FIELD: mining.
SUBSTANCE: method of setting of allowable minimum power of ore body includes determination of the actual thickness of an ore body in the massif of rocks and useful component content. The geometrical parameters are determined: sublevel drift width and height, the distance between the roof and the soil of the next subfloor drifts, the width of unstable zone of roof breaks. The allowable minimum power of the ore body is determined mathematically, by substituting of numerical values of parameters in the mathematical formula. Comparing the actual and calculated value of thickness of the ore body, the expediency of production of a useful component from this ore body is determined.
EFFECT: invention allows to extract ore with the balance content of the useful component that provides efficiency of mining operations and subsequent treatment processes.
1 dwg
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