The existing buildings with retaining structures

The object of the research is the retaining wall behavior under conditions of complex topography and dense development of existing buildings. The influence of retaining wall construction on the stress-strain state of the existing structures is also investigated. This work aims to evaluate the impact of soil cutting and constructing a retaining wall adjacent to the existing building. This research is of great importance as there is a lack of knowledge of appropriate structural solutions for earth-retaining structures considering landslide protection measures and distance between structures. Method. Numerical calculations were performed in the Plaxis 3D software program for three-dimensional calculations of the deformation and stability of spatial construction objects and the soil base. The work was divided into three stages: 1) building construction, 2) arrangement of landslide control measures, and 3) excavation for new construction. At each stage, changes in the forces occurring in the foundation slab, columns, and perimeter beams were analyzed. A comparative analysis with the previous stage was carried out. Results. The impact of the newly erected retaining wall on the structures of the existing buildings was calculated. Changes in displacements of slab foundation, transverse, and longitudinal forces, as well as bending moment in building structures depending on the height and distance of adjacent structures, were determined. Recommendations for making optimal design decisions that help minimize the negative impact on the existing structures are given.