Comparación de los tiempos de consolidación t50, t90 y coeficiente de consolidación Cv, obtenidos por los métodos de Casagrande y Taylor en relación con los medidos por la disipación de la presión de poros.

Abstract

One of the most important aspects to be taken into account in all the civil engineering projects is the good foundation design, which starts from the study of the behavior of the soil where a structure will be implanted, in such a way it is necessary to determine the deformations suffered by the soil as a function of time under the application of an increased load, this phenomenon is known as consolidation. In this paper, a comparative analysis is presented between the time in which the fifty and ninety percent consolidation occurs by the Taylor method and those obtained by the measurement of the pore pressure dissipation, and from these determine the consolidation coefficient Cv with the objective of establishing a new calculation methodology, based on the dissipation of the pore pressure. Regarding the Casagrande method, an atypical behavior was observed in the plot settlement versus time in most of the samples analyzed, so it will not be included in this study. To this end, unaltered samples of soil were extracted from the city of Quito and Lago Agrio, using the consolidation machine (Hydrocon) under BS 1377-6. After the tests carried out, a high compatibility was established between the proposed method and the Taylor method.