Application of an integrated decision-making approach ...

2021-8-17 · Keywords : Coal mine, Mechanization potential, FDAHP, PROMETHEE method, Optimal selection 1. Introduction Efforts in coal mines have predominantly been motivated for a number of goals, including reducing the material costs, decreasing the number of stopes, lowering the level of labor inputs, and maximizing the production rate.

Methods of Working Coal and Metal Mines

2021-8-10 · Methods of Working Coal and Metal Mines, Volume 3 discusses the extraction of mineral deposits, which involves the driving of development openings, from the surface or a central shaft, to the "block out" portions of the deposit. This book is divided into three parts. Part A describes the coal mining methods, which include pillar mining ...

Table 3 from A new approach to mining method selection ...

The main purpose of this paper is to represent a solution to the problem of mining method selection (MMS) in mining projects. To this aim, the well-known MMS technique of Nicholas has been modified so that in addition to eliminate its defects, it would be possible for mining engineers to easily assign their engineering judgments to unsteady and uncertain characteristics of mineral resources.

A new model for mining method selection based on grey …

One of the most important steps involved in mining operations is to select an appropriate extraction method for mine resources. After choosing the extraction method, it is usually impossible to replace it with another one because it may be so expensive that implementation of the entire project could be economically impossible. Choosing a mining method depends on the geological and geometrical ...

(PDF) Selection of Thick Coal Seam Mining Method Using ...

SELECTION OF THICK COAL SEAM MINING METHOD USING. ANALYTIC HIERARCHY PROCESS. Mustafa Emre Yetkin 1 and Muharrem Kemal Özfırat2. 1, 2 Dokuz Eylul University Mining Engineering Department, Buca ...

Equipment Selection for Surface Mining: A Review

2013-7-19 · A surface mine contains pits with mineral endowed rock (or ore). We extract ore that lies within the upper layer of the earth, from surface mines (Fricke, 2006) . This ore can include metals such as iron, copper, coal and gold. There are several methods of surface mining, including open-pit, stripping, dredging and mountain-top removal.

Coal Selection

In China, the average depth for coal mining is 420 m and this extends downward by a further 20 m per year. There are already 117 coal mines with mining depths of more than 600 m, and a high proportion of mines with complex geological and hydrological structures in addition to high levels of gas. China''s coal-dominated energy structure ...

Types of Underground Mining Method Comparison

2017-3-16 · 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 …

Optimal Selection of a Longwall Mining Method for a Thin ...

2016-7-14 · The selection of a mining method is one of the most important decisions made by mining engineers. An appropriate fully mechanized mining method is of great importance to mining design and capacity planning for thin coal seams. Therefore, the comprehensive evaluation of alternative mining methods is an important part of mining design. Several parameters should be considered in that …

Shaft: Site Selection, Shape, Depth & Pillar | Deep Mining ...

2021-8-24 · Site Selection of an Incline or Pit: ... In a coal mine developed on bord and pillar method two pillars of coal are left unextracted on either side of the incline for its support and essential buildings and installations can be located to the rise side of the incline mouth. In a metalliferios mine also a solid block of rock is left in-situ on ...

THE DEVELOPMENT OF A NOVEL MODEL FOR MINING …

Mining method selection (MMS) for mineral resources is one of the most signi ¤ cant steps in mining production man-agement. Due to the high costs involved and environmental problems, it is usually not possible to change the coal mining method after planning and starting the operation. In most cases, MMS can be considered as an irreversible ...

Coal mining

2021-8-27 · 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 …

Geotechnical Risk Assessment and Selection of Suitable ...

2020-10-13 · 2016 Coal Operators'' Conference The University of Wollongong 116 10 – 12 February 2016 GEOTECHNICAL RISK ASSESSMENT AND SELECTION OF SUITABLE ROADHEADERS FOR TABAS COAL MINE PROJECT, IRAN Reza Mohammadzadeh1 and Arash Ebrahimabadi2 ABSTRACT: Geotechnical risks play an important role in the selection of tunneling method and machine types. In …

Site selection and financial analysis of deep surface ...

@article{osti_5450966, title = {Site selection and financial analysis of deep surface mining of anthracite coal. Volume II. Wabash Valley Site}, author = {Manula, C. B. and Camilli, F. A. and Kiusalaas, J.}, abstractNote = {The design of a large-scale open pit mine located in the Southern Anthracite Field was evaluated to determine the economic feasibility of this energy resource.

Compromise solutions in mining method selection

Compromise solutions in mining method selection - case study in colombian coal mining By Jorge Iván Romero-Gélvez, Félix Antonio Cortes-Aldana and Giovanni Franco-Sepúlveda Cite

Application of Thick Coal Seam Mining Method Prediction ...

Because of thick coal seam mining method selection is not only affected by coal seam geological conditions, but also limited by workers, and not fully utilization of experts` experience, the effect of tradition coal mining method selection methods are not ideal. The thick coal seam mining method prediction model based on artificial neural network (TCSMMPM-ANN) was established through the ...

UNDERGROUND MINE VENTILATION SURVEY

2016-3-16 · 4.2 Air distribution in different coal mining methods 8 4.2.1 Bord and pillar method 8 4.2.2 Longwall method 8 4.3 Types of ventilation systems 9 4.4 Other ventilation system 10 4.5 Equivalent orifice 12 ... 5.6 Selection of measurement stations for pressure quantity survey 29

Selection of an Appropriate Mechanized Mining Technical ...

Mechanized mining technical process (MMTP) related to the control method of the shearer is a vital process in thin coal seam mining operations. An appropriate MMTP is closely related to safety, productivity, labour intensity, and efficiency. Hence, the evaluation of alternative MMTP is an important part of the mining design. Several parameters should be considered in MMTP evaluation, so the ...

Research Article Selection of an Appropriate Mechanized ...

2019-7-31 · mining, conventional mechanized mining, and blast mining were conducted []. Using the comprehensive fuzzy evalua-tion method, Zhang et al. established a model for geological evaluation of coal mine and constructed an economic-mathematical model for mining method selection for thick coal seams []. Based on fuzzy statistical analysis and grey ...

CHAPTER 11 Mining Technology

2007-3-19 · A potential method for recovering energy from coal is through in situ gasification of deep coal seams that cannot be mined by sur-face mining methods. The thick coal seams in the Powder River basin are considered at-tractive in their potential for in situ gasifica-tion, and two separate small-scale test sites have been developed in Campbell County,

The Coal Mining Methods Selection of Large Mine Based on ...

In order to select the reasonable coal mining method of large mine, analysing the main factors of affecting the mining method and establishing the evaluation index system of coal mining methods selection to large mine, then using Analytic Hierarchy Process (AHP) to calculate the weight of each index. The grey correlation evaluation model of mining method was established for large mine by using ...

Methods of Working Coal and Metal Mines | ScienceDirect

Methods of Working Coal and Metal Mines, Volume 3 discusses the extraction of mineral deposits, which involves the driving of development openings, from the surface or a central shaft, to the "block out" portions of the deposit. This book is divided into three parts. Part A describes the coal mining methods, which include pillar mining ...

A fuzzy method for selecting underground coal mining ...

2012-11-30 · One of the crucial decisions affecting productivity of the mine is the mining method selection. Longwall mining is quite common in underground coal mining, and it allows the use of mechanization. As application of mechanization increases, production also increases and the number of workers decreases. Thus, the organization of work is easier, and the number of accidents decreases in the mine ...

Evaluation of ground conditions for optimal selection of ...

2021-4-2 · OPTIMAL SELECTION OF COAL MINING METHODS FOR MUI COAL DEPOSITS, KITUI COUNTY, KENYA BY NORBERT KINYUA MAMBO I56/63949/2010 A research project dissertation submitted for examination in partial fulfilment of the requirements for award of the degree of Master of Science in Geology

Compromise solutions in mining method selection

2016-10-27 · Compromise solutions in mining method selection - case study in colombian coal mining Jorge Iván Romero-Gélvez a, Félix Antonio Cortes-Aldana b & Giovanni Franco-Sepúlveda c a Escuela de Ciencias Exactas e Ingeniería, Universidad Serg io Arboleda, Bogotá, Colombia. [email protected]

Major Mines & Projects | Ulan mine Mine

The CHPP, located at the USO, washed 49.8% of Ulan West ROM and 34.9% of Ulan Underground ROM. Removing the bottom 3 metres of the Ulan Seam reduces the need to wash the coal; approximately 30% of run of mine coal from the underground requires washing.All underground coal is conveyed to the surface stockpiles by the coal clearance conveyor system.

Underground Mining Method Selection Using WPM and ...

2017-5-17 · The aim of this paper is to represent the solution to the problem of selecting suitable underground mining method for the mining industry. It is achieved by using two multi-attribute decision making techniques. These two techniques are weighted product method (WPM) and preference ranking organization method …

(PDF) 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 …

Factors influencing mining method selection ...

2019-6-28 · From: Queen''s Mine Design Wiki Note: Oil and gas deposits are not discussed here. Underground mining methods are the focus of this article. The selection of a mining method for an ore deposit is based on many factors that are driven by the economics and profitability of the mine …

The Coal Mining Methods Selection of Large Mine Based on ...

Coal mining - Choosing a mining method | Britannica

Method and selection of coal mine breakthrough survey

2021-7-5 · Method and selection of coal mine breakthrough survey Zhang Lu Shanxi Coking Coal Huozhou Coal and Electricity Group Tuanbai Mine, Huozhou 031400, China Abstract Figure/Table References (0) Related Citation (3) | : ...

GUIDELINES FOR THE INTEGRATED PLANNING AND …

2021-1-22 · for underground coal mining operations – from inception to closure 1. PHASE 1: INVESTIGATIVE STUDIES 1.1 Market analysis The mine planning and design process for any new coal mining operation commences with the identification and analysis of specific market needs and requirements. These needs and

Evaluation of ground conditions for optimal selection of ...

It is vital to establish scientific methods towards optimally mining coal to increase efficiency in knowledge and profitability. This project aimed to determine the ground conditions for coalmines development at Block C. Block C (an exploration area that covers about 131Km2) is the contemporary coal frontier in Kenya that spans from Kateiko (North) to Yoonye (South) in Kitui County, Kenya.