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Block caving is a proven mining method using advanced technologies. Here''s how it works. Ore, rock containing economically recoverable copper, is extracted from the bottom of the ore body. A void, or cave, is then created. Ore above the void breaks up due to gravity and falls into the cave.
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 ...
Sublevel Caving . Sublevel Caving is one of many different methods for underground hard rock mining. It is a largescale mining method suitable for large ore bodies with a steep dip and a rock mass with a host rock in the hanging wall will fracture under controlled conditions.
Initial capital investment for the mining methods ranged from 77,200,000 for chamber and pillar, to 122,872,000 for block caving, using LHD''s. Mining costs, including all direct, indirect and ...
May 01, 2016· Students (in order of appearance): * Sergio Godoy. * María José Latorre. * Verónica Lagos. Module: General english II. Professor: Camilo Suarez. Section: 3403 ...
This first comprehensive block caving publication was coauthored by several industry experts, including Dr. Alan Guest and Jarek Jakubec of SRK Consulting (Canada) Inc. Unfortunately, the distribution of this publication was not widely available. Meanwhile the demand for practical guidelines on cave mining was increasing as new projects developed.
Feb 10, 2018· Block Caving Mining Method Black Diamond Drilling Services Australia PTY LTD. ... Newcrest''s Cave Mining Vision Duration: 3:58. Newcrest Mining Recommended for you.
Jan 12, 2015· An interesting video showing the Block Caving mining process. BTI makes an ANFO Loader, Emulsion Loader, Shotcrete and Rockbreaker System like what is depicted in the animation.
Block Cave Mining Techniques. The most commonly used cave mining technique is block caving. Block caving is a largescale mining method that is particularly useful for mining lowgrade or disseminated ore bodies which are at too great a depth to be exploited through opencast mining.
This sequence of mining is no longer widely used. Today most mines use a panel system, mining the panels sequentially or by establishing a large production area and gradually moving it forward as the first area caved becomes exhausted. The term ''block caving'' is used for all types of gravity caving methods.
Dec 01, 2018· Block cave mining is the only underground method that can offer comparable open pit production rates and operating costs. For new developments, block cave mining offers the further advantage of a smaller surface footprint with significantly less waste disposal requirements.
Block caving is being looked to as one method of bulk mining to access these ores, as it is recognised as one of the most economic underground mass mining methods to extract deep, low grade ...
Oct 23, 2014· Caving Underground Mining Methods (longwall, Sublevel caving, Block caving) 1. This material is intended for use in lectures, presentations and as handouts to students, and is provided in Power point format so as to allow customization for the individual needs of course instructors.
In underground mining, block caving is the only method with the costs comparable to surface mining methods, especially open pit mining. A switch from open pit mining to block caving mining could ...
Caving Methods of Mining. There are three distinctive methods of working large deposits that involve, in some way, the factor of caving. Slightly different names are in use, but those that are simple as well as descriptive are top slicing, sublevel caving, and block caving.
Block caving is employed principally for mining lowgrade ores where the inevitable loss of some ore and some dilution with capping and wall rock are permissible and where mining must be done on a large scale and at a lower cost than can be obtained by the use of supportedstope or other selective mining methods.
Jul 25, 2018· Block caving is a new alternative method of developing new mines or extending the operation of open pits. 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.
rate of these methods, make them costeffective ones. The Block Caving method is an example of these methods, which is similar to surface mining methods in terms of production, in that the cost of production is low. Block caving is described by Laubscher (1994) as the lowest cost underground mining method provided
Block caving. Cave mining (both block caving and sublevel caving), which is currently used at Petra''s underground mines in South Africa is a wellestablished and safe mechanised mining method that was first introduced at Kimberley, South Africa in 1951.
Nov 26, 2012· draft animation on block caving to be finalised. ... Block Caving Mining Method Duration: 3:17. Black Diamond Drilling Services Australia PTY LTD 21,015 views.
Block caving is a gravitybased underground mining method that involves breaking up the rock mass located at depth into pieces. This method is particularly suitable for lowgrade minerals or with disseminated mineralization.
depth which would not support a more expensive mining method. Cave mining methods are becoming more popular due to relatively higher metal prices, projected supply and demand forecasts, and a lower discovery rate of significant new surface deposits. Cave mining is the primary underground mining method for extracting large Cu Au porphyry ...
Underground mass mining methods present several geotechnical challenges and risks inherent with block cave mining environments. Underground mining methods such as block, panel, and sublevel caving continue to be the primary choice for deeply situated massive orebodies, due to the high production rates and low operating costs involved.
Jul 14, 2014· Introduction The one u/g mining method that has the potential to rival surface mining in output and cost is block caving. Block caving is the mining method in which masses, panels, or blocks of ore are undercut to induce caving, permitting the broken ore to be drawn off below. If the deposit is overlain by capping or bounded by drawing the ore.
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