longitudinal retreat mining method

longitudinal retreat mining method

longitudinal retreat mining method

Longitudinal longhole retreat - QueensMineDesignWiki

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.

longitudinal retreat mining method -

Eagle Mine215 Кб. This method provides the cost advantages of bulk mining, while maintaining a degree of selectivity and operational flexibility. The majority of the stopes will be mined as transverse bench and fill stopes, with some thinner thickness zones of the orebody mined as longitudinal retreat stopes.

gold mining longitudinal -

Longitudinal longhole retreat QueensMineDesignWiki. 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. Get Price Adaptation of Bayesian Data Mining Algorithms to

The AusIMM - Publications

Nsarko, F and Owusu-Mensah, F, 2012. 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).

Longitudinal Retreat Mining Method - uniqueevent

longitudinal retreat mining method - longitudinal retreat mining method. longitudinal retreat mining method Eagle Mine215 Кб This method provides the cost advantages of bulk mining

Longitudinal Retreat Mining Method - cz-eu.eu

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 ...

longitudinal retreat mining method -

A retreat transverse/longitudinal long hole stoping method with post backfill was ... mine, the geology of the deposit, the mining method, backfilling, ground... Chat Online Effect of delayed backfill on open stope mining methods - UBC ...

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.

Transverse longhole stoping - QueensMineDesignWiki

Transverse Longhole Stoping is a popular large scale underground mining method known for its ability to simplify stope sequencing. It is an open stoping method and is very similar to sub-level open stoping, Longitudinal longhole retreat, and blast hole stoping.

Major Mines Projects Perkoa Mine

Longitudinal bottom-up stoping has been used above 190 level. Due to the orebody width and mine sequencing, stopes between the 190 level and the 280 level are mined using the transverse method with primary and secondary stopes, with some longitudinal retreat mining occurring at the extremities of the orebody. Most of the primary stopes above ...

Major Mines Projects Island Gold Expansion Project

Of all the methods tested since mining activities commenced at the Island Gold Mine, the longitudinal long hole retreat mining method is the most productive and least costly, and is more commonly known as the Modified Avoca Mining Method.

Modern Practices for the Design and Planning of ...

2014-5-20  Modern Practices for the Design and Planning of Underground Mines Rob McGill Head of Mining WorleyParsonsTWP . ... Mining Method Selection Common Methods • Block Cave • Sub-level cave ... Longitudinal Retreat . Existing mining Existing infrastructure Different colours

Endeavor Mining Cotdvour - justdifferentevents.nl

longitudinal retreat mining method – Grinding Mill China . sublevel open stoping in south african gold mines . endeavour mining cotdvour longitudinal retreat mining method what is the process of mining galena . sublevel open stoping in south african gold mines.

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.

longitudinal retreat mining method -

A retreat transverse/longitudinal long hole stoping method with post backfill was developed utilizing trackless mining , mine, the geology of the deposit, the mining method, backfilling, ground support, ventilation and dewatenng, ore haulage.

longitudinal retreat mining method -

Retreat mining - Wikipedia, the free encyclopedia Retreat mining is a term used to reference the final phase of an underground mining technique known as room and pillar mining. This involves excavating a

longitudinal retreat mining method - diebold-bau.eu

longitudinal retreat mining method , longitudinal retreat mining methodRetreat mining Wikipedia the free encyclopedia Retreat mining is a term used to reference Get Price>>Design and Application of Sublevel Stoping Methods . More. retreat mining method - charitymusicinfo.

Effect of stope construction parameters on ore dilution in ...

2013-6-12  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.

17th International Mining Congress and Exhibition of ...

2009-9-17  degrees. A retreat transverse/longitudinal long hole stoping method with post backfill was developed utilizing trackless mining equipment. CBI has been able to achieve low mining costs and high productivity using this mining system. This paper will briefly review the Çayeli mine in general. Specifically, a brief history of the

Underground mining methods(Hans Fernberg )_图文_百度文库

2011-5-15  Shrinkage stoping c. Vertical retreat mining d. Sub level caving e. Block caving f. Cut and fill 2. Flat orebodies a. Room and pillar b. ... Sub Level Caving Longitudinal retreat ...

longitudinal retreat mining methods Sudbury

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.

Choice of Method - Welcome to the Narrow-Vein

The mining method mostly used is a transverse primary and secondary longhole method. Usually, the development is done two years in advance of the production schedule. Therefore, when narrower areas are encountered in these sectors, the mining method generally used to recover these stopes is the longhole retreat method.

mining method retreat - perkinspreschool

Factors influencing overbreak in narrow vein longitudinal retreat . ... Oct 20, 2009 Vertical crater retreat is a beneficial mining method because it reduces the cost of mining orebodies that are wide and steep. It also eliminates. Contact Us. Ground control monitoring of retreat roomandpillar mine in .

ct.ufrgs.br

2009-12-7  Underground Mining Methods and Applications Production Headframe Hans Hamrin* 1.1 INTRODUCTION Ore is an economic concept. It is defined as a concentration of ... important process of selecting the most appropriate method or methods of mining can begin. At this stage, the selection is preliminary, serving only as the basis for a project layout and

define retreat mining - platformlrwageningen.nl

longitudinal retreat mining method - Removing support during retreat mining can lead to roof falls, so the pillars are removed in the opposite direction from which the mine advanced: hence the term "retreat mining."Surface-mining methods include area, contour, mountaintop removal, and auger mining.

longitudinal retreat mining method - smoothfab.co.za

137 Vertical Crater Retreat Vertical crater retreat (VCR) mining (Figures 114, 115, and 116) is a method originally developed by the Canadian mining company INCO Today, VCR is an established mining method used byfor the .

Lapa Mining Method - 26m Longitudinal Retreat AGNICO

2016-12-12  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

vertical crater retreat mining method - postcatcher

vertical crater retreat mining method – Grinding Mill Vertical Crater Retreat Stoping as Applied at the Homestake, 28 Jul 2012, Therefore, the feasibility of ... 16.1 LONGHOLE LONGITUDINAL RETREAT MINING METHOD The mining This mine utilised an early version of the vertical crater retreat mining method that was.

longitudinal retreat mining method - padmahotel

longitudinal retreat mining method – Grinding Mill China. الملح غسل الناقل. stopes to a longitudinal retreat method continu The change in mining method is in response to the ore body decreasing in dip and ... Stoping - Wikipedia.

Vertical crater retreat mining in the Sudbury Basin ...

Faced with rising costs and lower metal prices, several Ontario base metal sulphide mines have changed their method of mining to vertical crater retreat mining. This is a bulk mining method that utilizes large diameter holes and mines successive cuts remotely by blasting and

longitudinal retreat mining method - padmahotel

longitudinal retreat mining method – Grinding Mill China. الملح غسل الناقل. stopes to a longitudinal retreat method continu The change in mining method is in response to the ore body decreasing in dip and ... Stoping - Wikipedia.

longitudinal retreat mining method Mining World

Retreat mining - Wikipedia, the free encyclopedia . Retreat mining is a term used to reference the final phase of an underground mining ... Retreat mining is the term commonly referred to as the mining method...

Effect of Stope Construction Parameters on Ore

Figure 3.3.6 Combination of Eureka and the Primary/Secondary mining methods The longitudinal retreat mining method is cost effective where significant savings are achieved by the reduced developments in the host rock. it is filled with cemented rock backfill.4 based on 12m width and 34m height as is illustrated in Figure 3. with delayed ...

vertical crater retreat mining method - postcatcher

A new model for mining method T selection of mineral. Mining method selection is a critical point and a strategic issue in the mining engineering vertical crater retreat mining (VCR), strip mining and novel

US3712677A - Mining method - Google Patents

A chamber mining technique whereby a series of horizontal slopes are formed between haulage and bleeder entries. Upon completion of a crosscut, the top and sides are drilled and blasted in a retreat operation and the broken ore is hauled out.

Types of Mining Methods Sell Side Handbook

Selecting a Mining Method. Selecting which mining method to use is one of the important decisions a mining company has to make. The mining method selected should maximize cost recovery and profitability of operations, minimize ore dilution, and permit the most efficient removal of ore.

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.

Mining method evaluation and dilution control in Kittilä

2014-6-11  underground mining method was defined during the feasibility study with limited information. With the experience from the underground mining and more rock mechanical and geological data, this thesis was conducted to study if there could be more cost effective method for mining the ore and how to reduce the dilution.

TECHNICAL REPORT AND PRELIMINARY ECONOMIC

2013-4-12  technical report and preliminary economic assessment of the upper beaver gold-copper deposit kirkland lake, ontario, canada for queenston mining inc.

Alloy Crusher Structure - art4u2.be

Owns abundant experience skilled technology in producing high manganese steel, high chromium cast iron, alloy steel, carbon steel, heat-resistant steel and other castings. Products widely used in mining, cement, metallurgical, construction, metal recycling, engineering and other aggregate industries. Get