Improvement of Soft Clay Using Geosynthetic Encased Stone Columns, Considering Pre-bulging
Publish place: 9th International Congress on Civil Engineering
Publish Year: 1391
Type: Conference paper
Language: English
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Document National Code:
ICCE09_1131
Index date: 28 September 2012
Improvement of Soft Clay Using Geosynthetic Encased Stone Columns, Considering Pre-bulging abstract
The use of geosynthetic encased stone columns as a method for soft soil treatment is extensively used to increase the bearing capacity and reduce the settlement of raft foundations and the foundation of structures like embankment. Pre-bulging is an effect occurring during stone column installation due to the compaction of the material in the column. The present study uses Plaxis to present a numerical analysis of the soft clay bed reinforced by geosynthetic encased stone column and the pre-bulging action in the encased column during installation has been considered in the analysis. The results of the analysis show that improved stiffness of the encased stone column is not only due to confining pressure offered by geosynthetic after loading; but the radial expansion of the stone column occurred during installation also contributes to the enhancement stiffness of the stone column and the reducing settlement
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Improvement of Soft Clay Using Geosynthetic Encased Stone Columns, Considering Pre-bulging authors
Hossein Pichka
M.Sc student in Geotechnical Engineering, Port of Young Researchers Club
Asskar Janalizadeh Choobbasti
Associate Professor, Department of Civil Engineering, Babol University of Technology
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