• Sub-level open stoping QueensMineDesignWiki

    BackgroundDesignDevelopmentEquipmentSupportSafetyEconomicsReferencesThis method is usually considered as an alternate to sublevel caving when a lower dilution method is needed and where the rock is fairly competent. The production for a mine using sublevel stoping can range from 15- 40 tons/employee-shift, while one stope can produce greater than 25000 tons per month.In general this method is fairly safe as the mining tends to retreat away from previously mined or unsuppSee more on minewiki.engineering.queensu.ca
  • Underground mining (hard rock) Wikipedia

    Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals, usually those containing metals such as ore containing gold, silver, iron, copper, zinc, nickel, tin and lead, but also involves using the same techniques for excavating ores of gems such as diamonds or rubies. Soft rock mining refers to excavation of softer minerals such as

  • Sublevel Stoping YouTube

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  • Types of Underground Mining Method Comparison

    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.

  • What is the difference between sublevel stopping and

    Jul 04, 2017· For sublevel stoping the ore body and walls should be strong enough to support open stoping. In this method, the ore is excavated in open stopes, retreating from one end of the stope toward the other. The orebody is developed first by a series of

  • Shrinkage stoping QueensMineDesignWiki

    Shrinkage stoping is a mining method used for steeply dipping, narrower ore bodies with self supporting walls and ore. It is an overhand mining method that relies on broken ore being left in the stope to be used as the “working floor” and to support the walls.

  • Keeping up with caving Redpath Mining

    Sub-level caving is typically used where the orebody has a smaller footprint and/ or more competent rock mass that prevents the continuous caving required for a block cave. Blasting of the entire orebody is required to produce a production ore flow. As sub-level caving uses a ‘top down’ approach, it requires less upfront capital

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  • Sublevel open stopping assignment SlideShare

    Dec 16, 2014· Equipment Sublevel open stopping is a highly mechanized mining method utilizing a wide range of equipment for drilling and mucking. Typically production drilling is carried out by high-efficiency column and arm long hole drills or DTH drill rigs.

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  • Stoping Wikipedia

    Stoping is the process of extracting the desired ore or other mineral from an underground mine, leaving behind an open space known as a stope. Stoping is used when the country rock is sufficiently strong not to collapse into the stope, although in most cases artificial support is

  • Underground Mining Methods and Equipment

    UNESCO EOLSS SAMPLE CHAPTERS CIVIL ENGINEERING Vol. II Underground Mining Methods and Equipment S. Okubo and J. Yamatomi ©Encyclopedia of Life Support Systems (EOLSS) 2. Strength of the hanging wall, footwall, and ore body. 3. Economic value of the ore and grade distribution within the deposit.

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  • Stoping Wikipedia

    Stoping is the process of extracting the desired ore or other mineral from an underground mine, leaving behind an open space known as a stope. Stoping is used when the country rock is sufficiently strong not to collapse into the stope, although in most cases artificial support is

  • Mining Underground mining Britannica

    Mining Mining Underground mining: When any ore body lies a considerable distance below the surface, the amount of waste that has to be removed in order to uncover the ore through surface mining becomes prohibitive, and underground techniques must be considered. Counting against underground mining are the costs, which, for each ton of material mined, are much

  • Equipment Used For Sub Level Stopping

    Feb 28, 2018· Sub-level Open Stopping In this mining technique, a series of horizontal tunnels, or sub-levels, are excavated one above the other, to access different levels of a vertical ore deposit. At the bottom of the stope is a haulage tunnel, which is used to transport ore that collects at the bottom. Author: Akshay Chavan

  • 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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  • Mine Backfill MiningInfo

    Mine backfill is defined as the material or materials used to fill the cavities created by mining so as to establish and retain safe working conditions, economically. Recently, mine backfill is employed in strategies to reduce surface environmental impacts.

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  • SECTION 10 SHRINKAGE METHODS Mike Turner

    powered scrapers can be used in the stope to level off the broken ore. Shrinkage mining was a common stoping method prior to mechanised mining and the introduction of hydraulic fill. Sub-level stoping, cut and fill mining and sub-level caving have generally replaced shrinkage mining in Australia, Europe and Canada. The

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    No employer shall permit earthmoving or compacting equipment which has an obstructed view to the rear to be used in reverse gear unless the equipment has in operation a reverse signal alarm distinguishable from the surrounding noise level or an employee signals that it is safe to do so. 1926.602 (a) (10) Scissor points. Scissor points on all

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    Select Cancel or the X in the Add Job panel to stop adding jobs. Create sub-level jobs. Go to Jobs. Select to the right of the top-level job under which you want to place the sub-level job. Enter the sub-level job name, and if desired, a short code. Select Save or

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    powered scrapers can be used in the stope to level off the broken ore. Shrinkage mining was a common stoping method prior to mechanised mining and the introduction of hydraulic fill. Sub-level stoping, cut and fill mining and sub-level caving have generally replaced

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  • Here are the Types of Underground Mining and Their

    Sub-level Open Stopping In this mining technique, a series of horizontal tunnels, or sub-levels, are excavated one above the other, to access different levels of a vertical ore deposit. At the bottom of the stope is a haulage tunnel, which is used to transport ore that collects at the bottom.

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    stopes related to dip creates work areas with level floors. This allows trackless equipment to be used in drilling and mucking. Mining advances downward along the step room angle. Classic Room-and-Pillar Mining. In classic room-and- pillar mining, only a minimum of development work is required to prepare a flat-bedded deposit for mining.

  • Underground Mining methods Flashcards Quizlet

    • Conventional production cycle used • Personnel and equipment work from horizontal "sub levels" and ore is pushed open stopes • ore is removed from the stope through ore passes or chutes located at the bottom of the stope • once all sublevel have been mined, we move on the next

  • Reservation Sub-Levels Fallout Wiki Fandom

    The Reservation Sub-Levels were built similarly to a typical vault. This level is the main sleeping area for the sub-level ghouls. This level is clean, crisp, and very well taken care of, unlike the Reservation Town. The contrast between the two should be somewhat shocking. The floors of the.

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    Automation keeping underground workers safe at LKAB Malmberget Mine. work at LKAB’s Malmberget operation. In many ways this ore body could have been tailor-made for extraction by sub-level caving and, therefore, mechanical automation. In addition, all the equipment can be moved and re-used in another location if necessary.

  • SAP Tips and Tricks: Improve Efficiency with Equipment

    Jun 16, 2017· BOMs can also be created for functional locations, making it efficient to select materials. The second type of BOM is associated with a material type called an IBAU. This is a maintenance assembly list created by using individual parts tied to a higher-level material instead of an equipment master or functional location.