PROCEDURE FOR VERTICAL MINE WORKING BACKFILLING Russian patent published in 2011 - IPC E21F15/00 

FIELD: mining engineering.

SUBSTANCE: according to the procedure mine working is filled with backfilling mixture layer by layer. Upon laying each layer of backfilling mixture is subjected to autoclave treatment; for this purpose an autoclave chamber is constructed in the vertical mine working by arranging an isolating bridge in it at distance for backfilled part of borehole equal to thickness of a backfilling layer. Thickness is multiple to a step of shaft furniture. The bridge is positioned under the tier of a divider. Upon autoclave treatment of the laid layer all furniture above it is dismantled by height of the backfilling layer.

EFFECT: reduced expenditures, facilitation of favourable ecology.

1 dwg