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Sunday, November 29, 2020 | History

3 edition of Undercut Block-Caving Method of Mining in Western Copper Mines. found in the catalog.

Undercut Block-Caving Method of Mining in Western Copper Mines.

United States. Bureau of Mines.

Undercut Block-Caving Method of Mining in Western Copper Mines.

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Published by s.n in S.l .
Written in English


Edition Notes

1

SeriesInformation circular (United States. Bureau of Mines) -- 6350
ContributionsGardner, E.
ID Numbers
Open LibraryOL21737442M

Elmo, D., Rogers, S., Beddoes, R. and Catalan, A. () An integrated finite/discrete element method – discrete fracture network synthetic rock mass approach for the modelling of surface subsidence associated with panel cave mining at the Cadia East underground project, in Proceedings 2nd International Symposium on Block and Sublevel Caving (Caving ), Y. Potvin (ed), 20–22 April .


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Undercut Block-Caving Method of Mining in Western Copper Mines. by United States. Bureau of Mines. Download PDF EPUB FB2

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. Undercut Block-Cargin Method of Mining in Western Copper Mines,USBM Information Circular, I.

44 pages and 35 figures. [Gardner, E. D.] on *FREE* shipping on qualifying offers. Undercut Block-Cargin Method of Mining in Western Copper Mines,USBM Information Circular, I.

44 pages and 35 : E. Gardner. The Pre-Undercut Caving Method at the El Teniente Mine, Codelco Chile A Key to Success for Block Caving Mines.

Chen, D. / Australasian Institute of Mining and An Experimental Study on Large-Diameter Longhole Mining of High Stope at Anqing Copper Mine. Renfa, W. / Qian, X. / Zhiming, J. / Australasian Institute of Mining. Caving Underground Mining Methods (longwall, Sublevel caving, Block caving) 1.

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.

Mining by a deep-level block caving system has produced a world record - million tons of copper ore for hoisting - at Magma Copper Co. 's San Manuel underground mine in Arizona. Underground Mining Methods presents the latest principles and techniques in use today.

Reflecting the international and diverse nature of the industry, a series of mining case studies is presented covering the commodity range from iron ore to diamonds extracted by operations located in all corners of the world.

Industry experts have contributed 77 chapters/5(5). 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. The use of block caving was first reported in in the Michigan iron and copper mines where large blocks of ore were undercut, allowing the ore to mine itself under gravity and crush through comminution to a size suitable for handling.

Bulk mining methods. 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" excavated between the top of the haulage level and the bottom of the undercut.

The drawbells serve as a place for caving rock to fall into. United States Bureau of Mines Information Circular Undercut block-caving method of mining in Western Copper mines.

By E. Gardner. 44p. PLUS 35 figures. Thoroughly illustrated, a well-done comprehensive work on this type of mining with examples from specific mines. $ block caving (as high as t/manshift). The disadvantages are higher upfront capital costs given the much larger scale of mining and longer development times.

Block caving will only get more important: Rio is likely to have expanded block cave operations at Northparkes and new block caves at Oyu Tolgoi. Production with block caving originally (Phase 1 project) started at Tongkuangyu from the first undercut at a depth of m below the surface and was designated as Lift m in late and caving has continued to the present.

During the last 25 years, Tongkuangyu has mined three lifts – Lift m, m, and m. ISBN: OCLC Number: Description: x, pages: illustrations: Contents: Underground Mining Methods and Applications --General Planning of the Noncoal Underground Mine --Planning the Underground Mine on the Basis of Mining Methods --Cost Estimating for Underground Undercut Block-Caving Method of Mining in Western Copper Mines.

book --Mineral and Metal Prices L Mechanisms, Instability, and Trends --Mining. Panel and pre-undercut caving methods, variations of the standard block caving, were as introduced in andrespectively to exploit primary copper ore. Taking advantage of gravity, block caving recovers the disassembled ore in regular ‘mine block’ areas, at the same time panel caving develops a continuous front cave, which sometimes can be m long (Fig.

This amateur video shows a bucket wheel excavator working at a coal mine in Western Germany. Bucket-wheel excavators (BWEs) are heavy equipment used in surface mining and civil engineering.

Block Caving Process Animation. 5 ABB Appointed to Modernize Zijin Mining Group’s Copper Mine in Serbia. 6 NIR Spectroscopy Guide for QC Laboratories.

INTRODUCTION: Block cave mining is defined as a mining method which involves undermining an ore body, allowing it to progressively collapse under its own weight. It is a mass mining method that allows for the bulk mining of large, relatively lower grade orebodies.

It. While block caving presents an economic means to develop lower grade ore deposits, it often leads to significant ground deformations threatening the safety of overlying mine infrastructure.

For guidance on relationships between caving depth and surface subsidence, a comprehensive cave mining database was developed and the database clearly shows caving-induced surface deformations tend to be.

ISBN: OCLC Number: Description: x, pages: illustrations, maps ; 29 cm: Contents: Underground Mining Methods and Applications --General Planning of the Noncoal Underground Mine --Planning the Underground Mine on the Basis of Mining Methods --Cost Estimating for Underground Mines --Mineral and Metal Prices L Mechanisms, Instability, and Trends --Mining.

This book presents the latest mining principles and techniques in use today. Reflecting the international and diverse nature of the industry, a series of mining case studies is presented covering the commodity range from iron ore to diamonds extracted by operations located in all corners of the world.

Palabora Underground Mine Project: p. Block Caving Lift 1 of the Northparkes E26 Mine: p. Preundercut Caving in El Teniente Mine, Chile: p. Premier Diamond Mine: p. Block Caving the EESS Deposit at P.T. Freeport Indonesia: p. Finsch Mine: Open Pit to Open Stoping to Block Caving: p.

Cave Mining-The State of the Art. block caving developed in the iron ore mines, northern Michigan, USA ¾Early 20th century: The block caving method developed in the USA for iron ore and then copper mining in the western states ¾s: Block caving started in Canada and Chile ¾Late s: Block caving introduced into southern African diamond mines and then chrysotile asbestos.

Several mining operations are considering the switch from surface to underground in order to mine deeper resources. When making this switch block cave mining is often considered to minimize costs.

The primary objective of this study is to investigate the mechanics of rock slope movements and failure in response to the block caving process. Different potential failure modes are investigated as. 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 ore body, allowing it to progressively collapse under its own weight. Mining is the extraction of valuable minerals or other geological materials from the earth from an orebody, lode, vein, seam, or reef, which forms the mineralized package of economic interest to the miner.

Ores recovered by mining include metals, coal, oil shale, gemstones, limestone, dimension stone, rock salt, potash, gravel, and clay. Mining is required to obtain any material that cannot. Society for Mining, Metallurgy, and Exploration, — p.

— ISBN ; ISBN This + page book contains a wealth of information for mining students and industry professionals. It consists of selected material from the out-of-print industry standard, Underground Mining Methods Handbook.

The top m of the orebody is currently being extracted by block caving, the undercut dimensions measuring m in length by m in width.

This has the potential to open up many other deposits around the world using this low-cost, but safe, mining method." Premier diamond mine [11] in South Africa plans to implement a block cave at a.

Sublevel Caving: A Fresh Look at this Bulk Mining Method p. Panel Caving p. Henderson Mine p. Palabora Underground Mine Project p.

Block Caving Lift 1 of the Northparkes E26 Mine p. Preundercut Caving in El Teniente Mine, Chile p. Premier Diamond Mine p. Block Caving the EESS Deposit at P.T. Freeport Indonesia p. # Gardner E. UNDERCUT BLOCK-CARGIN METHOD OF MINING IN WESTERN COPPER MINES wps light wear vg 44 pp., 35 figs.

Price: $ (stock#USBMIC) # Crabtree E. MILLING PRACTICE AT THE WHITE BIRD CONCENTRATOR, CANAM METALS CORPORATION, PICHER OKLAHOMA. Tongkuangyu Copper Mine is currently the only mine in China employing block caving.

It comprises two large orebodies known as the No 4 orebody and the No 5 orebody. They are approximately 50° in dip angle, 80 to m in width and – m in strike length. The two orebodies are separated by a distance of – m. a block caving operation, with modified stope design and belt conveyor ore haulage.

As shown in Figure 1, the mine development plan called for approximat m of drifting in two levels. After a detailed trade-off study, the mine elected to use a TBM for all development work. Figure 1. TBM tunneling route. Figure 5 is a map of inactive coal mines. Mining methods, depth of mining, and amount of subsidence varies across the state and within individual coalfields.

Coal mining methods also influence the kind and amount of subsidence that can appear at the surface. back to table of contents Mining Methods Room and Pillar Mining. Silver Mining Started On A Limited Scale In The Anaconda Claim Started The High Grade Copper Production In Mn Was First Produced In Zn Started Around In The First Major Change In Mining Methods, It Was Block Caving.

Nature Of Discovery Also: B Ore Mineral In Place. Updated By Mbmg () From Winer, The operations consist of underground block cave mines and an ore processing plant, which produces high-grade copper and gold concentrate.

Production is currently sourced from the E48 Lift 1 block cave mine and open cut stockpiles. Mining commenced at Northparkes in as an open cut operation.

Underground block cave mining began in   Block caving is a mining method in which blocks of ore are undercut to induce caving, allowing it to break up and be drawn off, pulled by gravity.

The contract covers the engineering, supply, configuration and assembly of four systems that comprise the mine’s control system.

Once the trackers are placed, block caving techniques will undercut and fragment the deepest points of the geology, according to the company. The orebody is then collected and taken away for processing.

“Block caving is a low-cost mining method used for the. # Gardner E. UNDERCUT BLOCK-CARGIN METHOD OF MINING IN WESTERN COPPER MINES wps light wear vg 44 pp., 35 figs. Price: $ (stock#USBMIC) # Vanderburg, W. METHODS AND COSTS OF CONCENTRATING SCHEELITE ORE AT THE SILVER DIKE MILL, MINERAL COUNTY, NEVADA wps, light wear, vg, 12 pp., 3 figs.

Block caving is one of the safest and most cost-effective of underground mining methods, relying on natural forces to break the ore rock. The cave is initiated by extracting a slice of the orebody, the undercut.

Gravity induces stresses within the remainder of the orebody, resulting in its fracture without costly drilling and blasting. # Gardner E. UNDERCUT BLOCK-CARGIN METHOD OF MINING IN WESTERN COPPER MINES wps light wear vg 44 pp., 35 figs.

Price: $ (stock#USBMIC) # Crabtree E. MILLING PRACTICE AT THE WHITE BIRD CONCENTRATOR, CANAM METALS CORPORATION, PICHER OKLAHOMA wps light wear vg 12 pp., figs.

Price: $. Glossary of Mining Terms Know More. Blister copper - A crude form of copper (assaying about 99%) produced in a smelter, which requires further refining before being used for industrial purpos Block caving - An inexpensive method of mining in which large blocks of ore are undercut, causing the ore to break or cave under its own weight Board lot.

Block-caving constituted a non-selective underground mining technique developed for low-grade copper ores. Upon completion inthe Kelley became the most productive hoisting shaft in America, capable of bringing four times more ore to the surface than either the Badger or Mountain Con, previously Butte's most productive hoisting operations.

Mining is the extraction of valuable minerals or other geological materials from the Earth, usually from an ore body, lode, vein, seam, reef or placer deposits form a mineralized package that is of economic interest to the miner. Ores recovered by mining include metals, coal, oil shale, gemstones, limestone, chalk, dimension stone, rock salt, potash, gravel, and clay.To deeply understand the mechanism of the rock mass caving and associated surface subsidence during sublevel caving mining, the Xiaowanggou iron mine was selected as an engineering project case study.

The study area was analyzed by means of an in situ geological investigation and numerical simulation. First, a borehole television (BHTV) system and a GPS monitoring system were used to monitor. The reserve grade at present is grams per tonne of gold with per cent copper. To a world of underground mining not so proficient at block caving, that would be regarded as something a.