MINE WORKING REINFORCING METHOD AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2014 - IPC E21D11/00 E21D19/00 

FIELD: mining.

SUBSTANCE: mine working reinforcing method consists in fixation of anchors on the mine working arch and installation on them of a protection mesh material. Devices, each of which represents a two-arm lever, the arms of which form a blunt angle in the working position, are suspended on a row of anchors fixed on the mine working arch. One arm of each lever is turned about a suspension point, thus pressing the protection mesh material with the other arm to the mine working arch; after that, anchors are fixed under the protected section of the mine working arch. The mine working reinforcing device includes a tie-rod, on the end of which there is a member for suspension to an anchor fixed on the mine working arch, a pair of thrust pins movably connected to the same end of the tie-rod with possibility of being fixed relative to the tie-rod so that a two-arm lever is formed.

EFFECT: improving operating safety at fixation of mine workings and simplification of the device design and an installation method of protection material.

4 cl, 4 dwg