METHOD FOR CONTROL OF HEAVING OF MINE WORKING FLOOR Russian patent published in 1994 - IPC

Abstract RU 2019705 C1

FIELD: underground mining operations. SUBSTANCE: method includes hole drilling in working floor to detect layer of plastic rocks by geological data, and camouflet blasting in this layer. Plastic rocks are consolidated to form hollow into which overlaying rocks are caved. In so doing, zone is formed in working floor filled with loose rock mass possessing high yielding. EFFECT: higher efficiency. 2 dwg

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RU 2 019 705 C1

Authors

Shtele V.I.

Dates

1994-09-15—Published

1991-04-02—Filed