IMPROVING THE EFFICIENCY OF MINING COAL SEAMS WITH COMPLEX MINING CONDITIONS
When excavating coal seams with difficult mining conditions, treatment complexes with protective and supporting supports do not always ensure the reliability of the interaction of the support with the roof, which reduces the productivity and safety of work. Technical solutions to improve the efficiency of roof management and operation of the complex by creating a multifunctional hydraulic of the support are proposed and investigated. The results of theoretical research, experimental bench and mine tests hydraulic of the support in modes that provide the required value of the initial support stand, protection from dynamic manifes- tations, and diagnostics of the technical condition are presented.