REINFORCEMENT METHOD OF MINE WORKINGS WITH ANCHOR SUPPORT Russian patent published in 2011 - IPC E21D20/00 

FIELD: mining.

SUBSTANCE: reinforcement method of mine workings with anchor support involves drilling of bore pits into the roof to the bedding, installation of anchors into them with the part protruding into the mine working, mounting of support elements and tightening to the anchor protruding part. At that, the part of anchors, which protrudes from bore pits, is unbent so that a blunt angle is formed between protruding part of anchor and that part of anchor, which is located in the bore pit, and protruding part is located perpendicular to the bedding. Support elements are installed after unbending of protruding anchor part.

EFFECT: increasing carrying capacity of anchors under influence of vertical loads.

1 dwg