block caving equipment

FOURTH INTERNATIONAL SYMPOSIUM ON BLOCK AND …

Afton underground block caving mine which seeks to produce an annual average of 75 million pounds of copper • Draw control/ material flow • Caving mechanics • Ground support • Geotechnical monitoring • Fragmentation • Mine equipment • Numerical modelling • Planning and design of caving …

BLOCK_CAVING_METHOD.pptx

The source of the second variation in block caving is the system of draw or the method of materials handling of the caved ore. Three versions of materials handling are normally used: gravity, slusher, and loader. The original method was the gravity-draw method, which utilizes the forces of gravity and finger and transfer raises to transport the broken ore from the undercut and caving levels to ...

THE STORY OF THE BAGDAD MINE

By early 1945, block caving had proved only partly successful. Labor was in short supply. The ore-body was relatively thin for block-caving and so requir­ ed a high ratio of development work per ~ep of ore. Then it was that Manager Dickie made the decision which made Bagdad a …

Chuquicamata underground mine design: the simplification ...

Caving 2018, Vancouver, Canada 387 1.2 Chuquicamata underground mine macro blocks original design The original macro block design of the project considered mining units with seven sublevels including undercut, production, air intake, air exhaust, ore transfer, ore crushing, and intermediate conveying (Figure 3).

Block Caving: Mining Specialization | E & MJ

The current concept involves a 7.5-km-long access decline leading to four production levels, with block caving being used to produce 140,000 mt/d of ore. And in the U.S., the possibility of mining below the existing Bingham Canyon pit raises the prospect of extending the mine''s life beyond 2050.

Tools & Materials for Spoon Carving

The time-honored craft of spoon carving is one that''s available to everyone with only a few tools required. Learn from Jarrod Dahl what those tools are, and ...

Block Caving Process Animation

 · Block Caving Process Animation. This video describes the block caving process with 3D animation. Block Caving is used to mine massive steeply dipping orebodies (typically low grade) with high friability. An undercut with haulage access is driven under the orebody, with "drawbells" …

Block caving: When real life doesn''t work like the ...

 · At MacLean, we''re big fans of block and panel caving animations like the nifty ones for Resolution Copper, Northparkes, and New Afton that cleverly depict the sequence of steps required to create these underground rock factories. Bulk mining methods come with significant upfront development costs, but remain the most economical way to extract ...

Caving Methods | Mineral Production Activities ...

Block caving is a method which is used very successfully on large-scale mines exploiting massive orebodies or pipes. An undercut is developed beneath a block of ore incorporating the entire "footprint of the orebody," the block having a height of 200 to 300m. In a pipe of diameter 1km & SG of 2.5 a 200m block would contain 393 million ...

Block Caving

Optimise and model your complex block caving operations with the world''s most advanced software using industry leading mathematics. Life of mine planning. ... Plan each shift down to the individual equipment level to defend against tactical plans. Plan resolution. Hourly / Shiftly. Learn More. Strategic.

Block_Caving_2018.pdf

MINE 411 Underground Mining Methods & Equipment Course Instructor: Prof. Raymond S. Suglo Block Caving Method 1 BLOCK CAVING METHOD Area of Application The method is applied to large massive and disseminated low grade mineral deposits of large horizontal dimensions which are structurally weak. Both the ore and country rocks are weak and the ore is weak enough to cave under its own weight.

An overview of block caving operation and available ...

term "block caving" is used for all types of gravity caving methods. There are three major systems of block caving, and the type of pipment used differentiates them;roduction equ (1) The first system based on the original block cave system is the grizzly or gravity system and is a full gravity

Definition of block caving

The term ''block caving'' is used for all types of gravity caving methods. There are three major systems of block caving, and they are differentiated by the type of production equipment used. (1) The first system based on the original block cave system is the grizzly or gravity system and is a full gravity system wherein the ore from the ...

Inside block caving: the deep mining method of the future?

 · The role of block caving. Although the caving mining system was initially used for shallow orebodies, it has recently been applied at depths of 2km underground. According to Suorineni, "caving heights have also increased drastically from about 200m to …

Increasing productive capacity in block caving mines

Conventional extraction methods limit the productivity of block caving by implementing equipment such as load–haul–dump units (LHDs) that operate in a batched process (Rashidi-Nejad et al. 2014). This batched extraction necessitates the operation and maintenance …

Climbing & Caving Equipment for Sale

New & used Climbing & Caving Equipment for sale - Free shipping on many items - Browse tree climbing gear & rock climbing gear on eBay New & used Climbing & Caving Equipment for sale - Free shipping on many items - Browse tree climbing gear & rock climbing gear on eBay ... Twin sheave block and tackle 7500Lb pulley system 100 feet 1/2 Double ...

Caving Equipment Canada | Best Selling Caving Equipment ...

caving equipment. Seeking worldwide caving equipment online to encourage your passion and honor from DHgate Canada site. We lined up best ac equipment with highly regarded from the hundreds of options, so you can find the right outfit for you. It is our pleasure to provide cool rehabilitation equipment with high quality and reasonably priced. Finish shopping for cheap farm equipment sale and ...

Block caving

Block Caving - groundtruthtrekking

Longwall mining

Longwall mining is a form of underground coal mining where a long wall of coal is mined in a single slice (typically 0.6–1.0 m (2 ft 0 in–3 ft 3 in) thick). The longwall panel (the block of coal that is being mined) is typically 3–4 km (1.9–2.5 mi) long and 250–400 m (820–1,310 ft) wide.

Petzl USA

Headlamps for climbing, trail running, sailing, fishing or any pursuit that requires hands-free lighting. Professional. Equipment for work-at-height and rescue professionals: fall arrest, work positioning, personal escape, difficult to access and confined space rescue systems. Specialized headlamps for …

Caving Mining Method Classification and Characteristics

 · Characteristics. (1) Caving mining method no longer divides the ore block into ore rooms and pillars, but takes the whole ore block as a stoping unit, and carries out continuous single-step stoping according to a certain sequence. (2) In the stoping process, the surrounding rocks are naturally or forcibly caved, and the ore is drawn in direct ...

Block caving method : mining

Block caving method Hi i''m a mining engineer and I''m currently working but i have a problema getting My head around the block caving method, i just can''t picture it, Ive seen some videos about it but i still don''t understand, what equipment it''s used? it''s the same as in long drilling?

Block caving: When real life doesn''t work like the animations

 · January 23, 2021. At MacLean, we''re big fans of block and panel caving animations like the nifty ones for Resolution Copper, Northparkes, and New Afton that cleverly depict the sequence of steps required to create these underground rock factories. Bulk mining methods come with significant upfront development costs, but remain the most ...

Block Caving | MacLean Engineering

The MacLean Ore Flow Suite for Block Caving (Bulk Mining) is what an underground mine needs to beat the challenges of ore flow blockages like drawpoint hang-ups and oversize that seriously impact productivity and increase overall mining costs. When caving is induced, competent ore bodies with coarse fragmentation and insufficient comminution ...

Cost Of Mining Equipment For Sub Level Caving Mining

Sublevel Caving Shields And Their Utilization In. 2014-7-16 Sublevel Caving Shields and Their Utiliation in Mining Out Disturbed Thick . 91 1. Cost of mining out blocks containing less than 70 000 tons of extractable . Economic results of the technology based on sublevel caving equipment …

(PDF) Topic 7: Underground Mining Methods Longwall ...

Topic 7: Underground Mining Methods Longwall Sublevel Caving Block Caving Hassan Z. Harraz [email protected] 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.

(PDF) An overview of block caving operation and available ...

Block caving technique is a mass mining method in which gravity is used in combination with internal rock stresses to fracture and break the rock mass into pieces that can be handled by miners.

Mining Methods: Block Caving | Geology for Investors

 · 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. It is a useful technique to extend the life of large deposits previously mined by ...

The Block Cave Mining Method

 · The Block Cave Mining 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. Understanding a production process of a block cave mine is ...

Basic trends in development of drilling equipment for ore ...

 · The authors have determined the causes of drop in performance of induced block caving using fans of blastholes 105 mm in diameter and single blastholes 250 mm in diameter, as well as the sources of increased drilling cost and expansion of start-up time of production blocks in Abakan underground mine. Alternatives of improvement in drilling efficiency under current conditions are …

Underground mining methods handbook (Book) | OSTI.GOV

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 fixed costs, except royalty and lease payments, ranged from $1.04 per ton for chamber and pillar to $1.35 per ton for block caving, using LHD''s.