Factor of Safety of a Consolidating Slope by Finite Element Method

Krishnamoorthy, Agrahara (2010) Factor of Safety of a Consolidating Slope by Finite Element Method. Indian Geotechnical Journal, 40 (2). pp. 116-123. ISSN 0046-8983

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Abstract

Factor of safety of a consolidating slope is obtained at various time intervals using finite element method. Four noded isoparametric plane strain element with two translational degrees of freedom is used to model the soil deformation. Pore pressure in soil is also modeled using four noded isoparametric element. Displacement and pore pressure in soil are coupled and the resulting equations are solved to obtain the displacement and pore pressure in soil at various time intervals from the beginning of consolidation up to the end of consolidation. Effective stresses in soil are obtained using finite element method whereas the critical slip surface and factor of safety of a slope is obtained using a Monte Carlo technique. The analysis is used to obtain the factor of safety, pore pressure and effective stresses in soil at various time intervals. It is concluded from the study that the method of combining the finite element method to determine effective stresses and Monte Carlo technique to determine the critical slip surface is simple and can be used to obtain time factor of safety of a consolidating slope at various time interval.

Item Type: Article
Uncontrolled Keywords: Consolidating slope, Time dependent analysis; Slope stability, Factor of safety, Finite element analysis
Subjects: Engineering > MIT Manipal > Civil Engineering
Depositing User: MIT Library
Date Deposited: 26 Aug 2013 09:23
Last Modified: 26 Aug 2013 09:23
URI: http://eprints.manipal.edu/id/eprint/136906

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