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T chart to evaluate consolidation test results

Tewatia, SK and Venkatachalam, K and Sridharan, A (1998) T chart to evaluate consolidation test results. In: Geotechnical Testing Journal, 21 (03). pp. 270-274.

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Official URL: http://www.astm.org/JOURNALS/GEOTECH/PAGES/285.htm

Abstract

Using Terzaghi's degree of consolidation, U, and the time factor, T, relationship, if M-U1 and M-U2 (M-U1 not equal M-U2) are slopes of the U-root T curve at any two time factors T-U1 and T-U2, then it can be shown that a unique relationship exists between T-U2/T-U1, M-U1/M-U2, and TU, (or TU2), and knowing any two of these, the third can be uniquely determined. A chart, called the T chart, has been plotted using these three variables for quickly determining T and U at any experimental time, t, to determine the coefficient of consolidation, c(v), corrected zero settlement, delta(o), and ultimate primary settlement, delta(100). The chart can be used even in those cases where settlement and time, at the instant of load increment, are not known.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to ASTM International.
Keywords: coefficients;clays;consolidation;laboratory test;slope;rate of settlement.
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Date Deposited: 31 Dec 2009 09:29
Last Modified: 02 May 2011 07:27
URI: http://eprints.iisc.ernet.in/id/eprint/19399

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