Valores comparativos de spt en suelos blandos aplicando Metodos de Terzaghi y Meyerhod

Abstract

The design and construction of a civil engineering work demands a precise structural calculation and a previous geotechnical study. The load capacity is characteristic of the soil on which one is implanted, not just its quality. Soils differ in their load capacity according to their composition, however, it happens that in a specific soil this capacity varies according to the type, shape, size and depth of the foundation that is loaded on it, capacity can be determined through a theory based on a failure mechanism and a sustained stress, qu in terms of soil shear strength and the geometry of the problem. Terzaghi's theory considers continuous, square and circular foundations except for rectangular ones, it does not take into account the shear resistance in the area of failure in the soil nor the inclination of the acting load; Meyerhof's theory takes into consideration all these factors, raises the equation based on these deficiencies, this formula is called the general load capacity equation. In this practical work, the theories of bearing capacity in soft soils will be applied, Terzaghi and Meyerhof, conceptualizing them and defining the formulas for their calculation. The SPT values of an existing soft soil will be taken, whose results have been obtained in laboratory tests, and then the equations of the aforementioned theories will be used in calculations whose results will be evaluated in a comparative manner in order to know the differences between both theories.