Block Caving Method Of Mining Block Caving

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 be another great development in this century. However, even though an increasing number of mines are being developed using block caving, this method ...

There are many more variants of block and panel caving methods of mining than those listed above. For example, the macrotrench (or macrozanja) method developed at the El Teniente Mine, Chile, contains elements of panel, …

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. This method is unlike sublevel caving, in that both the ore and the rock are normally involved in the caving. As in ...

The block caving mining method is used to mine large orebodies in weak rock types. The layout for block caving requires that a considerable amount of The layout for block caving requires that a considerable amount of

Block caving definition, a method of mining a large block of ore by systematically undercutting so the ore will cave. See more.

flow, the actual designs of block caving are mainly based on both empirical procedures and . Verdugo R, Ubilla J. Geotechnical analysis of gravity flow during block caving. Proceedings of Massmin 2004, Santiago, Chile, 2004. p. 195 200.

underground mining with increasing focus on deep mining and, in particular, large-scale block and panel caving. The transition is being driven by …

In the meantime, FCX converted its DOZ orebody, which it began mining in 1989 using open stoping, to block caving in 2000, with production expected to continue until 2019. With an output of 49,400 mt/d during 2013, ramping up to 80,000 mt/d this year, the DOZ is now one of the world’s highest-capacity underground metal mines.

panelcaving, inclined-drawpoint caving, and frontcaving. Cavingisthelowest-cost underground mining method provided thatthe drawpoint sizeandhandling facilities are tailored tosuitthecavedmaterial andthatthe extraction horizon canbemaintained forthelife ofthedraw. Thedailyproduction fromcave-mining operations throughout …

Canada’s lead caving operations include New Gold’s New Afton underground block caving mine which seeks to produce an annual average of 75 million pounds of copper and 80,000 ounces of gold over a 12 year mine life.

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 is a high-tonnage underground bulk mining method generally applied to large homogeneous ore deposits. Ideally, the ore to be caved should be structurally weak, and the waste overburden should be weak enough to collapse

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

Mine Sequence Optimization for Block Caving Using Concept of ‘Best and Worst Case’ 4 The best and worst sequence was created for the footprint defined by the black line and the graphic results are shown

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 life of the draw [4].

Bulk-mining methods are a necessary component of economically mining massive, low-grade porphyry copper, gold, molybdenum and diamond deposits, and block caving is the method of choice. The process is suitable for the mining of near-vertical, compact and highly fissured ore bodies.

46 BLOCK CAVING Keeping up with caving Caving mining techniques are experiencing ... Block caving is an underground mining method that uses gravity to …

This fact sheet describes the block caving method of underground mining and the potential environmental implications. BACKGROUND. The Pebble Mine, ...

• Older mining methods such as top slicing and shrink stoping were important precursors to block caving. • Hybrid methods provided a springboard for the adoption of block caving. • The separation of the undercutting, draw and haulage unit operations was important in the success of early block caving.

2 Introduction What is the block caving mining method and why is it projected to have significant and permanent environmental and hydrologic impacts …

Block caving is an underground mining method that permits the bulk mining of large, relatively low-grade bodies of ore. As a sublevel mining process, block caving involves the controlled collapse of ore from under its own weight into chutes or …

This course provides a general introduction to the block cave mining method, covering advantages and disadvantages, basic elements of block caving, design issues, operational issues, safety issues, and economic issues.

Interaction between block caving and rock slope deformation kinematics as a function of cavepositionandorientationofdiscontinuities H. M. Ahmed*1, E. Eberhardt2 and W. S. Dunbar1 Several operations are considering the transition from surface mining to underground block caving to access deeper resources.

With the increasing prevalence of block caving (bulk mining) and the large ore volumes it generates, oversized hang-ups present correspondingly significan

Block CavingIntroduction Block caving is a method that is truly and wholly based on the principles of caving, although recen...

Evaluation of caving as mining method for the Udachnaya underground diamond mine ... Reducing geotechnical problems in block caving by increasing productive ...

Open pit or block caving? A numerical ranking method for selection. ... Open pit mining method has many ... A switch from open pit mining to block caving mining …

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 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.

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 …

Jan 15, 2016· Block caving is a large-scale mining method that allows for huge volumes of rock to be extracted efficiently. Block caving is a large-scale mining method that allows for huge …

Block caving is a large-scale mining method that allows for huge volumes of ore to be extracted efficiently. It minimizes drilling and blasting. Block caving is a large-scale mining method that allows for huge volumes of ore to be extracted efficiently.

Block caving is a gravity-based underground mining method that involves breaking up the rock mass located at depth into pieces. This method is particularly suitable for low-grade minerals or with disseminated mineralization.

Block Cave Mining - Courses and Live Webcasts. ... short courses and live webcasts about Block Cave Mining for mining ... Introduction to Block Caving ...

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 new building blocks of block caving. ... is the lowest cost underground mining method available and is growing rapidly around the world and there is a ...

Caving Underground Mining Methods (longwall, Sublevel caving, ... Caving Underground Mining Methods (longwall, ... of the method ... In block caving method…

Block caving is a large-scale underground mining method applicable to the extraction of low-grade, massive ore bodies. With the amount of literature available on block caving this report identifies the need to provide a simple understanding of the process.