Sub Level Mining Method

Shortwall stoping versus sub-level longwall caving-retreat

Current longwall mining method applied in the mine The current method used in the above-mentioned mines is a sub-level longwall caving-retreat method. In this method, the face is formed perpendicular to the seam strike and implemented in the form of slices 7.5 m thick from the top downwards (Figure 1). Because the geotechnical properties of the floor clay are too weak, development drifts were

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Underground Mining Methods and Equipment

The first section gives an overview of underg round mining methods and practices as used commonly in underground mines, including classification of underground mining methods and brief explanations of the techniques of room-and-pillar mining, sublevel stoping, cut-and-fill, longwall mining, sublevel caving, and block caving. The second

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Caving Mining Method Classification and

03.08.2020· Caving mining method can be divided into single layer caving mining method, slicing and caving mining method, pillar sublevel mining caving method, sublevel caving mining method and block caving mining method. (1) Single Layer Caving Mining Method. It is mainly used to mine gently inclined ore beds with unstable roof rocks and generally less than 3m in thickness. The interstage

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sub level mining method - doidoi.be

sub level mining method. Mining Wikipedia. Mining is the extraction of valuable minerals or other geological materials from the earth, usually from an orebody, Get Price; Sublevel caving QueensMineDesignWiki Home CEMI. Sublevel Caving is one of the most advanced mining methods. This method is usually undertaken when mining the orebody through an open pit is no longer

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12. Mining methods and method selection

12.4 Underground mining method •Sublevel open stoping-Ore is fragmented in the stopeusing ring-drilled or long parallel blast holes, and moved to the drawpointsfor extraction.-Bigholeopen stopinguses longer blast holes with larger diameter of 140~165 mm: sublevel spacing increases from typically 40 m to 60 m.-Applied in massive or steeply dipping stratiformorebodieswith dip angle higher than

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Sublevel Stoping (version 2) | Australia Mining

04.12.2019· Sublevel Stoping (version 2) Sublevel Stoping (SLS) is often regarded as a mining method for steeply dipping deposits in competent rock. The method involves extracting the ore between the sublevels. The sublevele intervals varies from mine to mine. The operation includes long hole drilling and blasting from the drives.

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Sublevel Stoping Mining Method by Michico

04.12.2012· TERIMA KASIH Sublevel Stoping Mining Method Karakteristik Oleh: Evan Anindita Michico Yolanda Susan Indri Liani *Kelebihan : - Produktivitas Tinggi - Peledakan dapat dilakukan dalam skala besar - Dapat menggunakan alat-alat besar - Recovery Cukup Tinggi ( sekitar 75% - 90% ) -

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Avoca methods of mining - Basic Mining

04.08.2017· Avoca Method of mining is a variation of sublevel stoping method with the introduction of waste rockfill as backfill. This method is popular in high grade epithermal vein deposits where the strength and conditions of the walls of the open stopes are weak to moderate and require backfilling of waste rock to stabilise the walls, minimise the ore dilution and maximise the ore recovery. The stopes

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Shortwall stoping versus sub-level longwall caving-retreat

Current longwall mining method applied in the mine The current method used in the above-mentioned mines is a sub-level longwall caving-retreat method. In this method, the face is formed perpendicular to the seam strike and implemented in the form of slices 7.5 m thick from the top downwards (Figure 1). Because the geotechnical properties of the floor clay are too weak, development drifts were

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Sub level open stoping mining method for the Remaja type

methods have been studied and compared respectively as part of Vertical Crater Retreat and Sub Level Stoping mining methods. Actually the latter method is not strictly Sub Level Stoping, because in order to minimize the risk of collapse of the hanging wall, which dips at 65°, the major part of the depleted stope is back filled with the waste and could be called Sub Level Open Stoping. This

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