Results 131 to 140 of about 18,203 (209)

The MRPP : a powerful operational regulatory tool to prevent and manage post-mining risks [PDF]

, 2005
International audienceEven if most French mining sites are definitively closed, potential risks remain above the abandoned exploitations. In addition to surface instability, some mining sites may be affected by dangerous gas emissions or by flooding ...
Didier, Christophe, Leloup, Jacques
core   +1 more source

Study on development height and permeability laws of water-conducting fracture zone in overlying strata of goaf

Meikuang Anquan
In order to construct an underground water reservoir for storing high-salinity water and achieve zero discharge through the treatment of highly mineralized mine water, it is necessary to accurately evaluate the permeability coefficient of the overlying ...
Peng ZHU, Xu LI, Yaoping CHEN, Dawei KUAI, Qiang GUO   +4 more
doaj   +1 more source

Numerical Studies of Advanced Methane Drainage Employing Underground Long-Reach Directional Drilling

Energies
This paper presents the procedures and results of the numerical modelling and simulations performed to analyse an innovative method of advanced methane drainage employing underground long-reach directional drilling (LRDD) technology.
Wiesław Szott, Małgorzata Słota-Valim, Piotr Ruciński, Krzysztof Miłek, Piotr Łętkowski   +4 more
doaj   +1 more source

Hydrochemical characteristics and component sources of water in underground reservoirs in the Daliuta Coal Mine

Meitian dizhi yu kantan
ObjectiveUnderground reservoirs in coal mines are capable of storing and purifying mine water. A deep understanding of the hydrochemical characteristics and formation mechanisms of water in underground reservoirs is identified as an important prerequisite for large-scale development of technologies for mine water treatment.
Haitao ZHANG, Binbin JIANG, Haiqin ZHANG, Peng LI, Min WU, Jingwei HAO, Yutian HU   +6 more
openaire   +1 more source

Experimental study of mechanical properties of artificial dam for coal mine underground reservoir under cyclic loading and unloading

Geomechanics and Geophysics for Geo-Energy and Geo-Resources
AbstractThis study investigates the stability of an artificial dam used in an underground reservoir in a coal mine under periodic weighting imposed by overlying rock strata. For this purpose, cyclic loading and unloading tests with different stress amplitudes were designed.
Xin Lyu, Ke Yang, Chaoshui Xu, Juejing Fang, Minke Duan, Zhainan Zhang   +5 more
openaire   +2 more sources

Gases emission monitoring in a post-mining context [PDF]

, 2005
International audienceClosed mines are often sources of dangerous gas emission. Flammable and/or toxic gases or deoxygenated air can be transmitted to the surface through existing aerodynamic links like abandoned shaft or galleries and fissures in rock ...
Besnard, Katia, Pokryszka, Zbigniew
core   +1 more source

Enrichment patterns and accumulation models of coalbed methane under complex geological conditions: A case study of the Xintian Coal Mine in western Guizhou Province, China

Meitian dizhi yu kantan
ObjectiveThe Xintian Coal Mine, a critical coal-producing mine in western Guizhou Province, faces high risks of coal and gas outbursts and the challenge of low underground coalbed methane (CBM) extraction efficiency, necessitating surface CBM extraction.
Shuai XU, Caifang WU, Xiaofei BIE, Guangsheng LI, Xiaojie FANG, Fangfang WANG, Yi CHENG, Peng ZHAO   +7 more
doaj   +1 more source

Numerical Simulation Study on The Ultimate Water Head of Artificial Dam in Coal Mine Underground Reservoir

Academic Journal of Science and Technology
In order to improve the problem of low utilization rate of groundwater in the process of coal mine production, some mining areas in northwest China use the goaf of the working face as a water storage space, and establish underground reservoirs to realize water retention mining. In order to solve the problem of the stability of the artificial dam of the
openaire   +1 more source

Return to Battleship Island [PDF]

, 2016
No abstract ...
Dixon, Deborah, Fearnley, Carina, Hassall, Lee, Lavery, Carl, Pendleton, Mark   +4 more
core  

Automation of the longwall mining system [PDF]

Cost effective, safe, and technologically sound applications of automation technology to underground coal mining were identified. The longwall analysis commenced with a general search for government and industry experience of mining automation technology.
Aster, R. W., Harris, J., High, J., Zimmerman, W.   +3 more
core   +1 more source