Results 21 to 30 of about 69,126 (260)
Evaluation of coal seam floor water bursting in multi-aquifer Gequan coal mine, China
Scientific Reports, 2022 AbstractA water-bursting evaluation of the coal seam floor is critical to ensure safety of coal mine production. The vulnerability index method based on AHP is selected for this study’s evaluation method. Water pressure, measured specific yield, equivalent thickness of effective aquiclude, brittle rock thickness under mining pressure damage zone ...
Situ Lv +3 more
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Shock and Vibration, 2021 High in-situ stress and frequent dynamic disturbances caused by the mining process in deep coal mines can easily induce dynamic disasters such as coal burst.
Shuang Gong +3 more
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Special Issue: Rock Burst Disasters in Coal Mines
Energies, 2022 Rock bursts are often encountered in coal mines worldwide [...]
Yulong Chen +3 more
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Yantu gongcheng xuebao, 2022 In view of the present situation of frequent rock burst appearances of isolated coal body in coal pillar areas of high-stress roadways without obvious mining disturbance, taking the coal pillar of the high-stress thick coal seam in the seventh mining ...
WANG Gao-ang 1, ZHU Si-tao 1, JIANG Fu-xing 1, LI Shi-dong 2, LIU Jin-hai 3, ZHOU Tao 2, NING Ting-zhou 4, LI Huan 2, KONG Zhen 2
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A coal burst model based on roof vibration and coal slippage
IOP Conference Series: Earth and Environmental Science, 2020 Abstract Rock burst poses a serious threat to mining, and its mechanism still needs to be studied. Statistics show that more than 85% of rock bursts occur in mining roadways. The authors investigated the mechanism of rock burst in the roadways by creating a finite elastic long beam dynamic model in longwall mining based on the elastic ...
J Han, D Jia, C Cao, Z Zhu, Y Li
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Geofluids, 2022 In the Uxin Banner area of the Inner Mongolia Autonomous Region, mines that have experienced rock bursts have all been affected by the presence of confined water in the roof strata.
Yunhai Cheng +4 more
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Cutting-edge industrial technology of mining tool manufacturing [PDF]
, 2016 Purpose. To conduct a comparative economic analysis of cermet alloys regeneration technology, to identify the most “environmentally friendly” and cost-effective processing of solid alloys waste. Methods.
Gurenko, A, Naumenko, O, Savchenko, Iu
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The Status and Future of Flywheel Energy Storage [PDF]
, 2019 Flywheels, one of the earliest forms of energy storage, could play a significant role in the transformation of the electrical power system into one which is fully sustainable yet low cost.
Pullen, K. R.
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Evaluating the risk of coal bursts in underground coal mines
International Journal of Mining Science and Technology, 2016 Abstract Coal bursts involve the sudden, violent ejection of coal or rock into the mine workings. They are almost always accompanied by a loud noise, like an explosion, and ground vibration. Bursts are a particular hazard for miners because they typically occur without warning.
Christopher Mark, Michael Gauna
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A rapid cosmic-ray increase in BC 3372-3371 from ancient buried tree rings in China [PDF]
, 2017 Cosmic rays interact with the Earth's atmosphere to produce $^{14}$C, which can be absorbed by trees. Therefore, rapid increases of $^{14}$C in tree rings can be used to probe previous cosmic-ray events.
Cheng, K. S. +4 more
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