DEVICE FOR ROOF BOLTING MONITORING Russian patent published in 2015 - IPC G01C15/04 E21C39/00 

FIELD: mining.

SUBSTANCE: device for roof bolting monitoring contains check points, each of them is connected by flexible link with the appropriate indicator, and estuarine tube. At that the indicators are secured on the flexible links by the clamps, and are located one in another or are independent from each other. Besides the device for roof bolting monitoring has: the check point is made as spring with unbend ends; the indicators on the external surface have horizontal three-colour marking, it is applied using the paint, or is made out of straps separate or combined on the plate or shell. The indicators have additional shell out of the polymer material; flexible links are made out of stainless steel rope or out of the polymer or composite materials. The estuarine tube is made out of the metal or polymer, or composite materials.

EFFECT: simplified installation, increased informativeness and reliability of state monitoring of the roof bolting and displacements of the enclosing rocks of the horizontal and inclined underground mine tunnels.

6 cl, 9 dwg