blast hole size for copper gold mine

blast hole size for copper gold mine

Appendix E6 Canadian Environmental Assessment Agency

The burden for the stab row will be 3.0m and the spacing will be 5.5m. Three rows of buffer holes will then be drilled at regular bench depth (15m) and sub drill (2m) with a burden and spacing of 4.8m and 5.5m respectively. All other rows will be regular production holes.

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CAPTURING ECONOMIC BENEFITS FROM BLASTING A

blast hole and the Kgs recorded against individual hole IDs. Holes are remeasured to confirm gassing has occurred and the correct (design) stemming height achieved. Holes are stemmed after gassing. Gassing time ranges from 30 minutes to 40 minutes whereby 0.8 m to 1 m of column rise in a 127mm hole is achieved.

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Major Mines Projects Nickel Rim South Mine

The Strathcona concentrator receives ore from the two Sudbury mines as well as third party custom feed ores and produces two concentrate streams a nickel copper concentrate that goes to the Sudbury Smelter for smelting and a copper concentrate that goes to Glencore Copper for smelting and refining.

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Blasthole Sampling for Grade Control in Open Pit Mine at

Jan 04, 2009Blastholes are drilled in the mine benches with the aims of placing charges for blasting. At Batu Hijau mine, typical hole size is 31 cm in diameter, which create a meter high by 3 meter cone of cutting weighting about 2.5 tonnes. Blast hole sampling is not conducted during operation but after the drill rig has moved on by a small sampling crew.

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(PDF) ROCK BLASTING FOR MINING ResearchGate

ROCK BLASTING FOR MINING . Creation of blast holes and cleaning by a secondary blast may be required to reblast a portion of the rock to reduce it to a size fit for handling by the

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Major Mines Projects Fraser Mine

Camp size, mine location and contacts. Full profiles of select mines and projects. Blast Hole Stoping; Summary a nickel copper concentrate that goes to the Sudbury Smelter for smelting and a copper concentrate that goes to Glencore Copper for smelting and refining. The mill has a maximum capacity of approximately 2.75 million tonnes of

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What is an Explosives Engineer? ( Blaster) Mining

About Copper mining and mining photo from copper mines in India by N G Nair Manager (Mines) Malanjkhand Copper Project. Hindustan Copper Limited, Mining Engineer. First Class Mine Manager. Metalliferous Mines. Gold mine, Lead and Zinc mine,Graphite, Feldspar. Mechanized Under Ground Mines, Mechanized Open Pit Mines. Mining Technology, Mining Software

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Blasthole Sampling VS Reverse Circulation Sampling

Blast Holes and RC drilling have different objectives and use different metrics. Blast holes are very short hole on a very small grid (short spacing) compared to RC drilling. But the most important aspect is that Blast holes are oriented to meet explosive and other mine planning objective. RC drilling is designed to meet geological objectives.

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Gedabek contract area Anglo Asian Mining PLC

Mining activity commenced once more when Anglo Asian began construction of an open pit mine and a conventional heap leach and processing facility for the recovery of gold, copper and silver in 2008. The Company poured its first gold in May 2009, making it the first gold/copper

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Inside the Billion Dollar Dig to Americas Biggest Copper

Mar 14, 2016Over the past few years, Resolution has drilled more than 100 holes to test the size and composition of the Arizona copper deposit. Each test hole, about 6

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open pit mine blasting YouTube

Nov 29, 2010Category Entertainment; Song Hard Road; Artist Sam Roberts; Writers Sam Roberts; Licensed to YouTube by UMG (on behalf of The Orange Record Label); UBEM, LatinAutor UMPG, UMPI, UMPG Publishing

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Back Forty Project Aquila Resources Inc.

The mining fleet will consist of major equipment used directly in the rock moving operation including blast hole drills, hydraulic excavators, and 91 t haul trucks. Various support equipment will be required, such as dozers, graders, water trucks, and light vehicles for maintenance, personnel transport and mine

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Worlds biggest blast at Australian coal mine MINING

Mar 01, 2016Daunia Open Cut coal mine in the north eastern state of Queensland, Australia, has broken the world record for the largest electronic detonator blast ever

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Softrock Mining TechniquesUnderground MinesMinings Method

Level surface drilling jumbo called single boom underground drilling jumbo works mainly on the surface of the tunnel. It has the capacity to drill both the bolt hole and the blast hole. When it comes to mining, the most important factor that has to be taken into consideration is the equipment used for mining.

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TELFER GOLD MINE Newcrest Mining

FY07 production 627,077 oz gold and 27,820 t copper Open pit mine producing +16 Mtpa ore Underground mine producing +4 Mtpa ore Twin train concentrator treating +20 Mtpa to produce gold dore and copper/gold concentrate Dump leach facility for treatment of oxide ore 120 MW gas fired power station supplied through a

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Worlds biggest blast at Australian coal mine MINING

Mar 01, 2016Daunia Open Cut coal mine in the north eastern state of Queensland, Australia, has broken the world record for the largest electronic detonator blast ever

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2017G Evaluating the Fragmentation Data from Copper and

This paper presents a critical review of the fragmentation data obtained from some large open pit copper and gold mines. Database includes 35 mines with Uniaxial Compressive Strength values ranging from 19 MPa to 227 MPa (2756 psi to 32923 psi). Variation in the fragmentation data and the causes are discussed in detail.

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Raising methods in metal Mines copper mining India (1980

At the Kolihan Copper Mines in K C C the raise is 3 m x 3m. The blast holes are 165mm dia, 5 in number (1 in centre, 4 at corners) drilled from the top level to the bottom level, nearly 57 m below. The charging of explosives into blast holes is done from the upper level.

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D245S Rotary Blasthole Drill for Coal, Copper and

Our D245S blasthole drill for coal, copper and gold mining applications. It drills holes with a diameter of 127 203 millimeters (5 8 inches) down to a maximum depth of up to 45 meters (148 feet). This compact yet powerful machine offers a productive and cost effective solution for blasthole drilling.

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H BLASTING IN SURFACE EXCAVATION Mining and Blasting

In normal blasting all holes do not blast at the same time. Blast Size The blasted block should be such that the length is at least twice the width and preferably five times or more. As the number of rows of blastholes increases, the overall rock H BLASTING IN SURFACE EXCAVATION

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Mining 101 Eagle Mine

At Eagle Mine, underground mining employs long hole stoping techniques to recover the ore. The deposit is accessed via a 1 mile long decline tunnel measuring about 18 feet in diameter. Ore is transported to the above ground Coarse Ore Storage Area (COSA) by low profile, 45 ton loaders.

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Selection of Powder Factor in Large Diameter Blast Holes

Selection of Powder Factor in Large Diameter Blast Holes by Jack Eloranta 1995 Abstract In metal mines where ore is reduced to a small size for concentration, excessive fines from blasting are Gold,R.D.,Kennedy,D.A. and Gray, J.H. A review of drilling and blasting practices at the

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Back Forty Project Aquila Resources Inc.

The mining fleet will consist of major equipment used directly in the rock moving operation including blast hole drills, hydraulic excavators, and 91 t haul trucks. Various support equipment will be required, such as dozers, graders, water trucks, and light vehicles for maintenance, personnel transport and mine

Read More

Inside the Billion Dollar Dig to Americas Biggest Copper

Mar 14, 2016Inside the Billion Dollar Dig to Americas Biggest Copper Deposit. Over the past few years, Resolution has drilled more than 100 holes to test the size and composition of the Arizona copper deposit. Each test hole, about 6 inches in diameter and thousands of feet deep, costs more than $1 million.

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Over Hand stoping Room and Pillar Mining Engineer

About Copper mining and mining photo from copper mines in India by N G Nair Manager (Mines) Malanjkhand Copper Project. Hindustan Copper Limited, Mining Engineer. First Class Mine Manager. Metalliferous Mines. Gold mine, Lead and Zinc mine,Graphite, Feldspar. Mechanized Under Ground Mines, Mechanized Open Pit Mines. Mining Technology, Mining Software

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Flexibolts WE SUPPORT YOUR MINE

Square cut end to push the resin capsules up the hole without puncturing them. Two bulbs, sized to accommodate the hole size, to mix the resin properly and then anchor the strand into the hole. THE HYDRAPLATE RESIN FLEXIBOLTS ARE BEING TRIALED IN THE PLATINUM MINES AT PRESENT.

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Investigation of rock blast fragmentation based on

was calibrated by nonlinear fits to 35 bench blasts in different sites from the Sungun copper mine, the Akdaglar quarry, the and Mrica quarry. In order to validate the proposed model, the results were compared to the data obtained from six blast sites in the Chadormalu iron ore mine and the Porgera gold mine.

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PSI Executive Summary

In 2006 PSI Drilling started with one Hydco RC drill rig working between Archipelago Resources Toka Tindung mine and Avocet on the Lanut mine and surrounding exploration leases and has grown since then to a fleet of 30 Drill Rigs, 18 Rod Carriers, 8 Compressor/Boosters, 10 x four wheel drive tractors, a number of telehandlers, and supported by

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What is an Explosives Engineer? ( Blaster) Mining

About Copper mining and mining photo from copper mines in India by N G Nair Manager (Mines) Malanjkhand Copper Project. Hindustan Copper Limited, Mining Engineer. First Class Mine Manager. Metalliferous Mines. Gold mine, Lead and Zinc mine,Graphite, Feldspar. Mechanized Under Ground Mines, Mechanized Open Pit Mines. Mining Technology, Mining Software

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How Rio Tinto Uses Technology For Ethical Mining Nanalyze

Mar 12, 2019The mining employee of tomorrow may not even need to go out in the field. Rio Tinto was the first mining company to have an automated blast hole drill system that enables an operator using a single console at a location remote from the machinery to operate multiple drill rigs from multiple manufacturers.. Environmental Friendly Mining?

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