Overburden - Environment | McArthur River Mine

Overburden is the natural rock and soil that sits above and around the ore body. It is not subject to any chemical processes at the mine but needs to be removed to allow access to the ore. For every tonne of ore we mine, there are around seven tonnes of overburden which are moved to an area called the Overburden Emplacement Facility (OEF), or ...

Disturbances affect coal supply, overburden removal in MCL ...

13 · MCL said that at least 6,000 tonne coal supply and 5,000 cubic meter of overburden removal work were affected due to two incidents of work disturbances recently at its Talcher colliery.

Overburden removal at Limestone Mine Togo - YouTube

Jan 04, 2015· This feature is not available right now. Please try again later.

Thar Coal Project Update by Sindh Engro Coal Mining ...

Jun 06, 2016· Post FC on 4th April, 2016: Rigorous work has been started by the Chinese Contractor. You will find the Overburden Removal from mine, update …

Coal Mining Mineral companies in India - BGR Mining

BGR is an Indian Mining Company, Specialized in OB Removal, Coal, Lignite Extraction and Transportation. Recently it has Entered into arena of Mine Developer and Operator (MDO) in mining industry. We serve thermal coal operations in 15 sites across regions in India. This also creates a definite strategic advantage for our production and output ...

Current Projects - Petrosea

About the project. In June 2014, Petrosea and PT Indonesia Pratama, a subsidiary of PT Bayan Resources Tbk., signed an agreement for overburden removal, coal mining services, equipment rental and coal transportation at the Tabang site, Kutai Kartanegara, East Kalimantan.

Surface Coal Mining and Reclamation | ArcNews

Surface Coal Mining and Reclamation. Surface coal mining involves disturbing overlying rock layers (overburden) to expose and extract coal reserves using the area mining method wherein the overburden above the uppermost coal seam and the innerburden between the lower coal seams are removed in parallel strips (pits) across the coalfield until the area is mined.

Mining Excavation Methods

In the previous topic, we saw that blasting is the mining operation used to break the rock mass in order to facilitate the removal of the overburden. We saw that some of the main equipment used to remove the overburden are truck lines, trucking shovels, excavators. In this topic, we will look at some of the characteristics of these excavation metals, and at which deposits they are more suited.

Coal India's production declines on overburden removal ...

Owing to a delay in the finalisation of overburden removal contracts and land issues, Coal India's production during May this year, fell by 1.1 per cent to 46.59 million tonnes (mt) as the miner was able to produce around 1.5 mt of coal daily. Overburden removal refers to the removal of top-soil ...

Strip Mining - an overview | ScienceDirect Topics

S.K. Haldar, in Mineral Exploration, 2013. 11.2.2 Shallow Deposits. Strip mining process is most suitable for fairly flat shallow single-seam coal, lignite and other bedded deposits. The mineral layer is covered by an even thickness of overburden composed of soft topsoil and weathered rocks in succession.

Overburden Removal - Surface Mining - SlideShare

Jul 21, 2017· Overburden Removal - Surface Mining 1. 6.3 Overburden Removal GEORGE E. AIKEN JOHN W. GUNNETT GENERAL OVERVIEW Any evaluation of a specific need for overburden removal requires that the engineer first be aware of the various des- ignations ofoverburden, the state-of-the-art removal systems, and methods to transport these materials to permanent dep- osition areas.

Coal mining - Wikipedia

Coal mining is the process of extracting coal from the ground. Coal is valued for its energy content and since the 1880s, has been widely used to generate electricity. Steel and cement industries use coal as a fuel for extraction of iron from iron ore and for cement production. In the United Kingdom and South Africa, a coal mine and its structures are a colliery, a coal mine - a pit, and the ...

Plundering Appalachia - The Tragedy of Mountaintop-Removal ...

Mountaintop-removal mines in Appalachia are estimated to produce just 5 to 10 percent of total U.S. coal production, and generate less than 4 percent of our electricity—an amount that could be eliminated from the energy supply with small gains in energy efficiency and conservation.

Overburden | geology | Britannica.com

In coal mining: Shovels and trucks. Overburden removal is the most important operation in the system. When the haul distances are small (for example, 500 to 1,000 metres) and the overburden material soft, a fleet of scrapers can load, haul, and dump the overburden. Where distances are very small (for example,… Read More

Mountaintop removal mining - Wikipedia

Mountaintop removal mining (MTR), also known as mountaintop mining (MTM), is a form of surface mining at the summit or summit ridge of a mountain. Coal seams are extracted from a mountain by removing the land, or overburden, above the seams. This method of coal mining is conducted in the Appalachian Mountains in the eastern United States.

Mining Process | BNI Coal

Overburden removal can begin after topsoil and subsoil have been removed. In areas of thick overburden, a hydraulic excavator and a fleet of end dump trucks are used to remove part of the overburden prior to dragline operations. The excavator and truck overburden removal step was introduced into BNI's mining process in 2012.

Surface mining - Wikipedia

"Strip mining" is the practice of mining a seam of mineral, by first removing a long strip of overlying soil and rock (the overburden).It is most commonly used to mine coal and lignite (brown coal).Strip mining is only practical when the ore body to be excavated is relatively near the surface.

Mining – Sical

Tubed. Quantity: 6 Million tons of coal per annum and Removal of Overburden as per the Stripping ratio Duration: Estimated 20+ years Estimated Value: INR 10,000 Crores In JV with majority ownership stake; Status: Execution to Commence

Colliery: How Coal Mining Works? - scienceabc.com

Surface mining and underground mining are the two major schools of coal mining. To qualify for surface mining, the coal deposits must be within 50-80 meters of the surface. The job of a miner primarily involves removing 'overburden'— rock, soil, trees etc. – that mix with the coal deposits and cover them near the earth's surface.

Surface Coal Mining Methods in Australia - InTech

Surface Coal Mining Methods in Australia 5 2. Open cut mining methods strip mining Large-scale open cut coal mining operations commenced in Australia in mid 1960s and since then there has been significan t developments in this method of mining. The mines are now operating at significantly higher annual tonnages, growing deeper, more complex and

Coal mine overburden removing excavator - Germany 2013 ...

Feb 19, 2014· Coal mine overburden removing excavator - Germany 2013 Frode Dragseth. ... Beaver dam removal with excavator - Duration: ... Coal Mining in Appalachia - Duration: ...

Coal mining - Choosing a mining method | Britannica.com

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 …

Red River Mine - SourceWatch

{{#Badges: CoalSwarm}}Red River Mine is operated by the Red River Mining Company, a subsidiary of The North American Coal Corporation.The mine is in Coushatta, Louisiana, and began production in 1989. The mine delivers approximately 700,000 tons of coal per year, particularly to American Electric Power (AEP) and Cleco Power LLC. The mine utilizes dragline for overburden removal, and …

Overburden - an overview | ScienceDirect Topics

In a coal mine, the regular arrangement of the coal seams is seen to be that in levels numbered from zero to 'n' going from bottom to top. Each coal seam alternates with an interburden and hence all mining activities give rise to a substantial amount of overburden …

Overburden - Wikipedia

Overburden at a coal mining site. In mining, overburden (also called waste or spoil) is the material that lies above an area that lends itself to economical exploitation, such as the rock, soil, and ecosystem that lies above a coal seam or ore body.

overburden removal - Traduction française – Linguee

Overburden removal costs increased in the second quarter and first half of 2006 compared to the same 2005 periods as the Stage 3 shutdown reduced bitumen requirements and additional resources were directed to overburden removal.

How to value overburden removal in mining? | Yahoo Answers

Mar 27, 2009· Can someone tell me how to value the removal of overburden in a coal mine, for instance? Essentially, this is just dirt. What value does it have? E.g. is it valued the same way as ore since you need to remove it in order to get to the ore? Any ideas?

(PDF) A review on existing opencast coal mining methods ...

Mining equipments such as draglines, dredgers or bucket wheel excavators, trucks and shovels, and dozers are the main equipments employed for overburden removal and coal extraction.