Shlapak V. Management of efficiency of drilling operations in the extraction of dimension stone

Dissertation is devoted to development of methods of assessing the impact of natural and technological factors on the drilling efficiency in the extraction of ornamental stone. In the paper and set the factors leading to a distortion of the drill holes in fractured massifs block structure. A model of the process of drilling holes in the array of cases for intersection with a series of horizontal and sub-horizontal fractures, which describes the geometry of the bending axis of the drill holes. To perform the study was designed inclinometer measuring device and quality control method of drilling holes in the rock formations. The effect of the curvature of the axis of the drill holes from the given directions for the next stage and operations. A method for planning mining operations, which takes into account the spatial distribution of horizontal and sub-horizontal fractures in the array.