underground mining methods ppt

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VENTILATION PLANNING LAYOUTS FOR LARGE OPENING …

States represent a major sector of mines in the noncoal mining industry. Numerous large room-and-pillar mines began as surface quarries, that due to increased stripping ratios or environmental considerations, have become underground mining operations. These stone mines are characterized by massive openings and large expanses that correlate to very

Lecture 4: Underground Mining - SlideShare

Nov 02, 2011· Underground mining, Underground mining methods. Lecture 4: Underground Mining 1. Hassan Z. Harraz [email protected] 2010- 2011 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 instructors.

PPT – Underground Mining PowerPoint presentation | free to ...

Underground mining for inclined strata and veins - Underground mining for inclined strata and veins Cut and fill method Boring the ore (making holes for explosives) Cut and Fill Long Wall Mining Method Sketch for long ... | PowerPoint PPT presentation | free to view

Underground Mining Methods Handbook

Underground Mining Methods Handbook >>>CLICK HERE<<< is a world-leading provider of sustainable productivity solutions. We serve customers in more than 180 countries with products and service focused. techniques in perception, task allocation, motion planning, developed, e.g., for mining (Atlas-Copco mining equipment:

Hard Rock Miner's Handbook - Stantec

Mining industry response to the book continues to be incredible. Thanks in large part to the efforts by John Chadwick of the Mining Journal,, and many other members of the mining community, the Hard Rock Miner's Handbook has been distributed to over 113 countries worldwide. Web hits and downloads continue as students and

Digging deeper: Mining methods explained | Anglo American

Underground mining is practical when: The ore body is too deep to mine profitably by open pit. The grades or quality of the orebody are high enough to cover costs. Underground mining has a lower ground footprint than open pit mining. The underground mining methods we use include room and pillar, narrow vein stoping and large-scale mechanised ...

Underground mining (hard rock) - Wikipedia

Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals, usually those containing metals such as ore containing gold, silver, iron, copper, zinc, nickel, tin and lead, but also involves using the same techniques for excavating ores of gems such as diamonds or rubies.

Types of Underground Mining and Their Applications - YouTube

Jul 24, 2016· Types of Underground Mining and Their Applications.

Geotechnical considerations in underground mines

Geotechnical Considerations in Underground Mining/Department of Industry and Resources Guideline Document No.: ZME723QT 1.0 INTRODUCTION The potentially hazardous nature of underground mining requires the application of sound geotechnical engineering practice to determine the ground conditions, the ground support and reinforcement requirements, as well as the size, shape …

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OPTIMIZATION OF PRODUCTION PLANNING IN …

Mining is the process of excavating a material which is naturally occurring from the earth to get profit. Underground method is used when ore body is thin or narrow and extends much below surface (Newman et al., 2010). In underground mining, development required to reach

Blasting - Safety Training PowerPoint Presentations

Blasting Regulations Explores the requirements on blasting operators contained in 29 CFR, BATF and DOT. 16 slides: Blasting Regulations Regulatory requirements for NCDOT blasting operations. 19 slides: Blasting Safely with Proper Techniques The most important responsibility of the blaster in charge is to prepare and fire safely.

Surface Mining Methods and Equipment

1.2. Open Pit vs. Underground Mining Methods While most mineral deposits can be mined by either surface or underground methods, some minerals can only be recovered in a hybrid manner, usually by initial extracted by open pit mining, followed by underground methods. Here, a brief comparison is …

Coal mining - Choosing a mining method | Britannica

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 …

CHAPTER 11 Mining Technology - Princeton University

CHAPTER 11 Mining Technology The Federal Coal Leasing Amendments Act of 1976 charged OTA to assess the feasibility of the use of deep-mining technology on leased areas. With the passage of the Sur-face Mining Control and Reclamation Act of 1977 congressional interest in the study of deep underground mining technology shifted

Underground mining method selection by decision making ...

Underground mining method selection is one of the most important decisions that mining engineers have to make. Choosing a suitable underground mining method to extract a mineral deposit is very important in terms of economics, safety and productivity of mining operations.

Underground Mining Systems (MINE 205)

Underground Mining Systems (MINE 205) A Required Course for B.S. Degree in Mining Engineering Course description: Underground mining methods and equipment for bedded deposits and ore bodies; de-scription and selection of mining methods, equipment requirements and selection, equip-

(PDF) Underground mining Methods - ResearchGate

The essential geomechanical features of longwall and caving methods of mining were outlined in Chapter 12. Longwall and caving methods are distinguished from other mining methods by …

Mining - Underground mining | Britannica

Mining - Mining - Underground mining: When any ore body lies a considerable distance below the surface, the amount of waste that has to be removed in order to uncover the ore through surface mining becomes prohibitive, and underground techniques must be considered. Counting against underground mining are the costs, which, for each ton of material mined, are much higher underground than on …

Chapter 1 LONG- AND SHORT-TERM PRODUCTION …

surface methods, but about 1960, the pit deepened to such an extent that it became more cost-effective to mine underground. The underground mining method Kiruna currently employs is knownas large-scale sublevel caving. This method is used for extracting ore from vertically positioned, fairly pure, large, vein-like deposits.

Underground Mining Methods and Technology, Volume 1 - 1st ...

Purchase Underground Mining Methods and Technology, Volume 1 - 1st Edition. Print Book & E-Book. ISBN 9780444428455, 9780444597137

Underground Mining Methods

The choice of an underground mining method depends on a range of factors and these include; the size and shape of the deposit, the orientation or slope of the deposit, the depth of the deposit, geological structures, characteristics of the ore and the surrounding rocks and issues with gas and water. In combination, these factors allow us to determine an appropriate arrangement and sequence for ...

Hardrock Mining Techniques|Underground Mines|Minings Method

Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals such as those containing metals like gold, copper, zinc, nickel and lead or gems such as diamonds. In contrast soft rock mining refers to excavation of softer minerals such as coal, or oil sands.

Coal Mining Methods - Colorado School of Mines

Coal Mining Methods Underground Mining Longwall & Room and Pillar Mining Longwall mining and room-and-pillar mining are the two basic methods of mining coal underground, with room-and-pillar being the traditional method in the United States. Both methods are well suited to extracting the relatively flat coalbeds (or coal seams) typical of

UNDERGROUND MINING - Scribd

UNDERGROUND MINING - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. UNDERGROUND MINING

Underground mining methods - SlideShare

Apr 14, 2014· Underground mining: Mineral exploitation in which all the extraction is carried out beneath the surface of earth. Underground mining methods: These are the methods/techniques employed when the depth of the deposit,the stripping ratio of the overburden to ore,or both becomes excessive to surface exploitation.

Types of Underground Mining Method Comparison

In any discussion of Methods of Underground Mining Comparison, one is repeatedly confronted with the difficulty of dealing with so many variable conditions. It is not an exact science and in the choice of a method each varying factor has a certain weight, which, in many cases, experience alone can determine.

(PPT) UNDERGROUND MINING | Iqbal DACHI - Academia.edu

UNDERGROUN D MINING Glossary Entrance Way to Underground Mine Glossary hole opening Glossary Underground Mining Drawing Glossary underground mining infrastructure Mineral/Coal Exploration Technical Factors underground excavation stability Mining Activity Development Shaft Sinking Shaft Sinking (lanjutan) Drilling and Blasting Drilling and ...

PPT – Coal Mining PowerPoint presentation | free to ...

underground. Blast mining-is the controlled use of explosives to excavate or remove rock ; Retreat mining-is a term used to reference the final phase of an underground mining technique known as room and pillar mining. This involves excavating a room or chamber while leaving behind pillars of material for support. 8 Other Methods of Coal Mining