CHAMBER METHOD OF MINING HEAVY, VALUABLE, COMMINUTED ORE DEPOSITS Russian patent published in 2014 - IPC E21C41/22 E21D11/10 

FIELD: mining.

SUBSTANCE: invention relates to the mining industry and can be used when mining comminuted ore deposits, including heavy and rich, overlain with soft mantle rocks. The chamber method of mining the heavy, valuable, comminuted ore deposits comprises sectoral mining of ore, followed by the formation of a hollow chamber in the form of a hexagonal prism. A dome preventing overhead caving is formed preliminary in over-ore rock mass of overlying rocks over cellular chamber. Under the dome in each section the chamber walls are formed. The timbering is created for the walls of hollow chambers followed by backfilling of concrete in it, successively from top to bottom to the entire depth of the ore body in each sector. The adjacent chambers are made in a similar manner to the formed chamber adjacent to it to form a unitary chamber cell structure. The chambers are connected by passages for easy operation.

EFFECT: invention enables to provide formation of vertical cell chambers with their subsequent use as an underground storage facility or premises for metallurgical production processes, reduction of costs for mining ore deposits.

2 cl, 6 dwg