Results 121 to 130 of about 10,633 (207)

Study on the Mechanism of Intense Strata Behavior and Control Technology for Goaf-Side Roadway in Extra-Thick Coal Seam

open access: yesApplied Sciences
With the depletion of shallow coal resources, deep extra-thick coal seam mining has become vital for energy security, yet fully mechanized top-coal caving (FMTC) goaf-side roadways face severe challenges of excessive advanced deformation and intense ...
Shuai Yan   +4 more
doaj   +1 more source

Post-mining management in a major French mining area – example of the Lorraine iron ore basin [PDF]

open access: yes, 2014
International audienceThe Lorraine iron ore basin, in north-eastern France near to the border with Luxemburg, extends over 1,700 km² in a highly urbanised region. Mining ceased in 1997.
Hadadou, Rafik   +3 more
core   +1 more source

Influence of goaf inerting on the “three zones” and study on fire prevention and extinguishing technology in ultra-width working face of extra-thick coal seam

open access: yesCase Studies in Thermal Engineering
Due to the thickness of the coal and the width of the working face in the extra-thick coal seam and ultra-width working face, the distribution of the oxidation zone in the goaf during mining is different from that of the conventional working face, which ...
Lei Li   +9 more
doaj   +1 more source

Delineation of geological problems for use in urban planning [PDF]

open access: yes
Activities of the University of Alabama in support of state and local planning commissions are reported. Demonstrations were given of the various types of remotely sensed images available from U-2, Skylab, and LANDSAT; and their uses and limitations were
Bloss, P.   +6 more
core   +1 more source

Study on the Overburden Failure Law of Extra-Thick Coal Seam Mining Under Extremely Thick Conglomerate Strata

open access: yesApplied Sciences
This study investigates the mining-induced overburden failure and the development law of the water-conducting fracture zone under key layer control during the extraction of an extra-thick coal seam (thickness ≥ 8 m) under extremely thick conglomerate ...
Sun Binyang, Hu Xiongwu, Fu Maoru
doaj   +1 more source

Competitive adsorption equilibria of CO2 and CH4 on a dry coal [PDF]

open access: yes, 2018
Gases like CO2 and CH4 are able to adsorb on the coal surface, but also to dissolve into its structure causing the coal to swell. In this work, the binary adsorption of CO2 and CH4 on a dry coal (Sulcis Coal Province, Italy) and its swelling behavior are
Mazzotti, Marco   +3 more
core  

Research on rock burst prevention and control technology of steep extra-thick coal seam

open access: yes
Abstract In order to study the prevention and control effect of the emergency relief measures of water injection before blasting on the sharp inclined ultra-thick coal seam, the south mining area of Wudong Coal Mine in Urumqi Mining area of China was taken as the research object. Based on the special geological conditions of the mine field, the
Kaihua Liang   +5 more
openaire   +1 more source

Requirements for the conceptual design of advanced underground coal extraction systems [PDF]

open access: yes
Conceptual design requirements are presented for underground coal mining systems having substantially improved performance in the areas of production cost and miner safety. Mandatory performance levels are also set for miner health, environmental impact,
Gangal, M. D., Lavin, M. L.
core   +1 more source

Home - About - Disclaimer - Privacy