Control of soil deformation during deep excavation in crowded metropolitan environment is essential to ensure safety of existing neighboring structures and infrastructures. The Literature study of deep excavations based upon numerical modeling addresses the effect of corner by 2D and 3D FEM formulation. 3D FEM models give realistic field conditions to accurately represent the soil response. Along with numerical analyses, the physical modeling is a significant part of geotechnical engineering which can be used to simulate three-dimensional field conditions. By adopting the physical modeling using geotechnical centrifuge, this paper aims to explore the effects of deep excavations with diaphragm wall in cohesionless soil. The centrifuge experiments are designed to simulate plain-strain condition and 3D behavior. A series of centrifuge tests will be carried out for loose sand, medium dense sand, and dense sand profiles at varying depth of excavation ranging from 1 to 5 m. The probable outcomes of these experiments will be recorded in terms of horizontal displacement of diaphragm wall and settlement profiles of the soil behind it caused by an adjacent deep excavation.