Jan 09, 2016· Surface Mining methods (Open pit Mining method) 2 February 2016 Prof. Dr. H.Z. Harraz Presentation Mining Methods, Surface mining Figure shows Open pit Mining method 9. open pit mining: funnel shaped hole in ground, with ramp spiraling down along sides, allows moderately deep ore to be reached.

When coal seams are near the surface, it may be economical to extract the coal using open cut also referred to as open cast, open pit, mountaintop removal or strip mining methods. Opencast coal mining recovers a greater proportion of theopencast coal mining ppt pielgrzymkifranciszkanie.plPPT Coal Mining in India 2015 PowerPoint Presentation ...

Open Cast Mining Advantages. Open Cast Mining Advantages. Previous Next. 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.

Open-pit mining, also known as open-cast or open-cut mining and in larger contexts mega-mining, is a surface mining technique of extracting rock or minerals from the earth from an open-air pit, sometimes known as a 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 …

Feb 14, 2014 ... open pit quarry for surface mine design More details: ... the free encyclopediaopen-pit mining, open-cut mining or opencast mining is a surface... Read more open pit design and scheduling - it solution for longterm mine planning

The open-pit or open cast mining method is the obvious choice for a property with wide area of mineralization exposed or exists close to the surface and continues to greater depth. The open pit is opening the orebody from the surface by separate removal of ore and associated waste rocks. It is the most economic option for a deposit up to that ...

Open-pit mining, also known as opencast mining, is a surface mining technique that extracts minerals from an open pit in the ground. Open-pit mining is the most common method used throughout the world for mineral mining and does not require extractive methods or tunnels. This surface mining technique is used when mineral or ore deposits are ...

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 …

CIVIL ENGINEERING – Vol. II - Surface Mining Methods and Equipment - J. Yamatomi and S. Okubo 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, leaching, stripping ratio, mining machinery, …

Oct 16, 2015· • Surface mining is also know as, Open pit, Open cast and Strip Mining. • Sump should be located at the bottom of the Mine . • Height and width of the bench . • Drilling and blasting . 6. SURFACE MINING 7. METHOD OF SURFACE MINING INCLUDES • Open-pit mining: Which is the recovery of materials from an open pit in the ground .

opencast coal process. Zith is quite experienced in construction, milling and mining industry. Requirements like customized design, advanced equipments and faultless service are available. Inquire Now; DEWATERING TECHNIQUES.ppt Mining Pump. DEWATERING TECHNIQUES. DEWATERING TECHNIQUES. ... Documents Similar To DEWATERING TECHNIQUES.ppt. ...

common to both open cast and underground mining operations.) Open cast mining involves the removal of ore from seams relatively near the surface by means of an open pit (see figure below). These mines often occupy a large area of land for excavation of the ore and disposal of the overburden (the waste rock lying over the ore). This kind of ...

"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* plan is a necessary component of any successful mining project.

Jun 27, 2020· OPENCAST MINING || MINING METHOD || Khanan ज्ञान Advantage opencast workingDisadvantage opencast workingFactors affecting o/c workingImportant terms related ...

2 February 2016. The choice of mining method depends on man y fact ors, including: 1) Shape of the orebody (i.e., t abular, cylindrical, spheric al). 2) Orienta tion of the orebody (i.e., sub ...

OPEN CAST MINING METHOD Open Cast Mining Method • Open cast mining is a surface exploitation method, used mainly for coal. It resembles open pit mining but differs in one unique respect: The overburden is not transported to waste dumps for disposal but cast or hauled directly into adjacent mined-out panels.

Coal Mining-Methods. Mining Methods Coal is mined by two main methods surface or opencast mining and underground mining.. The choice of method is largely determined by the geology of the coal deposit; the majority of the world's coal reserves are recoverable by underground mining. The method used is determined by the depth of coal deposit and the …

Opencast mining or quarrying of minerals is easier than mining by underground methods. During quarrying the alluvium and rocks below which the minerals lie, are removed and dumped, in the initial stages, in a place which is not required in future for quarrying, residential or other purposes. The mineral exposed is completely extracted.

Open-cast Mining Method - Free download as Powerpoint Presentation (.ppt), PDF File (.pdf), Text File (.txt) or view presentation slides online.

Mining Methods Ppt Presentation. 20 Aug 2010 … Mining Methods Ppt Presentation – A PowerPoint presentation. … Methods Coal is mined by two main methods – surface or 'opencast' mining … »More detailed

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.

A. lt is a opencast mining method. B. lt is a underground mining method. C. lt is a mining method, which is used for coal winning. D. lt is a underground mining method used for small rich ore bodies. 9. Strip mining is a method of: A. Underground mining. B. Opencast mining with a high degree of mechanization. C. Horizon mining. D. Long wall ...

Jul 31, 2017· Open pit mining 1. 1 OPEN PIT MINING by Prof. A. Balasubramanian Centre for Advanced Studies in Earth Science UNIVERSITY OF MYSORE MYSORE-6 2. 2 Introduction Open pit mining is the process of mining a near surface deposit by means of a surface pit excavated using one or more horizontal benches.

LONGWALL MINING This method of mining has proven to be more efficient than room and pillar mining, with a recovery rate of nearly 75 percent, but the equipment is more expensive than conventional room and pillar equipment, and cannot be used in all geological circumstances. As mining continues, roof bolts are placed in the ceiling to avoid ceiling collapse.

SURFACE MINE DESIGN 1. Izhar Mithal Jiskani. BACKG ROUND. The method of mining is unique for each different size and each shape of the ore body. Mineral deposits differ in …

Jan 31, 2013· Mining Methods Ppt Presentation … surface or 'opencast' mining and 'underground' mining. The choice of method is largely determined by … Schematic diagram of … »More detailed. Coal Mining Equipment,Coal Mining Methods,Open-Cut ...

Carbon Footprint reduction in Mining and Blasting operation. Bringing Sustainability in Coal Mining Operations. Techniques of Controlled Blasting. Underground Coal Gasification (UCG) Coal Bed Methane (CBM) Safety in Handling of Explosives and Blasting. Signature Hole Blast Vibration Control. Blasting Techniques in Underground Metal Mines.

Sep 19, 2011· Cost Reduction in Mining Operations - Discussion The operating cost structures of mining operations globally have increased significantly over past years. When raw material prices are high it might appear to be an odd time to be thinking about cost reduction, but in fact it is the ideal time. History has shown us is that…

open cast mining methods.ppt - ironbeneficiation.com Types of mining methods. Surface: open pit, open cast, etc. Underground: room and pillar, block caving, etc. c. Monitor costs and economic payback ...

The first way in which proposed mining projects differ is the proposed method of moving or excavating the overburden. What follows are brief descriptions of the most common methods. 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,

Nov 10, 2017· Subject :GEOLOGYCourse :ENERGY RESOURCES AND MINERAL EXPLORATIONSKeyword : SWAYAMPRABHA

Mar 21, 2016· MINING METHODS. The method of extracting the ore is dependent upon the nature of the ore occurrence. Each orebody is a problem in itself. All influencing factors, as size, shape, position, nature and grade of an orebody, and character of the enclosing walls, are fully considered before the method of extraction is decided.