Results 71 to 80 of about 1,327 (178)

Influence law and control mechanism of coal seam permeability on coal and gas outburst

Meitan xuebao
Coal and gas outburst is a destructive gas dynamic disaster in coal mines, which seriously threatens the safety of coal mine production. Coal permeability is an important parameter that comprehensively reflects the characteristics of coal seams. The coal
Chaolin ZHANG, Mingliang LIU, Enyuan WANG, Peizhong WANG, Qiaozhen JIANG, Wei ZENG   +5 more
doaj   +1 more source

Prevention and Control of Coal and Gas Outburst by Directional Hydraulic Fracturing through Seams and Its Application. [PDF]

ACS Omega, 2023
Li X, Zhou W, Hao S, Wu T, Zhang J.
europepmc   +1 more source

Study on influence of gas content of coal and gas outburst

IOP Conference Series: Materials Science and Engineering, 2017
In order to study the influence of gas content on the strength of coal and gas outburst, a set of device for simulating coal and gas outburst is improved by adding flowmeter and gas pressure sensors. The simulation experiments of coal and gas outburst were carried out with gas content of 7.5m3/t, 8.0m3/t, 8.5m3/t and 9.0m3/t respectively.
openaire   +1 more source

Changes in pore pressure and temperature during coal and gas outburst stimulated by mining-induced stress

Meitan xuebao
The phenomenon of coal and gas outburst, triggered by factors including mining-induced stress, manifests as coal seam rupture and rapid gas expulsion. Elucidating the changes in stress, pore pressure, and temperature during this process holds paramount ...
Jianguo ZHANG, Man WANG, Dongming ZHANG, Beichen YU, Yujie WANG   +4 more
doaj   +1 more source

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

Sci Rep, 2023
Ren L, Tang J, Pan Y, Zhang X, Yu H.
europepmc   +1 more source

Evolution process and instability mechanism of coal and gas outburst induced by rock cross-cut coal uncovering

Meitan kexue jishu
Coal and gas outburst (referred to as outburst) is a complex dynamic disaster phenomenon in the process of coal mining, which seriously threatens the safety production of mines, and the average intensity of coal outburst induced by rock cross-cut coal ...
Chaolin ZHANG, Qiaozhen JIANG, Yong KANG, Yuexia CHEN, Enyuan WANG, Enlai ZHAO, Quanlin LIU   +6 more
doaj   +1 more source

Multi-physical field parameter response in the whole process of coal and gas outburst under deep high stress

Meikuang Anquan
Based on the thermo-fluid-solid coupling law of coal and gas outburst in deep mining, a numerical model of coal and gas outburst is established, and the response of multi-physical parameters in the whole process of coal and gas outburst under high stress
Qiang ZHANG, Jun NIAN, Bo ZHAO, Wei ZHANG   +3 more
doaj   +1 more source

Discussion on the Main Control Effect of Geological Structures on Coal and Gas Outburst. [PDF]

ACS Omega, 2023
Yan J, Feng X, Guo Y, Jia T, Tan Z.
europepmc   +1 more source

Risk Prediction of Coal and Gas Outburst in Deep Coal Mines Based on the SAPSO-ELM Algorithm. [PDF]

Int J Environ Res Public Health, 2022
Yang L, Fang X, Wang X, Li S, Zhu J.
europepmc   +1 more source

The Coordinated Mining Technology of Coal and Gas in Outburst Coal Seams

Shock and Vibration
With the increase of mining depth, the gas management problem in coal and gas outburst mine is more prominent. At the same time, gas is used as a clean resource to mine together with coal which is to realize the simultaneous extraction of coal and gas more practical significance.
Chaowen Hu, Jianjun Wang, Feng Zhang, Bing Hu, Jinshan Zhang   +4 more
openaire   +2 more sources