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Rapid method of consolidation testing

Sridharan, A and Nagaraj, HB and Srinivas, N (1999) Rapid method of consolidation testing. In: Canadian Geotechnical Journal / Revue Canadienne de Géotechnique, 36 (2). 392-400 .

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Official URL: http://www.nrcresearchpress.com/doi/abs/10.1139/t9...

Abstract

The determination of consolidation characteristics forms an important aspect in the design of foundations and other earth-retaining structures. The conventional consolidation test as originally proposed by Teaaghi takes considerable time (more than 15 days in highly compressible soils with low coefficient of consolidation) and effort. Any effort to reduce the duration of testing will be desirable from several considerations. In this paper, an attempt has been made to propose a rapid method of consolidation testing. In the proposed method, the next load increment is applied as soon as the necessary time required to identify the percent consolidation is reached and to evaluate the coefficient of consolidation by one of the popular curve-fitting procedures. The rectangular hyperbola method has been used to identify the percent consolidation reached after any load increment, and to determine the coefficient of consolidation, before making the next load increment. The time required to complete the test using the rapid consolidation method could be as low as 4-5 h compared with 1 or 2 weeks in the case of the conventional consolidation test.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to NRC Research Press.
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Date Deposited: 29 Jun 2011 04:17
Last Modified: 29 Jun 2011 04:17
URI: http://eprints.iisc.ernet.in/id/eprint/38741

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