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Ground Improvement Case-Histories by Cholachat Rujikiatkamjorn, Jian Chu, Buddhima Indraratna

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Chapter 26

Theoretical and Numerical Perspectives on Performance of Stone-Column-Improved Soft Ground with Reference to Transport Infrastructure

Sudip Basack; Buddhima Indraratna; Cholachat Rujikiatkamjorn; Firman Siahaan    Centre for Geomechanics and Railway Engineering, Faculty of Engineering and Information Sciences, University of Wollongong, NSW, Australia

Abstract

In this chapter, an axisymmetric solution is presented to study the performance of soft ground reinforced with stone columns with special emphasis on transport infrastructure. For typical surcharge (embankment) loading, significant column-to-soil stiffness ratio and the flexible nature of the embankment initiate the fill weight to “arch over” the stone columns, imposing uneven ...

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