Influence Of Striping Ratio On Open Cast Coal Mining

Stripping ratio Wikipedia

In mining, stripping ratio or strip ratio refers to the ratio of the volume of overburden (or waste material) required to be handled in order to extract some tonnage of ore. For example, a 3:1 stripping ratio means that mining one tonne of ore will require mining three tonnes of waste rock.

What Is a Stripping Ratio? (with picture)

26-10-2019· Stripping ratio is a term that is derived from the mining industry and is used in reference to the open-pit mining process. The stripping ratio method of calculating the profitability of the mining procedure is commonly used in the ore or coal mining process.

Open Cast Mining Terminology YouTube

22-3-2018· open-cast mining is a surface mining technique of extracting minerals from the earth by their removal from an open pit.

Auteur: Pacific Polytechnic College Udaipur

Opencast Mining an overview ScienceDirect Topics

The open pit exposes 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 depth where the economic ratio of ore and waste can be sustained. There are many advantages to the open pit mining method, namely: 1.

Basics of open pit mining YouTube

10-7-2016· Informative presentation you came across to know about Open Pit mining. Open Pit mining MINING Methods Hydraulic Gassification Opencast mining Open cut Mining Surface or Strip Mining final pit, weather Land degradation by mining Deforestation Pollution water Air Land Noise workings Workings Deeper Depths cities and under sea/rivers The quarried

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What is stripping ratio in mining? Quora

Stripping ratio mining Britannica

1-1-2020· Other articles where Stripping ratio is discussed: coal mining: Choosing a mining method: calculated with the aid of stripping ratios, which represent the amount of waste material that must be removed to extract a given amount of coal. Stripping ratios can also consider the selling price of coal, and a certain minimum profit can

OPEN CAST MINE PLANNING Mining and Blasting

Sr. Mining Engineer OPEN CAST MINE PLANNING Factors that influence planning: 1) Demand of coal. a. Countrywide demand b. Regional demand 2) Distribution of coal deposits 3) Quality of coal 4) Pricing policy for coal 5) Available infrastructures: rail, road, power, etc. 6) Nature of deposits (influences site, area method of work, & equipments of

Surface Coal Mining Methods in Australia

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 operating at higher stripping ratios

Stripping Ratios: What are They and Why are They

20-1-2016· Stripping ratios aren’t often discussed, but they can be an early and important indicator for mining projects. Here’s what investors should know about them. A strip ratio, or stripping ratio, is an important measurement related to the open-pit mining process. It represents the amount of waste

Stripping ratio mining Britannica

OPEN CAST MINE PLANNING Mining and Blasting

Coal mining Choosing a mining method

1-1-2020· 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

Coal mining Wikipedia

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 the coal deposit than underground methods, as more of the coal seams in the strata may be exploited

INTRODUCTION TO MINING Ciência Viva

INTRODUCTION TO MINING 1.1 MINING’S CONTRIBUTION TO CIVILIZATION that can be utilized as fuels,such as coal,petroleum,natural gas,coalbed If the excavation used for mining is entirely open or operated from the surface,it is termed asurfacemine.

14.3 Open Cast (Strip) Mining 1of 2

Area mining is often referred to as open cast or strip (furrow) mining. It is frequently practiced on a large scale, which results in low unit cost, high productivity, high recovery, and greater safety compared to underground min-ing. Contour (or collar) mining progresses in a narrow zone following the outcrop of a coal seam in mountainous terrain.

THE IMPORTANCE OF DILUTION FACTOR FOR OPEN PIT MINING

THE IMPORTANCE OF DILUTION FACTOR FOR OPEN PIT MINING PROJECTS* Anoush Ebrahimi, P. Eng., Ph.D. investigate the influence of dilution it is its quantification that poses the most serious challenge (Pakalnis et al., ratio of the tonnage of waste mined and sent to the mill to the total tonnage of ore and waste combined that

Surface Coal Mining Methods in Australia

Rock fragmentation control in opencast blasting

Presently, seams R-V and R-VI are being extracted by opencast method of mining. The mine is producing about 4.5 Mt of coal and removal of overburden is about 12 Mm 3. The stripping ratio of the mine is 1:4.72, i.e. 4.72 m 3 of overburden is to be removed for mining of 1 t of coal.

(PDF) Stripping Ratios, Pit Limits & Cutoff Grade

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‘We’ve suffered enough’: Durham locals fight new

23-7-2018· Protesters observe mining activity on the Bradley site. Photograph: Mark Pinder/The Guardian “The countryside is the only amenity left in ex-mining areas, and open-cast mining threatens to take that amenity away without offering meaningful jobs,” said Anne Harris of Coal Action Network.

(PDF) Stripping Ratios, Pit Limits & Cutoff Grade

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Basics of openpit mining SlideShare

What is Opencast Mining• Opencast mining is also known as Open pit mining, Open cut Mining, Surface or Strip Mining.• The coal upto economical depth will be excavated by OC Method.• The current operating depth of OC mines in SCCL is about 200m and SCCL proposed to operate OC mines upto a depth of 420m. Ex: MNG OC II Extension Project.•

Lecture 4 Calculating Stripping Ratios for Area

Calculating Stripping Ratios for Area Strip Mines. Mnge 315 Dr. B. C. Paul spring 2003 revised 2010 Note These notes contain information considered common knowledge to those familiar with Strip Mining. Books such as Elements of Practical Coal Mining and SMEs Surface Mining were specifically referenced Stripping Ratio as a Fundamental

1.1 PHASES OF A MINING PROJECT elaw

mining involving extraction of coal or aggregates, such as sand, gravel, 1.1.3.1 Open-pit mining Open-pit mining is a type of strip mining in which of overburden generated by mining is enormous. The ratio of the quantity of overburden to the

Surface mining SlideShare

SURFACE MINING • Surface mining is done by removing (stripping) surface vegetation, dirt, and, if necessary, layers of bedrock in order to reach buried ore deposits (or) surface mining is the process of extraction of minerals by removal of overburden . • Overburden is the rock or waste material which is lying on the mineral to be owned .

Environment Impact Assessment of Coal Mining

Sub-bituminous coal, Bituminous coal and Anthracite. Open cast mining and underground mining (room pillar, long wall, drift, shaft, slope mining) are some types of coal mining. Proper Environment impact assessment of coal mining is very important and here we take some issues which should be considered and some

ECONOMIC ASSESSMENT AND MINE PRODUCTION

The stripping ratio is the relationship between the waste and ore volume. Different sensitivity analysis will also be performed in order to appreciate what happens to the project economics when certain variables of high importance, such as the processing capacity, gold price and dilution rate vary. Open-pit mining operations are long-term

Mining Terms kau

Open Cast Mining . Open Pit Mining . Strip Mining . Quarry Mining . Placer Mining . Stripping Ratio: is the ratio of a unit of waste material removed per similar unit of ore material removed. Entry: A horizontal opening in a bedded mineral deposit (ex. coal). Face:

Cost Models of Theoretical Mining Operations

This mine is an open pit mine producing 5,000 tonnes ore and 5,000 tonnes waste per day. Rock characteristics for both ore and waste are typical of those of granite or porphyritic material. Operating conditions, wage scales, and unit prices are typical for western U.S. mining operations. All costs listed are in 2012 US$.