Evaluation of the holmberg and konya methodologies in the drill-and-blast mesh grumintor mine

Abstract

In the development of this research, the application of two drill and blast mesh methodologies Holmberg and Konya in the Grumintor mine of the Pinglio Minera Concession was analyzed, in order to estimate the replacement of the current drill and blast mesh used by the aforementioned company. It began with the field diagnosis of the mesh traditionally used, as well as the analysis of the equipment used; continuing with the study of the properties of the explosives to be used; In addition, the geological information survey of the rock was carried out to give a classification to the rocky massif, these data were processed and analyzed using computer programs managing different study variables in order to design the drilling and blasting meshes using the Holmberg methodology and the Konya methodology, and apply in the different exploration galleries. The drill and blast mesh commonly used in the mine for its exploration work are of three types and their choice is made according to the criteria, observation, and experience of the driller. The results of the application of the two methodologies will allow us to compare parameters and obtain conclusions about their applicability.