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Stability and Control of Retracement Channels in Thin Seam Working Faces with Soft Roof
Published 2021-01-01“…The safe and efficient mining of the coal mine is ensured, and the research results can provide guidance for similar working faces.…”
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403
Single Pick Cutting Rock Load Identification Based on Improved Regularization Method
Published 2021-01-01“…The research could benefit the design of the cutting system and the arrangement of the pick on the coal mine or tunneling machinery.…”
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404
Study on Ultrasonic Response to Mechanical Structure of Coal under Loading and Unloading Condition
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405
Roadway Deformation and Control under Multidisturbed Secondary High Stress
Published 2022-01-01“…Aiming at the serious deformation and failure of mining roadway under the condition of high secondary stress in Xuchang Coal Mine, Shandong Province, the deformation law of surrounding rock under the influence of high secondary stress in the original support belt transport roadway was analyzed by the method of field measurement and numerical simulation, and the control scheme of surrounding rock was put forward. …”
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406
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407
Study on Stress Relief of Hard Roof Based on Presplitting and Deep Hole Blasting
Published 2020-01-01“…With the combination of the two blasting methods, the end-mining coal pillar size of Luning Coal Mine can be reduced to 60 m. The method combining presplitting and deep hole blasting can effectively reduce the end-mining coal pillar size and reduce the impact of mining on the deformation of the dip roadway.…”
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408
Modelling of P-wave velocity changes in coal seams with increased depth: a case study
Published 2025-01-01“…The research was performed at the Zofiówka Coal Mine in the geological and mining conditions of the Upper Silesian Coal Basin in Poland. …”
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409
Evaluation of a 38 L Explosive Chamber for Testing Coal Dust Explosibility
Published 2019-01-01“…Coal dust explosions are the deadliest disasters facing the coal mining industry. Research has been conducted globally on this topic for decades. …”
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410
Numerical Simulation of Mining-Induced Damage in Adjacent Tunnels Based on FLAC3D
Published 2021-01-01“…The tunnels were established crossing over the old goafs of a coal mine. The tunnels have been damaged three times between 2014 and 2016. …”
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411
A Study of Safety Coefficient Determination and Support Parameter Optimization Based on Vulnerability Preevaluation
Published 2021-01-01“…This method provides a reliable basis for the optimization design of bolt support parameters in coal mine gateway.…”
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412
Characterization and Identification of Coal and Carbonaceous Shale Using Visible and Near-Infrared Reflectance Spectroscopy
Published 2018-01-01“…Because of the high organic carbon concentration in carbonaceous shale, a large proportion of carbonaceous shales are often misclassified into coals using visible and near-infrared (VIS-NIR) reflectance spectroscopy in the field of coal-gangue identification of hyperspectral remote sensing of coal mine. In order to study spectral characterization of coal and carbonaceous shale, three bituminite samples and three carbonaceous shales were collected from a coal mine of China, and their spectral reflectance curves were obtained by a field spectrometer in the wavelength range of 350–2500 nm. …”
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413
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Exploring the economic occupational health, safety, and fatal accidents in high-risk industries
Published 2025-02-01“…Conversely, each safety accident resulted in 1.052 coal mine fatalities and 0.153 cases of occupational disease. …”
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415
Study on Surrounding Rock Stability Mechanism of Gob-Side Entry Retaining with Prefabricated Fracture
Published 2021-01-01“…The stability of the surrounding rock of the roadway is more stable than that of other angles, which is conducive to the safe mining of 5249 working faces in Beipingdong Coal Mine.…”
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416
Research on Coal Mechanical Properties Based on True Triaxial Loading and Unloading Experiment
Published 2021-01-01“…To study the safety issues caused by coal mine excavation, self-developed simulation of earth interior atmosphere and sound test system was used to perform true triaxial loading and unloading tests of coal. …”
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417
Lugares amados, lugares sombra: éticas y estéticas en tiempos de transición
Published 2025-01-01“…The disappearance of these traditional energy practices is a profound paradox: at a moment when the urgency to cease burning fossil fuels is clearer than ever, coal mining erases age-old energy practices that have thrived in simplicity, small scale, and ethical harmony with the land. …”
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418
Mining-Induced Damage Characteristics of Floors during Fully Mechanized Caving Mining: A Case Study
Published 2018-01-01“…To study the mining-induced damage characteristics of floors during fully mechanized mining, in situ measurements were performed using the hollow inclusion strain sensors in the No. 100502 (80 m, 180 m) mining face of the Yitang Coal Mine in the Huoxi coal field in the Shanxi Province of China. …”
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419
The Migration of Coalbed Methane under Mining Pressure and Air Injection: A Case Study in China
Published 2018-01-01“…Gas outburst has always affected the safety of coal mining. To eliminate this risk by high-efficiency extraction of coalbed methane (CBM) in 4102 working face of number 3 coal seam in Hebi Number 3 coal mine, a model of CBM extraction in working face was established which was considering the mining impact of adjacent 4101 working face. …”
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420
Research on Control of Rib Spalling Disaster in the Three-Soft Coal Seam
Published 2021-01-01“…Rib spalling disaster at the coal mining faces severely restricted the safe and efficient output of coal resources. …”
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