mining methods for narrow veins

mining methods for narrow veins

  • Choice of Method Welcome to the Narrow

    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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  • Narrow Vein Mining Anaconda Mining

    Narrow Vein Mining The main objective of the Narrow Vein Mining project is the development prototyping and optimization of a new technology to facilitate the mining of steeply dipping narrow veins including the Romeo Juliet Deposit and Deer Cove Deposit located at the Point Rousse Project

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  • Maptek Vulcan Narrow vein underground

    Narrow vein underground mining Klondex Mines customised the Maptek Vulcan toolbox using Lava scripting to create a short term modelling process for narrow vein mining freeing up time for other work Klondex Mines Ltd specialises in narrow vein gold and silver deposits

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  • Design and application of an efficient mining method for

    The mining method must be varied for different specific deposits In summary there are three dominant techniques worldwide for mining gently dipping narrow vein Longwall mining method this method is suitable for mining bedding deposit with a dip less than 35° 3 4 m thickness and poor roof

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  • Costerfield a narrow vein case study AusIMM

    Narrow vein mine design at the Hoyle Pond mine longhole and panel mining methods are employed to excavate the narrow gold bearing structures Veins mined by these methods typically range

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  • A study of gravity flow principles of sublevel

    10/25/2017· The loss and dilution of ore by sublevel caving mining method is influenced by gravity flow principles of caved granular materials (rocks) Gravity flow of broken rock (muck) in dipping narrow veins

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  • Types of Underground Mining Method

    In any discussion of Methods of Underground Mining Comparison one is repeatedly confronted with the difficulty of dealing with so many variable conditions It is not an exact science and in the choice of a method each varying factor has a certain weight which in many cases experience alone can determine

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  • Anaconda Mining Partners in Innovative

    6/21/2017· While many gold deposits can be effectively mined using current mining technology there are numerous deposits that despite high grades present unique challenges with traditional mining methods because of their narrow vein geometry There are numerous mineralized veins such as this within Newfoundland and Labrador

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  • Narrow Vein Mining Techniques in the United

    Narrow vein metalliferous mining in the UK has a long history but there are only two small gold operations at present (Clogau and Gwynfynydd) Four further gold properties are at various stages of evaluation (Calliachar Cononish Curraghinalt and Maestryfer) The South Crofty tin mine closed earlier in the year Narrow veins are exploited underground and

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  • Mining methods slidesharenet

    10/23/2011· Mining methods for s teeply dipping and massive deposits Self supported methods Sublevel caving Block caving Induced Block Caving Sublevel stoping Undercut and fill stoping Square set stoping Cut and fill stoping Shrinkage stoping With caving of overburden Without caving of overburden Supported methods Large open stope mining Top slicing

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  • narrow vein mining Archives International

    The company has become renowned for developing machines for the underground narrow vein market and said of the mining technique The advantage of the narrow vein mining methods is to improve the ore grade delivered to the mill significantly reduce waste development and reduce equipment mining ventilation and fuel costs

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  • Improvement of narrow vein mining method

    The mining of narrow vein has high ore loss and dilution ratio more fringe preparation work for mining low technical economical indexes Some research for improving mining method have been carried out in Jiaojia Gold Mine and a good effect is obtained

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  • Narrow Vein Mining Research Project

    This web site presents the results of a research project on narrow vein mining lead by Natural Resources Canada from 1999 to 2005 Here you will find for each mine visited the information collected on mining methods challenges and innovative solutions complete with documents photos plans and sketches

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  • Narrow Vein and Reef 2008 Steve Konieczki HOLLISTER

    The Southern African Institute of Mining and Metallurgy Narrow Vein and Reef 2008 Steve Konieczki Page 7 The drifting option incorporates mining the vein on one side of the sill drive face The wider section that may be either the vein or the waste is resued and mucked before slashing the narrow

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  • narrow vein mining methods educationcarein

    Narrow Vein Mining Conference 2008 The AusIMM Publications The future of narrow vein mining depends upon skilled professionals and on developing practical and innovative methods for orebody definition mining and More details » Get Price

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  • Full text of Ore mining methods comprising

    Full text of Ore mining methods comprising descriptions of methods of support in extraction of ore detailed descriptions of methods of development of mines of stoping and mining in narrow and wide veins and bedded and massive deposits including stull and square set mining filling and caving methods open cut work and a discussion of costs

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  • Ore mining methods comprising descriptions

    Internet Archive BookReader Ore mining methods comprising descriptions of methods of support in extraction of ore detailed descriptions of methods of stoping and mining in narrow and wide veins and bedded and massive deposits including stull and square set mining filling and caving methods open cut work and a discussion of costs of stoping

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  • Reducing waste rock dilution in narrow vein

    The paper describes effective technological ways of reducing waste rock dilution using the basis of the practical conditions of mining narrow veins in tungsten mines in China and examines the economic aspects of mines in relation to waste rock dilution and the causes of ore dilution

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  • narrow

    Narrow Vein Mining Home Page Anaconda MiningThe main objective of the Narrow Vein Mining project is the development prototyping and optimization of a n

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  • CN104265297A Mining method for multilayer

    The invention discloses a mining method for a multilayer fragile gently inclined extra narrow ore vein According to the method mining areas are divided along the ore body trend; mining area columns (5) are reserved among the mining areas; a mine slope (1) is arranged in each mining area column (5); one vein following combined roadway is arranged in the inclination direction every 20m to 40m

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  • Strategies for Minimising and Predicting Dilution in

    Strategies for Minimising and Predicting Dilution in Narrow Vein Mines The Narrow Vein Dilution Method P C Stewart1 and R Trueman2 ABSTRACT An improved ability to predict dilution for narrow vein deposits enables more accurate economic comparisons between mechanised longhole stoping and other narrow vein mining methods as well as reducing

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  • Mining Methods Mineral Processing

    The mines and mining methods of the now defunct Arizona Mining Copper Co are situated in the Morenci Metcalf copper district in southeastern Arizona This copper bearing district covers a triangular mountainous area of about 3 square miles rising abruptly from

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  • Narrow Vein Mining Conference Proceedings

    These 2008 proceedings will interest those involved in narrow vein mining including geologists mining and geotechnical engineers and metallurgists The 28 multi disciplinary papers cover exploration and resource geology mining geomechanics mining methods and design dilution control new technologies and metallurgical processing

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  • Narrow Vein Mining Risk Geology

    2/17/2016· Narrow Vein Mining Risk Geology discusses the importance of understanding the risks associated with the modelling and estimation of narrow veins and what measures should be taken to mitigate

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  • Narrow vein minimum dilution case study

    AMC has conducted numerous studies to reduce dilution for mechanized narrow vein (NV) mining methods in operating mines Methods have included longhole open stoping (LHOS) and mechanized cut and fill (CAF) Dilution can be classed as planned or unplanned Planned dilution

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  • MECHANISING NARROW VEIN MINING

    4/10/2017· MECHANISING NARROW VEIN MINING April 10 2017 Development Mining Exploration Drilling Production Drilling RIG PROVES ITSELF IN MECHANISING NARROW VEIN MINING In 2016 PYBAR acquired a number of unique rigs providing a strong competitive edge in the market

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  • Digging deeper Mining methods explained

    The underground mining methods we use include room and pillar narrow vein stoping and large scale mechanised mining Room and pillar mining is a style of mining where tunnels are driven in a chess board pattern with massive square pillars between them which are gradually cut away as the work proceeds We use this for mining coal

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  • Epithermal Gold Deposits Geology for Investors

    7/12/2013· Mining Techniques Historically epithermal gold has been mined by underground techniques as miners followed the narrow twisting veins from the surface outcrops far underground Modern mining techniques mean that today most epithermal deposits are mined using open cut pit techniques

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  • launches new narrow vein drills

    Mining and Rock Technology has launched its newest class of narrow size drills The 2711 model is aimed especially for mining ores in narrow veins less than two to three metres in length

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  • stopes for narrow vein vertical mining methods

    stopes for narrow vein vertical mining methods Designed specifically for use in narrow vein steeply dipping ore bodies DeswikASD quickly generates detailed stope shapes that are traditionally designed manually Working from a geological block model the tool automates the process of generating sectional slices through the ore body

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  • Reducing waste rock dilution in narrow vein

    The paper describes effective technological ways of reducing waste rock dilution using the basis of the practical conditions of mining narrow veins in tungsten mines in China and examines the economic aspects of mines in relation to waste rock dilution and the causes of ore dilution

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  • Narrow vein modelling and Mineral Resource

    Narrow veins are major sources of many commodities including gold silver tin tungsten coal uranium and sometimes copper lead and zinc Mining this narrow style of mineralization can be considered as relatively high risk not only due to the high cost of exploration and mining per unit of metal but also to the frequently limited size of the resource

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  • Narrow

    Narrow vein underground mining Klondex Mines customised the Maptek Vulcan toolbox using Lava scripting to create a short term modelling process for narrow vein mining freeing up time for other work Klondex Mines Ltd specialises in narrow vein gold and silver

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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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  • Narrow vein mining A challenge to the

    Kundana is one of Australia's most successful examples in mechanized mining of narrow vein deposits This particularly noteworthy in the Strzelecki deposit which dips at only some 50° has widths

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  • Equipment

    The Coeur dAlene mining district in is the oldest (76 years) and deepest mine in the district producing approximately 725 t/day (800 stpd) from narrow vertical lead zinc silver veins Cut and fill stoping is currently employed at This article describes the methods that Hecla Mining Co has employed during the past 50 years to

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  • Development of benchmark stoping widths for longhole

    Published by Maney Publishing (c) IOM Communications Ltd Development of benchmark stoping widths for longhole narrow vein stoping P Stewart*1 R Trueman2 and G Lyman2 In narrow vein mining it is often not possible to limit stope width to the vein width when utilising

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  • Narrow vein mining Komatsu Mining Corp

    10/12/2016· Joy Global's hard rock mining portfolio now contains a robust lineup of narrow vein equipment Read the full story

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