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Consolidation behavior of clayey soils under radial drainage

Sridharan, A and Prakash, K and Asha, SR (1996) Consolidation behavior of clayey soils under radial drainage. In: Geotechnical Testing Journal, 19 (4). pp. 421-431.

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For Barren's degree of consolidation, U-r, versus the time factor, T-r, relationship for soils undergoing consolidation with radial drainage for the equal vertical strain condition, a simple method has been developed to determine the value of the coefficient of consolidation with radial drainage c(r). Theoretical log(10)(d(e)(2)/t) versus U-r curves where d(e) is the diameter of influence and r is the real time for the different known value of c(r) have been generated. A method has been developed wherein both the theoretical and experimental behaviors of soils undergoing consolidation with radial drainage can be simultaneously compared and studied on the same plot. The experimental log(10)(d(e)(2)/t) versus U-r curves have been compared with the theoretical curves. Effects of initial compression, secondary compression, and duration of load increment are studied. Simple procedures are presented for calculating the values of c(r) using the experimental log(10)(d(e)(2)/t) versus U-r curves. A comparative study of the coefficient of consolidation and the coefficient of permeability between the cases of vertical and radial drainage has been done.

Item Type: Journal Article
Publication: Geotechnical Testing Journal
Publisher: ASTM international
Additional Information: Copyright of this article belongs to ASTM international.
Keywords: strain;time factor;behavior;soils;consolidation;drainage; compression;clay;permeability;time variations;clastic rocks; sedimentary rocks;
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Date Deposited: 21 Apr 2011 09:33
Last Modified: 21 Apr 2011 09:33
URI: http://eprints.iisc.ac.in/id/eprint/37089

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