An Alternative Approach to Burden Estimation Based on Targeted Mean Fragment Size Using Rock Fragmentation Models

Authors : Özgür Yılmaz

Pages : 36-43

View : 31 | Download : 29

Publication Date : 2024-11-25

Article Type : Research Paper

Abstract :In the mining industry, bench blasting efficiency is determined by rock fragmentation. Therefore, it is crucial to predict the result of rock fragmentation before blasting. It is widely accepted that empirical fragmentation models like Kuz-Ram and Chung and Katsabanis (C&K) are the most reliable tools for predicting the size distribution of rock fragments following blasting. The main aim of this study is to provide an approach to estimating the optimal burden according to the intended mean fragment size using rock fragmentation models. It is necessary to determine or know the rock factor used in the mentioned models in attempting to apply the method proposed in this study. Initially, studies were conducted to determine the most appropriate burden according to the intended mean fragment for a quarry where the rock factor is known. After this, simplified equations were derived for the optimal burden depending on the rock factor, the intended mean fragment size, the bench height and the density of the explosive.
Keywords : Yük mesafesi, parçalanma boyutu, kuz ram modeli, kaya faktörü