strip mining methods of extraction

  • Coal Types, Formation and Methods of Mining

    Coal Types, Formation and Methods of Mining

    When retreat mining is completed, the mined area is abandoned. There are two types of room and pillar mining–conventional mining and continuous mining. Conventional mining is the oldest method and accounts for only about 12% of underground coal output. In conventional mining, the coal seam is cut, drilled, blasted and then loaded into cars.

  • 5 Chief Pros and Cons of Strip Mining – ConnectUS

    5 Chief Pros and Cons of Strip Mining – ConnectUS

    Sep 24, 2015· Usually, strip mining is employed in mining tar sand and coal. It's a method referred to as open cast, open cut or stripping. First, the trees, shrubs and other structures in the area to be mined are removed – a task accomplished with heavy duty bulldozers.

  • MINING METHOD OF THE WEEK STRIP MINING!!

    MINING METHOD OF THE WEEK STRIP MINING!!

    Jul 12, 2019· Strip mining, removal of soil and rock (overburden) above a layer or seam (particularly coal), followed by the removal of the exposed mineral. The common stripmining techniques are classified as area mining or contour mining on the basis of the deposit geometry and type.

  • How Is Coal Extracted? |

    How Is Coal Extracted? |

    Underground mining is another method of coal extraction that involves extracting coal that is buried several hundred feet below the surface. In underground mining, miners use elevators to travel deep into line shafts where they use machines that dig out the coal.

  • Gold Mining Methods Ground Truth Trekking

    Gold Mining Methods Ground Truth Trekking

    Gold Mining Methods Last Modified: 4th November 2014 ... Other hardrock mines are large strip mines that remove the surface dirt and rock and then extract the ore from the resulting open pit. Removal of ore is often accomplished explosives, enormous power shovels, ... Gold mining in Alaska.

  • methods of extracting bauxite

    methods of extracting bauxite

    method of bauxite mining . The Bayer process, still economically the most feasible method for extracting aluminum from bauxite ore, involves mining, dissolving the alumina at an elevated. Get Now. Mining ElminBauxites. Ninety per cent of bauxite mining operations are conducted by underground mining methods.

  • Any alternative mining methods? | Yahoo Answers

    Any alternative mining methods? | Yahoo Answers

    Jan 13, 2008· Okay "Alternative Mining Methods" Alternative as opposed to what? Current mining methods include underground tunnels, underground "block caving", open pit mines, strip mines, etc. Underground tunneling generally is the least "disturbing" to the area around it, because miners are following an ore vein.

  • methods of mineral extraction coal in china

    methods of mineral extraction coal in china

    Digging deeper: Mining methods explained – Anglo American The underground mining methods we use include room and pillar, narrow vein stoping and largescale mechanised mining. Room and pillar mining is a style of mining where tunnels are driven in a chess board pattern with massive square pillars between them which are gradually cut away as the work proceeds.

  • methods of mineral extraction coal in china

    methods of mineral extraction coal in china

    The underground mining methods we use include room and pillar, narrow vein stoping and largescale mechanised mining. Room and pillar mining is a style of mining where tunnels are driven in a chess board pattern with massive square pillars between them which are gradually cut away as the work proceeds. We use this for mining coal. Chat With Sales

  • SURFACE MINING METHODS YouTube

    SURFACE MINING METHODS YouTube

    Sep 15, 2019· SURFACE MINING METHODS What is Mining? The extraction of valuable mineral from the Earth with economical value and safety is termed as MINING. Types of Minin...

  • Mining | The Canadian Encyclopedia

    Mining | The Canadian Encyclopedia

    May 22, 2019· Processes. These methods, also known as strip mining or openpit mining, remove surface material, or overburden, to reveal extensive, lowgrade deposits. The removal of vegetation and soils and the creation of massive pits by opencast mining make it controversial as a source of landscape degradation and water pollution.

  • An Overview of the Open Pit Mining Process ...

    An Overview of the Open Pit Mining Process ...

    Mar 02, 2016· Openpit mining which is sometimes referred to as open cut mining, opencast mining or simply strip mining is a mining technique that extracts important minerals from a borrow or an open pit. There are two types of mining methods commonly used .

  • SURFACE MINING METHODS YouTube

    SURFACE MINING METHODS YouTube

    Sep 15, 2019· SURFACE MINING METHODS What is Mining? The extraction of valuable mineral from the Earth with economical value and safety is termed as MINING. Types of Mining 1. Underground Mining .

  • An analysis of strip mining methods and equipment ...

    An analysis of strip mining methods and equipment ...

    An analysis of strip mining methods and equipment selection; a report submitted to the Office of Coal Research, Dept. of Interior,

  • How Does Mining Affect the Environment | LoveToKnow

    How Does Mining Affect the Environment | LoveToKnow

    Consider the example of coal extraction through strip mining. Strip Mining of Coal. Coal is mined by strip and underground mining. Strip mining is more harmful as larger tracts of land is affected, but is favored by the industry as it is cheaper reports Greenpeace. So 40% of the world's coal is obtained by strip mining.

  • MINING METHOD OF THE WEEK STRIP MINING!!

    MINING METHOD OF THE WEEK STRIP MINING!!

    Jul 12, 2019· Strip mining, removal of soil and rock (overburden) above a layer or seam (particularly coal), followed by the removal of the exposed mineral. The common stripmining techniques are classified as area mining or contour mining on the basis of the deposit geometry and type.