Influência da Utilização de Solo-Cimento na Capacidade de Carga de Fundações Superficiais

: In geotechnical engineering, the correct determination of the bearing capacity of foundations and consequently their dimensioning, constitute an essential step for the elaboration of an assertive and safe project. Therefore, in the case of shallow foundations, it may be necessary to realize the improvement of the soil on which it will be based to make the project technically feasible. In this sense, this work aims to present the variation of the bearing capacity of a square footing of 2.00 m on a side, based on different proportions of soil-cement, by the methods of Terzaghi (1943), Meyerhof (1955), Hansen (1970) and Vesic (1975), which are widely consolidated in the literature. For this purpose, static triaxial compression tests were performed on samples composed of improved sand with cement contents of 2%, 5% and 10%, in which their respective cohesion and angle of internal friction were determined. It was concluded that even for low levels of cement, the gain in load capacity is considerable, which may enable the execution of this type of foundation in places where the soil resistance is low, or, decrease the footing dimensions, depending on the case. It is recommended to realize studies using reduced models to verify the behavior of these foundations.