CANADIAN SURVEY STUDY:
Down-hole surveys were conducted across 10 Canadian underground hard rock operations. The results have been analyzed 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, Horse-Shoe, Buggy, Cubex).
In this case study, we will be focusing on the results from the Horse-Shoe drill rigs.
Ryan Stimpson, Head of Engineering, Minnovare:“Average deviation at the toe across the site using the ‘Horse-Shoe’ type drill was 7.4% (2.6ft over a 36ft hole).
55% of the error at the toe was due to alignment error – indicating current drill setup process are not only inaccurate, they are also highly inconsistent (3.0% Standard Dev.)”
Download the Horse-Shoe survey study below, and contact us for more info: