The present study involved the development of a mechanical model to study the behaviour of extensible-geosynthetic-reinforced granular fill resting on stone-column-improved soft soil. The stone column, geosynthetic layer, soft soil and granular fill were idealised by stiffer Winkler springs, rough elastic membrane, Kelvin–Voight model and Pasternak shear layer, respectively. Plane strain conditions were considered in the analysis. An iterative finite difference procedure was applied to obtain the solutions and the results are presented in non-dimensional form. The results indicate that inclusion of the geosynthetic layer (inextensible or extensible) effectively reduced the total as well as the differential settlement. However, the use of inextensible geosynthetic reinforcement was more effective than extensible geosynthetic reinforcement to reduce settlement and increase the stress concentration ratio.
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November 2010
Research Article|
November 01 2010
Extensible geosynthetics and stone-column-reinforced soil Available to Purchase
K. Deb, PhD;
K. Deb, PhD
Assistant Professor
Department of Civil Engineering, Indian Institute of Technology Kharagpur, India
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P. K. Basudhar, PhD;
P. K. Basudhar, PhD
Professor
Department of Civil Engineering, Indian Institute of Technology Kanpur, India
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S. Chandra, PhD
S. Chandra, PhD
Professor
School of Civil Engineering, Surveying and Construction, University of Kwazulu-Natal, Howard College Campus, Durban, South Africa
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Publisher: Emerald Publishing
Revision Received:
October 30 2009
Accepted:
April 23 2010
Online ISSN: 1755-0769
Print ISSN: 1755-0750
© 2010 Thomas Telford Ltd
2010
Proceedings of the Institution of Civil Engineers - Ground Improvement (2010) 163 (4): 231–236.
Article history
Revision Received:
October 30 2009
Accepted:
April 23 2010
Citation
Deb K, Basudhar PK, Chandra S (2010), "Extensible geosynthetics and stone-column-reinforced soil". Proceedings of the Institution of Civil Engineers - Ground Improvement, Vol. 163 No. 4 pp. 231–236, doi: https://doi.org/10.1680/grim.2010.163.4.231
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