Índice de carga puntual y su relación con dimensiones en bloque regular de roca

Abstract

The objective of this work was to evaluate the point load test index, known as Is (50), of rock material or simply rock, depending on the dimensions of the specimens that were developed and subjected to the test. It began with the taking of samples of the same material, which comes from a single outcrop and is composed of amphibole andesite. The outcrop is in a sector called Cojitambo, in the province of Cañar in Ecuador. In a second instance, test tubes were elaborated until obtaining ninety, which were in ideal conditions for the test, and divided into three groups of thirty, called P5, P7, and P9. The dimensions of the specimens were approximately 10x10x5 cm, 10x10x7 cm, and 10x10x9 cm, respectively. As a third stage, the precise dimensions of the specimens were taken and evaluated, as they were subjected to the point load test. The results are interesting since they show different behavior for each group of test tubes, raising some questions while the point load test index of the rock can be objectively assessed. The obtained conclusions should be taken into consideration.