Regularities of The Deposit Shearing Process in The Cave-In Zone of The Annenskaya Mine of The East Zhezkazgan Mine

The article considers the peculiarities of manifestation of the character of the shear process in the conditions of the collapsed zone of the Annenskaya mine of the East-Zhezkazgan mine. The questions of replenishment of retired capacities are considered, where it is supposed at the expense of working out of reserves from pillars by re-mining from the open excavated space, and also pillars and remaining reserves by field methods of excavation in conditions of mass caving. The mining and geological conditions of the flank parts of the deposit and the areas near the mass cave-ins differ significantly from the central ore field. In this connection, we propose a chamber and pillar system with a change in the technology of reserve mining at the Annensky site and with the re-mining of the remaining reserves in pillars of various purposes. The problem has arisen, the complexity of the solution of which lies in the absence of generally accepted methodological bases of management of accompanying geomechanical processes required for designing of reserves development in the above mentioned specific conditions and ensuring safety of mining operations, which has caused the necessity of carrying out research works in this direction.