WEBFeb 25, 2014 · Within its borders are 22 open cast mines in need of restoration, each a casualty of the collapse of the country's two largest mining operators. Last April, Scottish Coal, borne out of the privatisation of British Coal in 1997, was placed into liquidation by KPMG against a backdrop of falling prices and rising costs.
WEBMar 1, 2022 · Such work provides a theoretical foundation and technical support for systematic research on the process of land reclamation in large opencast coal mines (Song et al., 2020). In general, the important roles of monitoring and evaluating the land reclamation effects at different stages in guiding the ecological restoration of degraded .
WEBApr 4, 2007 · Environmental Quality Management is a sustainability journal at the intersection of science, engineering social system development focused on natural resource management.
WEBDec 14, 2021 · A Review on Blast Performance Monitoring Techniques in an Opencast Coal Mine. December 2021. Conference: 4th International Conference on Opencast Mining Technology Sustainability (ICOMS2021) At ...
WEBSep 16, 2022 · Planning and managing equipment systems of surface mining are critical for achieving higher production and productivity. Poor performance of equipment systems can endanger the economic viability of mining operations []–[].OB removal is a major process in the surface mining of coal, accounting for over 60% of the mining cost [4, .
WEBRock benches at the top of the blastcasting area are divided horizontally. The coal seam in the second mining districts inclines from North to South with the dip angle increasing. As a result, the bench height for the blastcasting technique ranges from 35 m to 50 m with the width of the blasting area being 85 m.
WEBOct 1, 2023 · Coal is the major source of power in India and world over. Coal mining is an essential industry which has a major role in the economic development of the country. Most major mining activities contribute directly or indirectly to air pollution. Coal dust is a major air pollutant which affects the personal working in the mines and also people residing in .
WEBThis process is experimental and the keywords may be updated as the learning algorithm improves. References 'Opencast Coal Mining in Great Britain', W. G. Martin, Opencast Mining, Quarrying and Alluvial Mining, Institution of Mining and Metallurgy, 1965, p. 617.
WEBMar 1, 1997 · Topsoil is essential to abandoned mines and has to be stockpiled separately for postmining land reclamation. If the storage period exceeds the 'shelf life' of the topsoil, it cannot be preserved by technical reclamation only. Opencast coal mining production in India is predicted to increase from the present level of 180 million tonnes per year to .
WEBJan 9, 2020 · Jharkhand's Rajmahal opencast coal mine project of Eastern Coalfields has also been given go ahead by the ministry. It will have a production capacity of nearly 24Mtpa. ... the Government of India has also approved an ordinance to open up coal mining in the country to noncoal companies while lifting restrictions on the use of .
WEBOct 24, 2015 · Pingshuo mine site, an area of 376 km 2, is the largest opencast coal mining area in started in 1985 and is expected to be closed in the 2070s, loing in the central part of SGR watershed (Fig. 1).Dumps in the mine site have a stepped design with maximum step height of 50 m, a main step gradient of 35–45 %, a .
WEBMar 1, 2013 · Soil development is the key process of mine spoil reclamation. To investigate the effects of different plant species and reclamation time on the soil development, 9 plots in the reclaimed spoils of Pingshuo opencast coal mine in Shanxi, China were established and the physical, chemical and microbiological properties of the soils were analyzed. .
WEBHow we expect local authorities to ensure opencast coal mines are properly managed when mining ends. Environmental impact assessment and undetermined reviews of old mineral planning permissions Guidance on regulations that apply to the environmental assessment of stalled reviews.
WEBMar 1, 2018 · Opencast coal mining can lead to a large number of environmental problems, including air pollution, water pollution, and solid waste occupation. ... Moreover, mined land reclamation was an ...
WEBThe coal industry serves a vital role in the nation's economy by producing fuel for more than half of its electricity. Despite the industry's importance, industry financial data for 2005—the strongest year for the coal industry in recent years—shows that it is a relatively small industry with revenues totaling 20 billion to 25 billion and net income between .
WEBAug 14, 2014 · Research studies carried out on opencast mine illumination by different investigators are limited in both India and abroad. Mayton [] investigated different surface mining operations in various regions of the United States using visual task evaluation, a method used by the CIE and the IES and data were collected for surface mines and .
WEBJan 1, 2023 · The technology of coal mining has gone through continual evolutions and several revolutionary changes which transformed the methods, equipment, and productivity over the decades. In recent years, advances in technology focused more on the use of communiion systems, automation, and data sciences for the health and safety of the .
WEBThe coal industry employed 90,977 people in 2022. million tonnes produced in 2022 with total coal sales of billion. 70% of coal volume is consumed domestically and more than 70% of electricity demand is generated from coal power. Richards Bay Coal Terminal (RBCT) serves as the primary export port. RBCT has a dedied rail line.
WEBJan 1, 2016 · It is found that the extraction of coal in the opencast mining and the associated processes such as coal piles, supplying pipelines, communiion roots like railway lines and public works have ...
WEBThis chapter discusses the selection of opencast mining equipment by a multicriteria decisionmaking process and some of the factors that went into the selection process. (2002). Selection of opencast mining equipment by a multicriteria decisionmaking process. Mining Technology: Vol. 111, No. 2, pp. 136142.
WEBMay 1, 2021 · The diversity, composition and ecological guilds of soil fungal communities in relation to revegetation were assessed during an opencast mining dump reclamation chronosequence of the soil <1, 5, 10, 15 and 20 years after the start of reclamation. Soil pH and electrical conductivity, total nitrogen (TN), soil organic carbon (SOC), available .
WEBMay 3, 2016 · As mines discharge a huge volume of water during the extraction process, the water table in the area is declining and the water retention capacity of cultivable land is declining over time. ... Chaulya SK (2004) Assessment and management of air quality for an opencast coal mining area. J Environ Manag 70 (1):1–14. Dasgupta P, Heal G (1974 ...
WEBThe opencast coal mining complex extends over two mines within the Witbank Coalfield, to the south of Emalahleni, Mpumalanga Province. ... Bucket selection is a critical factor in any extraction process. According to CAT Mining (2017), inseam coal is best mined with a rocktype bucket, and they recommend that serrated edge buckets be used as ...
WEBJul 9, 2023 · The study aims to simulate the stagewise, yearwise mine seepage predictions and the corresponding impact on the groundwater regime (drawdown and heads) in accordance with the approved mine plan for certain coal mines in Central India. To that end, the optimized and efficient watershed area of km2 has been .
WEBThe pillars are extracted using a surface mining method referred to as opencast pillar mining, with an aim of maximizing coal recovery from the pillars. The selection and design process of the opencast pillar mining method was also influenced by the coal production rates and demand from the power station.
WEBMay 15, 2019 · Dramatic changes in soil during opencast coal mine activities inevitably change soil water and solute movement. The objectives of this study were to assess the effects of mining on solute transport in different soil profiles and to find the relationships between solute transport parameters and soil physicochemical characteristics. After .
WEBJun 1, 2018 · Robinia pseudoacacia is the dominant tree species in opencast coal mine reclamation in the Loess Plateau, China. Nevertheless, the longterm changes of reclaimed mine soils (RMSs) and vegetation in the reclaimed sites under R. pseudoacacia monoculture forest have not been sufficiently elucidated. In this study, the RMSs .
WEBFeb 1, 2018 · 1. Introduction. Opencast mining, the most common coal mining technique worldwide (Ussiri and Lal, 2005), accounts for 15% of coal output in China (Huang et al., 2015).Opencast mining naturally results in intensive disturbance to terrestrial ecosystems (Ussiri and Lal, 2005).In the mining process, overburden is removed by excavation, .
WEBMay 5, 2016 · To try to reduce the destruction of vegetation on the plateau in the process of coal mining, eradiing turf must be prohibited, and the turf should be transplanted before construction. ... Wu, J. et al. Simulation analysis of the impact of excavation backfill on permafrost recovery in an opencast coalmining pit. Environ Earth Sci 75, 837 ...
WEBThus, underground coal production in India is declining. Due to the large scale extraction of nearsurface coal resources by opencast mining, nearsurface coal resources will be depleted in future. Moreover, opencast mining has several environmental impacts, which is ignored keeping in view the colossal coal demand of the country.
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