longitudinal retreat mining method

longitudinal retreat mining method

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  • Transverse longhole stoping

    Longitudinal longhole methods are very well suited to retreat mining, and can be planned such that development occurs within the ore itself, reducing development costs, ,...

  • retreat mining ventilation

    Home / Retreat Mining The predominant method of longwall mining in Australia is longwall retreat system Get a Price define retreat mining - bsquarefoundation , Longitudinal longhole methods are very well suited to retreat mining, , Ramps can also provide a means of ventilation, , M Open Stoping Mining in Canada...

  • Longitudinal longhole retreat

    Longitudinal longhole retreat is a branch of the generic mining method known as sublevel stoping For longitudinal retreat the long axis of the stope is along (or parallel) to the strike of the orebody...

  • Musselwhite mine & mill

    Where mining widths are less than 150 m, longitudinal retreat methods are employed Production from the PQ zone began in September 2003 at a planned rate of 550 t/d of ore Conventional longhole and sub-level drifting with longhole stoping suits this structure...

  • longitudinal retreat mining method

    Sublevel open stoping, by longitudinal retreat, is the most commonly used stoping methodLongitudinal retreat mining of deep, narrow vein lenses under sand fill at the Golden Giant mine resulted in shear failure parallel to the ore - HW contact [Figure 8b12]...

  • STILL DRAFTING PROJECT REAL 2

    11 Fig31 Longitudinal Retreat Mining Method (Source: AGA Mine Technical Services Dept) 323 Transverse Open Stoping This method is practiced in wide ,...

  • SmartEXEC TM Ventilation

    Case study for three typical mining projects SmartEXEC TM Ventilation-on-Demand Ventilation-on-Demand (VOD) is a technology which has been undergoing continuous...

  • ERG Easy Slot Master Video 3

    Mar 23, 2014· Longitudinal longhole retreat is a branch of the generic mining method known as sublevel stoping and often requires the development of a rise or slot prior to production blasting...

  • mening gold company in ghana

    Oct 11, 2018· Mining in GhanaList of Mining companies Find in our business directory the list of companies offering Mining in Ghana This company is a small scale Gold Mining in GhanaNasdaq Dec 01, 2010 Gold Mining in...

  • Waterberg PGM Project

    Three mining methods including blind longitudinal retreat, transverse sub-level open stoping and longitudinal sub-level open stoping have been shortlisted to conduct mining at the project The depth and the thickness of the mine will enable the implementation of low-cost mechanised underground mining methods...

  • longitudinal retreat mining method

    Mining Terms - Magyver Longitudinal Retreat Mining: A method of mining an orebody beginning at one stope and gradually mining new stopes towards the central ore-handling system Get More Info...

  • longitudinal retreat mining method

    Oct 11, 2018· longitudinal retreat mining method Geology GlossaryDefinitions of geological terminology Geology GlossaryDefinitions of Geologic Terms Geology is the scientific study of the Earth, the materials of which it is made, the structure of those materials, and the processes acting upon them...

  • longitudinal retreat mining method

    The base has a focus on supporting some particular endeavour, such as a Mars Exploration mission, a military base, a planetary defense fortress, a military observation post, a military picket along the neutral zone, a trading post or "factory", a mining ....

  • longitudinal retreat mining method

    ERG Easy Slot Master Video 3 - YouTube Mar 23, 2014 Longitudinal longhole retreat is a branch of the generic mining method known as sublevel stoping and often requires ,...

  • (PDF) Open Stope Mining in Canada

    Longitudinal open stope mining, or sublevel retreat (after Potvin and Hudyma, 1989) Much of the development necessary for this mining method can be kept in the orebody...

  • vertical crater retreat mining method

    Vertical Crater Retreat Stoping as Applied at the Homestake, 28 Jul 2012, Therefore, the feasibility of applying the VCR stoping method at the Homestake Mine was explored Vertical Crater Retreat stoping is a recent innovation in large-scale underground mining based on CW ~ivingston'scrater...

  • Lapa Mining Method

    Lapa Mining Method - 26m Longitudinal Retreat AGNICO EAGLE 42m Title: PowerPoint Presentation Author: George Dikho Created Date: 3/1/2013 10:26:46 AM...

  • Major Mining Company In Mali

    Major Mining Company In Mali Mining reforms in Mali leave the country poorer Mining reforms in Mali leave the country poorer The mining code also introduced major fiscal reforms, the number of foreign mining companies in Mali increased...

  • longitudinal retreat mining method

    longitudinal retreat mining method Brentley, Lucas and Associates - BLA Consultants Rock Engineering consultant Jaco le Roux from BLA recently completed the analysis and design of a bottom-up longitudinal retreat open stoping method for Obuasi Mine ....

  • Choice of Method

    The mining method mostly used is a transverse primary and secondary longhole method Usually, the development is done two years in advance of the production schedule Therefore, when narrower areas are encountered in these sectors, the mining method generally used to recover these stopes is the longhole retreat method...

  • method grinding journal

    A method of grinding plural journal portions of a workpiece with plural grinding wheels In the method, a pair of work rests are used to support two selected journal portions, and the selected two journal portions have a larger initial diameter as compared with the rest of the journal portions...