ANCHOR Russian patent published in 2003 - IPC

FIELD: mining industry, specifically, fixing outline of mine workings with anchors. SUBSTANCE: given anchor includes load-bearing bar with screw at head end and tail part, with profiled surface in the form of recesses and ribs that is fixed in hole with the aid of cementing mineral composition or resin, supporting members and nut of tail part of anchor. Recesses and ribs of profiled surface are inclined from left to right towards mouth of hole with reference to longitudinal axis of bar and direction of helical line of screw of head part of anchor is opposite to direction of recesses and ribs of profiled surface of load-bearing bar of anchor. Supporting member of tail part of anchor can be made in the form of bolt head. EFFECT: increased strength of fixing and bearing capacity of anchor, raised quality of reinforcement of outline rock mass. 1 cl, 2 dwg