The greatest development in mining countries over the last 30 years has been the development systems with self-detonation of ore. The analysis of the largest and most successful mining companies shows that the systems with self-detonation are now the cheapest and most productive mining systems, which is especially relevant today.
This article discusses the experience and conditions of the application of storey and sub-storey self-detonation systems used in mining enterprises. The Koffiefontein mine is the first diamond mine in the world to use a floor self-detonation аsystem with a front-end ore outlet. The advantages of using this system at the Coffifontein mine are: stage-by-stage production capabilities; smaller volume of preparatory rifling work; low drilling and blasting costs. The system of sub-storey self-detonation was developed and tested in 1952 at the Tsentralnaya mine of the Ingulets mine in soft ores at a level of 260 m.
Tests of sub-storey self-detonation in ores of medium strength were carried out at the Kommunar-Pobeda mine named after Dzerzhinsky and the Novaya mine named after K. Liebnecht. The use of sub-storey caving with an end outlet makes it possible to achieve high technical and economic indicators for production under continuously increasing mining and geological conditions.