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long hole infusion ore mining method long

Assessment and Control of Ore Dilution in Long Hole

2008-1-18  The long hole mining method with delayed backfill was used to take advantage of steeply dipping tabular orebody geometry, and to optimize production rates and recovery. Table 1 Typical transverse stope dimensions, Bousquet #2 mine

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Description of mining methods (step by step)

The ore between each ore drive horizon is stoped using long-hole benching. Traditionally, Kundana has used the long-hole open stope benching, this is a simple retreat method which uses 10 m to 12 m (33 ft to 39 ft) holes drilled between the levels to break the ore leaving a void behind.

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Types of Mining Methods Sell Side Handbook

2018-3-11  Long-hole sublevel stoping, often referred to as sublevel open stoping and blast hole stoping is a commonly used method in large scale mining. It is a versatile and productive method that is primarily used for large ore bodies with a steep dip, regular shape, and defined ore bodies. It is used when the ore

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Mining Options Optimization: Open Pit to Underground

2015-9-10  From preliminary underground mining studies, a selective underground mining method known as long hole open stoping was identified as apotentially viable underground mining method. The production schedule for such a combined case requires that both mining options compete for the same reserve during optimization.

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Mandalay Resources Corporation Costerfield Mine

The mining method employed is long-hole stoping with cemented rock fill. Ore is accessed by a primary spiral ramp. Level spacing is at 10 m centers and horizontal development is advanced in a minimum of 1.8 m wide drives in both directions of the deposit. Levels are then mined out on retreat with long hole stopes drilled to a minimum width of approximately 1.5 m.

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Case Study Resue Mining with eDev Electronic Tunnelling

2011-9-2  Stawell Gold Mine (SGM) is an underground mining operation located in Victoria, Australia. The mining method employed is long hole retreat stoping, utilising up and down holes with artificial concrete pillars. Stawell is currently mining the Golden Gift and Magdala orebodies.

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Lecture 4: Underground Mining SlideShare

2011-11-2  6) Long-hole Stoping6.1) Introduction Long-hole stoping as the name suggests uses holes drilled by a production drill to a predetermined pattern as designed by a Mining Engineer. Long-hole stoping is a highly selective and productive method of mining Long-hole stoping can cater for varying ore

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Types of Underground Mining Method Comparison

2017-3-16  Longitudinal Back, Flat-Back Mining Method Long-Wall StopingmMining Method. After starting an overhand stope the shape in which the back is carried is often of prime importance. In A, Fig. 2, is illustrated the method of carrying a flat or longitudinal back (the term long

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Longhole Welcome to the Narrow-Vein Mining Project

Longhole. 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

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Copper Mining Process Operations Minto

2021-7-8  Minto performs underground mining using a long hole mining method. The long hole stopes are retreated from an extraction development drive with rib pillars left between stope lines for ground stability. Ore is extracted from the mine with 45-tonne haul trucks utilizing a 15% ramp to surface. The underground operations are currently producing 2

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Mandalay Resources Corporation Costerfield Mine

The mining method employed is long-hole stoping with cemented rock fill. Ore is accessed by a primary spiral ramp. Level spacing is at 10 m centers and horizontal development is advanced in a minimum of 1.8 m wide drives in both directions of the deposit. Levels are then mined out on retreat with long hole stopes drilled to a minimum width of

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Sekisovskoye Gold Mine Mining Technology

Long hole open stoping method with paste fill has been identified as the most efficient mining method for the underground operation as it reduces ore dilution, subsequently increasing the gold grade in the mined ore. Drilling will be performed using Atlas Copco boomer drilling rigs and other Russian and Chinese mining

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Case Study Resue Mining with eDev Electronic Tunnelling

2011-9-2  Stawell Gold Mine (SGM) is an underground mining operation located in Victoria, Australia. The mining method employed is long hole retreat stoping, utilising up and down holes with artificial concrete pillars. Stawell is currently mining the Golden Gift and Magdala orebodies.

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CSA Copper Mine Mining Technology Mining News

2021-6-11  The lenses are 90m long and 15m wide. Mining. Copper at CSA mine is extracted through the long hole open stopping (LHOS) method. Underground tunnels and open stopes of 30m height and 10m width are dug. The stopes are blasted and drilled to extract copper. The blasted ore is transported to an underground stockpile in trucks.

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Types of Underground Mining Method Comparison

2017-3-16  Longitudinal Back, Flat-Back Mining Method Long-Wall StopingmMining Method. After starting an overhand stope the shape in which the back is carried is often of prime importance. In A, Fig. 2, is illustrated the method of carrying a flat or longitudinal back (the term long

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Kirkland Lake Gold Our Business Canada Holt

Mining method and processing. Mining at Holt/Holloway is primarily conducted using Long Hole Stoping with cemented rock fill. A 1.2 km deep shaft provides skipping capacity of 1,500 tpd. Currently, the mining activities at Holt Mine are taking place in Zone 4 in the west, Zone 7

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Sublevel stoping..Underground mining methods

2014-10-22  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

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stoping mining method : definition of stoping mining

Stoping is the removal of the wanted ore from an underground mine leaving behind an open space known as a stope. Stoping is used when the country rock is sufficiently strong not to cave into the stope, although in most cases artificial support is also provided. As mining progresses the stope is often backfilled with tailings, or when needed for strength, a mixture of this material and cement.

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Copper Mining Process Operations Minto

2021-7-8  Minto performs underground mining using a long hole mining method. The long hole stopes are retreated from an extraction development drive with rib pillars left between stope lines for ground stability. Ore is extracted from the mine with 45-tonne haul trucks utilizing a 15% ramp to surface. The underground operations are currently producing 2

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Lecture 4: Underground Mining SlideShare

2011-11-2  6) Long-hole Stoping6.1) Introduction Long-hole stoping as the name suggests uses holes drilled by a production drill to a predetermined pattern as designed by a Mining Engineer. Long-hole stoping is a highly selective and productive method of mining Long-hole stoping can cater for varying ore

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Considerations for Sublevel Open Stoping OneMine

Sublevel stoping generally is a large-scale open stoping method. It sometimes is referred to as long-hole or blasthole stoping. This method usually is applied to strong ore bodies that require minimal support and are surrounded by strong country rock. The ore body should be fairly regular in shape and well-defined.

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Mining Operation PorgeraJV

Mining is done by convention long hole open stoping. Drives are developed along the strike of the lenses at 15m vertical intervals with long-hole stoping used to extract the ore between these levels. The voids generated by mining are back-filled with a

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Mining Options Optimization: Open Pit to Underground

2015-9-10  From preliminary underground mining studies, a selective underground mining method known as long hole open stoping was identified as apotentially viable underground mining method. The production schedule for such a combined case requires that both mining options compete for the same reserve during optimization.

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Chibuluma Copper Mines Metorex

Mining Chibuluma South Mine . Chibuluma South Mine is trackless and highly mechanised. The mining method employed is Long Hole Stoping with fill. Access to underground is through a portal. Production commenced at 10,000 tonnes of ore in

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CSA Copper Mine Mining Technology Mining News

2021-6-11  The lenses are 90m long and 15m wide. Mining. Copper at CSA mine is extracted through the long hole open stopping (LHOS) method. Underground tunnels and open stopes of 30m height and 10m width are dug. The stopes are blasted and drilled to extract copper. The blasted ore is transported to an underground stockpile in trucks.

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Fruta del Norte Gold Project, Zamora-Chinchipe

Mining and ore processing. The project will utilize selective underground mining method along with long-hole transverse stoping. The recovered ore will be processed in a 325,000oz per year capacity processing plant. Ore will be crushed in a jaw crusher and forwarded to a

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Kirkland Lake Gold Our Business Canada Holt

Mining method and processing. Mining at Holt/Holloway is primarily conducted using Long Hole Stoping with cemented rock fill. A 1.2 km deep shaft provides skipping capacity of 1,500 tpd. Currently, the mining activities at Holt Mine are taking place in Zone 4 in the west, Zone 7

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Chapter

2020-6-11  3) Sublevel stoping a method of stoping in which the ore is blasted by benching, ring drilling, or long hole; most of the ore is drawn off as it is blasted, leav­ ing an open stope. 4) Sublevel caving an induced caving method in which the ore is blasted by ring drilling from drifts; overlying rock is expected to cave as the ore is

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