Methodology of coal losses calculation at open pit mining for complex geological conditions - review

At present, industry documents and methods of coal losses regulation take into account only mining in simple conditions: the coal seam has a constant incidence angle and thickness. However, there is no method of coal losses regulation in difficult conditions, in particular in mining coal seams in tectonically disturbed zones. For deposits having hard conditions of stratification, the creation of this technique is a very urgent task. This article proves the necessity for the creation of this document. Some results of calculating the coal losses at mining by backhoes in disjunctive dislocations areas are also given in this article. Technological schemes of coal seams mining in the areas of dislocations are proposed.