disadvantage of open pit mining ppt

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1 1 PHASES OF A MINING PROJECT

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

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Optimization of the fleet per shovel productivity in

been mined The aspect of the mining operation which has the most influence on profit is the cost of materials handling This paper focusses on developing an oriented algorithm that can be used during the calculation of shovel productivity as well as fleet production management for an open pit mine

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Gold Mining and its Environmental Impacts

mining This open-pit mining technique requires the removal of just the outermost layer of bedrock above the gold deposit The gold can than be refined through a series of chemical processes (Hill 1999) The more invasive underground lode mining requires Gold Mining and its Environmental Impacts

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Optimization of the fleet per shovel productivity in

been mined The aspect of the mining operation which has the most influence on profit is the cost of materials handling This paper focusses on developing an oriented algorithm that can be used during the calculation of shovel productivity as well as fleet production management for an open pit mine

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Disadvantages Of Open Pit Mining

Popular Searches 11 PHASES OF A MINING PROJECT ELAW the disadvantages of open pit mining 11 PHASES OF A MINING PROJECT Openpit mining is a type of strip mining in which the ore deposit extends very deep in the disadvantages of open pit mining rudimentalscozaOpen pit mining is the process of mining

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OPTIMISATION OF OPEN PIT MINE BLOCK SEQUENCING

ii optimisation of open pit mine block sequencing Abstract An important stage in openpit mining is to determine the optimal sequence of block extraction which affects mining profitability considerably problem which A arises in this stage pit mine block sequencing problemopen is defined in order to

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Open Cast Mining Advantages

In the previous topic we saw which are some of the advantages that can make the surface open pit mining methods superior method compared to the underground mining However underground mining has its own advantages And finally the ultimate decision to mine from the surface or from underground comes down to the specific characteristics of the deposit In particular mineral deposits can

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Open Pit Mining by Madison Bangs on Prezi

Open Pit Mining Opinion The Consumer Benefits (the cost of this type of mining is lower which impacts the consumer) Contamination of the Environment (this form of mining destroys landscape and can pollute nearby soil and water systems) Open Pit Mine after a landslide had taken

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Underground v s Surface Coal Mines Is Deep Drilling

Strip mining is sensible when the ore body is near the surface The practice includes some of the largest machines on earth removing long strips of overlying soil and rock and then removing coal deposits Open-pit mining utilizes blasting and mineral removing digger deeper into

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2012 Americas School of Mines

Open pit mining Mining Methods 5 Open pit mines are used to exploit low grade shallow ore bodies However some pits are quite deep – about 1 km The mining rate is greater than 20 000 tonnes per day (tpd) but is usually much greater Some pits operate at a rate of more than 100 000 tpd

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OPEN

fed to the plant Open cast Mineral Resources are quoted as in-situ tonnages and Mineral Reserves are tonnages falling within an economic pit-shell The evaluation method is generally Ordinary Kriging with mining block sizes ranging from 10 x 10m to 100 x 100m to 250 x 250m in the plan view The blocks vary in thickness from 2 5

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Determination of Optimum Production Capacity and Mine Life

and processing capacity Sevim and Lei [10] described open pit ultimate limits the cut-off grade the mining sequence and the production rate interactions The methodology in their study based on a combination of optimum mining sequence ore and waste production ultimate pit limits and mine life In all possible sequences

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Open

Open-pit mining methods are applicable to mining ore deposits that apex at or near the surface If the deposit apexes below the surface the overburden and barren capping overlying the ore must be removed in advance of open-pit mining The removal of this material is known as stripping

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Heuristic Approximations for Closed Networks A Case

Heuristic Approximations for Closed Networks A Case Study in Open-pit Mining Hans Daduna Ruslan Krenzler Robert Rittery Dietrich Stoyanz 25 March 2016 We investigate a fundamental model from open-pit mining which is a cyclic system consisting of a shovel traveling loaded unloading facility and traveling back empty

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The Advantages of Open Pit Mining

Mar 13 2018Open pit mining does offer some advantages over traditional deep shaft mining Pit mining is more cost effective than shaft mining because more ore can be extracted and more quickly The working conditions are safer for the miners because there is no risk of cave in or toxic gas Open pit mining is the preferred

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Equipment Selection for Surface Mining A Review

however for large-scale open pit mining in particular the truck and loader material movement practice is the preferred method of materials handling (Czaplicki 1992 Ta et al 2005) Throughout this paper we consider a loader to be any type of high productivity excavating equipment which may include a mining loader shovel or excavator

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Blog

May 22 2014Mine dewatering techniques Dewatering and groundwater control is an important part of many open pit and underground mines Effective dewatering is a pre-requisite for safe and efficient mining Poorly controlled groundwater will waste money slow down mining and potentially cause adverse environmental impacts However techniques are available to successful control groundwater

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Open Pit Mining (1)

Open-pit mining is surface mining in which huge portions of earth are dug from the surface to extract the desired mineral within them During the mining process the land face is scraped away by explosives and digging creating a deeper and deeper pit until the mining is complete The final shape of the open pit is decided before excavation begins

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Case Examples of Open Pit Mine Drainage

Case Examples of Open Pit Mine Drainage by 0 L Pentz Vice President Golder Associates Kirkland Washington USA The methods of optimizing slope angles of open pit mines are limited Reduction in the natural groundwater pressures is perhaps the most significant method available to the mine designer

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Equipment Selection for Surface Mining A Review

however for large-scale open pit mining in particular the truck and loader material movement practice is the preferred method of materials handling (Czaplicki 1992 Ta et al 2005) Throughout this paper we consider a loader to be any type of high productivity excavating equipment which may include a mining loader shovel or excavator

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Basics of openpit mining

Mar 13 2012What 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 •

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Industrial Solutions Mining

08 Open pit mining equipment and systems 09 Expert processing is the link between the mined raw material and an optimum product for further use Different jobs call for different solutions which we custom design using our unique expertise and extensive product portfolio

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GG o f Journal of Geology Geophysics Aloui et al Geol

Ground Vibrations and Air Blast Effects Induced by Blasting in Open Pit Mines Case of Metlaoui Mining Basin Southwestern Tunisia Monia Aloui 1* Yannick Bleuzen 2 Elhoucine Essefi3 and Chedly Abbes 1Faculty of Sciences of Sfax Road Soukra Sfax 3038 Tunisia

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Digging deeper Mining methods explained

Open-pit mining is practical when the ore-bodies of the rock are large and located closer to the surface Advantages of open-pit mining include Powerful trucks and shovels can be used to move large volumes of rock Equipment not restricted by the size of the opening you are working in

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Case Studies of Successfully Reclaimed Mining Sites

A truly unique reclamation project is underway near Cottbus State of Brandenburg Germany at a location called Huehnerwasser (Chicken Creek) where there was previously an open pit mine This site is owned by the Swedish mining company Vattenfall Europe Mining AG which is producing lignite in the region and is also responsible for restoration

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MICROBIAL MINING

train from open-pit copper mines to the dump site The dump is often built in a valley to take advantage of natural slopes for maintaining the stability of the pile and for facilitating the recovery of the applied solutions Such a dump can be immense with slopes up to

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INTRODUCTION TO MINING

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

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A REVIEW OF THE DESIGN CRITERIA AND PRACTICAL

The South African Institute of Mining and Metallurgy International Symposium on Stability of Rock Slopes in Open Pit Mining and Civil Engineering Simon St J Tose _____ Page 525 A REVIEW OF THE DESIGN CRITERIA AND PRACTICAL ASPECTS OF DEVELOPING A SUCCESSFUL PRE-SPLIT Simon St J Tose African Explosives Limited ABSTRACT

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2012 Americas School of Mines

Open pit mining Mining Methods 5 Open pit mines are used to exploit low grade shallow ore bodies However some pits are quite deep – about 1 km The mining rate is greater than 20 000 tonnes per day (tpd) but is usually much greater Some pits operate at a rate of more than 100 000 tpd

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OPEN

fed to the plant Open cast Mineral Resources are quoted as in-situ tonnages and Mineral Reserves are tonnages falling within an economic pit-shell The evaluation method is generally Ordinary Kriging with mining block sizes ranging from 10 x 10m to 100 x 100m to 250 x 250m in the plan view The blocks vary in thickness from 2 5

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