JUSTIFICATION OF PARAMETERS FOR MAINTAINING MINE WORKINGS IN THE CONDITIONS OF COAL MINES

https://doi.org/10.48498/minmag.2023.220.8.001

At greater depths of development of seams in the Karaganda basin, the multiplicity of intersection of mine workings reaches a value of 2, 3 and even 4. In general, maintenance costs increase with depth and account for 5% of total costs at shallow depths, and up to 15% at greater depths. Therefore, the problem of protecting and maintaining mine workings at great depths in the Karaganda basin is becoming a topical issue in the technology of coal mining. One of the rational ways to improve the condition of mine workings and save material resources is the use of anchoring. The volume of implementation of anchoring of mine workings in the mines of the Karaganda coal basin is currently 60% in pure form, and 25% – with combined fastening. The presented practical recommendations allow us to recommend progressive technological schemes of anchoring of mine workings to ensure the production of anchoring in the zone with high stresses in the contour rocks and are aimed at improving the technology and means of anchoring of mine workings.

V.F. Demin, B.E. Issakov, *A.M. Suimbayeva, E. Bilisbekkyzy