Spiral Slot-and-pillar Mining With Backfill.
Innov in Mining Backfill Tech 4th Int Symp Mng W/backfill Montreal 10/2-5/89 Pp 225-23 :225-23
An innovative mining method termed "spiral slot-and-chamber mining with backfill" has been conceptualized as a possible alternative to room-and-pillar mining. It is a total extraction method applied to nearly horizontal, strata-bound ore deposits. Conventional methods of mining tabular deposits extract ore from panels laid out in a rectilinear pattern. It may be possible to transform this layout into a curvalinear one so that one continuous panel, along a spiral, is mined. There are several benefits of the spiral pattern of mining. This paper discusses the novel mining method and a feasibility study proposed to the U.S. Bureau of Mines.
Innov. in Mining Backfill Tech. (4th Int. Symp. Mng. W/backfill, Montreal, 10/2-5/89) Pp 225-23