AUSTRALIAN SURVEY STUDY:
Down-hole surveys were conducted across 17 Australian underground hard rock operations. The results have been analysed to better understand typical drilling accuracy and the factors that result in blast-hole deviation. The data was further broken down by drill type (Boom and Horseshoe).
In this case study, we will be focusing on the results of the Boom drill rigs.
Ryan Stimpson, Head of Engineering, Minnovare: “Average deviation at the toe across all 13 sites using the ‘Boom’ type drill was 6.2% (1.0m over a 15.4m hole).
56% of the error at the toe was due to alignment error – indicating current drill setup processes are not only inaccurate, they are also highly inconsistent (3.3% Standard Dev.)”
Download the Boom survey study below, and contact us for more info: