Results 21 to 30 of about 3,109 (220)

Experiment Study of Outburst Pulverized Coal-Gas Two-Phase Flow and Characteristic Analysis of Outburst Wave

open access: yesGeofluids, 2021
Coal and gas outburst is still a major safety problem in the process of coal production in China. Correctly understanding of the migration law of outburst high gas and pulverized coal is an important basis for accurately predicting the occurrence time ...
Xusheng Zhao   +3 more
doaj   +1 more source

Elimination mechanism of coal and gas outburst based on geo-dynamic system with stress–damage–seepage interactions

open access: yesInternational 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

Study on early Warning System of Coal and Gas Outburst [PDF]

open access: hybridThe Open Electrical & Electronic Engineering Journal, 2013
Coal and gas outburst is an extremely complex and serious gas dynamic phenomenon. Therefore, building an early warning system based on computer system, safety monitoring systems of coal mines and local area network is a precondition for effectively preventing coal and gas outburst.
Xianglan Liu   +2 more
openalex   +2 more sources

A Gas Monitoring and Control System in a Coal and Gas Outburst Laboratory [PDF]

open access: yesJournal of Sensors, 2014
Coal and gas outburst is a phenomenon characterized by the ejection of gas and coal from the solid face of a mine. Physical minioutburst experiments are a very important tool for analyzing outbursts of coal and gas. However, few reports have focused on the safety problem produced by gas concentration or the role of gas spread during the physical ...
Wen Nie, Y. Liu, C. J. Li, J. Xu
openaire   +1 more source

Coal and gas outburst early-warning technology based on change of gas concentratio

open access: yesGong-kuang zidonghua, 2016
In order to realize real-time, accurate and advanced prediction of coal and gas outburst in heading face, a coal and gas outburst earlywarning method based on change of gas concentration was proposed.
XU Xuezhan, MENG Xiangrui, ZOU Yunlong
doaj   +1 more source

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   +1 more source

Mechanism and Classification of Coal and Gas Outbursts in China

open access: yesAdvances 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   +1 more source

A Testing Apparatus for Gas-Driven Coal and Gas Outbursts and its Application

open access: yesFrontiers 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
doaj   +1 more source

Research on coal and gas outburst collaborative prediction technology and its applicatio

open access: yesGong-kuang zidonghua, 2020
In view of problems that existing coal and gas outburst prediction technology is difficult to achieve omnidirectional continuous prediction in the field of time and space,has low utilization rate of anti-outburst prediction results and lag in the release
XU Xuezhan
doaj   +1 more source

Study of the solid–gas–stress coupling model and its application

open access: yesScientific Reports, 2023
Coal mines may change from non-outburst mines into coal and gas outburst mines with increasing mining depth. Therefore, scientific and rapid prediction of the coal seam outburst risk and effective prevention and control measures could ensure coal mine ...
Xianzhi Shi, Dazhao Song
doaj   +1 more source

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