Desenvolvimento de um aplicativo para cálculo de parâmetros de plano de fogo e previsão da fragmentação através do modelo Kuz-Ram em desmonte de rochas para lavra a céu aberto por bancadas

Abstract

Rock blasting using explosives is the mining operation responsible for fragmenting the rock mass into smaller particle sizes for subsequent loading, transport, and mineral processing, directly influencing productivity, safety, and operational costs. Executing a blasting plan safely and efficiently requires adequate planning, based on a detailed analysis of its geometric parameters, quantity, and type of explosives. In addition to these aspects, another factor considered is the fragmentation resulting from the blasting. Therefore, predicting the generated fragmentation is fundamental, as it allows for estimating the particle size distribution in order to reduce crushing and transport costs. Given the above, the objective of this research is to develop an application in Python, using the Anaconda software package and a code editor Visual Studio Code, to calculate the blasting plan parameters for the bench mining method in open-pit mining and simulate fragmentation using the Kuz-Ram model. Therefore, this research aims to present the geometric parameters of a blasting plan, apply the Kuz-Ram model for fragmentation calculation, and develop a computer application capable of simulating different scenarios, resulting in parameter values and the generation of the fragmentation curve. It is estimated that the development of the application will serve as an example of the practical application of combining programming and engineering concepts, and as an application for academic purposes.