Results 51 to 60 of about 7,021 (250)
International Journal of Coal Science & Technology, 2022 As mines become deeper, the potential for coal and gas outbursts in deep rock cross-cut coal uncovering is enhanced. The outburst precursors are unclear, which restricts the effectiveness and reliability of warning systems.
Jupeng Tang +4 more
semanticscholar +1 more source
, 2019 Coal and gas outburst is a complex geo-dynamic disaster induced by a coal seam uncovered by crossdrift, threatens the safety and efficient production of coal mines seriously. For this, Hongshan coal mine was selected as engineering background to simulate
Beifang, WANG +4 more
core +1 more source
Meikuang AnquanIn order to reveal the evolution law of coal and gas outburst gas-solid particle flow, an analysis method combining field statistical data with numerical simulation data was proposed based on the discrete element numerical simulation method.
Yanlei GUO +5 more
doaj +1 more source
International Journal of Coal Science & TechnologyAccurate prediction of coal and gas outburst (CGO) hazards is paramount in gas disaster prevention and control. This paper endeavors to overcome the constraints posed by traditional prediction indexes when dealing with CGO incidents under low gas ...
Ying-Jie Zhao +7 more
semanticscholar +1 more source
Mechanical criterion for coal and gas outburst: a perspective from multiphysics coupling
International Journal of Coal Science & Technology, 2021 Although a series of hypotheses have been proposed, the mechanism underlying coal and gas outburst remains unclear. Given the low-index outbursts encountered in mining practice, we attempt to explore this mechanism using a multiphysics coupling model ...
Ting Liu, B. Lin, Xuehai Fu, Ang Liu
semanticscholar +1 more source
Shock and Vibration, 2019 With mining depths increasing, coal and gas outburst disasters are becoming more and more serious and complicated, which directly restricts the production efficiency of coal mines.
Linchao Dai +6 more
doaj +1 more source
Study of the multi-index coupling forecasting model of coal and gas outburst and its application
工程科学学报, 2018 Coal and gas outburst seriously threatens the safety of underground coal mining. With the increase in coal mining depth, the geological conditions of coal mines become complicated, which adversely affects the safety of coal mining production.
ZHANG You-yi +2 more
doaj +1 more source
Study on Early Warning System of Coal and Gas Outburst [PDF]
The 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.
Xiang Lan Liu +2 more
openaire +1 more source
Recent advances on mechanism and prevention technology of coal and gas outburst disasters in China
Meitan kexue jishuCoal and gas outburst is a kind of mine dynamic disaster that occurs in underground coal mines, often causing mass casualties and seriously restricting the safe and efficient production of coal mines.
Chaojun FAN +7 more
doaj +1 more source
Dynamic cracking properties and generating conditions of coal under rapid gas release
Deep Underground Science and Engineering, EarlyView.Gas release tests revealed that crack initiation and propagation are jointly controlled by initial crack length, residual strength, and gas release velocity. A new outburst risk coefficient was thus developed from a fracture mechanics perspective, offering a novel predictive approach.
Bing Zhang +6 more
wiley +1 more source