Cut and fill stoping
WebApr 1, 2014 · Introduction Application of Cut-and-Fill (C & F) stoping The activity cycle of the (C & F) method Stages of the production cycle of the C & F method Sequences of extracting ore bodies Filling in C ... WebCut and fill stoping and paste backfill. Cut and fill stoping is a more selective mining method than sub-level caving, which is expected to achieve greater recovery of ore as well as reducing the dilution of ore with un …
Cut and fill stoping
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WebCut-and-fill and stull stoping are intended for moderately competent rock, whereas square-set stoping is suitable for the least competent rock. Supported methods have declined in use since World War II, primarily because cut-and-fill stoping is the only method that lends itself to mechanization. WebIn this way, firstly, all the parameters contributing to unplanned dilution in underground stopes and specifically the cut-and-fill stoping method are identified. Secondly, the parameters are weighed using the fuzzy-Delphi analytical hierarchy process. Thirdly, the most effective parameters are selected among the pool of effective parameters. ...
WebCut-and-Fill mining method. Information. Development in the ore of the upper and lower drift. The distance between the levels is 91 m (300 ft). ... Mechanized cut-and-fill stoping. Information. The mechanized cut-and-fill stoping was selected to meet the following factors: gently dipping; WebIn mining: Cut-and-fill mining. …mining and sublevel stoping called rill mining. In this method drifts are driven in the ore separated by a slice of ore two or three normal slices …
WebIn shrinkage stoping, mining proceeds from the bottom upwards, in horizontal slices (similar to cut and fill mining), with the broken ore being left in place for miners to work from. Because blasted rock takes up a … WebApr 5, 2024 · With cut-and-fill stoping, preparatory work is similar to that for shrinkage stoping, except that raises must be put through to the level above before stoping can progress far, if filling material has to be …
WebTopic 6: Underground Mining Methods Cut-and-Fill stoping
WebFeb 3, 2024 · It uses fill stoping and is favored for areas containing weak or broken rock. While underhand cut-and-fill is sometimes used (where the introduction method progresses from the top down), the most common type is overhand cut-and-fill. In this technique, … atd duranWeb8.4.1c Stull Stoping. This method is designed for rock masses that are weak but somewhat competent – not as weak to require square sets, but not sufficiently competent to use cut and fill. The method is also conceptually simple. Place timber posts at close intervals to maintain the opening between the hanging wall and footwall. atd du morbihanWeb8.4.1a Cut and Fill Stoping. Cut and fill is a very expensive method, but is very selective. You might predict the type of deposits in which it would be employed as the principal … asla merit award