The purpose of this master's thesis is to explore possibilities for improving fragmentation in the extraction of mineral resources using the drilling and blasting method. The focus is on finding solutions for more efficient execution of processes and reducing environmental impacts. The analysis was based on a comparison between theoretical fragmentation predictions obtained using the Kuz-Ram model and actual results recorded with the BMX Fragmenter software. Electronic detonators were also used, allowing precise timing of blast delays, which contributes to reduced vibrations and more uniform fragmentation of the material.
In the experimental work, for theoretical predictions, we used the Kuz-Ram model, and for monitoring actual results, we applied digital analysis using the BMX Fragmenter software. Several blasting operations were carried out under different geological conditions using a combination of explosives, such as ANFO E0, Emulex 1, and Emulex 2. The focus was on the impact of electronic detonators on the accuracy and efficiency of blasting, as well as their role in optimizing blasting procedures.
The results of the master's thesis showed that with the correct selection of blasting parameters, such as the arrangement of blast holes and detonation timing intervals the fragmentation of the rock can be significantly improved.Digital analysis with BMX Fragmenter confirmed the accuracy of Kuz-Ram model predictions and enabled the optimization of blasting procedures, leading to reduced vibrations and improved fragmentation accuracy.
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