Geotechnical Engineering Journal of the SEAGS & AGSSEA ISSN 0046-5828
Vol. 49 No.1 March 2018
Effectiveness of Stone Column Reinforcement for Stabilizing Soft Ground with Reference to Transport Infrastructure
By S. Basack, B. Indraratna and C. Rujikiatkamjorn
ABSTRACT: The use of stone columns for soft soil stabilization has numerous advantages compared to other methods. There are many factors controlling performance of stone columns including column geometry and particle morphology. The reinforced soft ground supporting transport infrastructure like the railways and highways is subjected to cyclic loading, usually initiating a partially drained condition. The study reveals that the stone columns are more effective in mitigating the built up of cyclic excess pore water pressure compared to conventional vertical drains. This paper presents a brief overview on the rigorous theoretical and experimental studies carried out by the Authors to investigate the effectiveness of stone column reinforcement for stabilizing soft ground with particular reference to transport infrastructure.
KEYWORDS: Arching, Clogging, Cyclic stress, Ground settlement, Radial consolidation, Stress concentration
