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SUB-LEVEL OPEN STOPING: DESIGN OF THE O640, L651 AND .

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SUB-LEVEL OPEN STOPING: DESIGN OF THE O640, L651 AND N659 SUB-LEVEL 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: M.ENG (MINING ENGINEERING) IN THE FACULTY OF ENGINEERING DEPARTMENT OF MINING UNIVERSITY .

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CN105822307A - Underhand sublevel open .

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The invention relates to the technical field of stoping methods and particularly relates to an underhand sublevel open stoping method. The underhand sublevel open stoping method comprises the following steps: firstly, arranging an ore block along the direction of an ore body and dividing the ore block into an ore room and an ore column; dividing the ore block into 3-5 sublevels in the vertical ...

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Underground mining (hard rock) - Wikipedia

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Shrinkage stoping is a short-hole mining method which is suitable for steeply dipping orebodies. This method is similar to cut and fill mining with the exception that after being blasted, broken ore is left in the stope where it is used to support the surrounding rock and as a platform from which to work.

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Digging deeper: Mining methods explained | .

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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 .

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Major Mines & Projects | Prominent Hill Mine

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Mining Methods. Sub-level stoping; Cemented backfill; Summary: The Prominent Hill Underground Mineral Resources are being mined successfully using sub-level open stoping (SLOS) with cemented fill (paste or CHF) for most stopes, with rock fill for selected secondary/tertiary stopes and a minimum mining width of five metres.

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Types of Mining Methods | Sell Side Handbook

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9-3-2018 · Shrinkage stoping is an overhand mining method that is used for self-supporting vertical ore bodies. In this method, ore is mined in horizontal slices, starting from the bottom to the top of the stope. The broken ore is left in the mined-out stope and serves as a support to the stope walls and a working platform for mining the ore above.

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Shrinkage Stope Mining, Mining Methods, .

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Shrinkage stoping is rather hard to mechanize; in addition, an important period may elapse amid the commencements of mining in the stope and the last withdrawal of all the broken ore. The solitary principal basis of tantalum mineral concentrates is the manufacture by Sons of Gwalia Ltd. from its Greenbushes and Wodgina mines in Western Australia.

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mining methods stoping - .

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Underground mining/stoping methods CRCnetBASE. Underground mining/stoping methods Stopes are the blocks of hidden wealth surround by an environment that is risky to men, machines and equipment. Inquire Now; Glossary of Mining Terms rocksandminerals. Abutment In coal mining, (1) the weight of the rocks above a narrow roadway is transferred ...

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Sublevel stoping..Underground mining methods

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Sublevel stoping..Underground 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 as to allow customization for the individual needs of course instructors.

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SECTION 10 SHRINKAGE METHODS Mike Turner Australian Mining ...

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Sub-level stoping, cut and fill mining and sub-level caving have generally replaced shrinkage mining in Australia, Europe and Canada. The method is still used in a handful of non-mechanised mines in South America, Africa, Asia and Canada. 10.1.1.1 Disadvantages The method is labour intensive and requires experience in such methods. The working

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SECTION 10 SHRINKAGE METHODS Mike Turner Australian Mining ...

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Sub-level stoping, cut and fill mining and sub-level caving have generally replaced shrinkage mining in Australia, Europe and Canada. The method is still used in a handful of non-mechanised mines in South America, Africa, Asia and Canada. 10.1.1.1 Disadvantages The method is labour intensive and requires experience in such methods. The working

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A long hole stoping system for mining narrow platinum reefs

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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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Stoping methods - Indian Copper Complex - .

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The mines and Method of stoping may not exist, But will remain in Indian Mining History and reference books. Mines Vocational Training Centre Malanjkhand Copper Project. N G Nair, Mining Engineer from Copper Mines in India - Mobile 09020264651

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(PDF) Underground mining Methods - ResearchGate

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Shrinkage stoping may be termed a " classic" mining method, having been perhaps the most popular mining method for mos t of the past century . It has largely been replaced by mechaniz ed ...

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Shrinkage stoping - QueensMineDesignWiki

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Author: Mike Neumann, Neumann Engineering and Mining Services Inc. (NEMS) Date: May 2010 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.

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Stoping, Cut and Fill and other underground .

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Stoping, Cut and Fill and other underground methods 3D mine scale model of open stoping showing mining induced displacements on a horizontal cutting plane BE specialises in application of advanced, multi-scale, discontinuum modelling tools to simulate open stope overbreak, access conditions, filling and induced seismicity.

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Definition of sublevel stoping - Mindat

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A mining method involving overhand, underhand, and shrinkage stoping. Its characteristic feature is the use of sublevels. The sublevels are worked simultaneously, the lowest on a given block being farthest advanced and the subs above following one another at short intervals. The uppermost sublevel underneath the cover is partly caved.

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Sublevel stoping..Underground mining methods

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22-10-2014 · Sublevel stoping..Underground 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 as to allow customization for the individual needs of course instructors.

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Stoping Mining Methods - Metallurgist & Mineral .

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Stoping Methods. A classification of stoping methods based upon method of support was adopted by the Mining Division of the Bureau of Mines in 1928. This classification has been used ever since as a basis for describing methods in its publications dealing with mining methods and costs and is as follows: Classification of stoping methods

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Effect of delayed backfill on open stope mining .

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Longhole mining methods such as Avoca or longhole retreat as practiced at the Musselwhite mine of Placer Dome employs extraction with the use of fill walls to provide support to the adjacent stope. Transverse open stoping also practiced at Musselwhite employs cemented rock .

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Types of Mining Methods | Sell Side Handbook

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9-3-2018 · Shrinkage stoping is an overhand mining method that is used for self-supporting vertical ore bodies. In this method, ore is mined in horizontal slices, starting from the bottom to the top of the stope. The broken ore is left in the mined-out stope and serves as a support to the stope walls and a working platform for mining the ore above.

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