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Analysis of the consolidation of preloaded clays

Sridharan, A and Chacko, A and Abraham, BM and Jose, BT (1999) Analysis of the consolidation of preloaded clays. In: 11th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, AUG 16-20, 1999, Seoul, South Korea.

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Abstract

Precompression, wherein the probable settlements are achieved at an accelerated pace through preloading, well before the construction is take up, has been widely used in areas of ground improvement with respect to soft clays. By applying a temporary surcharge load in excess or less than the permanent load, the soil achieves higher initial effective stress and when the final load is applied, the soil experiences, lower load increment ratio or negative load increment ratio. In this paper, based on the laboratory experiments conducted on cochin marine clays and Mangalore marine clays, attempts have been made to analyse the volume change behaviour of preloaded clays. It has been brought out that for a preloaded clay, the final load increment ratio has an important role in its behaviour. Effective preloading not only reduces the final settlement due to primary, the secondary consolidation settlement also gets reduced.

Item Type: Conference Paper
Additional Information: Copyright of this article belongs to A A Balkema.
Department/Centre: Others
Date Deposited: 16 Mar 2012 08:34
Last Modified: 16 Mar 2012 08:34
URI: http://eprints.iisc.ernet.in/id/eprint/43915

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