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A Comparative Study of Various Multi

Oct 17 2018Underground mining method selection is a multi-criteria decision-making problem and the mine planners face the challenges in the selection of the appropriate mining method The selection of mining method depends on multiple intrinsic factors (dip shape thickness depth grade distribution RMR of ore RMR of hanging wall and RMR of footwall Get price

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Optimisation of Ore Selection in Mining: Method and Case

The previous methods of ore selection at most of these operations were based mainly on polygonal – sectional methods of grade estimation At all of the sites where grade control optimisation has been given a fair trial over several months of production the use of the MP method has been consistently rewarding to the mining operations Get price

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What are the main methods of mining?

There are four main mining methods: underground open surface (pit) placer and in-situ mining Underground mines are more expensive and are often used to reach deeper deposits Surface mines are typically used for more shallow and less valuable deposits Placer mining is Get price

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Mining method selection by multiple criteria decision

Selection of an appropriate mining method is a complex task that requires consideration of many technical economic political social and historical factors The appropriate mining method is the method which is technically feasible for the ore geometry and ground conditions while also being a Get price

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Factors influencing choice of methods

Mar 14 2014factors influencing choice of 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 Get price

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Selection of Mining Method for Anomaly No 3 of Gol

Today the selection of a mining method is a multi-criteria decisionmaking process with many factors in this process connected to each other These trends do not have a high degree of confidence In this study the analytical hierarchy process was used to select the suitable mining method for anomaly No 3 of Gol-Gohar iron mine of Iran Get price

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Mining Methods

Dec 05 2008Mining Methods Incline entry into a seam LOAD HAUL DUMPER Capacity – 2/2 7 Cu M Production – 150/200 Tonnes/day For seams of 1 in 6 gradient and flatter Thickness of 2 0 m to 4 0 m SIDE DUMP LOADER Capacity – 1 0 Cu M Production – 120 Tonnes/day For seams of 1 in 5 gradient and flatter Thickness of 2 0 m to 3 5 m MECHANISED DRIVAGEGet price

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The selection of appropriate mining method for the Deh

goals of mining method selection are the optimisation of a company's profit and recovery of mineral resources as well as the provision of a safe environment for miners through opting for the suitable method among feasible alternatives with the least problemsGet price

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Practical applications from decision

Therefore from the viewpoint of system theory the mining method selection is an open dynamic and complex large system (Yaming Ying Weixuan 2004) In addition to the importance of the selection the procedure of decision making is rather confusing and difficult The difficulty of the mining method selection arises from some basic facts One ofGet price

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Exploitation Phase

Jul 17 2016Selection of an appropriate mining method is a complex task that requires consideration of many technical economic political social and historical factors The appropriate mining method is the method which is technically feasible for the ore geometry Get price

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1 1 PHASES OF A MINING PROJECT

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 necessitating the removal of layer upon layer of overburden and ore Get price

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Underground mining method selection by decision making

Underground mining method selection by decision making tools 5 3 1 Metodsel and modsel 5 3 2 Altersel 5 3 3 Getinfo 5 3 4 Loadmtrx 5 3 5 Savemtrx 5 3 6 Multmtrx 5 3 7 Compara 5 3 8 Perforsensitiv 5 3 9 Procfuzzy 5 3 10 Procahp 5 3 11 Finsol Get price

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A Brief Introduction to the Types of Surface Mining Methods

Mar 08 2018These 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 Get price

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Surface Mining Methods

Mining equipment selection The selection of mining equipment is a function of the mine plan Some of the factors considered in the selection of mine equipment include the topography of the pit and surrounding area the amount of ore to be mined the speed and distance the ore must be transported for processing and the estimated mine life among others Get price

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Mining Method Selection

Combining experience conventional approaches and numerical modeling tools Itasca can simulate mining of client's sites first to select mining methods appropriate to the orebody geometry rock mass strength conditions and stress state Get price

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Mining Method Selection

Selecting a mining method is one of the most critical and problematic activities of mining engineering The ultimate goal of the mining method is to maximise the profit and extraction of the mineral resources while providing a safe working environment The selection of the mining method is a Get price

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Surface Coal Mining Methods in Australia

Mining method description Example mines Multiple seam steep dip truck and loader strike cut haulback mine with truck and loader coal mining Mt Owen (NSW) Leigh Creek (South Australia) Duralie (NSW) Ravensworth East (NSW) Several seam moderate dip dragline down dip strip mine with throw blast dozer assist and truck and loader prestrip Get price

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Mining method selection by integrated AHP and

the mining method selection such as geological and geotechnical properties economic parameters and geographical factors The AHP is used to analyze the structure of the mining method selection problem and to determine weights of the criteria and PROMETHEE method Get price

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Quarrying of Stones: Its Methods Selection of Site

It differs from the mining of ores of metals in that whereas quarrying is an operation carried out entirely on the surface mining involves digging below the ground sometimes at considerable depth A quarry is a place where different types of stones are extracted Selection of Site for Quarrying of Stones Get price

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MINING METHOD SELECTION METODOLOGY BY

ISAHP Article: Mu Saaty/A Style Guide for Paper Proposals To Be Submitted to the International Symposium of the Analytic Hierarchy Process 2014 Washington D C U S A MINING METHOD SELECTION METODOLOGY BY MULTIPLE CRITERIA DECISION ANALYSIS - CASE STUDY IN COLOMBIAN COAL MINING Eng Jorge Ivan Romero Gelvez M I Escuela Colombiana de Carreras Get price

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An Introduction to Feature Selection

There are three general classes of feature selection algorithms: filter methods wrapper methods and embedded methods Filter Methods Filter feature selection methods apply a statistical measure to assign a scoring to each feature The features are ranked by the score and either selected to be kept or removed from the dataset Get price

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Methods for Equipments Selection in Surface Mining review

mining equipments selection This system is able to involve the expert knowledge in primary and secondary selection of equipment for surface coal mines [3] In 1990 another expert system in order to classify equipment was planned in the open pit coal mine of Britain with the help of fuzzy logic Get price

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Underground mining (hard rock)

Selective mining methods Cut and fill mining is a method of short-hole mining used in steeply dipping or irregular ore zones in particular where the hanging wall limits the use of long-hole methods The ore is mined in horizontal or slightly inclined slices and then filled with waste rock sand or tailingsGet price

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Design an Appropriate Mining Method for Extraction of

online method selection tool and the Mining Method Selection tool (MMST UNZA) The UBC mining method selection is a modification of the Nicolas approach (1981) which places more emphasis on stoping method According to Nicolas each mining method is ranked according to the suitability of its geometry/grade distribution and ore zone Get price

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A new model for mining method T selection of mineral

Mining method selection is a critical point and a strategic issue in the mining engineering process Selection of a method unsuitable for deposit characteristics may make exploitation of the orebody troublesome and sometimes uneconomical So available deposits should be evaluated carefully in an optimum manner Get price

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October 2017 / Mining Method Selection

Sep 27 2018The selection of the mining method is a complex task considering many technical economic human and historical factors Analysing all these factors will assist in identifying the appropriate mining method that is technically feasible for the geometry of Get price

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Mining Method Selection

Summary Selection of mining method based on orebody characteristics This interactive tool is based on the Nicholas method as modified by the Rock Mechanics Group Get price

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Equipment Selection for Surface Mining: A Review

Key words: Equipment Selection Surface Mining Shovel-Truck Productivity Mining Method Selection Multi-Commodity Network Flow Introduction The general Equipment Selection Problem (ESP) is to choose a collection of compatible but not necessarily homogeneous items of equipment to perform a speci ed task In many applications Get price

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Method Selection

In the past selection of a mining method for a new property was based primarily on operating experience at similar type deposits and on methods already in use in the district of the deposit Then the chosen method was modified during the early years of mining as ground conditions and ore character were bet- Get price

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Underground Mining Methods and Equipment

The selection of underground mining methods is primarily based on the geological/spatial setting of the deposit Candidate methods can therefore be chosen and ranked based on estimated operational/capital costs production rates availability of labors and materials/equipments and Get price

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Coal mining

Choosing a mining method The technological factors include at a minimum the number of seams the thickness and steepness of each seam the nature and thickness of the strata overlying the seams the quality of the coal seams the surface topography the surface features and Get price

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