Generalized Stability Analysis of Reinforced Embankments on Soft Clay

Sabhahit, N and Basudhar, P K and Madhav, Madhira R and Miura, N (1994) Generalized Stability Analysis of Reinforced Embankments on Soft Clay. Geotextiles and Geomembranes, 13 (12). pp. 765-780. ISSN 0266-1144

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By modifying Janbu's generalized procedure of slices (GPS), the stability of a reinforced embankment constructed on a non-homogeneous clay deposit of finite depth is analysed to compute the factor of safety. The non-circular critical surface corresponding to the minimum factor of safety is obtained by a sequential unconstrained minimization technique in conjunction with a conjugate direction method for a multidimensional search and a quadratic interpolation technique for a unidimensional search. The effect of the thickness of the desiccated zone and the variation of undrained shear strength of clay with depth on the factor of safety is considered in the analysis. The influence of the tensile reinforcement force on the location of the critical surface is presented. The effects of the tensile reinforcement force and its orientation as well as the number of reinforcing layers on the stability of embankment have also been studied. The results obtained from the present analysis are compared with solutions reported in the literature.

Item Type: Article
Subjects: Engineering > MIT Manipal > Civil Engineering
Depositing User: MIT Library
Date Deposited: 08 Sep 2011 05:11
Last Modified: 08 Sep 2011 05:11

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