Abstract
Granular columns are quite common in soft soils, mostly in clays, for improving pressure-settlement behavior of concern foundation. Load transmission in granular column mechanized by grain-to-grain contact and/or deriving resistance through interfacial interaction. Performance of such columns are highly depended on native soil condition which imparts passive pressure against the possible bulging in different configurations. Parameters, such as geometry (length and diameter), quality of in-filled aggregates, drainage condition, application of reinforcements etc., are responsible for the variations in performances. Phenomenon such as squeezing of soft clay into the aggregates and vice-versa reduces the functionality of granular column. Reinforcing the granular column with anchors, horizontal and 3-dimensional encapsulation has been very effective in enhancing the performance and/or reducing the detrimental effects. Studies have indicated the benefits and/or restrictions using granular columns under various parametric alterations. This paper presents a brief review on such parametric effects on granular columns under varying configurations and conditions.
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Acknowledgements
The authors sincerely acknowledge the support received from DHESTBT, Govt. of West Bengal, India [Memo No. 183(Sanc.)/ST/P/S&T/6G-33/2017 dated 16/03/2018].
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Ghose, S., Biswas, A., Mandal, U. (2022). Parametric Effect on Granular Columns: A Brief Review. In: Dey, A.K., Mandal, J.J., Manna, B. (eds) Proceedings of the 7th Indian Young Geotechnical Engineers Conference. IYGEC 2019. Lecture Notes in Civil Engineering, vol 195. Springer, Singapore. https://doi.org/10.1007/978-981-16-6456-4_10
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