Sequence stratigraphic interpretation of peatland evolution in thick coal seams: Examples from Yimin Formation (Early Cretaceous), Hailaer Basin, China
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Coal Geology"
DOI: 10.1016/j.coal.2018.07.013
Abstract: Abstract Peat formed in mire settings sensitively records environmental fluctuations during deposition including changes in water table or base level and accommodation. On this basis coal seams, as geologically preserved peats, can provide evidence of… read more here.
Keywords: coal seams; thick coal; cycle; yimin formation ... See more keywords
Surrounding rock failure analysis of retreating roadways and the control technique for extra-thick coal seams under fully-mechanized top caving and intensive mining conditions: A case study
Sign Up to like & getrecommendations! Published in 2020 at "Tunnelling and Underground Space Technology"
DOI: 10.1016/j.tust.2019.103241
Abstract: Abstract Most retreating roadways in extra-thick coal seams, are affected by multiple mining activities under fully-mechanized top caving mining conditions. Surrounding rock deformation and stress evolution of the roadways are complex under intensive mining activities… read more here.
Keywords: mining; thick coal; surrounding rock; mining conditions ... See more keywords
Spatio-temporal distribution and gas conductivity of overburden fissures in the mining of shallow thick coal seams
Sign Up to like & getrecommendations! Published in 2019 at "European Journal of Environmental and Civil Engineering"
DOI: 10.1080/19648189.2017.1327896
Abstract: Abstract The spatio-temporal distribution and gas conductivity of overburden fissures in the mining of shallow thick coal seams are investigated to understand the correlation between the dynamic growth of overburden fissures in the mining of… read more here.
Keywords: shallow thick; coal seams; thick coal; gas conductivity ... See more keywords
Mechanism and control of deformation in mining roadways with hard roofs in extra-thick coal seams
Sign Up to like & getrecommendations! Published in 2025 at "Frontiers in Materials"
DOI: 10.3389/fmats.2025.1713508
Abstract: The mining roadways for the exceptionally thick coal seams 3-5 at Tashan Colliery in the Datong Mining District faced the challenge of significant and uncontrollable surrounding rock deformation under hard roof strata conditions, posing a… read more here.
Keywords: deformation; roof; coal; thick coal ... See more keywords
In Situ Studies on the Characteristics of Strata Structures and Behaviors in Mining of a Thick Coal Seam with Hard Roofs
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DOI: 10.3390/en11092470
Abstract: The movements of overburden induced by mining a thick coal seam with a hard roof extend widely. The effects of breakages in the hard strata on the strata behaviors might vary with the overlying strata… read more here.
Keywords: coal seam; seam hard; thick coal; structure ... See more keywords
Elemental Geochemistry and Pb Isotopic Compositions of the Thick No. 7 Coal Seam in the Datun Mining Area, China
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DOI: 10.3390/min14080848
Abstract: Thick coal seams recorded abundant petrological, geochemical, and mineralogical information regarding their formation, which in turn can reflect the characteristics of the coal-forming environments, provenance attributes, paleoclimate, and so on. In order to explore the… read more here.
Keywords: mining area; coal; thick coal; datun mining ... See more keywords
Occurrence State and Genesis of Large Particle Marcasite in a Thick Coal Seam of the Zhundong Coalfield in Xinjiang
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DOI: 10.3390/min15080816
Abstract: The Junggar Basin contains a large amount of coal resources and is an important coal production base in China. The coal seam in Zhundong coalfield has a large single-layer thickness and high content of inertinite,… read more here.
Keywords: coal seam; sulphide minerals; coal; thick coal ... See more keywords