@article {72786,
	title = {Numerical Study of the Variation of the Voids Ratio of Soil ImprovedStone Column},
	journal = {Iranian Journal of Science and Technology, Transactions of Civil Engineering},
	year = {2022},
	abstract = {This research work is part of the trend of soil reinforcement procedures aimed at improving poor quality soils. Among thesetechniques, those that use stone columns. Although the aspects concerning the construction processes are now well mastered,the design methods of these reinforced soils remain to be developed.A numerical simulation presented to study two unit cell models. The 3D proposed simulation model is subjected to gravityand a static load. The first model presents a unit cell composed of stone column in the center and a surrounding clay soilvolume. The second is converted into an equivalent unit cell (the volume averaging) in terms of physical and mechanicalparameters of a composite material (equivalent parameters).Under the effect of incrementally loading{\textendash}unloading applied to these unit cell models, voids ratio variations and stress pathevolution are analyzed. The results indicate that applying a load to an equivalent unit cell can affect the void ratio-volumetricdeformation curves and increase settlement. The void ratio and the corresponding volumetric deformation decreased bycomparing the equivalent homogenized model with the non-homogenized model. The results show that the void ratiodecreases by about 10\% on average, but the volumetric strain decreases by 80\%. Therefore, the stress path correspondingto the decrease of the average effective stress by 1\% increases the deviatoric stress on average by 10\%. Diagrams obtainedby numerical results are in accordance with the results derived from experimental observations. The adopted technique cansubstantially can describe sufficiently the influence of the equivalents physical and mechanical parameters on the improvementin the soil of unit cell.},
	url = {https://doi.org/10.1007/s40996-022-00946-2},
	author = {Amal Mekaoussi, Toufik Karech, Abdelkader Noui}
}
