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.
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
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 ...
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 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.
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 ...
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
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 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 , 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.
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.
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
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.
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.
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 .
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
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.
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.
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
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 ...
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.
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.
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