APPLICATION OF SMALL SELF-PROPELLED DRILL RIGS

Abstract

Small-diameter drilling is used in many civil and mining engineering areas. In the past, it was mainly done with hand-held hammer drills. Still, the need for safer and more efficient work has led to the development of small self-propelled drilling machines that require fewer workers for the same capacity and provide significantly safer work.

Drilling small-diameter boreholes is used for some special blasting methods (blasting in urban areas, secondary blasting of boulders, etc.), to make boreholes during the exploitation of decorative stone blocks, to place anchors in slope stabilization, to mine underground, to apply expansive mixtures for the disintegration of solid masses (stone, concrete), to make protective screens, to tunnel, etc.

Several manufacturers manufacture small self-propelled drill rigs, all of which are equipped with remote controls. Thus, the operator is not forced to stand in potentially unsafe places compared to someone working with a hand-held hammer drill. The paper will present the possibilities and methods of applying these drill machines to different working conditions.