Diseño de esplotación de caliza a cielo abierto en la concesión minera "Amazonas"

Abstract

The following investigation proposes: to conduct a suitable development design according to the technical, mining and economic factors of the mining company Amazonas For the extraction of limestone, which is necessary for the production of cement in Napo province, Tena town, parish Puerto Misahuallí, community of Ponceloma. Using the method of opencast development by means of Descending Benches; it consists of two parts: the calculation of reservations of the area of study and the design of development of the deposit of limestone. We have designed 8 banks of exploitation with a height of 10 meters each one by applying the reserve calculations using the geological profiling of the body mineral, thus obtaining three geological profiles ( A - A', B - B' , C - C ') These profiles will help to determine the geometry of the block of limestone, getting sorne proven reserves of 33'220.287,03 tons of limestone. It is concluded that the monthly production of the mine will be of 1,700 tons, with a cost-benefit of exploitation of 4.25 dollars/ton. The time of useful life of the mine is the result of the calculation of reservations divided between the rhythm of required annual production, the obtained result showed a nearby number at the age of 84. It is recommended to perform a selective explotation with the aim of increasing the content of calcium carbonate and reduce the value of silica.