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Prediction of extension test results of soft cemented clays with a simple constitutive model

Murthy, BRS and Sitharam, TG and Prasad, KN and Vatsala, A (1997) Prediction of extension test results of soft cemented clays with a simple constitutive model. In: 9th International Conference on Computer Methods and Advances in Geomechanics, NOV 02-07, 1997, Wuhan, Peoples R China.

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Abstract

In the present paper, the constitutive model is proposed for cemented soils, in which the cementation component and frictional component are treated separately and then added together to get overall response. The modified Cam clay is used to predict the frictional resistance and an elasto-plastic strain softening model is proposed for the cementation component. The rectangular isotropic yield curve proposed by Vatsala (1995) for the bond component has been modified in order to account for the anisotropy generally observed in the case of natural soft cemented soils. In this paper, the model proposed is used to predict the experimental results of extension tests on the soft cemented soils whereas compression test results are presented elsewhere. The model predictions compare quite satisfactorily with the observed response. A few input parameters are required which are well defined and easily determinable and the model uses associated flow rule.

Item Type: Conference Paper
Additional Information: Copyright of this article belongs to A A Balkema.
Department/Centre: Others
Date Deposited: 15 Mar 2012 09:47
Last Modified: 15 Mar 2012 09:47
URI: http://eprints.iisc.ernet.in/id/eprint/43947

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