FIELD: mining industry; may be used in stripping the coal, ore and other deposits, breakage of minerals in underground and open-pit mining. SUBSTANCE: in excavation of ground above the prepared rock for stripping ridges are left above blastholes between which weakening solution is poured with consideration of rock geological occurrence and, if required, solution is distributed between blastholes for pouring. EFFECT: higher efficiency. 5 cl, 4 dwg
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Authors
Dates
1997-12-20—Published
1995-07-06—Filed