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Analysis of consolidation data by a non-graphical matching method

Robinson, RG and Allam, MM (1998) Analysis of consolidation data by a non-graphical matching method. In: Geotechnical Testing Journal, 21 (2). pp. 140-143.

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Official URL: http://www.astm.org/JOURNALS/GEOTECH/PAGES/271.htm


Conventionally the laboratory time-compression data from an odometer test are analyzed by graphical methods. This involves the determination of initial compression, delta(i), total primary consolidation, delta(100), and coefficient of consolidation, C-v. The advent of computer-controlled data-logging systems calls for adoption of non-graphical techniques for analysis of consolidation test data. In this Technical Note a non-graphical matching method is proposed for analyzing the time-compression data. The values of delta(i), delta(100), and C-v can be obtained by direct matching with the theory. The computed time-compression curve for this C-v value matches very well with the experimental data in the primary consolidation phase. The proposed method is also applicable to consolidation under conditions of radial drainage. The method will be very useful if the data are collected through computer-driven data-logging systems

Item Type: Journal Article
Publication: Geotechnical Testing Journal
Publisher: ASTM International
Additional Information: Copy right of this article belongs to ASTM International.
Keywords: Coefficient of consolidation;compressibility;vertical and radial drainage;graphical methods;matching method.
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Date Deposited: 04 Mar 2009 05:58
Last Modified: 04 Mar 2009 05:58
URI: http://eprints.iisc.ac.in/id/eprint/17958

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