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Influence of coal cowl parameters on the coal loading process of thin coal seam shearer drum
The low loading rate of the thin coal seam shearer drum is a severe obstacle to the efficient mining of thin seam resources, and the auxiliary drum...
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A near-infrared spectroscopy dataset of coal and coal-measure rock under diverse conditions
The identification technology for coal and coal-measure rock is required across multiple stages of coal exploration, mining, separation, and tailings...
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Safety evaluation method of bottom coal thickness in thick coal seam roadway
In recent years, the number of roadway floor rock burst accidents is increasing, which seriously restricts the safe production of the mine....
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Top coal drawing law for an extra thick coal seam under the single round group drawing method
To solve the problems of poor top coal drawing, lagging collapse, and difficulty in parallel operation of mining and drawing in extra-thick coal...
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Structural characterization analysis and macromolecular model construction of coal from Qinggang** coal mine
Understanding the molecular structure characteristics of coal at the molecular level is of great significance to realize the rational utilization and...
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Influence of magma intrusion on coal geochemical characteristics: a case study of Tiefa Daxing coal mine
Magma intrusion has an important influence on the physical and mechanical properties of coal and rock. In the area of magma intrusion, disasters such...
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Research on overburden structural characteristics and support adaptability in cooperative mining of sectional coal pillar and bottom coal seam
In the mining process of the II1 coal seam at Zhaogu No. 2 coal mine, a method of stratified mining is employed, leaving relatively wide coal pillars...
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Microseismic comprehensive evaluation method for coal burst: a case study in the Zhaolou Coal Mine
To explore the multiparameter precursor characteristics of pre- and post-coal burst. Based on a coal burst of LW 1305 in the Zhaolou Coal Mine, an...
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Boundary quantitative characterization of the top-coal limit equilibrium zone in fully mechanized top-coal caving stope along the strike direction of working face
In the process of fully mechanized top-coal caving mining, the top-coal is affected by mining-induced stress, and the stress varies along the strike...
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Macroscopic fracture mechanism of coal body and evolution characteristics analysis of impact force in deep coal and gas outburst
With the increase of mining depth and intensity, coal and gas outburst dynamic disasters occur frequently. In order to deeply study the macroscopic...
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Experimental study on the transporting and crushing effect of gas on coal powder during the develop stage of coal and gas outburst in roadway
In recent years, coal and gas outburst disasters are still occurring and difficult to prevent, seriously endangering the safety of coal mine...
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An analytical methodology of rock burst with fully mechanized top-coal caving mining in steeply inclined thick coal seam
Rock burst disaster is still one of the most serious dynamic disasters in coal mining, seriously restricting the safety of coal mining. The b value...
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Analysis and construction of the coal and rock cutting state identification system in coal mine intelligent mining
The recognition of cutting state of coal-rock is the key technology to realize “unmanned” mining in coal face. In order to realized real-time...
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Boundary optimization of inclined coal seam open-pit mine based on the ISSA–LSSVR coal price prediction method
As an important link in the complex system engineering project of open pit mining, the quality of the boundary determines the performance of the...
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Attenuation law of concentrated stress under coal pillar of close coal seams and its application
When mining the multiple coal seams in close proximity, the coal pillar left in the goaf causes stress concentration in the floor. The layout of...
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Deploying green hydrogen to decarbonize China’s coal chemical sector
China’s coal chemical sector uses coal as both a fuel and feedstock and its increasing greenhouse gas (GHG) emissions are hard to abate by...
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Research on the dynamic evolution law of fissures in shallow-buried and short-distance coal seam mining in Lijiahao Coal Mine
Aiming at the problem of spontaneous combustion of coal relics caused by the overburden fracture network penetrating the upper and lower coal seams...
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Evaluation of coal seam floor water bursting in multi-aquifer Gequan coal mine, China
A water-bursting evaluation of the coal seam floor is critical to ensure safety of coal mine production. The vulnerability index method based on AHP...
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Precise detection of coal and gangue based on natural γ-ray
To address the technical limitations of automatic coal and gangue detection technology in fully mechanized top coal caving mining operations, the low...
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In-situ experimental study on hydro-borehole technology application to improve the hard coal excavating techniques in coal mine
The hydro-mining technology is considered as a promising method of bituminous coal excavation. The paper presents the results of the in-situ...
