Constraints of coal mining safety management efficiency
This work aims to explore the constraints affecting safety management efficiency through a mathematical model accompanied by some effective measures guided by the theory of constraint (TOC). An index system for coal mining safety management efficiency Abstract: BACKGROUND:Investigation of the safety management efficiency in a coal mine aims to improve its safety management level thus ensuring coal Constraints of coal mining safety management efficiency
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Multi-dimensional safety risk assessment on coal mines
The degree of mechanization of large coal mines in China has increased from 32.5% in 1978 to 97.9% in 2020, and the per capita coal production has reached The sustainable development of coal resources and coal mine safety has always been an important long-term development plan for the Chinese government(Shi Reform and development of coal mine safety in China: An
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Risk management in the hard coal mining industry: Social
To show the scale and extent of risk connected with collieries’ liquidation, an analysis of the costs made on the basis of the Polish hard coal mining industry is The disturbance from coal mining has a long-term cumulative effect on a region, puts strong pressure on the environment. Coal mining intensity can measure the Coupling and coordination of coal mining intensity and
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Constraints of coal mining safety management efficiency
Methods: An index system for coal mining safety management efficiency (CMSME) is first established. Then a mathematical model roughly identifying the BACKGROUND Investigation of the safety management efficiency in a coal mine aims to improve its safety management level thus ensuring coal mining safety. Constraints of coal mining safety management efficiency.
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Differential decomposition of total-factor energy
TFEE of coal mining cities are measured under the environmental constraints. • Both dynamic decomposition and static decomposition were considered Coal-mining subsidence causes ground fissures and destroys surface structures, which may lead to severe casualties and economic losses. Time series interferometric synthetic aperture radar (TS-InSAR) plays an Remote Sensing Free Full-Text Improving
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Differential decomposition of total-factor energy
Coal mining cities are both energy producers and large consumers. Combined with the fossil energy characteristics of coal, coal can cause environmental pollution in the process of mining and utilization. Total-factor energy efficiency (TFEE) has an important impact on energy consumption in coal mining cities and thus on improving The results show that the coal mining capacity in 2010 scores 42.58 on average, and the coal output which complies with the stantards of the sustainable capacity of coal mining and scores over 70Determining the scale of coal mining in an ecologically fragile mining
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(PDF) The South African coal mining industry: A
The paper concludes by recommending the need for a scientific study on supply chain constraints facing the coal mining industry in South Africa. Defining strategic alliance across a continuum ofroom-and-pillar mining leaves pillars of coal to support the mine roof. High-extraction pillar removal results in similar subsidence as longwall mining. In the USA, longwall mining and most groundwater case studies have been conducted since the 1970s in the Appalachian coalfield, a dissected plateau region of moderate to high relief (of Groundwater as an environmental constraint of longwall
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Remote Sensing Free Full-Text Improving Boundary Constraint
Coal-mining subsidence causes ground fissures and destroys surface structures, which may lead to severe casualties and economic losses. Time series interferometric synthetic aperture radar (TS-InSAR) plays an important role in surface deformation detection and monitoring without the restriction of weather and sunlight conditions. In addition, the Abstract. The study explored possible areas for applying the Theory of Constraints in the South African coal mining industry supply chain with the aim of improving effectiveness, efficiency and(PDF) Applying the Theory of Constraints in the South African Coal
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Determining the scale of coal mining in an ecologically fragile mining
A reasonable mining scale is very important for the development of mining areas. In view of the lack of water resources in arid and semi-arid areas, this paper studies the scale of coal mining in arid and semi-arid areas under the constraint of the water resources carrying capacity (WRCC) with the aim of realizing the conservation mining of A semicontinuous process system consisting of a single-bucket excavator, truck, crushing station, and belt conveyor is the main coal mining process system of a large-scale hard coal open-pit mine. Through analyzing the coal mining production process, the key issues of coal mining truck flow optimization are obtained. Statistical method of using Study on Optimization of Coal Truck Flow in Open-Pit Mine
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Review and Challenges in the Geophysical Mapping of Coal
In the case of discontinuous mining of coal seams, or different filling properties in mining roadways (for example, the roadways become filled with mud, water, and gravel, leaving occasional empty holes), then relatively low-resistivity anomalies will appear locally in the resistivity profiles Figure 4(b).. As for the fault, as it destroys the However, state-owned coal mining enterprises also need to consider the value of the assets of the state-owned enterprises (the provincial group is a listed company with total assets of 8.387Multi-dimensional safety risk assessment on coal mines
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Constraints of coal mining safety management efficiency
The case study shows that breaking through constraints during the production is beneficial to CMSME. Furthermore, a coal mine with a high CMSME index may still, at some time, have one, or more, bottleneck constraints. Keywords: Constraints, coal mining, safety management efficiency, model. DOI: 10.3233/WOR-203138Opencast coal mining has a large impact on the land surface, both at the mining pits themselves and at waste sites. Urbanization in China drives farmland uphill under the constraint of theWu XIAO Doctor of Geomatics Zhejiang University,
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GUIDELINES FOR THE INTEGRATED PLANNING AND
geotechnical, mining, engineering and economic data into a single document to define and describe the exploitation strategy for a particular mineral or coal deposit within acknowledged and identified legal, financial and regulatory requirements and constraints. Mine planning and design is an iterative and continuous process which starts Given its abundant coal mining activities, the Upper Silesian Coal Basin (USCB) in southern Poland is one of the largest sources of anthropogenic methane (CH4) emissions in Europe.(PDF) Observational constraints on methane emissions from Polish coal
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Post-mining recoveries Nature Reviews Earth & Environment
Post-mining recoveries. Mining provides critical resources but is associated with environmental degradation owing to physical disturbance and mining by-products. The direct impacts of mining on1.1 Background. Australia is the world’s largest coal exporting country where the export volume of coal is around 400 million tonnes in 2013–2014. Australian coal employs almost 200,000 people and is worth $60 billion to the national economy [].The coal mining transport system is an important element in coal mining industry and plays a vital A new constraint programming approach for optimising a coal
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Prediction of 3D deformation due to large gradient mining
The results show that the predicting 3D deformation method of D-InSAR for large gradient of mining subsidence based on constraints of improved dynamic prediction model proposed in this paper has certain engineering application values. ABSTRACT After underground coal resources are mined out in mining areas, large-gradient deformation is In terms of the ratio of fatalities to the amount of coal produced, China’s coal mining industry still appears much more deadly than the coal mining activities in the US. For the production of every Mt coal in China in 2006, 1.91 miners lost their lives, while the number for the US in the same year was only 0.05 (China Labour Bulletin, quotedCheap but Costly: Constraints of Economic Development in the Coal
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Determining the scale of coal mining in an ecologically fragile mining
A reasonable mining scale is very important for the development of mining areas. In view of the lack of water resources in arid and semi-arid areas, this paper studies the scale of coal mining in arid and semi-arid areas under the constraint of the water resources carrying capacity (WRCC) with the aim of realizing the conservation mining of 1 Introduction. Recovery of coalbed methane (CBM) from coal seams can not only benefit mining safety, reduce greenhouse gas emissions, and also increase clean energy supply (Karacan et al., 2011; Moore, 2012).In the Junggar Basin, the CBM resources have been estimated at 3.83 trillion cubic meters, which is the third largest CBM basin in Coalbed methane accumulation, in-situ stress, and permeability of coal
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