METHOD FOR SHIELD DRIVING OF TUNNEL Russian patent published in 2010 - IPC E21D9/06 E21D11/00 

FIELD: mining.

SUBSTANCE: invention is related to mining industry, in particular to shield driving of tunnels, and may be used in shield driving of through collector tunnels with concrete lining. Method for shield driving of tunnel consists in erection of shield chambers by method of "slurry-type wall" for assembly and turns of shield on track of arranged tunnel. Walls of shield chambers, at least those, where holes are provided for passage of shield, are made of concrete, having compression strength of not more than 11.5-14.5 MPa, are reinforced with glass-plastic reinforcement from rods with diametre from 4 to 10 mm with ultimate strength in case of cutting across fibres of at least 165 MPa and developed by working element of shield. Formation of concrete lining, in process of collector tunnel driving, at least in joint of shield chambers walls and on length of tunnel from two to ten of its diametres, is carried out by at least two concentric layers, between which additional internal hydraulic insulation layer is arranged, and application of hydraulic insulation coating onto inner surface of concrete lining is carried out after complete drying of surface layer of tunnel walls.

EFFECT: improved reliability of tunnel arrangement and its hydraulic insulation, higher speed of underground communications construction.

2 cl