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Sublevel Open Stoping

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  • 833 Sublevel Open Stoping ABC 123 Testing Site

    833 Sublevel Open Stoping Abc 123 Testing Site

    Aug 03, 2010 8.3.3 Sublevel Open Stoping. If we had a stronger and more competent host rock, we could dispense with the need to keep ore in the stope to support the hanging wall as we do VCR mining. Indeed, such deposits do exist, and when they do, we can employ the open stoping method.

  • Considerations for Sublevel Open Stoping OneMine

    Considerations For Sublevel Open Stoping Onemine

    Sublevel stoping is not dependent on the width of the ore body. Widths of less than 6 m 20 ft, however, make the utilization of long-hole drilling techniques more difficult. The main criteria for sublevel open stoping are competent ore and stable host rock, regular ore boundaries, and a footwall dip that exceeds the angle of repose of broken ore.

  • SUBLEVEL OPEN STOPING DESIGN OF THE O640 L651

    Sublevel Open Stoping Design Of The O640 L651

    sub-level open stoping and the design process followed. The objective here is to present a design methodology applicable to sublevel open stoping, but also to then bridge the gap between theory and practice by applying said methodology to an actual design example.

  • Evaluation of the use of sublevel open stoping in the

    Evaluation Of The Use Of Sublevel Open Stoping In The

    Mar 01, 2021 The DLSOS stoping method is an adapted sublevel open stoping method with backfill. In this method, the stoping sequence is from bottom-up, and therefore, the blasted ore is mucked under the protection of the upper stope pillar. The muck is not affected by the weight of overlying strata, and the stress is not transferred.

  • Sublevel Stoping in Small Mines

    Sublevel Stoping In Small Mines

    Nov 07, 2020 Nov 07, 2020 Sublevel stoping was first developed in the Michigan iron mines many years ago. Since that time this method, and modifications with long hole drilling, have been used in a number of non-ferrous mines and have been described in various papers and articles. ... Since this is an open stope method, it requires wall rock that will stand over ...

  • Geotechnical Design for Sublevel Open Stoping

    Geotechnical Design For Sublevel Open Stoping

    The first comprehensive work on one of the most important underground mining methods worldwide, Geotechnical Design for Sublevel Open Stoping presents topics according to the conventional sublevel stoping process used by most mining houses, in which a sublevel stoping geometry is chosen for a particular mining method, equipment availability, and work force experience.

  • PDF Sublevel Stoping Underground Mining Methods

    Pdf Sublevel Stoping Underground Mining Methods

    Sublevel stoping configuration method in stopes where the ore is detonated by drilling a fan. or parallel large part of the ore is removed from the stope as it is being detonated, leaving. open ...

  • Sublevel open stopping assignment

    Sublevel Open Stopping Assignment

    Dec 16, 2014 Dec 16, 2014 Sublevel open stopping sublevel stoping is a vertical mining method in which a large open stope is create within the vein. This open stope is not meant to be occupied by the miners therefore ,all work of drilling and must be performed from sublevel within the ore block. Three different variations of sublevel stoping are practiced 1.

  • Mining Stope Development Method

    Mining Stope Development Method

    Mar 30, 2017 In sublevel stoping a form of open stoping, ore chutes, manway, and starting raises must be put up and one or more drifts driven on each sublevel fig. 60, B. In sublevel caving and top-slicing, raises are put up at intervals of about 20 to 50 feet

  • Sublevel stopingUnderground mining methods

    Sublevel Stopingunderground Mining Methods

    Oct 22, 2014 Sublevel Stoping Considerations on the method the sublevel stoping is considered a method of extracting medium to large scale other names for the method variations bighole open stoping, long-hole stoping or blasthole Prof. Dr. H.Z. Harraz Presentation sublevel stoping 3 Conditions for application of the deposit ore resistance moderate to ...

  • Sub Level Open Stope Ventilation Design at Mount Isa

    Sub Level Open Stope Ventilation Design At Mount Isa

    Open stoping is currently the mining method employed, and is used for primary stoping and pillar recovery adjacent to cement fill walls. The development of stoping methods in the 1100 Orebody has been documented by Kirkby R.W., Blair J.R., and Hutton R.C. 19781, Hornsby B. and Sullivan B.J. 1978, and Alexander E.G. and Fabjanczyk M.W 1981.

  • Geotechnical Design for Sublevel Open Stoping

    Geotechnical Design For Sublevel Open Stoping

    Mar 12, 2014 Mar 12, 2014 Geotechnical Design for Sublevel Open Stoping. This volume from CRC Press is published next month. It is the first comprehensive work on one of the most important underground mining methods worldwide, presenting topics according to the conventional sublevel stoping process used by most mining houses, in which a sublevel stoping geometry is ...

  • Compare Stoping Methods of Mining

    Compare Stoping Methods Of Mining

    Apr 05, 2017 The ore can be removed from the stopes as broken, and usually is but often, especially in sublevel stoping, considerable broken ore can be accumulated in the stopes to form a reserve. Shrinkage stoping lacks the flexibility of other open-stope methods. Waste cannot be sorted from the broken ore in the stopes, although some sorting may be done ...

  • 833 Sublevel Open Stoping ABC 123 Testing Site

    833 Sublevel Open Stoping Abc 123 Testing Site

    Aug 03, 2010 8.3.3 Sublevel Open Stoping If we had a stronger and more competent host rock, we could dispense with the need to keep ore in the stope to support the hanging wall

  • Considerations for Sublevel Open Stoping OneMine

    Considerations For Sublevel Open Stoping Onemine

    Sublevel stoping generally is a large-scale open stoping method. It sometimes is referred to as long-hole or blasthole stoping. This method usually is applied to strong

  • SUBLEVEL OPEN STOPING DESIGN OF THE O640 L651

    Sublevel Open Stoping Design Of The O640 L651

    SUB-LEVEL OPEN STOPING DESIGN OF THE O640, L651 AND N659. SUB-LEVEL OPEN STOPES IN THE 3000 OREBODY OF THE MOUNT ISA. COPPER MINES, QUEENSLAND, AUSTRALIA. L.

  • Evaluation of the use of sublevel open stoping in the

    Evaluation Of The Use Of Sublevel Open Stoping In The

    Mar 01, 2021 Evaluation of the use of sublevel open stoping in the mining of moderately dipping medium-thick orebodies 1. Introduction. An orebody that has a dip angle of 20 50

  • Geotechnical Design for Sublevel Open

    Geotechnical Design For Sublevel Open

    The first comprehensive work on one of the most important underground mining methods worldwide, Geotechnical Design for Sublevel Open Stoping presents topics

  • PDF Sublevel Stoping Underground Mining Methods

    Pdf Sublevel Stoping Underground Mining Methods

    Sublevel stoping configuration method in stopes where the ore is detonated by drilling a fan. or parallel large part of the ore is removed from the stope as it

  • Sublevel open stopping assignment

    Sublevel Open Stopping Assignment

    Dec 16, 2014 Sublevel open stopping sublevel stoping is a vertical mining method in which a large open stope is create within the vein. This open stope is not meant to be