METHOD FOR FASTENING AN INCLINED MINE WORKING WITH MONOLITHIC REINFORCED CONCRETE Russian patent published in 2022 - IPC E21D11/04 

FIELD: mining.

SUBSTANCE: invention relates to mining, namely the construction of inclined mine workings under conditions of high rock pressure. The method comprises forming a concrete body with a frame of reinforcing bars, wherein the reinforcing bars along the inclined working, the reinforcing bars across the base of the inclined working, the reinforcing bars perpendicular to the base of the inclined working, and the steel reinforcement along the arc of the roof of the inclined working, the reinforced transverse brackets are installed with a cross section elliptical shape, the long axis of the reinforcement ellipse is combined with the maximum loads on the reinforced concrete lining of the inclined working. For reinforcing bars along an inclined working, the long axis of the reinforcement ellipse with the maximum moment of resistance is set perpendicular to the side surface and the base of the working, and is also aligned with the radius of the circle segment of the roof of the inclined mine working, respectively. For reinforcing bars across the base and perpendicular to the base of the inclined mine working, the long axis of the reinforcement ellipse with the maximum moment of resistance is set perpendicular to the base and to the side surface of the inclined mine working, respectively. For steel reinforcement installed along the arch of the arch in the form of a circle segment of an inclined mine working, the long axis of the reinforcement ellipse with the maximum modulus of resistance is set along the radius of the circle segment of the corresponding frame row. For reinforcing bars along an inclined working, installed at the corners of the base and side surface, the long axis of the reinforcement ellipse with the maximum moment of resistance is set diagonally between the corresponding perpendiculars to these surfaces. For reinforced transverse brackets installed on reinforcing bars in the frame across the base of the inclined working, perpendicular to the base of the inclined working, and steel reinforcement along the arc of the roof of the inclined working, the long axis of the reinforcement ellipse with the maximum moment of resistance is set parallel to the line of the angle of the mine working. For reinforced transverse brackets mounted on reinforcing bars along an inclined working, the long axis of the reinforcement ellipse with a maximum moment of resistance is set parallel to the trace of the plane drawn through this bracket, on the side surface and the base of the inclined working, and also parallel to the tangent at the point where the radius exits to the reinforcement arc, according to their location.

EFFECT: increasing the reliability of monolithic reinforced concrete lining of inclined mine workings.

1 cl, 6 dwg, 1 tbl