open pit mine development basics

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Basics of open pit mining - YouTube

11.07.2016  Basics of open pit mining Mining presentations. Loading... Unsubscribe from Mining presentations? ... Open Pit Mine Planning - Duration: 1:58. VRMesh 10,066 views. 1:58. Building an Inexpensive ...

作者: Mining presentations

Basics of an open pit mine - Mine Engineer.Com

Open pit mines can be used in coal mining, and they are used extensively in "hard rock" mining for ores such as metal ores, copper, gold, iron, aluminum, and many minerals. In a open pit coal mine, the pit bottom would be the bottom mined coal seam elevation, since it is usually feasible to extract multiple seams when surface mining coal. In a hard rock mine, the bottom of the pit would be the ...

Open-pit mining - Wikipedia

OverviewExtractionWastePollutantsHydrology in miningUntoppingRehabilitationTypical open cut grades

Open-pit, open-cast or open cut mining is a surface mining technique of extracting rock or minerals from the earth by their removal from an open pit or borrow. This form of mining differs from extractive methods that require tunnelling into the earth, such as long wall mining. Open-pit mines are used when deposits of commercially useful ore or rocks are found near the surface. It is applied to ore or rocks found at the surface because the overburdenis relatively thin or the

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Open-Pit Mining Methods

AdvantagesIssuesTypesUsageCostTechnologyOperationConstructionServiceEarly historyOther factors influencing the choice between open-pit and underground methods may be inferred from the advantages and disadvantages of open-pit mining, some of which are listed below. In specific instances consideration of these may affect the choice of method or result in revision of pit limits established by cost estimates based upon stripping-ore ratios. Among the advantages of open-pit mining are its flexibility, the ability to obtain mass production with it, and the ease with which rate of production

Basics of openpit mining - LinkedIn SlideShare

What is Opencast Mining• Opencast mining is also known as Open pit mining, Open cut Mining, Surface or Strip Mining.• The coal upto economical depth will be excavated by OC Method.• The current operating depth of OC mines in SCCL is about 200m and SCCL proposed to operate OC mines upto a depth of 420m. Ex: MNG OC II Extension Project.• The overburden and the Coal are excavated in long ...

Open Pit Mine Planning - YouTube

17.10.2016  This video shows how to quickly design an open-pit mine, and calculate the volume of the mine – vrmesh.

作者: VRMesh

Surface Mining Methods and Equipment

UNESCO – EOLSS SAMPLE CHAPTERS CIVIL ENGINEERING – Vol. II - Surface Mining Methods and Equipment - J. Yamatomi and S. Okubo ©Encyclopedia of Life Support Systems (EOLSS) SURFACE MINING METHODS AND EQUIPMENT J. Yamatomi and S. Okubo University of Tokyo, Japan Keywords: Mining method, surface mining, open pit mining, open cast mining, placer mining, solution mining

Planning of open pit mines on a risk basis - SAIMM

Planning of open pit mines on a risk basis by O.K.H. Steffen* Synopsis This paper addresses the methodology of introducing risk into the development of mine plans for open pit mines. Recommendations are put forward for achieving a risk balance between mineral resource estimates and slope design. A design process identifying criteria for different stages of planning is presented.

Coal mining - Choosing a mining method Britannica

Coal mining - Coal mining - Choosing a mining method: The various methods of mining a coal seam can be classified under two headings, surface mining and underground mining. Surface and underground coal mining are broad activities that incorporate numerous variations in equipment and methods, and the choice of which method to use in extracting a coal seam depends on many

Coal mining - Choosing a mining method Britannica

Coal mining - Coal mining - Choosing a mining method: The various methods of mining a coal seam can be classified under two headings, surface mining and underground mining. Surface and underground coal mining are broad activities that incorporate numerous variations in equipment and methods, and the choice of which method to use in extracting a coal seam depends on many

Optimized open pit mine design, pushbacks and the gap ...

Open pit mine design and long-term production scheduling is a critically important part of mining ventures. The optimization of long-term planning deals with the maximization of cash flows, typically in the order of hundreds of millions of dollars. Life-of-mine planning determines the technical plan to be followed from mine development to mine closure and further rehabilitation. It is an ...

Some Technical Aspects of Open Pit Mine Dewatering

Drainage Control for Surface Mines 22 Some Technical Aspects of Open Pit Mine Dewatering by V. Straskraba, Senior Mining Hydrogeologist, Dames Moore, Denver, Colorado, USA In recent years the increase in development of new open pit mines, especially in the Western U.S., is evident.

OPEN-PIT MINING

This vertical zoning has given rise to a mining practice where only the centre 3.5m-high portion of the seam is being mined.At the Gloria mine the intensity of faulting is much less, which also explains the lower grade. RESOURCES/RESERVES Measured Resources are classified as material available up to 50m in front of the mining faces. Material ...

INTRODUCTION TO MINING - Ciência Viva

INTRODUCTION TO MINING 1.1 MINING’S CONTRIBUTION TO CIVILIZATION Mining may well have been the second of humankind’s earliest endeavors— granted that agriculture was the first. The two industries ranked together as the primary or basic industries of early civilization. Little has changed in the importance of these industries since the beginning of civilization. If we consider fishing ...

open pit mine - Deutsch-Übersetzung – Linguee Wörterbuch

Preparations for the journey from the open pit mine in Bergheim to Hambach took a year and a half, and more than 100 RWE employees made sure that it got started punctually. Traveling at a speed of 0.5 kilometers per hour, the steel giant finally set off on its nearly 20 kilometer odyssey, reaching its new workplace after three months.

2. RECENT OPEN PIT MINE DEVELOPMENTS

RECENT OPEN PIT MINE DEVELOPMENTS Over the past decade the cyclical surface mining has been developing and changing rapidly. The stimulus for this development was provided by consolidation of the equipment manufacturing capacity and heated competition between the remaining manufacturers. Relatively mobile, large hydraulic shovels hav e becom available, abl to develop huge digging forces, mine ...

(PDF) Optimum design of open pit mines - ResearchGate

Optimum design of open pit mines Article (PDF Available) in Bulletin of the Australian Mathematical Society 43(02):349 - 350 April 1991 with 5,114 Reads How we measure 'reads'

(PDF) MineLib: A library of open pit mining problems

Open pit production scheduling problems seek to determine when, if ever, a block is extracted from an open pit mine. A typical objective is to maximize the net present value of the extracted ore ...

1.1 PHASES OF A MINING PROJECT - Home ELAW

1.1.3.1 Open-pit mining Open-pit mining is a type of strip mining in which the ore deposit extends very deep in the ground, necessitating the removal of layer upon layer of overburden and ore. In many cases, logging of trees and clear-cutting or burning of vegetation above the ore deposit may precede removal of the overburden. The

Basics of an open pit mine Mine - familienurlaub-mit

Open pit mines can be used in coal mining, and they are used extensively in "hard rock" mining for ores such as metal ores, copper, gold, iron, aluminum, and many minerals. In a open pit coal mine, the pit bottom would be the bottom mined coal seam elevation, since it is usually feasible to extract multiple seams when surface mining coal.

Reading: Open-Pit Mining Geology - Lumen Learning

Open-pit mining, or open-cast mining is a surface mining technique of extracting rock or minerals from the earth by their removal from an open pit or borrow.. This form of mining differs from extractive methods that require tunneling into the earth, such as long wall mining. Open-pit mines are used when deposits of commercially useful minerals or rocks are found near the surface; that is ...

GEOTECHNICAL CONSIDERATIONS IN OPEN PIT MINES

basic aim of this guideline and of Regulation 13.8. The regulations require that mine management is able to demonstrate that it has adopted "sound practice +" in the field of geotechnical engineering as applied to open pit mining. The use of "sound practice" means that practices and methods will evolve and improve continually. Mine management will recognise that a well managed ground control ...

Glossary of Mining Terminology - First Nations

The Glossary of Mining Terminology is a first attempt to improve Inuktitut terminology in the resource development field. The aim of the glossary is to clarify some technical words associated with resource development using everyday language. The Glossary of Mining Terminology is a living document that will continue to be improved as the industry develops and Inuktitut speakers become more ...

Copper Mining and Processing: Life Cycle of a Mine

Surface mining, which includes strip mining, open-pit mining, and mountaintop removal, removes soil and rock from on top of the mineral deposit. It may begin as soon as the pre-development steps are complete. Underground mining uses shafts and tunnels to access deeply-buried mineral deposits, while the overlying rock is left in place. This type of mining is usually more expensive and complex ...

pwc 2012 Americas School of Mines

2012 Americas School of Mines W Scott Dunbar University of British Columbia pwc Basics of Mining and Mineral Processing. Agenda Geological Concepts Mining Methods Mineral Processing Methods Mine Waste Management Mining and Money A Future of Mining. PwC Mining Methods: The Topics Open pit mining Underground mining Mining equipment Mining operations Mining Methods 3. PwC Waste Open pit ...

Design of openpit mining - LinkedIn SlideShare

Development Sequence-Opening the deposit – Access trench-Box cut – To accommodate all equipment-Mine phases – Depends on the shape of the property-Progress of Benches-Coal production schedules-OB excavation schedulesNote:- Maximize inventory of coal in the initial years -Differ OB stripping requirements as much as possible – Average SR versus natural SR -Income generated in

Alberta rescinds decades-old policy that banned open-pit ...

Alberta is cancelling blanket environmental protections that have been in place since the 1970s and making it easier to develop open-pit coal mines in some of the province's most ecologically ...

Open Pit Mine Scheduling – A Case Study at Bogoso Gold Limited

Open Pit Mine Scheduling – A Case Study at Bogoso Gold Limited Ken ALLEN, Ghana Key words: SUMMARY The main objective of this paper is to describe the process of mine scheduling as is being practiced At Bogoso Gold Limited in its mine planning activities. The Bogoso area has a long and chequered mining history of both open pit and underground workings. Open pit mining operations

17* Open Pit Optimization - Strategies for Improving ...

Open Pit Optimization - Strategies for Improving Economics of Mining Projects Through Mine Planning K.Dagdelen Mining Engineering Department, Colorado School of Mines. Golden, Colorado, USA ABSTRACT: The open pit design and scheduling problem is a large-scale optimization problem that has attracted considerable attention during the last 40 years The development of the "know-how" to

Modern Strategic Mine Planning - Today at Mines

Modern strategic mine planning, a new research initiative at the Colorado School of Mines, seeks to advance the field by introducing four major innovations into the existing framework. The first is the use of appropriate holistic optimization algorithms and solution techniques that consider the entire project. The second is the introduction of stochastics, or uncertainty. Geological and ...

Mining - LKAB

Open-pit mining. Ore is extracted from LKAB's surface mines by means of bench mining. The method is based on mining the ore in descending levels through drilling and blasting. The thickness of the slabs, known as the bench height, is 15 metres, and the slabs are worked downwards. Bench mining is an effective and well established mining method ...

Environmental Risks of Mining

Open pit mining. Open pit mining, where material is excavated from an open pit, is one of the most common forms of mining for strategic minerals. This type of mining is particularly damaging to the environment because strategic minerals are often only available in small concentrations, which increases the amount of ore needed to be mined. Environmental hazards are present during every step of ...

open-pit lignite mine - Deutsch-Übersetzung – Linguee ...

Viele übersetzte Beispielsätze mit "open-pit lignite mine" – Deutsch-Englisch Wörterbuch und Suchmaschine für Millionen von Deutsch-Übersetzungen.

SSR Mining

The Pitarrilla project is a 100% owned grassroots discovery made by SSR Mining in 2002, located approximately 160 kilometres north-northwest of the city of Durango within the State of Durango, Mexico. A paved roadway extends to within 47 kilometres of the plant site. Pitarrilla is a silver, lead, and zinc project, which will consist of a large open-pit mainly recovering oxidized ores in the ...

The Advantages of Open Pit Mining Sciencing

Because an open pit mine is open to the air larger machinery can be used to operate the mine. This is a real advantage to mining companies who often use large trucks to carry debris away from the mine. According to Caterpillar Corporation the model 777 off road truck commonly use in open pit mines can carry a payload of 200,000 pounds.

The World's 20 Largest Copper Mines - ThoughtCo

The world's 20 largest copper mines produce nearly 9 million metric tons of the precious metal a year, about 40% of the world's total copper mine capacity. Chile and Peru, alone, account for more than half of the copper mines on this list. The U.S. makes the cut, as well, with two mines among the top 20.

History of mining: five of the oldest mines still in

The Chuquicamata copper mine, known more commonly as ‘Chuqui’, is the world’s largest open pit copper mine by excavated volume.Located at Calama in northern Chile, archeologists have found evidence of its first excavation by Incan and Spanish explorers. In the modern era, the history of mining Chuqui goes back to the late 19th century.

Firestone Diamonds Liqhobong

Completed DFS which set out the basis for an open pit mine with a 15 year life, producing 3.6 million tonnes per annum, yielding in excess of 1 million carats ; 2013. Restructuring in place, new CEO, Stuart Brown joined Firestone Diamonds; Production suspended immediately; Update the DFS, revalidated initial capital expenditure for the Project and confirmed economics for Liqhobong; 2014 ...

Risk assessment workbook for mines - DRE Redirect

Risk assessment workbook for mines Metalliferous, extractive and opal mines, and quarries IGA-019 December 2009 Mine Safety Operations Version 5.0 Page 1 of 64 Document controller: Mathew Barnes IGA-019 (TRIM: OUT09/16488) December 2009. Disclaimer . The compilation of information contained in this document relies upon material and data derived from a number of third party sources and is ...