WALKING MINE SHELF Russian patent published in 2023 - IPC E21D5/12 E21D5/10 E21D1/08 

FIELD: mining.

SUBSTANCE: equipment for the construction of mine shafts. The walking mine shelf includes a multi-story shelf structure and a walking mechanism. The walking mechanism consists of at least two vertical jacks, evenly spaced relative to the shaft axis, connected to the floors of the shelf, and at least two support elements on each floor, evenly spaced relative to the shaft axis, located on at least two floors of the shelf. The supporting elements of the walking mechanism are hingedly attached to the floors of the shelf. Each supporting element is made in the form of an arm with a protrusion towards the shaft wall. The dimensions and shape of the protrusion allow it to be placed between the ribs of the tubing in any position of the arm, accessible during rotation using a hinge joint. In the lower part of the protrusion there is a U-shaped base, and the distance between the inner sides of the ribs of the U-shaped base of the arm is greater than the largest width of the fastening element. The thickness of the rib of the U-shaped base of the arm closest to the shaft wall is less than the smallest width between the tubing wall and the fastening elements. The length of the ribs of the U-shaped base of the arm is greater than the largest chord between adjacent fasteners within a single arrangement group.

EFFECT: increasing the safety of work during the construction of a mine shaft with tubing support.

1 cl, 12 dwg