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http://dx.doi.org/10.7843/kgs.2007.23.5.15

Load Carrying Capacity of Geosynthetic-Reinforced Stone Column in Cohesionless Ground  

Yoo, Chung-Sik (Dept. of Civil & Environ. Engrg., Sungkyunkwan Univ.)
Song, Ah-Ran (Dept. of Civil & Environ. Engrg., Sungkyunkwan Univ.)
Kim, Sun-Bin (Dept. of Civil & Environ. Engrg., Sungkyunkwan Univ.)
Lee, Dae-Young (Department of Geotechnical Engrg., Korea Institute of Construction Technology)
Publication Information
Journal of the Korean Geotechnical Society / v.23, no.5, 2007 , pp. 15-27 More about this Journal
Abstract
This paper deals with the bearing capacity behaviour of geosynthetic-reinforced stone column(GRSC) constructed in soft ground, as part of an investigation regarding the applicability of GRSC in Korea. In this study, two-dimensional finite element analyses were performed to investigate the effect of relevant design factors on the bearing capacity behaviour. The parametric study is performed for various influencing factors. The results indicated that the geogrid encasement tends to significantly improve the load carrying capacity of a stone column. Also found were that the geogrid encasement length and its stiffness significantly affect the load carrying capacity behaviour of GRSC, and that the encasement length of three times the stone column diameter is sufficient in mobilizing the full reinforcement effect. Practical implications of the findings are discussed.
Keywords
Bearing capacity; Geosynthetic; FEM; Soft ground; Stone column;
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Times Cited By KSCI : 1  (Citation Analysis)
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