Results 41 to 50 of about 9,082,756 (299)
Controlling effect of tectonic stress field on coal and gas outburst
Meitan xuebao, 2023 To investigate the controlling effect of tectonic stress field on coal and gas outburst, the gas geology, tectonophysics and rock mechanics methods were applied to analyze the influences of tectonic stress field on tectonic coal, in-situ stress and coal ...
Deyong GUO +3 more
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Meitan xuebao, 2023 As the disaster-causing characteristics of coal and gas outburst and the mechanism of induced mine airflow disaster are not clear, the facilities such as air door and self-rescue system are often arranged on site according to miner’s experience, thus it ...
Xuelin YANG +6 more
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Investigation on the Fragmentation and Outburst Mechanism of Coal Sample with Pore Gas Using CDEM
, 2023 In this paper, using the continuum discontinuum element method (CDEM), the fragmentation and outburst process of coal specimen are simulated, and the main factors affecting coal breaking and outburst are explored.
朱心广 +4 more
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A Testing Apparatus for Gas-Driven Coal and Gas Outbursts and its Application
Frontiers in Earth Science, 2022 In this study, a multi-physics coal and gas outburst experimental apparatus is developed to allow investigating the gas-driven mechanism behind the disaster caused by coal and gas outbursts in tectonic regions. The apparatus can simulate the coal and gas
Yunlong Zou +4 more
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Prediction of coal and gas outburst based on catastrophe progression method
Gong-kuang zidonghua, 2015 In view of problem that inner mechanism of coal and gas outburst was very complex and it was difficult to establish an appropriate multivariate nonlinear prediction model, prediction method of coal and gas outburst based on catastrophe progression method
SHEN Zhiwei, WANG Enyuan, NIU Yue
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Possible Mechanisms for Cometary Outbursts [PDF]
International Astronomical Union Colloquium, 1991 Abstract.A cometary outburst is an unexpected flare-up in the brightness of a comet, with the brightness normally increasing by 2 to 3 magnitudes, but on occasion by up to 5. This outburst is superimposed on the general change in brightness that is related to the comet’s heliocentric and geocentric distance, spin phase, spin axis orientation and ...
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Risk prediction of coal and gas outburst
, 2022 In order to solve the problems of low accuracy and slow response speed of existing support vector machine (SVM)-based coal and gas outburst prediction methods, a risk prediction method of coal and gas outburst based on improved grey wolf optimizer (IGWO)
LIN Wanke, LI Yan, NAN Xinyuan
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65. On the mechanism of solar outbursts [PDF]
Symposium - International Astronomical Union, 1957 Today it is taken for granted that the solar outbursts are produced by plasma oscillations of coronal matter, excited by a corpuscular radiation originating in the inner corona (Pawsey and Smerd, 1953) [1]. A certain component of this corpuscular radiation is obviously identical with that generating geomagnetic storms.
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Formation of layered fracture and outburst during gas hydrate dissociation
, 2011 Hydrate dissociation in marine sediments may cause large hazards. Two types of new hazard phenomena, outburst and layered fracture, are observed in laboratory experiments and the initiation mechanism is discussed.
鲁晓兵 +3 more
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Energies, 2020 Factors leading to coal and gas outbursts are complicated, and the accuracy of predicting outbursts remains difficult to achieve. Therefore, coal and gas outburst risk are still a scientific challenge in the fields of mining, geology, safe engineering ...
Hongtao Liu, Linfeng Guo, Xidong Zhao
semanticscholar +1 more source