CONDITIONS OF THE OVERLAYING STRATUM COLLAPSE WITH OUTCROP DURING REMINING THE ZHAMAN-AYBAT DEPOSIT

https://doi.org/10.48498/minmag.2024.232.8.005

The paper presents the results of studying the stress-strain state of the overlying rock massif in the room-and-pillar mining system with subsequent extraction of inter-chamber pillars at the Zhomart-2 mine. Calculations have been modeled using the RS2 program with the worked-out space width of 100 m, 150 m, 200 m, 300 m, 350 m and 400 m. The obtained data have been compared with the results of seismic exploration. Having compared the results of modeling the collapse of the overlying strata above the areas of remining with the results of seismic exploration, it has been concluded that they have practical similarities, and this model can be used for further modeling to determine the conditions for the complete undermining of the overlying strata of the earth’s surface and to identify the pattern of formation of the collapse arch from the equivalent span of undermining.

М.Zh. Balpanova, *А.Е. Kuttybayev, D.К. Таkhanov, A.B. Zhienbayev