Results 1 to 10 of about 12,324 (191)

Experimental study on the transporting and crushing effect of gas on coal powder during the develop stage of coal and gas outburst in roadway [PDF]

open access: yesScientific Reports, 2023
In recent years, coal and gas outburst disasters are still occurring and difficult to prevent, seriously endangering the safety of coal mine production.
Jie Cao   +3 more
doaj   +2 more sources

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

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   +2 more sources

Experimental Study on Coal and Gas Outburst Risk under Different Water Content Rates in Strong Outburst Coal Seams. [PDF]

open access: yesACS Omega, 2023
To investigate the alleviation potency of coal seam water infusion on coal and gas outburst, this paper focuses on the Qidong coal mine outburst coal seam, where outburst accidents have occurred many times, and obtains the impact of water content on outburst prediction parameters by studying the features of outburst parameters and gas desorption law ...
Hu T   +5 more
europepmc   +4 more sources

Experimental Study on Coal and Gas Outburst Risk in Strong Outburst Coal Under Different Moisture Content

open access: yesFrontiers in Earth Science, 2022
Coal and gas outburst is an extremely serious dynamic phenomenon involving the comprehensive action of many factors, and remains a major disaster that needs to be solved in coal mine production.
Zhuang Lu   +10 more
doaj   +2 more sources

Particle flow numerical simulation model for coal and gas outburst and its microscopic outburst mechanism description. [PDF]

open access: yesSci 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

Investigation of coal and gas outburst risk by microseismic monitoring. [PDF]

open access: yesPLoS One, 2019
In order to improve the monitoring and prediction of coal and gas outburst, this paper proposes a new method for dynamic regional prediction of coal and gas outburst using microseismic (MS) monitoring. The theoretical basis of this method is presented.
Wang A   +7 more
europepmc   +4 more sources

Coal and gas outburst prediction based on data augmentation and neuroevolution. [PDF]

open access: yesPLoS One
Coal and gas outburst (CGO) is a complicated natural disaster in underground coal mine production. In constructing smart mines, predicting CGO risks efficiently and accurately is necessary. This paper proposes a CGO risk prediction method based on data augmentation and a neuroevolution algorithm, denoted as ANEAT.
Shi W, Huang J, Yang G, Su S, Jiang S.
europepmc   +4 more sources

Assessment of coal and gas outburst by AHP-GT combined model

open access: yesMeikuang Anquan, 2022
In order to predict the risk of coal and gas outburst more effectively, five factors are considered, including coal seam gas pressure, initial gas release velocity, coal firmness coefficient, coal failure type and coal seam porosity.
XU Enyu, LI Xijian, XUE Feng
doaj   +1 more source

Experimental Study on Work of Adsorption Gas Expansion After Coal and Gas Outburst Excitation

open access: yesFrontiers in Earth Science, 2022
Coal and gas outburst is an extremely complex dynamic phenomenon of mine gas, which is mainly manifested in a very short time. A large amount of coal and rock are thrown out from the coal body to the mining space and accompanied by a large volume of high-
Yi Zhao   +5 more
doaj   +1 more source

Research on Temperature Variation during Coal and Gas Outbursts: Implications for Outburst Prediction in Coal Mines [PDF]

open access: yesSensors, 2020
Coal and gas outbursts are among the most severe disasters threatening the safety of coal mines around the world. They are dynamic phenomena characterized by large quantities of coal and gas ejected from working faces within a short time. Numerous researchers have conducted studies on outburst prediction, and a variety of indices have been developed to
Chaolin Zhang   +3 more
openaire   +3 more sources

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