Barrette is a vital solution to minimize soil displacement problems of massive structures due to its high axial and lateral load capacities. The traditional methods for analyzing barrettes are mainly modeling the barrette and surrounding soil using three-dimensional finite elements. These methods require a huge-computational effort. In this thesis, a numerical hybrid technique is developed for analyzing laterally loaded barrettes and barrette groups. In this technique, the flexibility coefficient is used to determine the soil deformation based on Mindlin’s solution considering the full interaction between barrettes and surrounding soil. Also, it takes into consideration the group interaction of every single barrette on the group of barrettes. On the other hand, the barrette in the vertical direction is discretized to one-dimensional finite elements. The soil stiffness along the barrette surface is reduced by the Composed Coefficient Technique (CCT) to be one-dimensional along the barrette vertical axis having variable displacements along the barrette height. This technique enables adding the soil stiffness to the barrette stiffness matrix generating the full stiffness matrix of the single barrettes/barrette groups to be solved. As a result, the number of equations is reduced. Besides the soil nonlinearity using the hyperbolic function is considered. A series of validations are carried out to verify the hybrid technique. In addition, a comparative study of laterally loaded single barrettes in a real-subsoil is carried out, in which east Port-Said soil properties are considered. Also, parametric studies are carried out to investigate the behavior of laterally loaded barrette/barrette groups. The study presents guidelines for analyzing laterally loaded single barrettes and barrette groups.