Results 131 to 140 of about 12,068 (222)
Meikuang AnquanWith the gradual depletion of shallow coal resources, coal mining in China gradually extends to the deep. With the increase of buried depth, the stress state will change and the type of stress field will also change, which makes the internal stress ...
Wei ZHAO +5 more
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Getting gas right: Australia’s energy challenge [PDF]
The global gas revolution is poised to significantly raise bills for Australian households and some gas-using businesses, but government should resist calls to protect domestic households and businesses from high gas prices.
Lucy Carter, Tony Wood
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Research on feasibility of double -roadway layout below coal pillar in shallow and close coal seam
Gong-kuang zidonghua, 2020 For the feasibility of double -roadway layout in hypogynous coal seam in A Coal Mine of Shendong mining area when working faces in shallow and close coal seam are synchronously mined, roadway deformation and plastic zone failure characteristics below an overburden 35 m wide coal pillar are researched by use of numerical simulation, physical model and ...
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IMPROVING THE TECHNOLOGY OF OPENING SHALLOW COAL SEAMS USING THE OPEN-UNDERGROUND METHOD [PDF]
Vestnik of Kuzbass State Technical University, 2021 Tatyana A. Tyuleneva, Roman I. Shishkov
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Ostracods of the Paratethyan Neogene Kılıç and Yalakdere Formations near Yalova (İzmit Province, Turkey) [PDF]
, 2005 Matzke-Karasz, Renate, Witt, Wolfgang
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Energy Science & EngineeringGas outbursts pose a significant threat in the mining of deep low‐permeability coal seams. As mining depth increases, there is a rise in coal and gas dynamic disasters, rendering the gas outburst prevention technology from shallow mining areas unsuitable
Jiadi Yin +3 more
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The Vermilion River basin : an inventory of the region's resources [PDF]
, 2000 published or submitted for ...
Post, Susan L.
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Strata behavior in longwall mining at greater depths [PDF]
, 2012 This thesis presents the overview of problems of underground coal mining at greater depth and reserve position of coal in India. Various strata control issues relate to stress distribution around the longwall panels at depths approaching 900m in ...
Singh, Deepanshu
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Exploration and treatment technology for shallow buried coal seam roadway passing through ditch
Meikuang Anquan, 2021 In order to solve the problems encountered in the passage of thin-bedrock shallow coal seam roadways, three roadways in the 4-2 coal seam of Zhangjiamao Coal Mine were taken as an example, through drilling engineering, water pressure test, core identification, drilling video, hydrochemical test and other exploration techniques, the structure of ...
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Treatment Technology of Roof Watering in Ditch Driving Roadway of Shallow Coal Seam
Meikuang Anquan, 2020 To study the treatment problem of the roof watering of the roadway during the ditch driving of the shallow coal seam, the topography and geological conditions at the ditch of the 4-2 coal centralized auxiliary transport roadway in Zhangjiamao Coal Mine are analyzed.
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