the block caving mining method is ideally suited to

An Introduction to Block and Panel Caving JOSE

An Introduction to Block and Panel Caving. An In tro d u ctio n to Blo ck an d Pan e l Cavin g Allan Moss, General manager Rio Tinto Copper Projects f Agenda Context why the interest in caving How block caving works and key technical considerations Risks Value drivers 1 March 2011 BMO Capital Markets 2011 Global Metals Mining Conference 2

8.4.2a Block Caving ABC 123 Testing Site / Course

14 December 2018 Sublevel Caving success at Syama

Sublevel caving comprises a series of repetitive activities and is ideally suited to automation. Syama is well suited to the sublevel caving mining method because of its scale, width, orientation, and uniformity of grade. Unlike other bottomup caving methods (block cave, panel cave) sublevel cave mining is a topdown method

EDSGN 100 An Introduction to Engineering Design Block

We were presented with the problem of improving a block caving mining extraction method. Our team decided to improve five aspects of the extraction, centered around our main design. Our design was inspired by magnetic trains which are used in public transportation and provide an improvement in speed and environmental safety.

Block cave economics Solid Ground Solid Ground

Nov 05, 2019· Tonnage is tantamount to profitability at New Golds New Afton mine in southcentral British Columbia. The mine has moved and milled as many as 22, tonnes of ore in a single day and routinely extracts 18,500 from Canadas only block cave. Like other prolific block caves, New Afton enjoys enviable efficiency at extremely low operating costs.

Cave Mining Techniques

Cave mining is typically used to mine copper, coppergold, 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 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.

Longwall Mining an overview ScienceDirect Topics

Under ideal conditions, 60%70% of the gas in the coal seams can be removed by vertical wells if drilled and produced for 510 years in advance of mining. Reservoir pressures can be reduced by 80% prior to mining. This technique is ideally suited to deep, very gassy coal seams with low to medium permeability (110 md).

OnlineBTD Streaming Algorithms to Track the Block Term

Oct 09, 2020· In data mining, block term tensor decomposition (BTD) is a relatively underexplored but very powerful multilayer factor analysis method that is ideally suited for modeling for batch processing of data which is either low or multilinear rank, e.g., EEG/ECG signals, that extract "rich" structures (> rank 1) from tensor data while still maintaining a lot of the desirable properties of popular

Newcrest to sink 376m into sublevel cave mine

Jul 31, 2· Newcrest has chosen to develop Ridgeway using a bulk mining method called sublevel caving, which is ideally suited to the vertical pipelike orebody. It has a typical diameter of 180m that extends from 475m to 1,025m vertical depth, beneath which it is open. According to CIBC World Markets analyst, Tony Lethlean, it should provide low

An Introduction to Block and Panel Caving JOSE

An Introduction to Block and Panel Caving. An In tro d u ctio n to Blo ck an d Pan e l Cavin g Allan Moss, General manager Rio Tinto Copper Projects f Agenda Context why the interest in caving How block caving works and key technical considerations Risks Value drivers 1 March 2011 BMO Capital Markets 2011 Global Metals Mining Conference 2

Analytical Model To Determine Of The Optimal Block Size In

Block caving is described by Laubscher (1994) as the lowest cost underground mining method provided that the extraction layout is designed to suit the caved material and the draw horizon can be maintained for the

Transition from Surface to Underground Mining

or open pit slope may be present) has led to a need for numerical methods, which are more ideally suited for treating problems involving complex geometries and material behaviour. Several techniques have been applied to the analysis of block caving subsidence (see review by Elmo et al., 2007a), ranging from those

Simulation of the rock caving process using a meshfree

Understanding the caving process and material flow is fundamental to block and sublevel cave mining, and also longwall mining in sedimentary deposits. However, due to complexity of the structure of the rock mass and its behaviour, the caving process is rarely understood and cannot be described by simple mathematical models.

Simulation of the rock caving process using a meshfree

Understanding the caving process and material flow is fundamental to block and sublevel cave mining, and also longwall mining in sedimentary deposits. However, due to complexity of the structure of the rock mass and its behaviour, the caving process is rarely understood and cannot be

Coal Mining Methods Blog Midwest

Longwall mining and roomandpillar mining are the two basic methods of mining coal underground, with roomandpillar being the traditional method in the United States. Both methods are well suited to extracting the relatively flat coalbeds (or coal seams) typical of the United States. Although widely used in other countries, longwall mining

Open pit or block caving? A numerical ranking method

Block caving is a hightonnage underground bulk mining method generally applied to large homogeneous ore deposits. Ideally, the ore to be caved should be structurally weak, and the waste

APPENDIX F. ALTERNATIVES CONSIDERED BUT DISMISSED

Coppers) proposed panel caving mining technique (panel caving is a form of block caving), in particular requesting that alternative mining techniques be considered or required. Public comments asked for alternatives considering the following items use of traditional mining methods, including lessmechanized forms of mining,

Block Caving Underground Mining Method

block caving is the only underground mining technique that achieves production rates equivalent to surface mining. However, it is only suitable for ore bodies with large horizontal and vertical extents.

An airblast hazard simulation engine for block caving

Introduction. Airblast in block caving situations is a very dangerous situation with potential loss of life for operators and damage to mining equipment. 1 Airblasts occur when air pockets are present within the material that is currently being extracted through the drawpoints (Fig. 1). 2 As the material close to the drawpoints (defined as the muckpile) becomes stagnant, the block falling at

Newcrest to sink 376m into sublevel cave mine

Jul 31, 2· Newcrest has chosen to develop Ridgeway using a bulk mining method called sublevel caving, which is ideally suited to the vertical pipelike orebody. It has a typical diameter of 180m that extends from 475m to 1,025m vertical depth, beneath which it is open. According to CIBC World Markets analyst, Tony Lethlean, it should provide low

PRINCETON MINING CORPORATION

The mining method chosen for the underground is sublevel block caving which is ideally suited for massive highlyfractured oeposits I. t provides the opportunity for high production capacity, and once in place, is one of the lower cost underground mining methods. The method requires heavily supported drawpoints which are driven at regular

Stoping Mining Methods Metallurgist Mineral Processing

Apr 03, 2017· 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.

mining and mines Block Caving

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

Long hole drilling for the platinum industry a mining

that a 100 m x 100 m block should ideally not contain more than 5 geological structures to ensure sufficient block sizes for optimized drilling. Reef dip The two aspects of reef dip that influence the application of the instope long hole drilling method are the ability to throw blast and the ride of the hangingwall and footwall,

USE OF THE MINING ROCK MASS RATING (MRMR)

blockcaving projects in Chile, where the difference in IRMR values obtained by the fracture frequency (FF/m) method versus the RQD method is quite obvious. The comparison was made from drill core logging for a blockcaving project in which an accurate assessment of rock mass conditions has a

Block caving QueensMineDesignWiki

PRINCETON MINING CORPORATION

The mining method chosen for the underground is sublevel block caving which is ideally suited for massive highlyfractured oeposits I. t provides the opportunity for high production capacity, and once in place, is one of the lower cost underground mining methods. The method requires heavily

Block caving mining method Epiroc YouTube

Nov 22, 2019· Block caving is a large scale mining method that allows for huge volumes of rock to be extracted efficiently.

Business Planning Group Vale

1.1 Sub Level Caving The sublevel cave (SLC) mining method is suited to a variety of orebody shapes and ground characteristics. It has particular advantages in low grade ore. Stobie Mine is a noteworthy Vale operation using SLC mining. SLC mining is suited to steeply dipping ore, as well as flatter lying orebodies having a large vertical dimension.

Block Caving groundtruthtrekking

Dec 21, 2012· 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.