THE TECHNOLOGY OF FASTENING THE VENTILATION SHAFT No. 3 OF THE «JOMART 2» DEPOSIT

This article is devoted to solving a problem of great practical importance, such as improving the technical and economic efficiency of construction and operation of workings, which is aimed at theoretical generalization and scientific justification of innovative design methods, constructive and technological solutions in the field of fastening deep vertical shafts.

Usually, the technology of sinking the rebels involves drilling a guide well from the upper horizon down to the existing development, then the chisel is removed and the expansion head is installed. Current levels of technology make it easy to hold a rising, 3 – 4 meters. Drilling of rising workings of a larger diameter is being mastered rather slowly, although the design of expansion heads and advanced drilling technologies allow drilling with a diameter of 5-6 meters with greater productivity and positive economic effect than in the past.

The technical result is to increase the efficiency of fixing the shaft shaft due to the design, which includes an annular support placed in a special niche of the shaft, secured with anchors. To prevent rock falls, a grid is installed, in places of geological violations, a spray-concrete support is additionally applied.