Mining or in situ disintegration of hard material – Mine layouts
Patent
1989-11-22
1990-07-03
Novosad, Stephen J.
Mining or in situ disintegration of hard material
Mine layouts
299 18, E21C 4100
Patent
active
049385364
ABSTRACT:
Ore may be mined from an irregular ore body using a mining structure which conforms to the shape of the ore body, and which relieves stress that might otherwise hinder caving through bridging and compacting. The conic mass caving structure comprises a series of ore passes, extending from an upper position to a lower position in a tapered fashion. The ore passes intersect each of a series of hyperbolic drifts, which are shaped to surround the portion of the ore body to be mined. The hyperbolic drifts are parallel, and each hyperbolic drift surrounds a smaller area then the hyperbolic drift directly above it, to form an essentially conic shape. Secondary drawpoints are located at the intersection of each ore pass and each hyperbolic drift, while the primary drawpoints are located in a apex surrounded by the lowermost hyperbolic drift. Ore may be drawn from the secondary drawpoints, and either conveyed to the apex through chutes in the ore passes, or transported through crosscuts to a haulage mechanism in a shaft rising to the surface of the ground. The primary haulage mechanism to be utilized will consist of a conveying mechanism running through the haulage drift extending from the apex to a shaft, through which ore is removed vertically to the surface.
REFERENCES:
patent: 2298599 (1942-10-01), Smith
patent: 2536869 (1951-01-01), Bucky
patent: 3582138 (1971-06-01), Loofbourow
patent: 4072352 (1978-02-01), Janelid
Bagnell David J.
Novosad Stephen J.
LandOfFree
Conic mass caving structure and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Conic mass caving structure and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Conic mass caving structure and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1885994