Study of Group of Stone Columns on Effect of Liquefiable Soil

Stone columns are widely recognized as a ground improvement technique, extensively employed to enhance the performance of foundations built on liquefiable soil containing layered soil profile. This paper presents design of stone columns based on software and analytical method. The main objective of the work is to compare the accuracy of the different models and find recommendations on which model can be used best in which situation. The comparison would be useful, since in the daily practice of geotechnical engineering a number of ambiguities arise as to which model is most suitable for a given situation. In support of the analysis, Settle3 and StoneC have been employed for consideration of the total settlement under varied surface loads on the effect of liquefaction. The failure mechanism is attributed to massive shear failure of the group and the surrounding soils. In the analysis, a square arrangement of stone columns has been adopted, and a parametric study has been undertaken to examine the effects of different foundation sizes and centre-to-centre (c/c) spacing while diameter of the stone column is considered constant for different foundation sizes. The findings reveal that increasing the foundation size and reducing the surface load reduces the settlement on account of mitigating the effect of liquefaction. This study provides valuable insights into optimizing stone column design for improved bearing capacity and reduced settlement ( https://doi.org/10.1007/978-981-96-7862-4_14 ).