Trabajo presentado en el VI Seminario Peruano de GeoingenieríaPor: M. Adriano, L. Esteban, Y. Huamaní, R. Romero, W. Vilcayauri, Universidad Nacional de Ingeniería.AbstractThe importance of a correct estimation of in situ stresses of a ground lies in the understanding of the stress state of the whole area in which a mining excavation will be carried out. The overcoring method is widely used for its effectiveness in measuring directly and in the field, the principal stresses, and subsequently finding the components of the stress tensor in situ. However, these measurements are generally used for a specific project and are not considered significantly afterwards. This paper is intended to encourage professionals involved in this field of study to develop linkages and correlations. Four major mines were considered in order to find a consistent correlation between their stress components and their depth. These were Andaychagua, Pallancata, Uchucchacua and Yauliyacu. Thus, it was found that between vertical stresses and depths there is a tendency to a linear behavior, with relatively high determination factors. This was theoretically expected. On the other hand, in the case of horizontal stresses on the x and y axes, there was no general behavior, apart from the fact that the scatter plot values were very scattered. The constant k seems to show a correct behavior based on depth. In general, it can be difficult to obtain an optimal correlation, but with more data and further mathematical and statistical analysis, an optimal and consistent pattern can be created that can be applied to more mines.
