vertical crater retreat mining method

  • Vertical Crater Retreat - RitchieWiki

    A vertical crater retreat (VCR), also referred to as vertical retreat mining, involves drilling large-diameter holes into the orebody vertically from the top of the mine, as opposed to the conventional blasthole stope method of drilling them in fans from bottom to top.

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  • Underground mining (hard rock) - Wikipedia

    There are two principal phases of underground mining: ... (VRM) also known as Vertical crater retreat (VCR) is a method where mine is divided in vertical zones ...

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  • The Blasting Test and Blasting Vibration Monitoring of ...

    ORIGINAL PAPER The Blasting Test and Blasting Vibration Monitoring of Vertical Crater Retreat Mining Method in the Luohe Iron Mine Zhenbin Rao . Sijing Cai

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  • Design and Application of Sublevel Stoping Methods - Edumine ...

    Introduction. This course refers to the generic mining method of sublevel stoping. The most commonly used sublevel stoping mining methods are sublevel open stoping, long-hole open stoping or blasthole stoping, and vertical crater retreat (VCR).

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  • A new model for mining method T selection of mineral deposit ...

    Mining method selection is a critical point and a strategic issue in the mining engineering ... vertical crater retreat mining (VCR), strip mining and novel

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  • Vertical Crater Retreat Mining Method - Image Results

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  • The Blasting Test and Blasting Vibration Monitoring of ...

    The Blasting Test and Blasting Vibration Monitoring of Vertical Crater Retreat Mining Method in the Luohe Iron Mine

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  • Shrinkage stoping Vertical Crater Retreat stoping

    Outline of Topic 5: Shrinkage stoping Ascending method of mining Advantages and Disadvantages Vertical Crater Retreat stoping Introduction Application Developmental sequence of stopes

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  • SHORT DELAY BLASTING PRESENTATION - Academia.edu

    SHORT DELAY BLASTING PRESENTATION. ... welcome.asp?view=full Vertical crater retreat ... mining method for ore bodies that ...

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  • VERTICAL CRATER RETREAT.pptx | Mining | Geology

    CASE STUDY ON VERTICAL. CRATER RETREAT MINING BY: SUJAN DALBEHERA DEVGAN SINGH 1 ABHAYA MISHRA VCR MINING Vertical crater retreat (VCR) mining is a method originally developed by the Canadian

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  • VERTICAL CRATER RETREAT - ResearchGate

    VCR MINING. Vertical crater retreat (VCR) mining is a method originally developed by the Canadian mining company INCO. Today, VCR is an established mining method used by mines all over the world that have competent, steeply dipping ore and host rock.

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  • Vertical crater retreat : a new mining method (Book, 1979 ...

    Get this from a library! Vertical crater retreat : a new mining method. [J W Williams]

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  • vertical crater retreat mining method - mellifera-charleroi.be

    Geotechnical aspects of vertical crater mining method … Vertical Crater Retreat is compared to other open stoping methods. Various geotechnical factors have been considered including the effects of stress concentration ...

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  • Vertical Crater Retreat | Mining | Nature - Scribd

    CASE STUDY ON VERTICAL. CRATER RETREAT MINING BY: SUJAN DALBEHERA DEVGAN SINGH ABHAYA MISHRA 1 VCR MINING Vertical crater retreat (VCR) mining is a method originally developed by the Canadian

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  • vertical crater retreat mining method – Grinding Mill China

    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.

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  • Shrinkage and Vertical Crater Retreat Stoping - SlideShare

    Underground mining method; Shrinkage stoping, Ascending method of mining, Advantages and Disadvantages, Vertical Crater Retreat stoping, Introduction, Applica…

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  • INFORMAnONTO USERS - McGill University

    sublevel open stope method. ... Longitudinal blasthole in sublevel vertical retreat. Longitudinallonghole mining horizontal retreat. Typical retreat mining

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  • Vertical Crater Retreat (VCR): Underground Mine ... - Koofers

    Applications appropriate for Vertical Crater Retreat -steep dip (over 45 ... How are Vertical Craters ... -higher risk for damaging surrounding rock than SLOS method

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  • Rock Mechanics Study of Shaft Stability and Pillar Mining ...

    Rock Mechanics Study of Shaft Stability and Pillar Mining ... A mechanized cut-and-fill method would be ... mechanized cut-and-fill and vertical crater retreat ...

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  • Underground Mining Methods - Body

    Underground Mining Methods and Applications ... Modifying the mining method and introducing new, ... Vertical or inclined underground opening

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  • Vertical Crater Retreat (VCR) con relleno by Vanessa Anjoul ...

    (VCR) Vertical Crater Retreat, en español cráteres de retroceso vertical. ... Canadian Institute of Mining, Metallurgy and Petroleum. (01 de Septiembre de 1979).

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  • Vertical Crater Retreat | Mining | Industries

    Vertical Crater Retreat. Blasthole mining is a general term applied to mining methods that employ long hole drilling for the production of ore. In most Blasthole methods the ore is blasted into a vertical opening.

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  • Research Study on Pillar Design for Vertical Crater Retreat ...

    A true vertical crater retreat (VCR) method was used at . ... Research Study on Pillar Design for Vertical Crater Retreat ... while a vertical bench mining method ...

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  • Vertical crater retreat mining in the Sudbury Basin ...

    Faced with rising costs and lower metal prices, several Ontario base metal sulphide mines have changed their method of mining to vertical crater retreat mining.

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  • Vertical crater retreat - QueensMineDesignWiki - CEMI

    Vertical crater retreat (VCR), also known as Vertical retreat mining, is an open stoping, ... "Vertical Crater Retreat Mining Method" Accessed online, ...

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