METHOD TO BACKFILL WORKED OUT SPACE Russian patent published in 1995 - IPC

Abstract RU 2029877 C1

FIELD: mining. SUBSTANCE: slurry is pumped in worked out space in two steps. Slurry has soluble rock. Magnesium and/or calcium chlorides are added to the slurry of the second step. EFFECT: effective backfilling of worked out space in underground developing. 4 cl, 1 tbl

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RU 2 029 877 C1

Authors

Papulov L.M.

Pojlov V.Z.

Dates

1995-02-27—Published

1991-07-16—Filed