MONOLITHIC REINFORCED CONCRETE LINING OF A VERTICAL RECTANGULAR MINE SHAFT Russian patent published in 2022 - IPC E21D5/04 

FIELD: mining.

SUBSTANCE: invention relates to mining, namely the construction of a rectangular mine shaft under conditions of high rock pressure. A monolithic reinforced concrete lining of a vertical rectangular mine shaft includes a concrete body, vertical rod bars, horizontal rod bars of steel reinforcement and reinforced transverse brackets with a step corresponding to the calculated reinforcement step. At the same time, vertical rod bars, horizontal rod bars of steel reinforcement and reinforced transverse brackets of the support frame of a rectangular mine shaft are made with an ellipsoidal cross-section, the long axis of the reinforcement ellipse is aligned with the maximum loads on the reinforced concrete lining of a rectangular mine shaft, for vertical and horizontal reinforcement, the maximum moment of resistance along the long axis of the ellipse is aligned with the perpendicular to the side surface of the shaft; for reinforced transverse brackets, the maximum moment of resistance along the long axis of the ellipse is set parallel to the vertical axis of the shaft; the long axis of the ellipse is aligned along the connecting line between the corners in the draft and in the cleanliness of the shaft.

EFFECT: increasing the reliability of monolithic reinforced concrete lining of a rectangular mine shaft.

1 cl, 5 dwg