Supporting and anchoring mining foot for stabilization of the longwall lining rough arch made from channel shapes

摘要

the stability of ociosowego (1) is a ceownika podporowego (2), in which one side is fixed perpendicular rectangular sheet oporowa (3) with two holes arranged symmetrically to the mounting bolts hakowych (4) and diagonally, at an angle close to 45, tin po orowa (5) with a hole in the axis of symmetry to the mounting kotwi (6),combined with ceownikiem podporowym (2) and a rectangular plate oporowu0105 (3) and, on the other hand, perpendicular pu0142askownik centruju0105cy (7). the parameters (a, b and c) pu0142askownika location hole (7) are adapted to the size of the smallest of the dilated arms typoszeregu profiles korytkowych.