Influence of work systems and lost time in the calculation of equipment for open pit mining of the Antilla deposit, Apurímac

• Autores: Ortiz Sánchez, Oswaldo, Canchari Silverio, Godelia, Giraldo Paredez, Emiliano
• Formato: artículo
• Fecha de Publicación: 2011
• Institución: Universidad Nacional Mayor de San Marcos
• Repositorio: Revistas - Universidad Nacional Mayor de San Marcos
• Lenguaje: español
• OAI Identifier: oai:ojs.csi.unmsm:article/668
• Enlace del recurso: https://revistasinvestigacion.unmsm.edu.pe/index.php/iigeo/article/view/668
• Nivel de acceso: acceso abierto
• Materia: Performance parameters; ore reserves; alternatives; equipment; productivity; open pit operation; Parámetros de performance; reservas; alternativas; equipamiento; rendimiento; tajo a cielo abierto

The Antilla ore body open pit mining equipment is estimated for a total movement of 544 million metric tons of ore and waste in 20 years of active operation. Mining equipment is evaluated from the point of view of 3 working systems and time savings on the performance system. Three working alternatives are analyzed: Alternative 1 consists of three-8 hour shifts per day, six day per week operation. Alternative 2 includes three-8 hour shifts per day, 7 day per week and alternative 3 consists of four-six hour shifts per day 7 day per week work. Equipment size is chosen as a function of daily production, pit geometry, bench height, working angle and space requirements for safe operation of each equipment. Performance parameters used in equipment estimation were taken from 3 similar mining operations. Lost time analysis on the equipment performance were also considered in order to improve utilization of the 4 types of equipment required in the open pit operation.