Surface Mining Methods


Surface mining - Wikipedia

Surface mining, including strip mining, open-pit mining and mountaintop removal mining, is a broad category of mining in which soil and rock overlying the mineral deposit (the overburden) are removed, in contrast to underground mining, in which the overlying rock is left in place, and the mineral is removed through shafts or tunnels


A Brief Introduction to the Types of Surface Mining Methods

Mar 08, 2018 · These surface mining methods are considered to be more efficient and economical in extracting minerals as compared to most methods of underground mining In fact, it can extract almost 90% of ore from a deposit For this reason, surface mining is the most widely used method …


Surface Mining Methods and Equipment

1 Surface Mining Methods After a mineral deposit has been discovered, delineated, and evaluated, the most appropriate mining method is selected based on technical, economic, and environmentally accountable considerations The first step in selecting the most appropriate mining method is to compare the economic efficiency of extraction of the


Surface Mining Methods - ILO Encyclopaedia

Solution Mining Methods Also known as leaching or surface leaching, this technique can be a primary mining method, as with gold and silver leach mining, or it can supplement the conventional pyrometallurgical steps of smelting and refining, as in the case of leaching low-grade copper oxide ores


(PDF) Mining Methods: Part I-Surface mining - ResearchGate

Mining Methods: Part I-Surface mining • Surface Mining : overburden (soil and r ock on top of • Used when ore bodies lie near • Large hole e xposes the ore • W aste r ock (overbur den) is • Mine working open to the surfac e • Funnel shaped hole in ground, with ramp spiraling down •


SURFACE MINING METHODS - WordPress

SURFACE MINING METHODS REFERENCE: BULLIVANT, DA Current Surface Mining Techniques Journal for the Transportation of Materials in Bulk: Bulk Solids Handling, vol 7, n6, December 1987, pp827-833 21 Ore reserves Suitable for Surface Mining Ore reserves suitable for surface mini ng can be classified initially as;


Surface mining | Britannica

This process is called surface mining and was widely used as a method for extracting coal in the Ohio River valley and in England This technique is also used for mining phosphate deposits, gypsum, gravel, limestone, copper, iron, and other minerals The overburden removed to expose the mined …


What is Surface Mining? (with pictures) - wisegeek

May 13, 2019 · Surface mining is a method of mining used to extract minerals and metals which are near the surface of the Earth There are three basic types of surface mining: open pit mining, strip mining, and quarry mining These methods are much more economical than underground mining, yet they can have a more significant impact


Topic 5: Mining Methods-Part I-Surface mining

Nov 02, 2011 · Topic 5: Mining Methods-Part I-Surface mining 1 Topic 5: Mining Methods Part I-Surface mining Hassan Z Harraz [email protected] 2010- 2011 Prof Dr HZ Harraz Presentation This material is intended for use in lectures, presentations and as handouts to students, and is provided in Power point format so as to allow customization for the individual needs of course …


CHAPTER 11 Mining Technology - Princeton University

surface mining and reclamation techniques and equipment include the thickness and character of the overburden, the dip of the seam, the thickness and number of recov-erable seams, and the physical and stone characteristics of the coal The three surface mining techniques most widely used in the West are area strip, open pit, and terrace pit


Surface Mining Methods | Coal Mining (18K views)

3 5 Explain the following terms with the aid of sketches You should consider four surface mining methods in your answer and show which methods may be combined and under what circumstancesand terrace mining methods (a) Overall slope angle (b) Bench stack slope angle 5and immediate (variable) stripping ratio (S’)


What are main methods of surface mining? - Quora

Nov 09, 2017 · What are main methods of surface mining? Strip Mining "Strip mining" is the practice of mining a seam of mineral, Open pit mining " Open-pit mining " refers to a method of extracting rock or minerals from Mountaintop removal The technique has been used increasingly in recent years in


Mining - Wikipedia

Additional sub-surface mining methods include hard rock mining, which is mining of hard rock (igneous, metamorphic or sedimentary) materials, bore hole mining, drift and fill mining, long hole slope mining, sub level caving, and block caving


What Is Surface Mining? | Convergence Training

The Definition There are 5 main types of surface mining, which are used in various degrees and for different resources These mining categories are: strip mining, open-pit mining, mountaintop removal, dredging and high wall mining All methods of surface mining will remove the waste material, or …


Surface Mining Techniques used in the Oil Sands | Oil

Learn more about surface mining techniques used in the oil sands Surface mining is defined as the extraction of ore from an open pit or burrow Surface mining is sometimes known as open-pit, open-cut or open-cast mining and is only commercially viable if the deposit is located relative close to the surface


The Actual Difference Between Surface and Underground Mining

Feb 23, 2018 · Surface mining can be accomplished by the following main methods: Open-pit Mining: Removing ore to leave a crater Quarrying: An open-pit mine for construction materials Strip Mining: Ore is removed in parallel strips Mountaintop Removal: Top of a mountain is blasted to remove deep ore Dredging: Ore is removed from a river bottom


Surface Mining, Industry of Metals, Minerals, Precious

The most important method used to extract the minerals from the earth is surface mining It is surprising to notice that 70 percent of the minerals extracted from the earth are through this process The basic material used for construction purposes like crushed rocks, sand and gravel is obtained through this method


Extraction of Resources | Geology

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


Topic 5: Mining Methods-Part I-Surface mining

Nov 02, 2011 · Mining Methods, Surface Mining Methods, Mechanical and aqueous surface mining methods Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising If you continue browsing the site, you agree to the use of cookies on this website


CHAPTER 11 Mining Technology - Princeton University

surface mining and reclamation techniques and equipment include the thickness and character of the overburden, the dip of the seam, the thickness and number of recov-erable seams, and the physical and stone characteristics of the coal The three surface mining techniques most widely used in the West are area strip, open pit, and terrace pit Area Strip


SURFACE MINING METHODS AND EQUIPMENT - academiaedu

The first step in selecting the most appropriate mining method is to compare the economic efficiency of extraction of the deposit by surface and underground mining methods This section reviews surface mining methods and practices 11 Classification of Surface Mining Methods Extraction of mineral or energy resources by operations exclusively involving personnel working on the surface without …


Mining - examples, body, used, water, process, Earth, life

Surface mining is generally a much preferred approach to mining because it is less expensive and safer than subsurface mining In fact, about 90 percent of the rock and mineral resources mined in the United States and more than 60 percent of the nation's coal is produced by surface mining techniques


Mining Techniques | Geology for Investors

Surface mining techniques are generally cheaper than subsurface mining techniques The closer a deposit is to the surface the cheaper it will be to extract The ideal situation is a deposit close enough to the surface to that it can be removed by the open-pit method


mining methods impact backgrou - …

In general, mining techniques are divided into two primary types: surface mining (including pit, strip, and mountain top removal) and underground mining (shaft) A single mine may employ both methods Prior to 1900, underground mining was the most common method in the United States


Surface Mining Methods - ILO Encyclopaedia

Conventional Methods of Surface Mining Open-pit mining and strip mining are the two major categories of surface mining which account for more than 90% worldwide surface mining production The primary differences between these mining methods are the location of the ore body and the mode of mechanical extraction


Mining Methods - Rhino Resource Partners

Mining Methods Coal is mined using one of two methods, underground or surface mining Underground Mining Underground mines in the United States are typically operated using one of two different methods: room and pillar mining or longwall mining In room and pillar mining, rooms are cut into the coal bed leaving a series of pillars, or columns


Mining Techniques | Geology for Investors

Mining Techniques Surface mining consists of stripping soil and vegetation away and possibly a limited amount of rock and then removing ore in large quantities Conversely, subsurface mining involves sinking a mineshaft and digging tunnels to reach a deposit at depth These two broad categories encompass almost all mining techniques and will be discussed in detail


Surface mining - Wikipedia

Surface mining, including strip mining, open-pit mining and mountaintop removal mining, is a broad category of mining in which soil and rock overlying the mineral deposit (the overburden) are removed, in contrast to underground mining, in which the overlying rock is left in place, and the mineral is removed through shafts or tunnels


Surface Mining Market to Reach USD 3292 Billion By 2026

May 28, 2019 · Surface mining is a kind of mining in which mineral deposits are collected by removing overlying rock and soil The initial type of surface mining methods includes open-pit mining, strip mining


Surface Coal Mining in Appalachia | US EPA

Coal is mined in Appalachia by both surface and underground mining techniques Surface coal mining methods in the steep terrain of the central Appalachian coalfields include mountaintop removal, contour, area and highwall mining Coal mining operations are found in Kentucky, West Virginia, Virginia


Surface Coal Mining Methods in Australia - …

Surface Coal Mining Methods in Australia 7 Fig 4 Dragline Working Section (Gianazza, 2010) Fig 5 Box cut, strip cuts and spoil piles (Humphrey, 1984) mining access are either taken through the over burden dump as a valley, dozed through the spoil pile parallel to the strip, created in the highwall either parallel or at right angles to the


Brief History of Mining & Advancement of Mining Technology

Mining Technology in the Present In today’s technologically-advanced society, mining techniques are always improving For example, using surface mining techniques, miners are now able to extract over 85 percent of minerals and 98 percent of metallic ores without digging a shaft or …


Surface mining _____ is more destructive than underground

Surface mining _____ is more destructive than underground mining is a method of obtaining coal is a method of obtaining natural gas permanently destroys the environment Surface mining permanently destroys the environment It is a broad type of mining in which soil and rock over the mineral deposit are removed It is a method used to mine coal near the surface of the Earth It makes use of hydrological …


Appendix E: Coal Mining and Processing Methods | Coal

Underground Mining Even in mines where the longwall method is the principal extraction method, the development of the mine and the longwall panels is accomplished by room-and-pillar continuous mining The thickness of the coal seam, the depth and inclination of the …


INTRODUCTION TO MINING - Ciência Viva

INTRODUCTION TO MINING 11 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


What Are the Different Types of Mining? | Reference

What Are the Different Types of Mining? The two main types of mining are surface mining and underground mining Mining is further divided into several other categories including room and pillar mining, slope mining, block caving, quarrying, open-pit mining and in situ mining


Mining - YouTube

Oct 29, 2015 · 019 - Mining In this video Paul Andersen explains how mining is used to extract valuable minerals from the Earth's crust Surface and subsurface mining are used to …


Basic Information about Surface Coal Mining in Appalachia

Large scale earth moving equipment is used to excavate and remove coal from lower layers The equipment used depends on the method and scale of the surface mining method being employed Regrading begins as coal excavation continues Once coal removal is complete, final regrading takes place and the area is revegetated