| Issue |
MATEC Web Conf.
Volume 103, 2017
International Symposium on Civil and Environmental Engineering 2016 (ISCEE 2016)
|
|
|---|---|---|
| Article Number | 07005 | |
| Number of page(s) | 7 | |
| Section | Geotechnic, Geoenvironment and Geomatic Engineering | |
| DOI | https://doi.org/10.1051/matecconf/201710307005 | |
| Published online | 05 April 2017 | |
Numerical Evaluation on the Different Shapes of Gravelly Sand Columns to Increase the Loading Capacity of Soft Clay
1 Universiti Tun Hussein Onn Malaysia, Batu Pahat, Johor, Malaysia
2 Research Centre for Soft Soil, University of Tun Hussein Onn, Malaysia
3 University Sains Malaysia
* Corresponding author: aziman@uthm.edu.my
Improvement on soft clay by the installation of stone column is one of the most popular methods followed worldwide. Different analytical and numerical solutions have already been developed for understanding the load transfer mechanism of soft soil reinforced with stone column. This study investigated a bearing capacity of the gravelly sand column, installed in soft clay bed at 15kpa of undrained shear strength. The column variable of length and diameter ratio at 7, 8 and 9 were evaluated. On top of that, the combination of two diameters in single column was tested and the uniform diameter was used as a control. In the numerical analysis, Mohrcoulomb model was adopted in the idealization of the behaviour of the gravelly sand column and soft clay materials. The results revealed that the optimum design that gave the highest loading capacity of the combination 11=12 of column diameter was the length and diameter ratio of 8.
© The Authors, published by EDP Sciences, 2017
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