longitudinal retreat mining method

Musselwhite mine mill Canadian Mining JournalCanadian

Jun 01, 2007 Phase 4 mining began in the first half of 2005 and will continue at a rate of 659,000 t/y until 2011 Where mining widths are greater than 15 0 m, transverse stopes are developed Where mining widths are less than 15 0 m, longitudinal retreat methods are employed Production from the PQ zone began in September 2003 at a planned rate of 550 t/d

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longitudinal retreat mining method restaurant la luna de

Design and Operational Issues for Increasing Sublevel Cave the sublevel cave mining process should promote rnaximizing both these parameters mining methods that use artificial support which simplifies mine design and production the footwall or hangingwali, depending upon the direction of rnining retreat used for narrow veined structures in longitudinal sublevel caves

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ITH Longhole Drill Rigs For Underground Mining Xinhai

Xinhai DU311 is a center articulated, carrier mounted in the hole ITH drill rig designed for high mobility and utility in underground mining This compact machine was developed with an on board reciprocating booster for the productive drilling of holes with

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Vertical crater retreat mining method

Vertical crater retreat mining method Baselining Vertical Retreat Mining as a Mining Method Baselining a Mining Method Vertical Crater Retreat VRM Baselining a process is not an easy task One must get down on the ground floor and document process structure from start to finish A convenient method for representing a process and all of its components is simple flowcharting

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TECHNICAL REPORT AND PRELIMINARY ECONOMIC

technical report and preliminary economic assessment of the upper beaver gold copper deposit kirkland lake, ontario, canada for queenston mining inc

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PDF Underground mining Methods ResearchGate

The essential geomechanical features of longwall and caving methods of mining were outlined in Chapter 12 Longwall and caving methods are distinguished from other mining methods by

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narrow vein gold ore dressing methods

Longitudinal longhole retreat QueensMineDesignWiki 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 It may also be referred to as bench stoping or sublevel benching

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Reducing Dilution with Technology A twist on the AVOCA

The Temporary Rib Pillar TRP mining method was developed by Orica to take advantage of fully wireless blast initiation Musselwhite utilizes both conventional and modified Avoca mining methods depending on the access available for that retreat Retreats without a secondary access are mined utilizing modified Avoca With

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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 Long hole open stope: A method of mining involving the drilling of holes up to 90 feet long into an ore body and then blasting a slice of rock which falls into an open space

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C 2 Eagle Project Geotechnical Study

A stope stability assessment was completed using the Mathews Method based on the initial stope dimensions for transverse 15 60 m by 20 m by 30 m high and longitudinal 5 15 m by 60 m by 30 m high longhole mining as proposed in the AMEC Scoping Study

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Waterberg PGM Project, Bushveld Mining Technology

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

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Agnico Eagle Mines Limited Operations Development

Two mining methods are used at LXinhaide longitudinal retreat with cemented rock or paste backfill, and transverse open stoping with cemented rock backfill, paste or unconsolidated backfill In addition, to address concerns regarding the frequency and intensity of seismic events encountered at the lower levels of the LXinhaide mine, a hybrid of

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Choice of Method Welcome to the Narrow Vein Mining Project

During the visit, the mine was putting more emphasis on the narrow vein mining method The method used at David Bell mine is the Alimak mining method However, for narrower veins, the longitudinal retreat mining is used The selection criteria for the Alimak mining method are numerous The main one is based on economic and the other ones are:

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kolkata sub level stopping mining method ppt

longitudinal retreat mining method 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

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Agnico Eagle Oulu Mining Gold Explorer in the North

Lapa hosts an underground mining operation accessed by a 1,369 metre deep shaft Two mining methods are used longitudinal retreat with cemented backfill, and locally transverse open stoping with cemented backfill The dilution rate for mining the reserves averages 71 The production rate averages 1,700 tonnes/day

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Longhole Welcome to the Narrow Vein Mining Project

This method consists in a variety of chambers where the mine blocks are generally cut by sub levels from which long holes are drilled in plans that are generally parallel These boreholes allow to blast the block by successive vertical break The broken ore is mucked out by drawpoints or by longitudinal retreat

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TECHNICAL REPORT AND PRELIMINARY ECONOMIC

technical report and preliminary economic assessment of the upper beaver gold copper deposit kirkland lake, ontario, canada for queenston mining inc

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PDF Underground mining Methods ResearchGate

The essential geomechanical features of longwall and caving methods of mining were outlined in Chapter 12 Longwall and caving methods are distinguished from other mining methods by

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Edumine Design and Application of Sublevel Stoping Methods

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 Variations of this method include vein Alimak mining, transverse stoping, Avoca and longitudinal mining Sublevel stoping accounts for more than 60 of all

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Longhole Stoping at the Asikoy Underground Copper Mine

Longhole Stoping at the Asikoy Underground Copper Mine in Turkey Alper Gönen Mining Engineering Department, Dokuz Eylul University, úzmir, Turkey 1 Introduction Asikoy underground copper mine is located in Küre county, some 60 km north of Kastamonu province and 25 km from Black Sea cost Underground mining method is

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Lapa Mining Method 26m Longitudinal Retreat AGNICO

Lapa Mining Method 26m Longitudinal Retreat AGNICO EAGLE 4 2m Title: PowerPoint Presentation Author: George Dikho Created Date: 3/1/2013 10:26:46 AM

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Mining Tseau

Initial plans are to use the longitudinal retreat long hole mining method referred to as Avoca or Bench and Fill mining Production levels are set every sixty or seventy five meters according to the local vertical continuity, and mining sublevels are spaced at fifteen meters Production is projected at 300 tons per day following a short ramp up

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The Obuasi Mine Longitudinal Retreat Mining Method

F, 2012 The Obuasi mine longitudinal retreat mining method application and challenges, in Proceedings Narrow Vein Mining 2012, pp 59 70 The Australasian Institute of Mining

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Major Mines Projects Loulo Gounkoto Mine

Apr 02, 2019 Three mining methods are used at the Yalea and Gara underground mines They are long hole transverse open stoping long hole longitudinal retreat open stoping and stoping under rock fill SURF SURF mining is planned to be introduced in the weathered areas of Yalea South Upper

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Ventilation on Demand VOD VentSim CONTROL Howden

The net energy savings presented by a VOD system including up front capital costs typically are on the order of 1 of total mining and milling costs on a per tonne basis Therefore, considering the average mine's profitability the implementation of VOD can increase net profit by 10 or more

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Kamoto Mine, Lualaba, Democratic Republic of Congo

Mining at Kamoto mine Room and pillar, transversal longhole retreat with back fill, and longitudinal longhole retreat with back fill are currently applied at the Kamoto underground mine Room and pillar method is employed at the OBS and OBI horizons, while the access drives are constructed along strike on the hanging wall contact

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longitudinal retreat mining method

longitudinal retreat mining method greenrevolutionorgin 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

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Longitudinal Retreat Mining Method ilristorantelatorre it

longitudinal retreat mining method rock crusher and mine solution projects in global Longitudinal longhole retreat Centre for Excellence in Mining, From Queen''s University Mine Design Wiki Longitudinal longhole retreat is a branch of the generic mining method known as sublevel stoping For longitudinal retreat, Transverse longhole stoping

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Types of Mining Methods Sell Side Handbook

Compared to other mining methods, room and pillar mining is a low cost method with a low recovery rate since some ore is left behind in pillars Yet, the method causes very little dilution as the contact between ore and waste is limited due to the waste being on top and ore being at the bottom

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vertical retreatment mining method

longitudinal retreat mining method samatourfr 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

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PDF Open Stope Mining in Canada ResearchGate

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

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Agnico Eagle Oulu Mining Gold Explorer in the North

Lapa hosts an underground mining operation accessed by a 1,369 metre deep shaft Two mining methods are used longitudinal retreat with cemented backfill, and locally transverse open stoping with cemented backfill The dilution rate for mining the reserves averages 71 The production rate averages 1,700 tonnes/day

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Lapa Mining Method 26m Longitudinal Retreat AGNICO

Lapa Mining Method 26m Longitudinal Retreat AGNICO EAGLE 4 2m Title: PowerPoint Presentation Author: George Dikho Created Date: 3/1/2013 10:26:46 AM

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longitudinal retreat mining method keukensmeskens be

Retreat mining is a term used to reference the final phase of an underground mining Retreat mining is the term commonly referred to as the mining method Transverse longhole stoping QueensMineDesignWiki Mar 19, 2012 Transverse longhole stoping is a bulk mining method in which the long Longitudinal longhole methods are very well suited to

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Room and pillar mining

Retreat mining below is an example of a process like this Retreat mining Retreat mining is often the final stage of room and pillar mining Once a deposit has been exhausted using this method, the pillars that were left behind initially are removed, or pulled, retreating back towards the mine's entrance

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kolkata sub level stopping mining method ppt

longitudinal retreat mining method 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

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Caving Underground Mining Methods longwall, Sublevel

Oct 23, 2014 Caving Underground Mining Methods longwall, Sublevel caving, Block caving 1 This material is intended for use in lectures, presentations and as handouts to students, and is provided in Power point format so as to allow customization for the individual needs of course instructors

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Effect of stope construction parameters on ore dilution in

thesis is a case study of the Lapa Mine of Agnico Eagle Mines Limited, a gold mining operation situated in the Abitibi region of Quebec The Lapa orebody is a narrow vein, steeply dipping deposit with varying width, and is extracted with longitudinal retreat mining method

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Choice of Method Welcome to the Narrow Vein Mining Project

During the visit, the mine was putting more emphasis on the narrow vein mining method The method used at David Bell mine is the Alimak mining method However, for narrower veins, the longitudinal retreat mining is used The selection criteria for the Alimak mining method are numerous The main one is based on economic and the other ones are:

Get Price

Longitudinal longhole retreat QueensMineDesignWiki

Jan 31, 2018 Çayelis mine design is based on underground bulk mining methods with the use of delayed backfill to extract ore in a sequential manner The primary mining method is retreat transverse and longitudinal long hole stoping with paste fill and loose or consolidated waste rock backfill

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longitudinal retreat mining method greenrevolution org in

Eagle Mine215 Кб This method provides the cost advantages of bulk mining, while maintaining a degree of selectivity and operational flexibility The majority of the stopes will be mined as transverse bench and fill stopes, with some thinner thickness zones of the orebody mined as longitudinal retreat

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Musselwhite mine mill Canadian Mining JournalCanadian

Jun 01, 2007 Phase 4 mining began in the first half of 2005 and will continue at a rate of 659,000 t/y until 2011 Where mining widths are greater than 15 0 m, transverse stopes are developed Where mining widths are less than 15 0 m, longitudinal retreat methods are employed Production from the PQ zone began in September 2003 at a planned rate of 550 t/d

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North American Palladium North American Palladium

Oct 05, 2011 Further assessment of bulk mining methods on the increased size of the Offset Zone, the surrounding expansion targets, along with an updated assessment of the geotechnical effects on the rockmass, led to a reconsideration of the main mining method to be used in the Offset Zone The longitudinal retreat blocks will be filled with a

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Longitudinal Retreat Mining Method

longitudinal retreat mining method longitudinal retreat mining method Eagle Mine215 Кб This method provides the cost advantages of bulk mining Get Price And Support Online Eagle Mine Lundin Mining Mine facilities and method The orebody is accessed from surface by decline mined

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Effect of stope construction parameters on ore dilution in

thesis is a case study of the Lapa Mine of Agnico Eagle Mines Limited, a gold mining operation situated in the Abitibi region of Quebec The Lapa orebody is a narrow vein, steeply dipping deposit with varying width, and is extracted with longitudinal retreat mining method

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Rook I Uranium Project, Saskatchewan Province, Canada

Mining at Rook I uranium project The Rook I uranium project will employ transverse stope mining and longitudinal retreat stope mining methods for extracting ore The Arrow deposit is proposed to be accessed by using two shafts, including a production shaft and a ventilation shaft

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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

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