Optimización en los parámetros de perforación y voladura en el avance del túnel del área minera el Cebral R-Nivel

Abstract

Abstract: The present research work is aimed at optimizing the drilling and blasting parameters in the advance of the tunnel of the mining area the Cebral R-level, by means of the design of the drilling and blasting meshes through a specific consumption coefficient for explosive substance based ongeomechanical classifications. Once the proposed methodologyhas been applied, First, based on an RMR classification of 56 (class III, medium quality), a specific consumption coefficient value for explosive substances was obtained. (CE) of 0.26 Kg / m3, which allowed to obtain at the same time a corrected rock constant (ĉ) of 0.23 kg / m3, the same that was used in the calculation of the burden of the drag holes, gables and shreds in the new perforation mesh design through which 28 distributed holes must be drilled with a burden and spacing defined in this work.