this issue should be taken into consideration during slope design.

History

Event

Australia New Zealand Conference on Geomechanics (12th : 2015 : Wellington, NZ)

Pagination

1 - 8

Publisher

ISRM

Location

Wellington, New Zealand

Place of publication

Lisboa, Portugal

Start date

2015-02-22

End date

2015-02-25

Language

eng.

Publication classification

E Conference publication; E1 Full written paper - refereed

Copyright notice

2015, ISRM

Editor/Contributor(s)

G Ramsay

Title of proceedings

ANZ 2015 : Changing the face of the Earth - Geomechanics and Human Influence. Proceedings of the 12th Australia New Zealand Conference on Geomechanics

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