Results 11 to 20 of about 2,853,080 (287)

Energy Action Mechanism of Coal and Gas Outburst Induced by Rockburst

open access: yesShock and Vibration, 2021
The essence of both rockburst and coal and gas outburst lies in fast energy release. In order to explore the energy action mechanism of coal and gas outburst induced by rockburst in rockburst and coal and gas outburst combined mines, the split Hopkinson ...
Wenqing Zhang   +3 more
doaj   +2 more sources

Research status and development trend of mechanism and simulation test of coal and gas outburst

open access: yesGong-kuang zidonghua, 2018
Theoretical research status of mechanism of coal and gas outburst was summarized. Typical examples of similar materials of gas-bearing coal and simulation experiment device of coal and gas outburst were analyzed.
LIU Yejiao   +5 more
doaj   +2 more sources

Typical characteristics of deep coal seams with high outburst risk, outburst inducing mechanism and prevention measures [PDF]

open access: yesMeitan xuebao
Coal 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   +3 more sources

Macroscopic fracture mechanism of coal body and evolution characteristics analysis of impact force in deep coal and gas outburst

open access: yesScientific Reports, 2023
With the increase of mining depth and intensity, coal and gas outburst dynamic disasters occur frequently. In order to deeply study the macroscopic fracture mechanism of coal body and evolution characteristics analysis of impact force, taking the ...
Lingran Ren   +4 more
doaj   +2 more sources

Failure determination method regarding local outburst prevention measures for coal and gas outburst

open access: yesMeitan xuebao
Discharge holes is the primary measure concerning local outburst prevention, however, in recent years, there have been numerous instances of accidents in which outburst still occurred, after drilling outburst prevention holes and taking local outburst ...
Chengwu LI, Zhen QIAO
doaj   +2 more sources

Analysis of the Occurrence Mechanism for Coal and Gas Outburst Based on Multiple Discriminant Indices

open access: yesShock and Vibration, 2019
In order to reveal the occurrence mechanism of coal and gas outburst and optimize the measures to prevent the disaster, a coal mine in Henan Province was undertaken as the research background.
Hai Rong   +3 more
doaj   +2 more sources

Research progress of coal and gas outburst mechanism based on geological structure

open access: yesMeikuang Anquan, 2022
Aiming at the problem of coal and gas outburst in the process of coal mining in China, this paper first summarizes the research progress of coal and gas outburst mechanism, and points out that the research on outburst mechanism of tectonic belt is of ...
ZHAO Junli, WANG Wenyuan, YANG Wei
doaj   +1 more source

Effects of confinement and vaccination on an epidemic outburst: A statistical mechanics approach [PDF]

open access: yesPhysical Review E, 2021
This work describes a simple agent model for the spread of an epidemic outburst, with special emphasis on mobility and geographical considerations, which we characterize via statistical mechanics and numerical simulations. As the mobility is decreased, a percolation phase transition is found separating a free-propagation phase in which the outburst ...
Óscar Toledano   +4 more
openaire   +4 more sources

Experimental investigations of stress‐gas pressure evolution rules of coal and gas outburst: A case study in Dingji coal mine, China

open access: yesEnergy Science & Engineering, 2020
Coal and gas outburst is a potentially fatal risk during the mining of gassy coal seams, which seriously threatens the safe mining of collieries. To understand the outburst mechanism and evolution rules, a new apparatus (LSTT) was developed to conduct ...
Bo Zhao   +5 more
doaj   +1 more source

Gas pressure evolution characteristics of deep true triaxial coal and gas outburst based on acoustic emission monitoring

open access: yesScientific Reports, 2022
Coal and gas outburst is one of the geological disasters that seriously threaten the safety of coal mines production. In recent years, with the increase of mining depth, outbursts become frequent.
Xin Zhang   +3 more
doaj   +1 more source

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