Mechanization of blast hole drilling at exploratory excavations
Abstract
Manual labor in the production of exploration and engineering-geological research still occupies a large place. Among these works, manual drilling of boreholes in the exploration workings is of no small importance. Labor productivity in manual drilling is low. For example, for sinking a borehole depth of 1.5 meters and a diameter of 35 mm in rocks of medium strength, 3.14 man-hours are spent. The use of existing mechanisms for borehole drilling in exploratory excavations in some cases is impossible due to the lack of energy sources. Large volume, labor intensity and high cost of manual drilling urgently require mechanization of this process.
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