Please use this identifier to cite or link to this item:
Title: Performance of Field and Numerical Back-Analysis of Floating Stone Columns in Soft Clay Considering the Influence of Dilatancy
Authors: Ong, DEL
Sim, YS
Leung, CF 
Issue Date: 1-Oct-2018
Publisher: American Society of Civil Engineers (ASCE)
Citation: Ong, DEL, Sim, YS, Leung, CF (2018-10-01). Performance of Field and Numerical Back-Analysis of Floating Stone Columns in Soft Clay Considering the Influence of Dilatancy. International Journal of Geomechanics 18 (10) : 04018135-04018135. ScholarBank@NUS Repository.
Abstract: Stone column use has gained popularity around the globe as an effective ground improvement technique to improve the loadbearing capacity of soft soils. End-bearing stone columns are commonly used, but occasionally floating stone columns are adopted since they have been proven to achieve the necessary load-carrying capacity and serviceability requirements. However, stone column parameters are often estimated without much basis for simulation and design purposes due to a lack of practical research and real-life case studies in this area. Hence, in order to develop a fundamental understanding of the load-settlement responses of floating stone columns in soft clays, detailed backanalysis was performed in this study. Throughout the back-analysis, all the numerical models were validated by comparing the analysis results with field measurements. This study highlights the existence of some critical interpreted parameters, namely soil cohesion c', friction angle ϕ' and dilation angle ψ' as well as the soil-structure interaction mechanism that influences the load-settlement responses of the floating stone columns. The successful characterization of the stone column materials and the modeling technique of stone columns in finite element analyses show great potential in assessing the real-life performance of floating stone columns in soft clays.
Source Title: International Journal of Geomechanics
ISSN: 15323641
DOI: 10.1061/(ASCE)GM.1943-5622.0001261
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
2019 Dominic stone column IJOG.pdf5.34 MBAdobe PDF




checked on Jun 5, 2023

Page view(s)

checked on Jun 8, 2023


checked on Jun 8, 2023

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.