block caving cost model

block caving cost model

Abstract - USGS

BLOCK CAVING MINE MODEL. Block caving requires a large capital expenditure for development and is usually applicable for large-scale pro­jects. This method usually has a lower operating cost per short ton than any other underground method, and often the highest capital cost.

(PDF) Open pit or block caving? A numerical ranking

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

LONG TERM PLANNING OF BLOCK CAVING

2020-7-24 · Figure 3-9: Variation of opportunity cost as the schedule progresses 45 Figure 3-10: Comparison between methods to compute mining reserves in Block Caving 50 Figure 3-11: Comparison between methods to compute mining reserves in Block Caving 51 Figure 3-12: Evolution of opportunity cost through the production schedule for different iterations 53

Block caving - Canadian Mining Journal

2018-12-1 · The following steps should be completed when evaluating a mineral deposit for block caving: Apply typical costs and economic cut-off values to the resource block model and assess the resulting geometry and block values in terms of block caving –

Interaction between block caving and rock slope ...

2014-11-21 · Interaction between block caving and rock slope deformation kinematics as a function of ... grade porphyry copper deposits due to the low cost and high productivity that can be achieved. This includes open ... model block cave/open pit interactions. In this study, a

Paper: Draw rate optimisation in block cave production ...

Abstract: Among the underground mining methods available, caving methods are favoured because of their low cost and high production rates. Block caving operations

Draw rate optimisation in block cave production

model for production scheduling based on the draw control system are presented using a case study. Keywords: block caving, draw rate, optimisation, mixed-integer linear programming 1 Introduction Block caving is generally a large-scale production technique applicable to low-grade, massive orebodies and

A study of isolated draw zones in block caving mines by ...

2016-9-29 · model set up and the prototype (mine) was carried out. 3. Analysis of similitude The gravity flow of caved rock in block caving is a very complex process. The rock mass that is initially in a solid state becomes a fragmented mass by the action of stresses due to the caving process, that is, the primary fragmenta-tion process.

基于刚性块体模型的近−远场崩落矿岩流动特性

2020-10-23 · A study of isolated draw zones in block caving mines by means of a large 3D physical model. Int J Rock Mech Min Sci , 2007, 44(6): 860 doi: 10.1016/j.ijrmms.2007.01.001 [15]

Block caving mining method with Elfen software, explained ...

Caving is the lowest cost underground mining method for large near-vertical orebodies provided that the drawpoint size and the handling facilities are tailored to suit the caved material. The economic viability of a block cave and its productivity levels are dependent upon the degree of primary fragmentation that occurs within the seismogenic zone.

Block Caving – A Viable Alternative? | Golder

The following steps should be completed when evaluating a mineral deposit for block caving: Apply typical costs and economic cut-off values to the resource block model and assess the resulting geometry and block values in terms of block caving – size, shape and available footprint area, and potential economic margins.

Simplified Cost Models For Prefeasibility Mineral Evaluations

Simplified Cost Models For Prefeasibility Mineral Evaluations 1991. By Thomas W. Camm. UNITED STATES DEPARTMENT OF THE INTERIOR . Manuel Lujan, Jr., Secretary. ... Block caving mine model, base case 12. Cut-and-fill mine model, base case 13. Room-and-pillar mine model, base case 14. Shrinkage stope mine model, base case 15. Sublevel longhole ...

A study of isolated draw zones in block caving mines by ...

The cost effectiveness of a block caving operation relies strongly on the use of gravity to both cave and transport large amounts of broken rock from its in situ location. In block caving methods, the ore and the waste caves under the influence of gravity and the redistributed in situ stresses after the undercutting of the orebody base.

Underground Block Caving: A Guide for Investors ...

2013-4-16 · The block-caving method produces cheap per-unit ore at a cost that is comparable to that of open-pit mining. A tonne of ore from a block-caving operation costs $5 to $7 to produce, while open-pit ...

Interaction between block caving and rock slope ...

2014-11-21 · Interaction between block caving and rock slope deformation kinematics as a function of ... grade porphyry copper deposits due to the low cost and high productivity that can be achieved. This includes open ... model block cave/open pit interactions. In this study, a

Draw rate optimisation in block cave production

model for production scheduling based on the draw control system are presented using a case study. Keywords: block caving, draw rate, optimisation, mixed-integer linear programming 1 Introduction Block caving is generally a large-scale production technique applicable to low-grade, massive orebodies and

Optimization of Block-cave Production Scheduling under ...

2016-9-17 · precedence. Application of the method for block-cave production scheduling using a case study over 15 Periods is presented. 1. Introduction Among the underground mining methods available, caving methods are favored because of their low-cost and high-production rates. Production scheduling in block caving, because of its significant impact on the

A study of isolated draw zones in block caving mines by ...

2016-9-29 · model set up and the prototype (mine) was carried out. 3. Analysis of similitude The gravity flow of caved rock in block caving is a very complex process. The rock mass that is initially in a solid state becomes a fragmented mass by the action of stresses due to the caving process, that is, the primary fragmenta-tion process.

基于刚性块体模型的近−远场崩落矿岩流动特性

2020-10-23 · A study of isolated draw zones in block caving mines by means of a large 3D physical model. Int J Rock Mech Min Sci , 2007, 44(6): 860 doi: 10.1016/j.ijrmms.2007.01.001 [15]

Block Caving – A Viable Alternative? | Golder

The following steps should be completed when evaluating a mineral deposit for block caving: Apply typical costs and economic cut-off values to the resource block model and assess the resulting geometry and block values in terms of block caving – size, shape and available footprint area, and potential economic margins.

Why BLOCK CAVING is an economically viable option for

2021-9-2 · The following steps should be completed when evaluating a mineral deposit for block caving: Apply typical costs and economic cut-off values to the resource block model and assess the resulting geometry and block values in terms of block caving – size, shape and available footprint area, and potential economic margins.

LONG TERM PLANNING OF BLOCK CAVING

2020-7-24 · Figure 3-9: Variation of opportunity cost as the schedule progresses 45 Figure 3-10: Comparison between methods to compute mining reserves in Block Caving 50 Figure 3-11: Comparison between methods to compute mining reserves in Block Caving 51 Figure 3-12: Evolution of opportunity cost through the production schedule for different iterations 53

Simplified Cost Models For Prefeasibility Mineral Evaluations

Simplified Cost Models For Prefeasibility Mineral Evaluations 1991. By Thomas W. Camm. UNITED STATES DEPARTMENT OF THE INTERIOR . Manuel Lujan, Jr., Secretary. ... Block caving mine model, base case 12. Cut-and-fill mine model, base case 13. Room-and-pillar mine model, base case 14. Shrinkage stope mine model, base case 15. Sublevel longhole ...

The new building blocks of block caving - Australian Mining

2014-2-21 · "[Block caving] is the lowest cost underground mining method available and is growing rapidly around the world and there is a significant shortage of people with skills in these areas ...

Interaction between block caving and rock slope ...

2014-11-21 · Interaction between block caving and rock slope deformation kinematics as a function of ... grade porphyry copper deposits due to the low cost and high productivity that can be achieved. This includes open ... model block cave/open pit interactions. In this study, a

A study of isolated draw zones in block caving mines by ...

The cost effectiveness of a block caving operation relies strongly on the use of gravity to both cave and transport large amounts of broken rock from its in situ location. In block caving methods, the ore and the waste caves under the influence of gravity and the redistributed in situ stresses after the undercutting of the orebody base.

Optimization of Block-cave Production Scheduling under ...

2016-9-17 · precedence. Application of the method for block-cave production scheduling using a case study over 15 Periods is presented. 1. Introduction Among the underground mining methods available, caving methods are favored because of their low-cost and high-production rates. Production scheduling in block caving, because of its significant impact on the

Mine sequence optiMization for Block caving using

2016-8-25 · metal price, cost and grade and dilution profile, etc. The sequence definition opens each block column using a certain shape and direction and thereby is suitable for block caving purposes where geotechnical, design and operational constraints need to be satisfied. The best and worst case concept can be easily implemented

sublevel caving method cost estimation pdf - BINQ Mining

2013-4-21 · Sublevel caving — past and future – Australian Centre for . 23 Dec 2009 induced caving (hence the name sublevel caving). the predominant mining method at Grängesberg.. fans so one could estimate the ellipsoid of .. specific unit cost difference is for dumping a portion of the waste in the pit »More detailed