Effects of Densification and Stiffening on Liquefaction Risk of Reinforced Soil by Stone Columns
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 143, Issue 10
Abstract
The installation of stone columns is widely adopted to prevent liquefaction. The main improvement mechanisms of stone columns as a liquefaction countermeasure are drainage, stiffening, and densification. This paper investigates the effectiveness of stone columns as a liquefaction remediation. Twenty-four case studies, in which SPT and CPT tests are performed before and after stone column reinforcement, are used as a basis of the research. Densification and stiffening mechanisms are investigated and their individual and combined effects are analyzed. Comparative results indicate that considering the densification and stiffening effects considerably improve the assessment of liquefaction potential of reinforced soil by stone columns.
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Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 143 • Issue 10 • October 2017
Copyright
©2017 American Society of Civil Engineers.
History
Received: Jun 24, 2016
Accepted: Apr 26, 2017
Published online: Jul 27, 2017
Published in print: Oct 1, 2017
Discussion open until: Dec 27, 2017
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