METHOD FOR MINING OF CONTIGUOUS GENTLY DIPPING BEDS Russian patent published in 1995 - IPC

Abstract RU 2039261 C1

FIELD: mining. SUBSTANCE: method for mining of contiguous gently dipping beds includes sealing of floor of upper bed in airway and strengthening of side mass on the strike ahead of longwall of underlying bed in conveyer drift. Established on the basis of investigation and calculation are depth of floor sealing and strengthening of side mass depending on thickness of interbeds. EFFECT: higher efficiency. 3 cl, 7 dwg

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RU 2 039 261 C1

Authors

Mashkovtsev I.L.

Nefedov P.P.

Prezent G.M.

Nefedov A.P.

Tserr L.B.

Dates

1995-07-09Published

1992-03-20Filed