Tytuł artykułuBlast Fragmentation Classification Using Number-Size (N-S) Fractal Modelin Jalal-Abad Iron Mine
Tytuł czasopismaArchives of Mining Sciences
Słowa kluczoweblasting ; Fragmentation ; Number-Size (N-S) fractal model ; Jalal-Abad iron mine
Wydział PANNauki o Ziemi
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One of the main purpose of accurate blasting in open pit mining is to achieve optimum rock fragmentation.
The degree of rock fragmentation plays a significant role in order to control and minimise the
overall production cost including loading, hauling and crushing. In the present paper, the application of
a Number-Size (N-S) fractal model is intended to classify the blast fragmentation size in the Jalal-Abad
iron mine, SW Iran, using GoldSize image analysis software for four blasting with the obtained result
being compared with Kuz-Ram curves. To do this, the fractal dimensions via N-S log-log plots were
generated based on the output of the GoldSize software. The results indicated that the fragmented rocks
have a multifractal nature with four/five different fragmented populations in terms of size namely; the fine
rocks with the size of less than 16 cm, Mean-fragment values between 16 and 45 cm, In-range between
45 and 70 cm and finally, oversize larger than 70 cm.
WydawcaCommittee of Mining PAS
TypArtykuły / Articles