Chapitre 74 Les mines et les carrières

La plupart des mines ciel ouvert modernes sont exploites au moyen d installations de foration mobiles de pelles hydrauliques de chargeuses de pelles benne traînante draglines et de camions L tendue de la mine dicte la quantit et la capacit du matriel requis pour raliser le plan d exploitation

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Impacts of mining PPT SlideShare

3 Mining is the extraction of valuable minerals or other geological materials from the earth from an ore body lode vein seam or reef which forms the mineralized package of economic interest to the miner Minerals are the natural resources which play an important role in the economic development of the country But the extraction and mining of these natural

Data mining technique decision tree PPT SlideShare

4 Classification Classification is a most familiar and most popular data mining technique Classification applications includes image and pattern recognition loan approval detecting faults in industrial applications All approaches to performing classification assumes some knowledge of the data Training set is used to develop specific parameters required by

Classification and prediction in data mining PPT SlideShare

Data mining tools can be very useful to discover patterns in complex manufacturing process Data mining can be used in system level designing to extract the relationships between product architecture product portfolio and customer needs data It can also be used to predict the product development span time cost and dependencies among

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Coal mining methods PPT SlideShare

3 Coal Mining is the term that encompasses the physical extraction or removal of coal from the Earth s Surface When coal is used as fuel in power generation it is referred to as Steaming or Thermal coal while those which are used to create coke for steel manufacturing is referred to as Coking or Metallurgical Coal Coal can be mined by both Surface and

Underground mining methods PPT SlideShare

12 1 Room and pillar mining method • Room and pillar mining is very old method applied to horizontal or nearly horizontal deposits that has been adopted and refined over the years The method is used in both coal and non coal mining • In room and pillar mining openings are driven orthogonally and at regular intervals in a mineral deposit forming

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District 10 Madisonville KY District 11 Birmingham A free PowerPoint PPT presentation displayed as an HTML5 slide show on id 20a518 ZDc1Z COAL MINE SAFETY AND HEALTH 1 COAL MINE SAFETY AND HEALTH District 7 Barbourville KY District 9 Denver CO District 11 Birmingham AL District 2 Hunker PA District 8

Association Analysis in Data Mining PPT SlideShare

Compiled by Kamal Acharya Frequent pattern mining • Frequent pattern mining searches for recurring relationships in a given data set • Frequent pattern mining for the discovery of interesting associations between item sets • Such associations can be applicable in many business decision making processes such as Catalog design

Genetic algorithms in Data Mining PPT SlideShare

The document discusses genetic algorithms and their application in data mining It provides examples of how genetic algorithms use selection crossover and mutation operators to evolve rules for predicting voter behavior from historical election data The advantages are that genetic algorithms can solve complex problems where traditional

Data Mining Healthcare Application PPT SlideShare

In 2018 Graham et al proposed a method to predict admission in hospital from the emergency department ED for improving patient flow and stop overcrowding using data mining [14] Effective Treatment Diagnosis & Prognosis Majali et al proposed a system in 2016 using Classification and Association approach in data mining for diagnosis and

Konsep Data Mining PPT SlideShare

15 • Melakukan ekstraksi untuk mendapatkan informasi penting yang sifatnya implisit dan sebelumnya tidak diketahui dari suatu data Witten et al 2011 • Kegiatan yang meliputi pengumpulan pemakaian data historis untuk menemukan keteraturan pola dan hubungan dalam set data berukuran besar Santosa 2007 • Extraction of interesting non

Basics of Bitcoin & Mining PPT SlideShare

Chaque site d exploitation est unique et se trouve dans une configuration et un environnement qui lui sont propres il serait donc illusoire voire dangereux de transposer de manière directe et

Major issues in data mining PPT SlideShare

The document discusses major issues in data mining including mining methodology user interaction performance and data types Specifically it outlines challenges of mining different types of knowledge interactive mining at multiple levels of abstraction incorporating background knowledge visualization of results handling noisy data evaluating

Mining and environmental impact PPT SlideShare

Mining involves extracting ore from the earth through surface underground or solution mining methods Ore is then processed through beneficiation techniques like crushing grinding separation based on magnetic or physical properties to extract the desired mineral The concentrated ore is then smelted to separate the metal from waste rock

Chapter 7 Advanced Frequent Pattern SlideShare

Advanced Frequent Pattern Download as a PDF or view online for free Chapter 7 Advanced Frequent Pattern Download as a PDF or view online for free δ cover All patterns in the cluster can be represented by P Xin et al Mining Compressed Frequent Pattern Sets VLDB 05 ID Item Sets Support P1 {38 16 18 12

L exploitation des ressources minrales par chambres et

Exemple de formules d ajustement Holland et Gaddy 1956 σ = 2 Bieniawski 1967 σ = 2 4 6 4 55 Expriences in situ sur des piliers de charbon Coupe du pilier et chargement par systèmes de vrins hydrauliques placs entre le toit et le mur a Bieniawski b Cook et al et Wagner c Van Heerden Rsultats des essais cas de

Text mining PPT SlideShare

6 AREAS OF TEXT MINING IR Information Retrieval NLP Natural Language Processing IE Information Extraction Data Mining Query based search on large text documents The development of the NLP application generally expect humans to "Speak" to them in a programming language that is accurate clear and exceptionally structured Human speech is

Underground mining methods PPT SlideShare

12 1 Room and pillar mining method • Room and pillar mining is very old method applied to horizontal or nearly horizontal deposits that has been adopted and refined over the years The method is used in both coal and non coal mining • In room and pillar mining openings are driven orthogonally and at regular intervals in a mineral deposit forming

Techniques d exploitation et restauration des

The document outlines the 5 main stages of mining prospecting exploration development exploitation and reclamation Prospecting involves initial literature reviews and mapping to identify potential mining sites Exploration uses sampling and drilling techniques to further evaluate sites Development acquires mining rights and constructs

coal mining PPT SlideShare

16 Mining operations 1 clearing the land of trees and vegetation 2 removing and storing the top layers of the unconsolidated soil topsoil 3 drilling the hard strata over the coal seam 4 fragmenting or blasting the hard strata with explosives 5 removing the blasted material exposing the coal seam and cleaning the top of the coal seam 6 fragmenting the

Sustanable mining PPT SlideShare

5 • Sustainable Mining There is no one definition of sustainability that has been universally adopted by the mining industry Some useful descriptions include the following • miners can achieve sustainable development by embracing the social environment and economic pillars James 1999 • offsetting or reinvesting the benefits from the depleting mineral asset