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Pattern Recognition of Signals for the Fault-Slip Type of Rock Burst in Coal Mines
Published 2015-01-01“…The fault-slip type of rock burst is a major threat to the safety of coal mining, and effectively recognizing its signals patterns is the foundation for the early warning and prevention. …”
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High-Resolution Satellite Reveals the Methane Emissions from China’s Coal Mines
Published 2025-01-01Subjects: “…coal mining…”
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Experimental Study and Application of Inorganic Solidified Foam Filling Material for Coal Mines
Published 2017-01-01“…The results can be used to determine the optimal material ratios of inorganic solidified foam-filled material for coal mines, and filling technology for an airtight wall was designed. …”
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24
Discriminant Model of Coal Mining Microseismic and Blasting Signals Based on Waveform Characteristics
Published 2017-01-01“…The attenuation of the coal mining MS signals is slower and more fluctuant than that of the blasting signal. …”
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Application and Development of an Environmentally Friendly Blast Hole Plug for Underground Coal Mines
Published 2018-01-01“…The impact test on the plug was carried out using an improved split Hopkinson pressure bar test system, and the industrial test was carried out in underground tunnel of coal mine. The tests results showed that, compared with clay stemming, the new method proposed in this paper could prolong the action time of the detonation gas, prevent premature detonation gas emissions, reduce the unit consumption of explosives, improve the utilization ratio, reduce the labor intensity of workers, and improve the effect of rock blasting with low cost of rock breaking.…”
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Coal Mine Gas Explosion Vulnerability Assessment Based on the “Glass Heart” Model
Published 2021-01-01“…Gas explosion, which is the main type of accidents reported in coal mines, comes with serious economic and safety consequences. …”
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Hydrogeochemical Evolution and Control Mechanism of Underground Multiaquifer System in Coal Mine Area
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Multiparty Evolutionary Game Model in Coal Mine Safety Management and Its Application
Published 2018-01-01“…Coal mine safety management involves many interested parties and there are complex relationships between them. …”
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Retracted: Prediction of Coal Mining Subsidence Based on Machine Learning Probability Theory
Published 2022-01-01Get full text
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Study on Temporal and Spatial Characteristics of Overlying Strata in the Deep Coal Mining Process
Published 2021-01-01“…The three-dimensional displacement field distribution nephogram of overlying strata in the process of coal mining is obtained. With the continuous advance of the working face, the roof strata of coal seam undergo the continuous dynamic subsidence process, and the roof subsidence increases continuously, showing the shape of “bowl” with sharp bottom. …”
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31
Gas drainage and utilization in coal mines in China: History, technological advances, and prospects
Published 2025-01-01“…Objective and Methods To promote the research and application of gas drainage and utilization technologies for coal mines, this study systematically summarizes the history of China’s coal mines transitioning from gas pumping to gas drainage, the accurate and effective gas drainage technologies for typical coal mining areas in China, and the latest applications of technologies related to safe gas gathering and transportation, as well as the utilization of gas with a full range of concentrations. …”
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Research on the Characteristics of Coal Bump and Monitoring and Early Warning in Hujiahe Coal Mine
Published 2022-01-01“…Under the high intensity mining disturbance, coal bump is easily triggered by the sudden release of large amount of elastic energy contained in the coal body, which seriously affects coal mine safety production. Triaxial experiments were used to study the damage characteristics of coal samples subjected to loading at the 401103 working face of Hujiahe coal mine, and the critical value of peak strength of coal samples was investigated. …”
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Application of Pedrail Powered Support on Strata Control in Short-Wall Coal Mining
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Optimization and Hydration Mechanism of Composite Cementing Material for Paste Filling in Coal Mines
Published 2019-01-01“…This study can provide references for optimization of composite cementing material for paste filling in coal mines.…”
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Study on Damage Constitutive Model of High-Concentration Cemented Backfill in Coal Mine
Published 2021-01-01“…In order to construct the damage constitutive model (DCM) of high-concentration cemented backfill (HCCB) in coal mine, the generalized Hoek-Brown strength criterion was used as the failure criterion. …”
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Application of Comprehensive Geophysical Prospecting Method in the Exploration of Coal Mined-Out Areas
Published 2019-01-01“…Due to the influence of mining technology, some coal mines will leave mined-out areas (or goafs) in the rock mass after mining. …”
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Quantitative Evaluation for the Threat Degree of a Thermal Reservoir to Deep Coal Mining
Published 2020-01-01“…The area above the medium-threat zone accounts for 71.82% of the total study area, indicating that deep coal mining is affected by multiple factors and that roof water and heat disasters are more likely to occur.…”
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Experimental Study on Dynamic Characteristics of Annular Coal Mine Sandstone after Different Temperatures
Published 2022-01-01“…The study on the dynamic mechanical properties of annular coal mine sandstone under different temperatures has important guiding significance for mine excavation and rock engineering design and construction. …”
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Corrosion Behavior and Failure Mechanism of Prestressed Rock Bolts (Cables) in the Underground Coal Mine
Published 2021-01-01“…In this study, the corrosion behavior and failure mechanism of rock bolt (cable) samples obtained from the underground coal mine were examined and discussed. Macroscopic observation and weight loss tests were carried out for the bolts’ corrosion characteristics without failure. …”
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POSSIBILITIES FOR IMPROVEMENT OF RISK MANAGEMENT PRACTICES IN THE COAL MINING INDUSTRY OF THE FEDERATION OF BOSNIA AND HERZEGOVINA
Published 2014-11-01Subjects: Get full text
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