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Overview on the application of geophysics in coal mining

30 07 2013  Overview 1 Introduction The origins of the modern day use of geophysics in coal mining date back to the 1970s and lie mainly in the United Kingdom and West Germany At that time the coal mines of these countries were mainly underground They were getting deeper and the coal was becoming more difficult to win

Experimental Study on the Mechanical Properties of Coal

Therefore the coal seams of Xiaojihan Mine Coal posses the aquifer condition The obtained mechanical properties provided a reliable theoretical basis for forecasting mining face and mine water inflow for establishing the early pre warning system of mine water disaster for designing and optimizing the technology of driving and coal mining related with water disaster prevention

Journal of Mining Science

01 05 2021  Journal of Mining Science is a peer reviewed journal We use a double blind peer review format Our team of reviewers includes over 140 experts both internal and external 60 from 13 countries The average period from submission to first decision in 2019 was 45 days and that from first decision to acceptance was 90 days The rejection rate

OpenFOAM solver of the methane behaviour near the coal

Equation is the coupling equation of methane seepage and adsorption in coal seams 2 5 OpenFOAM solver To accurately simulate the methane emission and methane behaviour at the tunnelling face the stress equations permeability equations porosity equations methane seepage and adsorption equations should be coupled and figure 2 shows how this is done

Coal Mine Dust Lung Disease

08 01 2013  Coal mining remains a sizable industry with millions of working and retired coal miners worldwide This article provides an update on recent advances in the understanding of respiratory health issues in coal miners and focuses on the spectrum of disease caused by inhalation of coal mine dust termed coal mine dust lung disease

Japan s World Heritage Miike Coal Mine Where prisoners

01 07 2021  Japan s first labor union the general membership Yuaikai had a coal mining membership base and in 1912 Mitsui coal miners went on strike for five months Japan s largest prior to World War I but were defeated by the company 19 Trade union organization among coal miners revived under a different industrial union formation during the 1920s but could not be sustained under the impact of

journal journal of coal mining

Journal Journal Of Coal Mining lapecheauxmoules 83 International Journal of Coal Geology c School of Mines Key Laboratory of Deep Coal Resource Mining Ministry of Education China University of Mining and Technology Xuzhou Jiangsu 221116 China article info abstract Article history Received 22 August 2016 Received in revised form 24 January 2017 Accepted 24 January 2017 Available

Adaptability evaluation of fully mechanized coal mining

2 Project overview 4111 working face of Yuanzhuang coal mine is the first mining face in the western mining area of Huaibei Mining Group The working surface uses a single long wall mining method fully caving method control the roof the surface length is 131 m strike length is 623 m mining area is 81613 m 2 mining reserves is 164600 t The surface located nioumian syncline the west wing

OPEN PIT OPTIMIZATION AND PRODUCTION SCHEDULING OF

29 04 2019  The Okobo coal in Enjema District of Ankpa Local Government Area of Kogi State Nigeria is a near surface deposit that is mined through the open pit method In this investigation models and plans of the Okobo coal mine produced using Minex Gemcom Software were aligned with depth strip ratio and optimum pit limits with the aim of defining the most profitable extraction sequence of the

Safety Measurements and Risk Assessment of Coal Mining

Safety is a legal requirement of mining industry Effective safety measurements and risk management can serve the mine administration to lessen the dangers recognized in the mine Autonomous technologies such as Artificial Intelligence AI and Machine Learning ML models have been integrated with the mining industry to ensure a safe working environment since a decade ago in the form of

Accounting for Nonmarket Impacts in a Benefit Cost

19 01 2015  Accounting for Nonmarket Impacts in a Benefit Cost Analysis of Underground Coal Mining in New South Wales AustraliaVolume 3 Issue 2 Skip to main content Accessibility help We use cookies to distinguish you from other users and to provide you with a better experience on our websites

Journal of Mining and Environment

Journal of Mining and Environment is an international peer review journal in the field of mining and relevant environmental issues and aims to publish original papers review articles technical reports and short communications that are expected to be interesting for mining engineers scientists geologists and environmental groups that are not published or not being considered for publication

Health risks of exposure to air pollutants among students

27 03 2018  Emalahleni is a coal mining town that also supplies the coal to neighbouring power stations for electricity generation In addition there are a number of smelting companies around the mines which use the coal in the foundries International Journal of Coal Geology 72

Health and Safety Assessment in Lakhra Coal Mines and Its

Gurjar A Pradaban VA Patel P Assessment of Roof Fall Risk during Retreat Mining in Room and Pillar Coal Mines International Journal of Engineering Research Technology 2013 2 9 2794 02 Ghani MA Harbour RL Landis RE Kibbles W Geology and Coal Resources of the Lakhra Coal Field Hyderabad Area Pakistan Open File Report 2012 Series Number 75 553

Health and Safety Assessment in Lakhra Coal Mines and Its

Gurjar A Pradaban VA Patel P Assessment of Roof Fall Risk during Retreat Mining in Room and Pillar Coal Mines International Journal of Engineering Research Technology 2013 2 9 2794 02 Ghani MA Harbour RL Landis RE Kibbles W Geology and Coal Resources of the Lakhra Coal Field Hyderabad Area Pakistan Open File Report 2012 Series Number 75 553

Characterization of the coal resources of South Africa

The Journal of The South African Institute of Mining and Metallurgy FEBRUARY 2005 95 Introduction Coal currently provides 73 of South Africa s primary energy 95 of the country s electricity is coal fired thermal generation while s coal conversion technology

Atmospheric particulate matter size distribution and

19 02 2014  Coal mines and related mining activities result in the production of atmospheric particulate matter PM that is associated with human health effects Arabian Journal of Geosciences 2018

Journal

Journal The papers published in the SAIMM Journal are refereed and edited according to internationally accepted standards and are accredited for rating purpose by the South African Department of Higher Education and Training Printed Journal ISSN 2225 6253 Key title Journal of the Southern African Institute of Mining and Metallurgy

Assessment of the Implications of Coal Post mining Impact

This study examines the coal post mining impact on surface water at abandoned Okpara mine in Enugu State Experimental research design was adopted to test the water quality The water samples were collected and analysed to determine the level of pollution

A systematic review and meta analysis

03 08 2021  Background Coal mine dust lung disease comprises a group of occupational lung diseases including coal workers pneumoconiosis In many countries there is a lack of robust prevalence estimates for these diseases Our objective was to perform a systematic review and meta analysis of published contemporary estimates on prevalence mortality and survival for coal mine dust lung disease

COAL MINING OPERATIONS AND ITS IMPACT ON SECTORAL

Mining sector plays important roles for Indonesian economic performance especially in East Kalimantan This study investigates a whether economic linkages of the mining sector related with other economic sectors in East Kalimantan b who gets benefit from such mining activities c how is the impact of mining sector for rural and urban s and d what happens if coal mining

Numerical study of hydraulic fracturing

30 06 2017  A novel method of orienting hydraulic fractures in coal mines and its mechanism of intensified conduction Journal of Natural Gas and Science Engineering Vol 27 2015 p 190 199 Search CrossRef Fu X Study of underground point hydraulic fracturing increased permeability technology Journal of China Coal Society Vol 36 2011 p 1317 1321

DETERMINANT OF CAPITAL STRUCTURE COAL AND NON COAL

This research was conducted to analyze the effect of debt costs dividend policy profitability company size business risk and company growth on the capital structure of coal and non coal mining industry on the Indonesia Stock Exchange 2015 2019 period and to analyze the differences in the effect sixth determinant of capital structure in the two industrial subsectors studied

4D seismic data acquisition method during coal mining

Wen Feng Du Su Ping Peng 4D seismic data acquisition method during coal mining Journal of Geophysics and Engineering Volume 11 Issue 3 June 2014 035005 To research coal layer formation changes in the coal mining process and reveal the evolution law of the overburden layer under modern coal mining conditions

Numerical study of hydraulic fracturing

30 06 2017  A novel method of orienting hydraulic fractures in coal mines and its mechanism of intensified conduction Journal of Natural Gas and Science Engineering Vol 27 2015 p 190 199 Search CrossRef Fu X Study of underground point hydraulic fracturing increased permeability technology Journal of China Coal Society Vol 36 2011 p 1317 1321

Agricultural Impacts of Coal Mine Subsidence Effects on

Undergronnd coal mining methodology is moving toward techniques that cause immediate planned subsidence of the overlying land Damage done by subsidence to structures has been documented but the effects on agricultural productivity are undocumented

Coal Is a Gold Mine for Producers After Blistering Rally

05 08 2021  Coal Is a Gold Mine for Producers After Blistering Rally Thermal coal miner Glencore reported record first half earnings and expects the fuel to be a big moneymaker for the rest of the year

Bursting liability indices of coal

01 08 1981  MEASURED VERSUS CRITICAL VALUES OF FRAGMENTATION RATE OF COAL after Htadysz 1 5 6 Critical Average fragmentation Probability fragmentation rate of major Mine Seam rate measured calculated rock burst symbol No V MPa/sec Vt MPa/sec occurrence KJ a 510 791 8 t29 6 yes KJ b 510 32 5 276 2 no Got a 501 331 6 t3l l yes Got b 501 576 7 280 2 yes Pok 506 8 3

EER test and analysis of surface ice cooling

15 04 2020  1 INTRODUCTION Coal is the major energy resource in China Owing to the decreasing of the shallow coal resource and the social demand for the minerals the coal mines become deeper and deeper and the heat hazard becomes more and more serious in consequence Recently more and more coal mines are suffering high temperature and moisture in China 3 4

Mining Metallurgy Exploration

16 10 2021  Mining Metallurgy Exploration is the flagship journal of the Society for Mining Metallurgy Exploration Inc SME an international society of some 15 000 members worldwide consisting of professionals in the mining and minerals industry including engineers geologists metallurgists educators students and researchers

The recovery of coking coal from small coal produced in

Almost 20 000 tons per month of blend coal could be produced from the pea coal by washing at a specific gravity of 1�35 These small coal products derived during normal mining operations in the Witbank coal field could thus make a very important contribution towards satisfying the demand of coke producers for swelling coal

Design of open pit coal mine slopes An integrated

25 04 2007  1987 Design of open pit coal mine slopes An integrated approach International Journal of Surface Mining Reclamation and Environment Vol 1 No 3 pp 179 185

Coal Mine Dust Lung Disease

08 01 2013  Coal mining remains a sizable industry with millions of working and retired coal miners worldwide This article provides an update on recent advances in the understanding of respiratory health issues in coal miners and focuses on the spectrum of disease caused by inhalation of coal mine dust termed coal mine dust lung disease

Alberta government reinstating 1976 coal mining policy

The Alberta government is reinstating the 1976 coal mining policy it revoked last spring after public outcry

Coal Mining and Local Environment A Study in Talcher

Coal mining and air pollution In the era of 21st century this belt has become an industrial hub Along with MCL a good number of coal based thermal power plants several heavy industries coal washeries and a large number of subsidiary industrial units have come up in the area

Modal and strength analysis of coal mine

Józef Dubiński Sustainable development of mining mineral resources Journal of Sustainable Mining Vol 12 2013 p 1 6 Search CrossRef Hirofumi Li Bingrui Tomita Shinji Prevention of explosion in coal mine and management of coal mine gas Journal of Coal Science and Engineering China Vol 15 Issue 2 2009 p 215 219