influence influence of coal mining
Research on the influence of coal mining on aquifer and ...
2019-4-10 · To ensure safety production of coal resources and effective protection of aquifer, it is necessary to research the influence of coal mining on aquifer. Based on field investigation and collection of geology, hydrogeology etc. of coal mining area in Shanxi Province, the influence of coal mining on aquifer was analyzed from three aspects such as ...
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Environmental Influence of Coal Mining Thesis Essay
Deprive mining not merely exacerbated the negative environmental effects of past forms of mining but also added one other dimension for the environmental trauma of the location. As a result of this form of mining it was found that in the 1920s that mining in the areas of Appalachia had had a significant influence on waterways and acid drainage.
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Influence of Coal Extraction Operation on Shaft Lining ...
2014-4-27 · Influence of Mining Width. Figure 5 shows the influence of mining width, when the mining width is 100 m, the maximum stress increases dramatically and it was almost 2 times higher than that of the 50 m wide. Therefore, due to the increase of mining width, there is a significant stress concentration occurs in shaft lining near the mining panel.
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(PDF) The Influence of Activated Coal Mining Wastes on
The activated coal mining waste showed better performance, reaching similar strength to control mortar, better pore size refinement and an important
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(PDF) Influence of different mining layouts on the ...
Under the serial action of non-pillar mining, top-coal caving and protected coal seam mining layouts, the values of radial deformation, volume strain and Poisson’s ratio increase, while the
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PAPER OPEN ACCESS Influence of Underground Coal
2020-5-29 · Influence of underground coal mining on soil erosion In this paper, the modified soil loss formula (RUSLE) is used to calculate the amount of soil erosion caused by underground coal mining. The calculation formula is as follows: ARKLSPC (1) Type, A is the average soil loss per unit area, t/(hm2.a); R is the precipitation erosivity factor, ...
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Influence of anti-pyrogenic materials on coal mining waste ...
2016-1-1 · Trials testing the influence of the anti-pyrogenic additives on coal mining waste's tendency to self-ignite in laboratory conditions were conducted through adaptation (without any modification) of methods in which anti-pyrogenic additions were tested on a relatively small sample mass of only coal (Cebulak et al., 2009, Cebulak et al., 2010).
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FACTORS AFFECTING COAL PRODUCTION AND USE
2007-3-19 · ment, and labor. Once mining starts, recent laws and reguIations (e. g., the Surface Mine Con-trol and Reclamation Act (SMCRA) and the Coal Mine Health and Safety Act (CM HSA)) affect methods and costs. Labor-managernent conflicts can Iimit coal availability and color customers’ perceptions of future reliability.
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Influence of different mining layouts on the mechanical ...
2012-11-1 · Loading schemes. There are three typical mining layouts in coal seam, protected coal mining, top-coal caving and non-pillar mining, and the different mining layouts cause stress redistribution, the corresponding stress states. The redistribution of stress is important to roadway support, stability analysis and safe mining.
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Influence Mechanism of Coal Crack Development on Coal ...
2020-9-17 · To study the regularity of anaerobic fermentation in coal during coal crack development, a series of tests and analyses was carried out. Test objects included dynamic air percolation with crack evolution, influence of changes in specific surface area, and rate of O2 percolation on anaerobic fermentation. The key factors affecting anaerobic fermentation at
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Research on the influence of coal mining on aquifer and ...
2019-4-10 · To ensure safety production of coal resources and effective protection of aquifer, it is necessary to research the influence of coal mining on aquifer. Based on field investigation and collection of geology, hydrogeology etc. of coal mining area in Shanxi Province, the influence of coal mining on aquifer was analyzed from three aspects such as ...
Read More
The Influence Characteristics of Open-Pit Coal Mining on ...
Abstract: In the context of extensive high-intensity mining in open-pit coal mines, the temporal and spatial changes of the groundwater level and the range of disturbance caused by the mining activities remain unclear, and the traditional hydrological observation methods are insufficient in obtaining accurate and real-time groundwater monitoring data under the open-pit mining
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12 Environmental Effects of Coal Mining - Environment 911
Coal mining is a loud, day- and night-long process that disrupts the lives of those in the surrounding communities, reduces the quality of life and can go on for decades. #11 Loss Of Wildlife. Coal mining requires a large expanse of territory. When a
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(PDF) The Influence of Activated Coal Mining Wastes on
The activated coal mining waste showed better performance, reaching similar strength to control mortar, better pore size refinement and an important reduction in mean pore size of 60% compared to ...
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PAPER OPEN ACCESS Influence of Underground Coal
2020-5-29 · Influence of underground coal mining on soil erosion In this paper, the modified soil loss formula (RUSLE) is used to calculate the amount of soil erosion caused by underground coal mining. The calculation formula is as follows: ARKLSPC (1) Type, A is the average soil loss per unit area, t/(hm2.a); R is the precipitation erosivity factor, ...
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Study on Influence and Evaluation of Coal Mining on ...
Through the synthetically analysis of the characteristics of coal mining and the environment quality of the mining area, the environment quality evaluation index system is formed: water and soil environment quality are the principal layer, the influence factors are measure layer. The evaluation degree of every factor is defined by fuzzy synthesis evaluation method and the
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The Influence of Activated Coal Mining Wastes on the ...
2015-9-24 · One of these lines of research is based on coal mining waste, which once activated thermally, it becomes a highly pozzolanic product (ACM). This study reports the influence of activated carbon mining waste on the formation and evolution of the mineralogical phases in the ACM/cement system as well as their influence on the microstructure up to ...
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The Influence of Coal Physical and Mechanical Properties ...
2020-11-4 · 241 The Influence of Coal Physical and Mechanical Properties and Mining Energy Consumption Factor on Airborne Respirable Dust Level Antoni Koziel, 1 Malgorzata Malec, 1 and Ewa Wardas2 1KOMAG, Mining Mechanization Centre, 44-101 Gliwice, Poland; 2Rybnicka Coal Joint Stock Co., 44-253 Rybnik, Poland ABSTRACT
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Identify of Runoff Influence Factors in Coal Mining Area ...
the Kuye River runoff, and considered it has been affected by the coal mining in recent years [5-6]. But to what extent the influence of coal mining on river runoff, and how it relates to other influencing factors, this study also is less. In this paper,
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Negative Effects of Coal Mining - TheWorldCounts
The negative effects of coal mining cannot be disputed: Destruction of Landscapes and Habitats: Strip mining also known as surface mining, involves the stripping away of earth and rocks to reach the coal underneath. If a mountain happens to be standing in the way of a coal seam within, it will be blasted or levelled - effectively leaving a ...
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The Influence Characteristics of Open-Pit Coal Mining on ...
Abstract: In the context of extensive high-intensity mining in open-pit coal mines, the temporal and spatial changes of the groundwater level and the range of disturbance caused by the mining activities remain unclear, and the traditional hydrological observation methods are insufficient in obtaining accurate and real-time groundwater monitoring data under the open-pit mining
Read More
12 Environmental Effects of Coal Mining -
Coal mining is a loud, day- and night-long process that disrupts the lives of those in the surrounding communities, reduces the quality of life and can go on for decades. #11 Loss Of Wildlife. Coal mining requires a large expanse of
Read More
Coal‐mining intensity influences species and trait ...
2021-2-23 · semblages to coal mining across a gradient of mining influence in headwater streams of the upper Clinch and Powell river basins in Southwest Virginia. Headwater streams were chosen to isolate min-ing effects and minimise confounding, cumulative effects of other anthropogenic activities in watersheds. Our study objectives are
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Surface coal mining influences on macroinvertebrate ...
Surface coal mining influences on macroinvertebrate assemblages in streams of the Canadian Rocky Mountains Environ Toxicol Chem. 2015 Sep;34(9):2138-48. doi: 10.1002/etc.3052. Epub 2015 Jul 28. Authors Kathryn A Kuchapski 1 , Joseph B Rasmussen 1 Affiliation 1 ...
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Impact of coal mining on groundwater of Luohe
2020-9-25 · Another influence of underground mining is that the total flow from 34 springs in 8 southern coal mines of the area has decreased by 286.48 L/s with a rate of decrease at 46.95% from 2007 to 2017. The areas that groundwater level falls or spring flow declines are manly located in the mine gob areas.
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The Influence of Activated Coal Mining Wastes on the ...
2015-9-24 · One of these lines of research is based on coal mining waste, which once activated thermally, it becomes a highly pozzolanic product (ACM). This study reports the influence of activated carbon mining waste on the formation and evolution of the mineralogical phases in the ACM/cement system as well as their influence on the microstructure up to ...
Read More
Coal and the environment - U.S. Energy Information ...
2021-12-2 · Coal is an abundant fuel source that is relatively inexpensive to produce and convert to useful energy. However, producing and using coal affects the environment. Effects of coal mining. Surface mines (sometimes called strip mines) were
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Influence of Coal Extraction Operation on Shaft Lining ...
Certain factors including mining depth, safety pillar width, mining width and mining height were taken as the influence factors in the simulation. The results indicated that the coal extraction could lead to the initiation of the failure in the aquifer and rock layers.
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Negative Effects of Coal Mining - TheWorldCounts
The negative effects of coal mining cannot be disputed: Destruction of Landscapes and Habitats: Strip mining also known as surface mining, involves the stripping away of earth and rocks to reach the coal underneath. If a mountain happens to be standing in the way of a coal seam within, it will be blasted or levelled - effectively leaving a ...
Read More
Identify of Runoff Influence Factors in Coal Mining Area ...
题名 Identify of Runoff Influence Factors in Coal Mining Area Based on Stepwise Regression Analysis 作者 Wu Xi-jun Dong Ying 作者机构 Department of Architecture Engineering, Yulin University,Department of Architecture Engineering, Yulin University
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