Results 1 to 10 of about 40,082 (176)
Particle flow numerical simulation model for coal and gas outburst and its microscopic outburst mechanism description. [PDF]
Sci Rep, 2023 Abstract The finite difference model and particle flow model were constructed to reproduce the process of coal and gas outburst in front of the tunnel. The reliability of the particle flow model was verified by studying the internal stress, gas pressure, and related parameters of gas and coal two-phase flow.
Jiao H, Song W.
europepmc +4 more sources
Mechanism and Classification of Coal and Gas Outbursts in China [PDF]
Advances in Civil Engineering, 2021 Coal and gas outburst is a kind of complex dynamic disaster with short duration and strong explosiveness, and the modes and strength of the outburst are determined by the in situ stress, gas pressure, and physical and mechanical properties of the coal ...
Qi Zhang +4 more
doaj +3 more sources
Failure Mechanism of Gas-Bearing Coal during Outburst and a New Method for Outburst Prediction [PDF]
ACS Omega, 2021 Coal and gas outbursts are among the most serious disasters affecting the safety of coal mines. Gas is an important factor in these types of disasters. To analyze the characteristics of the damage caused by gas to the coal body during the sudden release of the gas process, a self-developed high-pressure gas release cause coal particle ejection ...
Chengwu Li +3 more
doaj +3 more sources
Research on the Disaster-Inducing Mechanism of Coal-Gas Outburst [PDF]
Advances in Civil Engineering, 2020 In China, coal-gas outburst is seriously affecting safety of the coal mine. To improve the safety status of underground coal mining, this work investigated the evolution process and occurrence mechanism of coal-gas outburst under the coupling action of ...
Fengxiang Nie, Honglei Wang, Liming Qiu
doaj +2 more sources
Mechanism of dilatation catastrophe of coal and gas outburst
Meitan xuebaoCoal and gas outburst mechanism, as a century old global problem, has entered a bottleneck period in its prevention and control at this stage. Faced with the continuous occurrence of outburst accidents, it is still difficult to answer numerous scientific
Chaojie WANG, Xiaowei LI
doaj +2 more sources
Meitan xuebaoCoal mining in China has gradually entered deep levels. With the continuous increase in mining depth, the outburst risk of coal seam has significantly increased, with both the frequency and intensity of outbursts rising noticeably, posing huge challenges
Baiquan LIN, Wei YANG, Tong LIU
doaj +2 more sources
Construction and application of comprehensive early warning system for coal and gas outburst in Xinjing Coal Mine [PDF]
E3S Web of Conferences, 2021 In order to further strengthen the prevention and control of coal and gas outburst in Xinjing Coal Mine, the online comprehensive analysis and early warning index system and rules of coal and gas outburst suitable for Xinjing Coal Mine were studied ...
Zou Yunlong
doaj +1 more source
Variable quiescent state for the neutron-star X-ray transient SAX J1750.8-2900: not such a hot neutron star after all? [PDF]
, 2017 We monitored the neutron star low-mass X-ray binary SAX J1750.8-2900 after the end of its 2015/2016 outburst using the X-ray Telescope (XRT) aboard Swift to detect possible post-outburst 'rebrightenings', similar to those seen after its 2008 outburst. We
Parikh, Aastha S., Wijnands, Rudy
core +8 more sources
Research progress on the two-phase flow migration law of coal and gas outburst
Meitan kexue jishu, 2023 Coal and gas outburst is an extremely complex dynamic phenomenon in coal mines. It is mainly manifested as gas suffocation, pulverized coal impact and burial, which seriously threatens the safety production of coal mines.
Chaolin ZHANG +4 more
doaj +1 more source
International Journal of Coal Science & Technology, 2023 Coal and gas outburst is a complex dynamic disaster during coal underground mining. Revealing the disaster mechanism is of great significance for accurate prediction and prevention of coal and gas outburst. The geo-dynamic system of coal and gas outburst
Lingjin Xu +6 more
doaj +1 more source