Justification and selection of the optimal method for draining the field of the “Angrensky” open pit mine in Uzbekistan

Abstract

Abstract An increase in the stability of the slopes of the sides of a quarry or a ledge when using drainage wells with a camouflage cavity is proved in the article by the polarization-optical method. On the obtained diagrams, the distribution of stresses within the massif clearly shows that in an intact massif, the main concentration of stresses is concentrated in the lower edge of the slope, which contributes to the formation of a plane of displacement of the massif and the development of deformations. The presence of a camouflage cavity leads to a redistribution of stresses with the formation of a stress concentration around the camouflage cavity and a significant decrease in the stress concentration in the lower edge of the slope. Thus, we can say that the use of wells with a camouflage cavity not only drains the rocks along the side, but also unloads the border massif, creating favorable conditions for increasing the stability of the drained slope of the side of the open pit.