Mejora de la malla de perforación para la reducción del costo unitario de sostenimiento en la Rampa 7595 Poderosa.
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Date
2024-09
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Publisher
Universidad Nacional de Trujillo
Abstract
La investigación tuvo como objetivo principal mejorar de la malla de perforación para
reducir el costo unitario de sostenimiento en la rampa 7595 Santa María CM. Poderosa. Se
identificaron 5 actividades, corresponden al 91.31% de defectos que contribuyen al deterioro de
la malla. Así mismo, se realizó el análisis de la malla de perforación existente y se optimizó
según la clasificación RMR de cada frente. Entre los resultados obtenidos se tiene el diseño de la
nueva malla, se proyectó una perforación con Jumbo y longitudes efectivas de la perforación de
3.1 metros y se identificaron 2 frentes típicos: RMR de 61 a 80 y RMR de 41 a 60.
La metodología utilizada fue el diseño no experimental de la cual no involucra ser
manipulada su variable independiente con el fin de producir un efecto sobre la variable
dependiente. La población está conformada por todas las labores de la unidad minera Santa
María del Nivel 2910 y la muestra es la Rampa 7595.
Finalmente, como conclusiones se obtuvo que en el comparativo del avance lineal
promedio por disparo entre las voladuras utilizando la malla antigua y la nueva malla,
evidenciando una mejora de 0.4 metros entre ambas mallas, disminuyendo la cantidad
kilogramos de explosivo utilizado y por consiguiente la disminución del factor de carga lineal y
el factor de potencia de la voladura, aumentando la eficiencia DE 80% hasta un 92%. Además, se
obtuvo una reducción de 9.72 S/ m2 en el costo unitario
The main objective of the research was to improve the drilling mesh to reduce the unitary cost of support on ramp 7595 Santa María CM. Poderosa. 5 activities were identified, corresponding to 91.31% of defects that contribute to the deterioration of the mesh. Likewise, the analysis of the existing drilling mesh was carried out and optimized according to the RMR classification of each front. Among the results obtained is the design of the new mesh, a perforation with Jumbo and effective lengths of the perforation of 3.1 meters were projected and 2 typical fronts were identified: RMR from 61 to 80 and RMR from 51 to 60. The methodology used was the non-experimental design of which does not involve manipulating its independent variable in order to produce an effect on the dependent variable. The population is made up of all the work of the Santa María mining unit of Level 2910 and the sample is Ramp 7595. Finally, as conclusions it was obtained that in the comparison of the average linear advance per shot between the blasts using the old mesh and the new mesh, showing an improvement of 0.4 meters between both meshes, decreasing the number of kilograms of explosive used and consequently the decrease of the linear charge factor and the power factor of the blast, increasing the efficiency up to 92%. In addition, a reduction of 9.72 S/ m2 in the unit cost was obtained
The main objective of the research was to improve the drilling mesh to reduce the unitary cost of support on ramp 7595 Santa María CM. Poderosa. 5 activities were identified, corresponding to 91.31% of defects that contribute to the deterioration of the mesh. Likewise, the analysis of the existing drilling mesh was carried out and optimized according to the RMR classification of each front. Among the results obtained is the design of the new mesh, a perforation with Jumbo and effective lengths of the perforation of 3.1 meters were projected and 2 typical fronts were identified: RMR from 61 to 80 and RMR from 51 to 60. The methodology used was the non-experimental design of which does not involve manipulating its independent variable in order to produce an effect on the dependent variable. The population is made up of all the work of the Santa María mining unit of Level 2910 and the sample is Ramp 7595. Finally, as conclusions it was obtained that in the comparison of the average linear advance per shot between the blasts using the old mesh and the new mesh, showing an improvement of 0.4 meters between both meshes, decreasing the number of kilograms of explosive used and consequently the decrease of the linear charge factor and the power factor of the blast, increasing the efficiency up to 92%. In addition, a reduction of 9.72 S/ m2 in the unit cost was obtained
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TECHNOLOGY::Civil engineering and architecture