SUBSTANTIATING INTER-CHAMBER PILLAR PARAMATERS WHEN DEVELOPING INCLINED BEDDING

https://doi.org/10.48498/minmag.2024.236.12.001

The article deals with the development of a technological flowchart of inclined deposits with the angle of incidence of 20-35 degrees by the example of the Zhilandy deposit. The values of the main compressive and tensile stresses were determined depending on the mining depth. The parameters of barrier and inter-chamber pillars were calculated taking into account the depth of development, the thickness and the ore deposit angle of incidence, the complexity of the mining and geological conditions of development, the physical and mechanical properties of rocks, fracturing and the structure of the enclosing rocks. The permissible parameters of the stope and the inter-chamber pillar were determined depending on the angle of occurrence. It was established that an inter-chamber pillar of a classical vertical shape as permissible only if the angle of incidence of the ore body was within 25 degrees; in the other cases, the rock massif is unstable and the probability of collapse of the inter-chamber pillar is very high.

D. Ivadilinova, *A. Rymkulova, A. Makasheva, Andrii Smirnov