sub level stopping mining method ppt

  • Sublevel stopingUnderground mining methods

      Sublevel stopingUnderground mining methods 1 Hassan Z Harraz [email protected] 2014 2015 This material is intended for use in lectures, presentations and as handouts to students, and is provided in Power point format so

  • (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

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  • Sublevel open stopping assignment SlideShare

      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

  • Sublevel open stoping QueensMineDesignWiki

    BackgroundDesignDevelopmentEquipmentSupportSafetyEconomicsReferencesSublevel open stoping is a highly mechanized mining method utilizing a wide range of equipment for drilling and mucking Typically production drilling is carried out by highefficiency column and arm longhole drills or DTH drill rigs These systems use electric drive instead of hydraulic and have high pressure pneumatic DTH hammers or rotary percussion drilling systems It is with recent advantages in drilling technology that these systems have revolutionized sublevel stoping operations Mucking may b
  • SUBLEVEL OPEN STOPING: DESIGN OF THE O640, L651

      SUBLEVEL OPEN STOPING: DESIGN OF THE O640, L651 AND N659 SUBLEVEL OPEN STOPES IN THE 3000 OREBODY OF THE MOUNT ISA COPPER MINES, QUEENSLAND, AUSTRALIA L SLOANE Presented in partial fulfilment of the requirements for the degree: MENG (MINING ENGINEERING) IN THE FACULTY OF ENGINEERING DEPARTMENT OF MINING

  • Lecture 4: Underground Mining SlideShare

      Lecture 4: Underground Mining 1 Hassan Z Harraz [email protected] 2010 2011 This material is intended for use in lectures, presentations and as handouts to students, and is provided in Power point format so

  • Sublevel caving QueensMineDesignWiki

    Ore Body CharacteristicsAdvantagesDisadvantagesMine DevelopmentGround SupportProduction RateEquipmentMaterial HandlingSublevel Caving LayoutSublevel Caving Safety A competent rock mass allows for more drilling and blasting within each stope This provides good fragmentation and leaves the caving above very coarse This results in blasted material finer than the cave, making distinction between ore and waste easier • Steeply dipping orebody: Keeps the low grade waste further away from the current draw points, keeps dilution low •Massive deposit: Need a large footprint to minimize dilutio在minewikiengineeringqueensuca上查看更多信息
  • Types of Underground Mining Method Comparison

      Underhand Stoping Mining Method The method of underhand stoping in which the ore is drawn to the level above (B, Fig 1), is called Cornish stoping It finds application only when it is necessary to mine a lens of good ore below a level and it is

  • Mining ppt 2014 SlideShare

      Mining ppt 2014 1 Presented by : Ajoy Saikia Department of Earth Environmental Science KSKV KACHCHH UNIVERSITY2014 2 Mining is the process of extracting minerals like gold, silver, copper, nickel and uranium (metallic) and salt,

  • A long hole stoping system for mining narrow platinum

      A long hole stoping system for mining narrow platinum reefs Advantages of this mining method It allows for a low safety and health risk as well as improved working environment Physical work is reduced and it is easier to motivate the workforce Another advantage is the improvement in grade due to better control of dilution, as

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  • Sublevel open stopping assignment SlideShare

      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

  • SubLevel Stoping Introduction to Sublevel Stoping

    INTRODUCTION The sublevel stoping mining method is usually applied to a relatively steeply dipping, competent ore body, surrounded by competent wall rock Ore is produced by drilling and blasting longholes, which can range from 50 mm (2 in) to 200 mm (7% in) diam, with lengths up to 90 m (300 ft)

  • SUBLEVEL OPEN STOPING: DESIGN OF THE O640, L651

      SUBLEVEL OPEN STOPING: DESIGN OF THE O640, L651 AND N659 SUBLEVEL OPEN STOPES IN THE 3000 OREBODY OF THE MOUNT ISA COPPER MINES, QUEENSLAND, AUSTRALIA L SLOANE Presented in partial fulfilment of the requirements for the degree: MENG (MINING ENGINEERING) IN THE FACULTY OF ENGINEERING DEPARTMENT OF MINING

  • SECTION 10 SHRINKAGE METHODS Mike Turner

      Sublevel stoping, cut and fill mining and sublevel caving have generally replaced shrinkage mining in Australia, Europe and Canada The method is still used in a handful of nonmechanised mines in South America, Africa, Asia and Canada 10111 Disadvantages The method is labour intensive and requires experience in such methods The working

  • A long hole stoping system for mining narrow platinum

      A long hole stoping system for mining narrow platinum reefs Advantages of this mining method It allows for a low safety and health risk as well as improved working environment Physical work is reduced and it is easier to motivate the workforce Another advantage is the improvement in grade due to better control of dilution, as

  • Types of Underground Mining Method Comparison

      Underhand Stoping Mining Method The method of underhand stoping in which the ore is drawn to the level above (B, Fig 1), is called Cornish stoping It finds application only when it is necessary to mine a lens of good ore below a level and it is

  • Keeping up with caving Redpath Mining

      Sublevel caving also allows for a slightly more selective extraction of the orebody than is attainable through block or panel caving Production rates achieved in sublevel caving operations are typically lower than for block caves but higher than for stoping methods” CAVING requIremeNts Caving is a nonselective, bulk mining method

  • Description of mining methods (step by step)

    Primary Mining Method Longhole Information The gently dipping veins (average of 40 degrees) represent the singularity of this mine In addition to the gently dipping, the vein is cut by several faults, and consequently is discontinuous The retreating longhole sublevel method is being tested in order to mechanize the mining operation

  • (PDF) Underground mining Methods ResearchGate

    Underground Mining Methods Soft rock Mining Methods Blast mining Shortwall mining Coal Skimming (or Sink and Fl oat) method Hard rock Mining Methods Stoping 1) Room and pillar 2) Bench and

  • Design of Surface Mine Haulage Roads A Manual

      developed test procedures and minimum stopping distance criteria for several weight categories of large, off highway, truck’s SAE recommended practice J166 delineates the following values as maximum permissible service brake stopping distances from an initial velocity of 20 mph, on a dry, level, clean concrete surface:

  • Considerations for Sublevel Open Stoping OneMine

    Sublevel stoping generally is a largescale open stoping method It sometimes is referred to as longhole or blasthole stoping This method usually is applied to strong ore bodies that require minimal support and are surrounded by strong country rock The ore body should be fairly regular in shape and welldefined

  • Sublevel stoping Article about sublevel stoping by

    sublevel stoping [ ¦səb′levəl ′stōpiŋ] (mining engineering) A mining method involving overhand, underhand, and shrinkage stoping; the characteristic feature is the use of sublevels which are worked simultaneously, the lowest on a given block being farthest advanced and the sublevels above following one another at short intervals

  • Description of mining methods (step by step)

    Primary Mining Method Longhole Information The gently dipping veins (average of 40 degrees) represent the singularity of this mine In addition to the gently dipping, the vein is cut by several faults, and consequently is discontinuous The retreating longhole sublevel method is being tested in order to mechanize the mining operation

  • UFRGS

      downward from one level to another level or from the surface to a level (compare raise) 13 MINING METHODS 131 Introduction Once an ore body has been probed and outlined and sufficient information has been collected to warrant further analysis, the important process of selecting the most appropriate method or methods of mining can begin

  • Keeping up with caving Redpath Mining

      Sublevel caving also allows for a slightly more selective extraction of the orebody than is attainable through block or panel caving Production rates achieved in sublevel caving operations are typically lower than for block caves but higher than for stoping methods” CAVING requIremeNts Caving is a nonselective, bulk mining method

  • Mining Blasthole stoping Britannica

    Mining massive deposits Several of the methods described above (eg, blasthole stoping, sublevel caving) can be applied to the extraction of massive deposits, but the method specifically developed for such deposits is called panel/block cavingIt is used

  • Design of Surface Mine Haulage Roads A Manual

      developed test procedures and minimum stopping distance criteria for several weight categories of large, off highway, truck’s SAE recommended practice J166 delineates the following values as maximum permissible service brake stopping distances from an initial velocity of 20 mph, on a dry, level, clean concrete surface:

  • (PDF) Mining Methods: Part ISurface mining

    It is a method that is generally applied on a large scale with low mining costs and high productivity and that has minimum land degradation [16, 17] In Jordan, strip is used for the extraction of

  • 10 Different Types of Mining Operations and Mines –

    2 天前  A method of shorthole mining, cutandfill mining is used in irregular or steeply dipping ore zones, especially where the hanging wall limits the use of longheld methods The ore is mined either in slightly inclined or horizontal slices then it is filled with sand,

  • Block caving QueensMineDesignWiki

      Block caving is an underground mining method that uses gravity to exploit massive, steeply dipping ore bodies located at depth These ore bodies are generally low grade in nature and are too deep to be extracted through open pit mining The

  • Mining Blasthole stoping Britannica

    Mining massive deposits Several of the methods described above (eg, blasthole stoping, sublevel caving) can be applied to the extraction of massive deposits, but the method specifically developed for such deposits is called panel/block cavingIt is used

  • Design of Surface Mine Haulage Roads A Manual

      developed test procedures and minimum stopping distance criteria for several weight categories of large, off highway, truck’s SAE recommended practice J166 delineates the following values as maximum permissible service brake stopping distances from an initial velocity of 20 mph, on a dry, level, clean concrete surface:

  • Sequential Pattern Mining gatechedu

      Mining • GSP (Generalized Sequential Pattern) mining algorithm • Outline of the method – Initially, every item in DB is a candidate of length1 – for each level (ie, sequences of lengthk) do • scan database to collect support count for each candidate sequence • generate candidate length(k+1) sequences from lengthk

  • Stoping mining Britannica

    Stoping, in mining engineering, the opening of large underground rooms, or stopes, by the excavation of oreStoping is practiced in underground mineral mining when the surrounding rock is strong enough to permit the drilling, blasting, and removal of ore without cavingIn mines where the rock requires no artificial support, the operation is known as open stoping

  • (PDF) Mining Methods: Part ISurface mining

    It is a method that is generally applied on a large scale with low mining costs and high productivity and that has minimum land degradation [16, 17] In Jordan, strip is used for the extraction of

  • Methods to Improve Mine Ventilation System Efficiency

      a stopping with access mandoor Airflow through the shop battery charging station was isolated and sent directly out of the mine as required by state law, utilizing 47 m 3 /s (10,000 cfm) The existing shop access door was opened to let intake air flow through the shop, effectively reversing airflow direction, then joining the main intake split

  • 10 Different Types of Mining Operations and Mines –

    2 天前  A method of shorthole mining, cutandfill mining is used in irregular or steeply dipping ore zones, especially where the hanging wall limits the use of longheld methods The ore is mined either in slightly inclined or horizontal slices then it is filled with sand,

  • Mining Methods: Block Caving Geology for Investors

      Block (gravity) caving is a bulk underground mining method, which allows large lowgrade deposits to be mined underground This method involves undermining the orebody to make it collapse under its own weight into a series of chambers from which

  • Chapter 1 MINING TIME SERIES DATA

      bolic mappings This chapter gives a highlevel survey of time series data mining tasks, with an emphasis on time series representations Keywords: Data Mining, Time Series, Representations, Classification, Clustering, Time Series Similarity Measures 1 Introduction Time series data accounts for an increasingly large fraction of the world’s

  • Hard Rock Miner's Handbook

      Mining industry response to the book continues to be incredible Thanks in large part to the efforts by John Chadwick of the Mining Journal, infomine, and many other members of the mining community, the Hard Rock Miner’s Handbook has been distributed to over 113 countries worldwide Web hits and downloads continue as students and