ABSTRACT
An effective way to strengthen shallow foundations is contour reinforcement - the execution of vertical elements in the soil base along the edges of the foundation. The introduction of reinforcement elements that perform the function of a “compression wall” leads to a noticeable decrease in deformations and an increase in the bearing capacity of the soil at the base of the reinforced foundations. As reinforcing elements, various structures and materials with strength properties that exceed the corresponding properties of the soil can be used.
To determine the rational parameters of the contour reinforcement with injection bodies, a set of numerical experiments was performed to calculate the stress-strain state of the soil foundation for different reinforcement schemes in the MIDAS GTS NX 2019 software package. The calculations were carried out in a 3D formulation, taking into account the nonlinear nature of the soil operation.
Based on the results of the calculation, the most effective schemes for the location of reinforcement elements were determined when strengthening shallow foundations with contour reinforcement with injection bodies, and the technology for consistent reinforcement work with a gradual increase in the number of reinforcement elements was substantiated.
