Mode of ore drawing from uprising branched up‑dip stopes

Abstract

One of the polymetallic deposits of the Union, where vein thickness varies from a few centimeters to 2‑3 m and dip angles from 25 to 90°, is represented by a variety of vein forms, among which branching ore bodies are widespread. The development of veins branching up‑dip is particularly difficult, as the acceptability of a productive stope‑and‑fill system on thin veins is determined by the possibility of partial ore drawing from the branched stopes to the main level drift. This determines the choice of the development system option, the volume of development and stoping preparation works, labor productivity and ore cost. The possibility of partial drawing during simultaneous breaking in all branches of the vein (main vein and apophyses) is determined by the rate of ore flow from the stopes along the vein and apophyses.

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