Underground mining (hard rock) - Wikipedia

Selective mining methods. Cut and fill mining is a method of short-hole mining used in steeply dipping or irregular ore zones, in particular where the hanging wall limits the use of long-hole methods. The ore is mined in horizontal or slightly inclined slices, and then filled with waste rock, sand or tailings

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Sublevel caving - ScienceDirect

1. PRINCIPLES AND APPLICATION OF SUBLEVEL CAVING IN METALLIFEROUS MINING THERE is a wide selection of various underground mining methods which can be adapted to the local conditions and to the particular requirements of the orebody concerned and of the surrounding areas.

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Major Mines & Projects | Sunrise Dam Mine

Underground mining commenced in 2003 with a number of different mining methods being applied, depending on the style of mineralisation and grade of the geological domain. Mining is carried out by contractors. The primary mining method is bulk mechanised sub-level open stoping using stabilising pillars and waste back fill where possible.

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Description of mining methods (step by step) - nvp-pgf.org

Primary Mining Method Long-hole. 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 long-hole sub-level method is being tested in order to mechanize the mining operation.

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Major Mines & Projects | Finsch Mine

Sub-level caving Summary: The proposed mining method was dismissed as being impractical as a result of geotechnical and brow wear concerns, and it was suggested that an ‘incline cave’ mining concept be investigated.

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Definition of sublevel stoping - mindat.org glossary

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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Here are the Types of Underground Mining and Their ...

Feb 28, 2018· The method to be used for underground mining depends on the concentration of ore, strength of the surrounding rock, and the various risks involved. ScienceStruck explains what these methods are, with the applications of each one.

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Underground Mining Methods and Applications Production Headframe Hans Hamrin* 1.1 INTRODUCTION Ore is an economic concept. It is defined as a concentration of minerals that can be exploited and turned into a saleable product to generate a financially acceptable profit under existing economic conditions. The definition of ore calls for ...

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Underground Mining Methods Handbook - Mining Books

Excavation Design and Mining Methods in the 1100 Ore Body, Mount Isa Mine, Australia. Mining Below the Gabbro Sill, Premier Mine, Cullinan, South Africa. Sublevel Stoping at the Strassa Mine, Sweden. Sublevel Stoping of the EB Massive Reefs at Loraine Gold Mines, Ltd. No 3 Shaft. Vein Mining at LKAB, Malmberget, Sweden.

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Sublevel Caving: Underground Mine Design Flash ... - Koofers

Steps in Sublevel Caving: 1. Drifting the sublevels (up to 20 percent can be recovered during development) ... Advantages of Sublevel Caving: selective mining of weak- medium strength ore bodies in weak rock. small ore bodies can be mined. highly mechanized. flexible--can change to mechanized sublevel open stoping. productivity is reached quickly.

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Stoping - Wikipedia

Stull stoping is a form of stoping used in hardrock mining that uses systematic or random timbering ("stulls") placed between the foot and hanging wall of the vein. The method requires that the hanging wall and often the footwall be of competent rock as the stulls provide the only artificial support.

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ImplementingaProductionSchedule atLKAB’sKirunaMine

Figure 1: Depicted here in this sublevel caving operation are an ore pass extending vertically down to horizontal mining sublevels, access routes running the length ofthe ore body within a sublevel, and crosscuts drilled perpendicular to the access routes. Kiruna geometries are superimposed

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sublevel caving Archives - Newtrax Technologies Inc.

Dec 01, 2016· Sublevel Caving . Sublevel Caving is one of many different methods for underground hard rock mining. It is a large-scale mining method suitable for large ore bodies with a steep dip and a rock mass with a host rock in the hanging wall will fracture under controlled conditions.

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SECTION 10 SHRINKAGE METHODS Mike Turner Australian …

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 method is still used in a handful of non-mechanised mines in South America, Africa, Asia and Canada.

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Sublevel Caving Mining Method - Newtrax Technologies Inc.

Sublevel Caving . Sublevel Caving is one of many different methods for underground hard rock mining. It is a large-scale mining method suitable for large ore bodies with a steep dip and a rock mass with a host rock in the hanging wall will fracture under controlled conditions.

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

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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SubLevel Stoping - OneMine

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).

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Stoping Mining Methods - Metallurgist & Mineral Processing ...

What is sublevel stoping method of mining - , sublevel stoping is a mining method in which ore is blasted from different levels of elevation but is removed from one level at the bottom of the mine 【Live Chat】 sublevel caving mining method - miningbmw

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(PDF) Underground mining Methods - ResearchGate

Longwall Longwall in coal Longwall in Hard Rock Sublevel Caving Characteristics of the ore body and mining method Development Production Equipments Used Block Caving Introduction Historical ...

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Keeping up with caving - Redpath Mining | Mining ...

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

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Parameters influencing full scale sublevel caving material ...

Sublevel caving (SLC) is a mass mining method based upon the utilisation of gravity flow of blasted ore and caved waste rock [1]. The method functions on the principle that ore is fragmented by blasting, while the overlying host rock fractures and caves under the action of …

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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.

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Backfill Practices for Sublevel Stoping System | SpringerLink

Sublevel stoping mining methods are very popular in Canadian metal mines since they enable maximum ore recovery due to pillar-less mining. Sublevel stoping mining methods are generally employed to extract steeply dipping tabular ore deposits characterized by relatively long strikes and having various thicknesses.

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Sublevel caving - QueensMineDesignWiki

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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Sublevel definition and meaning | Collins English Dictionary

Sublevel definition: a level between other levels in a mine | Meaning, pronunciation, translations and examples ... mining. a level between other levels in a mine. Collins English ... Word Lover's Blog. Online Scrabble Checker. The Paul Noble Method. Trends of 'sublevel' Used Rarely. sublevel is in the lower 50% of commonly used words in the ...

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Sub Level Caving - YouTube

Mar 22, 2007· A method of underground mining operation. High Grade Gold Left In Old Mines & Finding Loads Of Vuggy Quartz Veins - Duration: 14:14. 911 Mining & Prospecting 1,000,980 views

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sub level stopping mining method ppt

sub level stopping mining method ppt Underground Mining Methods and Applications. the mineral deposit, mining technology, processing methods, and costs is .. normally, sublevels are used only within stoping areas where they are required for.

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(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 detonated, leaving open stope.

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Sublevel Open and Fill Stoping Method Used in the Hedong ...

The Hedong Gold Mine is located in the Yan(ai area, tihandong hroo%ill, e. China. It is an underground mine with an annual gold output of some 700 0(H) grams. The orebody is located on the edge of the Wanger Shan metamorphism zone, and the hangingwall of orebodies is thus defined by a …

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Sublevel caving | Britannica.com

Other articles where Sublevel caving is discussed: mining: Sublevel caving: This method owes the first part of its name to the fact that work is carried out on many intermediate levels (that is, sublevels) between the main levels. The second half of the name derives from the caving of the hanging wall and…

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Sub-level open stoping - QueensMineDesignWiki

Oct 22, 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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