Longitudinal Retreat Mining Method

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Longitudinal Retreat Mining Method

Effect of stope construction parameters on ore dilution in .

Effect of stope construction parameters on ore dilution in .

thesis is a case study of the Lapa Mine of Agnico Eagle Mines Limited, a gold mining operation situated in the Abitibi region of Quebec. The Lapa orebody is a narrow vein, steeply dipping deposit with varying width, and is extracted with longitudinal retreat mining method.

Lapa Mining Method - 26m Longitudinal Retreat AGNICO .

Lapa Mining Method - 26m Longitudinal Retreat AGNICO .

Lapa Mining Method - 26m Longitudinal Retreat AGNICO EAGLE 4.2m . Title: PowerPoint Presentation Author: George Dikho Created Date: 3/1/2013 10:26:46 AM

longitudinal retreat mining method

longitudinal retreat mining method

longitudinal retreat mining method. longitudinal retreat mining method Eagle Mine215 Кб This method provides the cost advantages of bulk mining . Get Price And Support Online; Eagle Mine Lundin Mining. Mine facilities and method The orebody is accessed from surface by decline mined . Mining Operations Eagle Mine is an underground

Lapa Mine ground control practices in extreme squeezing .

Lapa Mine ground control practices in extreme squeezing .

2.2 Mining method The primary mining method used at Lapa is longitudinal open stoping with cemented backfill (Figure 4). Sublevels are developed at 30 m intervals and the ore is removed between the sublevels using the long hole blasting technique in a longitudinal retreat configuration. Typical stope size is 12 m wide by 30 m high

ERG Easy Slot Master Video 3 - YouTube

ERG Easy Slot Master Video 3 - YouTube

Mar 23, 2014 · Longitudinal longhole retreat is a branch of the generic mining method known as sublevel stoping and often requires the development of a rise or slot prior to production blasting.

transverse sub level open stoping - ljmstaffing

transverse sub level open stoping - ljmstaffing

longitudinal retreat mining method - diebold-bau. Three mining methods including blind longitudinal retreat, transverse sub-level open stoping and longitudinal sub-level open stoping have been shortlisted to conduct mining at the project The depth and the thickness of the mine will enable the implementation of . Get in touch >>

Longitudinal Retreat Mining Method

Longitudinal Retreat Mining Method

longitudinal retreat mining method - rock crusher and mine solution projects in global Longitudinal longhole retreat - Centre for Excellence in Mining, From Queen''s University Mine Design Wiki Longitudinal longhole retreat is a branch of the generic mining method known as sublevel stoping For longitudinal retreat, Transverse longhole stoping . .

ITH Longhole Drill Rigs For Underground Mining —  .

ITH Longhole Drill Rigs For Underground Mining — .

in-the-hole (ITH) longhole drills are capable of drilling ø89-216 mm holes up to 100 meters in length using 3" to 8" ITH hammers in mechanized and automated underground mining operations, where the target is to maximize ore recovery and minimize dilution with drilling of production or service support holes accurately and according to the plan.

Lapa Mining Method - 26m Longitudinal Retreat AGNICO .

Lapa Mining Method - 26m Longitudinal Retreat AGNICO .

Lapa Mining Method - 26m Longitudinal Retreat AGNICO EAGLE 4.2m . Title: PowerPoint Presentation Author: George Dikho Created Date: 3/1/2013 10:26:46 AM

Mining method evaluation and dilution control in Kittilä mine

Mining method evaluation and dilution control in Kittilä mine

preliminary method selection with traditional mining method selection tools. This yielded several methods, which applicability for Kittilä mine was assessed by terms of safety, suitability, production, dilution & recovery and flexibility. Preliminary selection was followed by stope design, where numerical and empirical methods were used to

Longhole - Welcome to the Narrow-Vein Mining Project

Longhole - Welcome to the Narrow-Vein Mining Project

This method consists in a variety of chambers where the mine blocks are generally cut by sub-levels from which long holes are drilled in plans that are generally parallel. These boreholes allow to blast the block by successive vertical break. The broken ore is mucked out by drawpoints or by longitudinal retreat.

Alamos Gold Inc. - Mines and Projects - Producing Mines .

Alamos Gold Inc. - Mines and Projects - Producing Mines .

MINING AND PROCESSING. Island Gold's underground operations are accessed via a ramp system. The primary mining method is longitudinal retreat long-hole stoping. Ore is hauled by truck to the Kremzar mill located approximately 0.8 km from the portal of the ramp.

Mining – Tseau

Mining – Tseau

Initial plans are to use the longitudinal retreat long-hole mining method referred to as Avoca or Bench-and-Fill mining. Production levels are set every sixty or seventy-five meters according to the local vertical continuity, and mining sublevels are spaced at fifteen meters. Production is projected at 300 tons per day following a short ramp-up .

Agnico Eagle Oulu Mining Gold Explorer in the North

Agnico Eagle Oulu Mining Gold Explorer in the North

• Lapa hosts an underground mining operation accessed by a 1,369-metre-deep shaft. Two mining methods are used – longitudinal retreat with cemented backfill, and locally transverse open stoping with cemented backfill. The dilution rate for mining the reserves averages 71%. The production rate averages 1,700 tonnes/day.

Agnico Eagle Mines Limited - Operations & Development .

Agnico Eagle Mines Limited - Operations & Development .

The LaRonde mine extension allows access to even deeper ore at the lower part of the orebody. Two mining methods are used at LaRonde – longitudinal retreat with cemented rock or paste backfill, and transverse open stoping with cemented rock backfill, paste or unconsolidated backfill.

Obuasi Mine – Ghana

Obuasi Mine – Ghana

For this report only the Bottom-up Longitudinal Retreat Open Stoping method was analysed. Different variations of mining sequences was analysed consisting of a parallel or horizontal slice versus a diagonal or Christmas tree shape. MAP3D-SV is an elastic numerical program, which was used for the numerical analyses done for Obuasi Mine.

Major Mines & Projects | Loulo-Gounkoto Mine

Major Mines & Projects | Loulo-Gounkoto Mine

Three mining methods are used at the Yalea and Gara underground mines. They are long hole transverse open stoping; long hole longitudinal retreat open stoping; and stoping under rock fill (SURF). SURF mining is planned to be introduced in the weathered areas of Yalea South Upper.

Transverse longhole stoping - QueensMineDesignWiki

Transverse longhole stoping - QueensMineDesignWiki

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vrm vertical crater retreat

vrm vertical crater retreat

longitudinal retreat mining method - reapadm. Longitudinal longhole retreat - From Queen's University Mine Design Wiki Longitudinal longhole retreat is a branch of the generic mining method known as sublevel stoping. For longitudinal retreat the long axis of the stope is along (or parallel) to the strike of the orebody.

The Obuasi Mine – Longitudinal Retreat Mining Method .

The Obuasi Mine – Longitudinal Retreat Mining Method .

The Obuasi mine – longitudinal retreat mining method application and challenges, in Proceedings Narrow Vein Mining 2012, pp 59-70 (The Australasian Institute of Mining and Metallurgy: Melbourne). Related products. Member DiscountPDF. Life-of-Mine Conference 2018 – PDF 88.00. CollectionMember DiscountPDF.

longitudinal retreat mining methods | Sudbury Mining Solutions

longitudinal retreat mining methods | Sudbury Mining Solutions

Sudbury Mining Solutions Journal is printed quarterly -- March, June, September and December. Circulation includes distribution to mining executives, consultants, suppliers, distributors, government officials and opinion leaders across Canada and around the world.

TECHNICAL REPORT AND PRELIMINARY ECONOMIC .

TECHNICAL REPORT AND PRELIMINARY ECONOMIC .

technical report and preliminary economic assessment of the upper beaver gold-copper deposit kirkland lake, ontario, canada for queenston mining inc.

Musselwhite mine & mill - Canadian Mining JournalCanadian .

Musselwhite mine & mill - Canadian Mining JournalCanadian .

Jun 01, 2007 · Phase 4 mining began in the first half of 2005 and will continue at a rate of 659,000 t/y until 2011. Where mining widths are greater than 15.0 m, transverse stopes are developed. Where mining widths are less than 15.0 m, longitudinal retreat methods are employed. Production from the PQ zone began in September 2003 at a planned rate of 550 t/d .

STILL DRAFTING PROJECT REAL 2 - SlideShare

STILL DRAFTING PROJECT REAL 2 - SlideShare

Oct 29, 2015 · STILL DRAFTING PROJECT REAL 2 . vii LIST OF FIGURES Fig. Title Page 2.1 Map of Ghana Showing Obuasi 4 3.1 Longitudinal Retreat Mining Method 11 3.2 Transverse Open Stoping 12 3.3 Sublevel Caving 14 3.4 A Tunnel Face Showing Various Drill Holes 16 3.5 Face Mark of A Raise 17 3.6 Penetration Rate versus Rock Strength 21 3.7 Types of Supports 28 .

Vrm Vertical Crater Retreat

Vrm Vertical Crater Retreat

longitudinal retreat mining method - reapadm. Longitudinal longhole retreat - From Queen's University Mine Design Wiki Longitudinal longhole retreat is a branch of the generic mining method known as sublevel stoping. For longitudinal retreat the long axis of the stope is along (or parallel) to the strike of the orebody.

Waterberg PGM Project, Bushveld . - Mining Technology

Waterberg PGM Project, Bushveld . - Mining Technology

Three mining methods, including blind longitudinal retreat, transverse sub-level open stoping and longitudinal sub-level open stoping, have been shortlisted to conduct mining at the project. The depth and the thickness of the mine will enable the implementation of low-cost mechanised underground mining methods.

OSISKO DELIVERS POSITIVE PEA FOR WINDFALL PROJECT – Osisko

OSISKO DELIVERS POSITIVE PEA FOR WINDFALL PROJECT – Osisko

Jul 17, 2018 · The mining method selected is long-hole with longitudinal retreat on panels with minimum dimensions of 20 (length) x 20 (height) metres and minimum thicknesses of 3.5 to 4.0 metres. Mineralized material will be extracted using a fleet of 14 tonne load-haul-dumps ("LHDs") and 50 tonne haul trucks using a ramp at a rate of 2600 tpd. .

(PDF) Underground mining Methods - ResearchGate

(PDF) Underground mining Methods - ResearchGate

The essential geomechanical features of longwall and caving methods of mining were outlined in Chapter 12. Longwall and caving methods are distinguished from other mining methods by .

Types of Mining Methods | Sell Side Handbook

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.

Longitudinal longhole retreat - QueensMineDesignWiki

Longitudinal longhole retreat - QueensMineDesignWiki

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