What every mining professional needs to know about block …
Touted as the deep mining method of the future, block caving is an underground mass-mining method that allows for the bulk extraction of large, relatively lower-grade ore …
Cave Mining Techniques
Cave mining is typically used to mine copper, copper-gold, iron and molybdenum. It can also be used in the extraction of kimberlite and lamproite in the mining of diamonds. Block Cave Mining Techniques. The most commonly used cave mining technique is block caving. Block caving is a large-scale mining method that is particularly useful for ...
IOP Conference Series: Earth and Environmental Science …
The economic benefit of block caving which is the only mining method can be comparable to that of open-pit mining because block caving has a lot of advantages, such as large production capacity, convenience in production organization and management, operation safety and low mining cost.
Feasibility of Broken Ore Flow Simulation in Block Caving Mining Method
Block caving is a high-technology mining method with high capacity, and the application of this mining method can greatly reduce mining costs and produce good economic benefits . The broken ore in this method is directly in contact with the overburden, and its attributes include information on grade and lithology.
(PDF) Block caving
The four methods are: chamber and pillar mining, sublevel stoping with spent shale backfill, sublevel stoping with full subsidence, and block caving using load haul dump (LHD).
Block Caving Mining Method: Transformation and Its …
The block caving mining method has become increasingly popular in the last two decades. Meanwhile, Indonesia has several potential ore bodies which have not …
Block caving: A new mining method arises | Geoengineer
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.
Induced hydraulic fractures in underground block caving …
Block caving has become an attractive underground rock mining method that requires effective preconditioning of the orebody to initiate the progressive rock collapse by its weight. Hydraulic fracturing is commonly used in cave mining as a preconditioning method to induce artificial fractures in the orebody rock mass.
Block Caving Mining Method
The block caving mining method holds for mining thick ore bodies with stable ores and regular shape, and without pyrophoricity and caking properties. The …
Topic 7: Underground Mining Methods Longwall Sublevel Caving Block Caving
Topic 7: Underground Mining Methods Longwall Sublevel Caving Block Caving Hassan Z. Harraz hharraz2006@yahoo 2014- 2015 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.
Analytical Model Determining the Optimal Block Size in the Block Caving …
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 production rate of these methods (including sublevel caving and block caving), make them cost-effective.
Block Caving Mining Method, Application Of
obvious ore block structure. In general, vertical deep hole extrusion blasting is used for caving, and the bottom structure is commonly set at the lower part of the stope. In Russia, the end ore drawing method is also available. The block caving mining method holds for mining thick ore bodies with stable ores and reg-
Methodology for evaluation of mud rush risk in block caving mining
The references to block caving mining projects worldwide and the potency of metal deposits in Indonesia were reviewed to determine the requirements of ore bodies suitable for mining using the ...
Block Caving Mining Method: Transformation and
Among underground mining methods, block caving is the most cost-effective as it can produce 10,000–100,000 tons per day with a relative operating cost of USD 1 to 2.5 per ton [6,7]. In the last twenty years, existing block caving mines have varying ore body thickness ranges from 200 to 800 m. A study proposes that the cut and fills stopping ...
Effect of block caving mining disturbance on the …
Disturbances caused by block caving mining can significantly change the geometric parameters of rock fractures and affect the hydraulic characteristics of the rock mass. In areas with heavy rainfall, there is a high risk of water gushing into mining roadways if the overlying rock mass becomes highly permeable. Therefore, it is …
Raise Caving—A Hybrid Mining Method Addressing …
Cave mining progresses to depths exceeding 1000 m and ore bodies situated in competent and strong rock masses are nowadays extracted by different cave mining methods. Widely applied caving methods in massive deposits are block and panel caving, inclined caving, and sublevel caving. All caving methods have in …
A Practical Manual on Block Caving | Resolution Copper …
Laubscher, D.H., 2000. Block Caving Manual, Prepared for International Caving Study. JKMRC and Itasca Consulting Group, Inc. Brisbane.
8.4.2b Sublevel Caving | GEOG 000
8.4.2b Sublevel Caving. Sublevel caving shares many similarities with block caving, with one notable exception, which is responsible for this method: the orebody is competent and will not cave under its own weight. The host rock, on the other hand, is weak and caves behind the ore as it is extracted.
Study of the Influence of Block Caving Underground Mining on …
Block caving mining method is one of the most viable and preferred mass underground mining methods for low grade orebody. However, in combined surface and underground mining, the breakthrough of an underground caving under an open pit may result in subsidence at the bottom of the pit. This can pose a serious threat for the …
Productivity of a Continuous Mining System for Block Caving …
Block caving mining is one of the most cost-effective underground mining methods. The method has particular relevance in the Chilean mining industry, where approximately 40 % of the Chilean national copper production comes from block caving mines (El Teniente, Andina, and El Salvador, and in the near future, Chuquicamata).
Block Caving Mining Method: Transformation and Its …
The block caving mining method has become increasingly popular in the last two decades. Meanwhile, Indonesia has several potential ore bodies which have not yet determined suitable mining methods. The references to block caving mining projects worldwide and the potency of metal deposits in Indonesia were reviewed to determine …
Block Caving | Ground Truth Alaska
Block Caving Process; Hazards and Side Effects; Block Caving and Pebble Mine; 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.
Production Scheduling in Sublevel Caving Method with …
Among underground mining methods, block caving, sublevel caving, sublevel stopping, cut and fill, and stope and pillar methods are usable for the mining of metallic reserves. The true optimum solution is guaranteed for the pit limit optimization and several computer packages are available to the industry.
Block Cave Underground Mine
6 What and Why Block Caving? What : Block (gravity) caving is a bulk underground mining method, which allows large low-grade deposits to be mined underground. This method involves undermining the orebody to make it collapse under its own weight into a series of chambers from which the ore extracted.
What every Mining Professional needs to know about Block Caving
Described as the deep mining method of the future, block caving is an underground mass mining method that allows for the bulk extraction of large, relatively lower-grade ore deposits that are vertical in orientation.
Mining Methods: Block Caving
Block (gravity) caving is a bulk underground mining method, which allows large low-grade deposits to be mined underground. This method involves undermining …
Block Cave Mine Ventilation: Research Findings | IntechOpen
This form of caving is often referred to as stress caving . In the caving mining methods, assessing the initiation and growth of caving in rock masses is important to determine the higher-production, lower-cost method. ... All findings and observations provide helpful information to understand CO diffusion characteristics in block caving …
Inside block caving: the deep mining method of the future?
As block caving is the only underground method that can offer comparable open-pit production rates and operating costs, the technique is set for a strong future on …
Orebody cavability prediction challenges in block caving mining …
A traditional block caving mine considers the development of an undercut level that allows blocky or veined rock masses to fracture, fail, and unravel when the undercut area is large enough. Once caving initiates, the rock mass progressively fails when induced stresses overcome the rock mass strength and when fractured rock …
Block caving: A new mining method arises
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 …