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Analysis And Estimation Of The Coefficient Of Consolidation

Raju, PSR and Pandian, NS and Nagaraj, TS (1995) Analysis And Estimation Of The Coefficient Of Consolidation. In: Geotechnical Testing Journal, 18 (2). pp. 252-258.

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Consolidation is one of the most important behaviors of saturated fine-grained soils that needs to be understood for settlement analysis of these soils. The two most important aspects of laboratory consolidation tests are: (1) estimation of the compression index (C-c), used to predict total settlement of normally consolidated soils provided the void ratio versus log (effective stress) is linear; and (2) the coefficient of consolidation (C-v), used to predict the rate of settlement in the range of primary consolidation. Several researchers have proposed various graphical methods for obtaining estimates of C-v from laboratory oedometer tests. Olson (1985) concluded that since different graphical methods estimate different values for C-v for the same data, the only rational way to estimate the C-v value is to base it on the coefficient of volume compressibility (m(v)) and the coefficient of permeability (k). Guided by these considerations, an attempt has been made to establish the feasibility of estimating C-v using stress state-permeability relationships (Nagaraj et al. 1993). The input parameters are the liquid-limit void ratio (e(L)) and the overburden pressure (p).

Item Type: Journal Article
Publication: Geotechnical Testing Journal
Publisher: ASTM International
Additional Information: Copyright of this article belongs to ASTM International.
Keywords: Engineering,Geological;Geosciences,Multidisciplinary; Clays;Liquid Limit;Compressibility;Permeability; Coefficient Of Consolidation;Prediction
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Date Deposited: 21 Feb 2010 08:09
Last Modified: 21 Feb 2010 08:09
URI: http://eprints.iisc.ac.in/id/eprint/19144

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