block caving production and mass mining

Block Caving Production And Mass Mining

Block Caving - Production and Mass Mining

Underground mass mining methods present several geotechnical challenges and risks inherent with block cave mining environments. Underground mining methods such as block, panel, and sub-level caving continue to be the primary choice for deeply situated massive orebodies, due to the high production rates and low operating costs involved.

Block caving: A new mining method arises | …

Block caving is an underground hard rock mining method that involves undermining an ore body, allowing it to progressively collapse under its own weight. It is the underground version of open pit mining. In block caving, a large section of rock is undercut, creating an artificial cavern that fills with its own rubble as it collapses. This broken ore falls into a pre-constructed series of ...

Block caving - QueensMineDesignWiki

Block caving is an underground mining method that uses gravity to exploit massive, steeply dipping ore bodies located at depth. These ore bodies are generally low grade in nature and are too deep to be extracted through open pit mining. The technique is commonly used to extract low grade copper, copper-gold, iron and molybdenum ores although there are other applications. Due to the low cost ...

mining and mines: Block Caving

Block caving is an inexpensive bulk mining method where the ore is drawn by gravity and which is suitable for ore bodies which are low grade and are consistent in their grades. Depending on how the ore is broken there are three block caving systems 1) The Grizzly system for fine material, 2) the slusher system for coarser material and 3) the LHD system for very coarse material. Full gravity ...

Block Caving – A Viable Alternative? | Golder

Block cave mining is an underground mass mining method that allows for the bulk extraction of large, relatively lower grade, ore deposits with substantial vertical dimension. In block caving, a large section of ore is initially undercut by drilling and blasting, creating a large unsupported roof that will start to collapse under its own weight and instability. The broken ore then breaks apart ...

Block Caving - groundtruthtrekking.org

Block caving is attractive because it permits very large volumes of ore to be extracted relatively cheaply, increasing production and making lower grade ores economical to mine. Although still more costly than surface mining due to the inherent difficulty of underground operations, block caving is the only underground mining technique that achieves production rates equivalent to surface mining ...

The Evolution of Block Caving Technology - …

The technology changes in the unit operations are described and the drivers for these changes examined.CITATION:Weston, A J, 2016. The evolution of block caving technology, in Proceedings Seventh International Conference and Exhibition on Mass Mining (MassMin 2016), pp 265–274 (The Australasian Institute of Mining and Metallurgy: Melbourne).

Block Caving - oraee.net

Selective mining is perhaps more irrelevant to block caving than any other underground mining method. It is sometimes thought that the draw points providing low- grade ore can be closed earlier. This is not advisable since an important consideration in block caving the progress of the cave upwards. This can only be achieved by drawing ore from the bottom of the block. Some dilution from the ...

Keeping up with caving - REDPATH MINING

oth surface and underground mass mining methods have generated increasing interest in recent years, as mining companies look to exploit large orebodies faster and more economically. Underground mining methods such as block, panel and sub-level caving continue to be the premier choice for deeply situated massive orebodies, thanks to the high potential production rates and low operating costs ...

Sandras Cave Mining Handbook - Mining and Blasting

cave mining handbook page 1 of 138 contents page 1.0 introduction 2 2.0 geological investigations 4 3.0 rock mass classification 9 4.0 geotechnical investigations 11 5.0 mining limits 14 6.0 caveability 16 7.0 air blasts 26 8.0 rockbursts 29 9.0 mud flow & water 33 10.0 primary fragmentation 39 11.0 secondary fragmentation 42 12.0 drawpoint / drawzone spacing 45 13.0 undercutting 48 14.0 ore ...

Block caving - Canadian Mining JournalCanadian …

Block cave mining is an underground mass mining method that allows for the bulk extraction of large, relatively lower- grade ore deposits with substantial vertical dimension. In block caving, a large section of ore is initially undercut by drilling and blasting, creating a large unsupported roof that will start to collapse under its own weight and instability, The broken ore then breaks apart ...

Underground mining (hard rock) - Wikipedia

Development mining vs. production mining. There are two principal phases of underground mining: development mining and production mining. Development mining is composed of excavation almost entirely in (non-valuable) waste rock in order to gain access to the orebody. There are six steps in development mining: remove previously blasted material (muck out round), scaling (removing any …

block caving - YouTube

25.11.2012 · draft animation on block caving to be finalised. WORLDS BEST TREE FELLING TUTORIAL! Way more information than you ever wanted on how to fell a tree!

Block Caving Cu-Au Porphyry - SRK Consulting

Cave Mining Cu-Au Porphyry. There are over 45 cave mining projects in various stages of studies and development around the world. Cave mining methods will be the underground method of choice in the future. It is only relatively recent that this mass mining method, despite 70 years of use, has begun proving its potential.

THE OPTIMAL BLOCK SIZE IN THE BLOCK CAVING MINING …

Block-caving, Cavability, Block size, Length and width of the block, Optimal block size in block caving INTRODUCTION In classification of underground mining methods, caving methods are regarded as high production methods. These techniques are usually very costly and need great preparation. However, the high

Block Caving Production - YouTube

18.10.2018 · Block Caving Production using Virtual Reality. This video is unavailable. Watch Queue Queue

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