MINE WORKING LINING METHOD Russian patent published in 2011 - IPC E21D11/00 

FIELD: mining.

SUBSTANCE: mine working lining method involves extension of beams from the area fixed with constant permanent lining to the working face of development opening, and working platform and decking is laid on them, and method also involves permanent lining. At that, in fixed part of the opening the pneumocylinder is laid on decking, and roof beams of permanent lining are laid on it with tightening, beams with decking, working platform, pneumocylinder, roof beams and tightening are extended to working face; compressed air is supplied to pneumocylinder, roof beams with tightening are lifted to the level of roof beams of permanent lining, tightening is lead to permanent lining, strut is made between roof beams of lining and roof of the opening by supplying compressed air to pneumocylinder. Then, to roof beams of the lining there attached are supports; after that, pneumocylinders are unloaded and beams with working platform, decking and pneumocylinder is moved to the fixed area of the opening, and after the mining face has been shifted for a cycle, operations are repeated.

EFFECT: increasing efficiency and safety of lining of development openings.

4 dwg