Desmonte de rocha na Mina do Sossego

Abstract

The present work describes the execution of the activities of it rock blasting with explosives in the dependences of the mine of the peace, located in the municipal district of Canaan of Carajás, in the state of Pará. Firstly we presented a bibliographical revision of the main topics that you/they interest to the it blasting of rock, among them, the properties of the explosives and also, the properties mechanical of the solid rocky. Soon afterwards, we passed to the description of the it dismounts accomplished at the mine, from the determination of the polygon for perforation and dismount until the evaluation of the same. For that, among other things we made the attendance of the stages, activities and parameters used for the execution of the it dismounts. Appearing in this description, the changes happened in search of the optimization of this unitary operation, the possible committed mistakes and or faced problems, as for instance, the existence of benches quite fractured due to the vibrations caused by the shock waves in the mine. With such description, he/she opens up precedents for future works, that you/they come to contribute to improve the quality of the fragmentation and with that to reduce the total cost of the mine.