SECTIONAL LINING FOR UNDERGROUND WORKING Russian patent published in 1998 - IPC

FIELD: mining industry. SUBSTANCE: this can be used in construction of mine shafts and tunnels of various purpose in corrosive media. Sectional lining of underground working is made up of blocks produced with use of reinforced polymer-concrete with holes for injection of binding solutions beyond lining. Also used is dispersive reinforcement in the form of steel and/or synthetic fibres. In addition, provided are units for fastening blocks to each other, and locking members. Dispersive reinforcement made in the form of aforesaid fibres of various length occupies 4-25% of total mass of reinforced polymer-concrete. Description of invention presents different versions of lining embodiment, possible dimensions and ratios of fibres, different design variations of locking members and their fastening units, reinforcement and sealing articles. Also permissible is additional introduction of metallurgical production process waste. EFFECT: higher efficiency. 27 cl, 46 dwg