Numerical Study on Bearing Capacity and Bulging of the Composite Stone Column

Background: In weak clay soil, a proper ground improvement technique using stone column can be limited by the absence of sufficient lateral confining pressure. Stone columns should strengthened to provide minimum required Objective: The aim this study is find out significant composite compared conventional comparing bearing capacity enhancement and treated soil stiffness for both models. Composite with solid concrete part at top-head not only enhance but also decrease bulging failure increase surrounding stiffness. Methods: 2D finite element analyses were carried simulate an experimental conducted Ambily Gandhi on columns. ABAQUS software program Mohr-Coulomb criterion soft stones was used in simulation. First, preliminary numerical model created experiment model. Similar material properties, boundary conditions, constraints considered results compared, they similar results. During process, efficiency confirmed. Second, same performed without modifying parameters that influence as length part, stress concentration ratio, shear strength all studied. Results: data obtained from aforesaid along package. Compared existing work, our approach achieves correlation, it indicates increases stiffness, addition increasing column. resists deformation moving downward where pressure larger. ratio part. Conclusion: have under superstructures. Furthermore, around magnitude greater than Therefore, are more efficient effective