Explotación de caliza a cielo abierto de la concesión minera "Gretha Piedad"

Abstract

This research aims to evaluate the limestone deposit, called Gretha Piedad belonging to the National Unión Cement, UCEM CEM use the method of exploitation by open pit descending bank to the development of Portland cement, located in the province of Morona Santiago Mendez canton Yucal sector. Consisting of two parts, calculation of reserves, of the study block and its design of exploitation of limestone for banks falling by starting operations, loading and transport of the exploitation of limestone deposit through proper sizing of the machinery. This project has a mine planning for 5 years with a plan for long/ term exploitation of the reserves of the quarry, were designed 13 operating levels with a height of meters each. Applied in the calculation of reserves by running geological profiles, the mineralized area, bythe method of isolines, with a southwest-northeast direction (A-A’, B-B’, C-C’, D-D’ profiles) and northwest-southeast (E-E’, F-F’, G-G’, H-H’ profiles) for achieving greater length, would permit greater viewing geometry limestone block, confirming proved reserves, 52’565.108,2 tons of limestone, which required a calculation of explosives required for, exploitation of limestone. It is concluded that the production of the quarry will be 21,818.2 tons/ month; costing operating profit one ton is 4.43 U.S. dollars/ton. Recommending perform a selective operation with the installation of a laboratory performing sampling and chemical analysis in each bank to be drilled for optimum limestone production, to avoid dilution of mineral.