Therefore this study aims to 1 analyse the environmental burden of a typical underground coal mine in China using the LCA method; 2 obtain quantitative results of life cycle impact assessment LCIA including uncertainty information; and determine the key impact categories on the environment; 3 identify the key processes that cause
In their study of underground coal mine disaster in the USA for 1900 2010 Brnich et al 2010 identified six major disasters out of which one was a fire and claimed the lives of two miners Although the most frequent accidents in USA underground coal mines for the same period are explosions the explosions can often ignite fires
Large scale underground mining of coal resources in China using longwall mining has resulted in ecological and environment problems including surface subsidence that is considered serious due to competing interests of prime agricultural lands food security and regional economic development The subsided lands must be rehabilitated soon after mining to
The Tshikondeni mine started operating in 1984 as an underground high quality hard mine The mine is located 100km east of Tshipise and 17km south east of Masisi adjacent to the Levuvhu River and in the vicinity of the Kruger National Park List Of Coal Mines In South Africa
This study examined a single underground coal mine and investigated two aspects of its operation the disposal of the mine waste through a discharge to a nearby river and the impact of subsidence from an underground longwall to a small waterway above Water quality of the two waterways was monitored over a 2 year period with a monthly investigation over a 6
Coal and Coalbed Methane CBM are rich in resources and complex in geological conditions in Chinese underground coal mines Exploration results show that CBM resources in China occurring within explored coal areas to a depth of 2000 m are estimated at × 10 12 m 3 over % of the proven CBM reserves occur at the depths less than 1500
Information and resources about active underground mines Identifying Opportunities for Methane Recovery at Coal Mines Profiles of Selected Gassy Underground Coal Mines 2002 2016 pdf MB July 2019 Coal Mine Methane Recovery at Active and Abandoned Coal Mines Current Projects and Potential Opportunities pdf KB
expedite the development and commercial availability of new safety technologies for underground coal mining Although the NIOSH Mining Program has facilitated the development of several new technologies to improve underground coal mining safety and health it has observed that the
The longwall retreat and creep displacements are two important parameters for the safety production in underground coal mine At present the problem restricting the displacements measurement of longwall retreat and creep is mainly the influence of coal dust and water vapor at the end of longwall face Therefore this paper introduces UWB radar imaging method with
Underground coal mines are particularly vulnerable to disasters Life of miners is at risk Wang et al 2012 due to collapse of mine pillars roof fall inundation air blast presence of gases and coal dust and occurrence of explosion and mine fire Brady 2007; Wang et al 2013; Gowrisankaran et al 2015 It causes many fatalities damage to human lives loss of
5 88 Anthracite Coal 89 Underground Mining of Coal and Coal Preparation Facilities Permitting A permit is required to conduct underground mining activities Underground mining activity includes the surface operations incidental to the underground area of extraction The permit area includes support areas facilities and roads Permits are
Coal is a widely distributed and economically viable energy resource worldwide In 2023 the global coal demand exceeded billion tons reaching a historic high [1] However underground coal mining causes a series of environmental problems such as ground subsidence ecological damage to water resources land desertification and the discharge of large amounts
Heat stress is a major concern for the health safety and productivity of miners working in hot and humid underground mines At greater depth heat inside underground mines increases due to geothermal gradient heat released from high capacity machinery exposed rock surface auto compression of air human metabolism etc Prolonged physical work in thermal
As a common device of removing particles from the air [9] fibrous filters have gradually become the main player in dust control for coal mines because they are effective for all particle sizes even at high concentrations in underground coal of the coal dust particles are in the range of 1 μm to 10 μm in diameter which enables effective filtration [10
The Ensham mine is an open cut and underground coal mine located near Emerald Queensland Australia In February 2023 previous owner Idemitsu Australia sold its stake in the Ensham coal mine to Sungela Pty Ltd — a consortium of Thungela Resources Limited 75% Mayfair Corporations Group Pty Ltd % and Audley Energy Limited %
An underground coal production system is a complex social technology system with dynamic and nonlinear characteristics which are influenced by complicated geological conditions underdeveloped technology insufficient miner skills and weak safety management [6 7] These characteristics of coal mine system determine that the accident is caused by the
PDF Underground Mining Methods; Soft rock Mining Methods; Blast mining; Shortwall mining;Coal Skimming or Sink and Float method; Hard rock Find read and cite all the research you
The Underground Coal Mines sector consists of all underground coal mines that liberate 36 500 000 actual cubic feet of methane equivalent to approximately 17 579 metric tons CO 2 e or more per year Facilities in this sector include both underground coal mines under development and those categorized by the Mine Safety and Health Administration as active
Underground coal mines present a considerable number of hazards including specialized equipment high temperatures humidity rock stresses coal and silica dusts and harmful gases These hazards have the potential to trigger accidents that can lead to injuries
This paper introduces a search and rescue robot system used for remote sensing of the underground coal mine environment which is composed of an operating control unit and two mobile robots with explosion proof and waterproof function This robot system is designed to observe and collect information of the coal mine environment through remote control Thus
