Results 101 to 110 of about 7,021 (250)

Study on Deformation Law of Crossing Layer Drilling Superimposed Floor Roadway

open access: yesEnergy Science &Engineering, Volume 14, Issue 6, Page 2752-2771, June 2026.
Based on deformation law of crossing layer drilling superimposed floor roadway, low dip angle drilling is particularly susceptible to complications such as borehole blockage and collapse. ABSTRACT Floor extraction roadway crossing layer drilling is a pivotal strategy for gas control in areas prone to coal and gas outbursts.
Xiao Liu   +9 more
wiley   +1 more source

A review on coal and gas outburst prediction based on machine learning [PDF]

open access: yes
The safety in the coal-producing mines in China is continuously improving, but coal and gas outburst accidents still occur. The prediction of coal and gas outbursts allows the scientific application of outburst prevention measures, which can ensure the ...
Sheng XUE   +4 more
core   +1 more source

Conjecture about mechanism of butterfly-shape coal and gas outburst in excavation roadway

open access: yes矿业科学学报, 2017
Referring to roadway butterfly shape rock burst mechanism and nonlinear dynamic system theory, a conjecture about butterfly-shape coal and gas outburst mechanism in excavation roadway has been made, In this conjecture, the mechanical essence of coal and ...
Ma Nianjie   +5 more
doaj  

Characteristics and Interlayer Slip Structure Control of Coal and Gas Outburst in Baijiao Coal Mine

open access: yesEngineering Geology and Geotechnics: Building for the Future, Proceedings of the Conference EUROENGEO 2024
The paper expounds the characteristics of coal and gas outburst in Baijiao Coal Mine, discusses the formation, classification and influences on coal and gas outburst of interlayer-slip structures with examples. It points out that coal and gas outburst in
Wen-Qi Sun   +4 more
semanticscholar   +1 more source

Experimental Study on Adsorption Pore Structure and Gas Migration of Coal Reservoir Using Low-Field Nuclear Magnetic Resonance

open access: yesAdvances in Civil Engineering, 2020
For the quantitative recognition and characterization of the flow characteristics of polymorphism coalbed gas in tectonic coal, experiments on pore morphology, pore diameter distribution, and methane adsorption law in outburst tectonic coal were carried ...
Jiazhuo Li   +7 more
doaj   +1 more source

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

open access: yes
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
core   +1 more source

Analysis of outburst instability tendency of coal containing methane based on energy theory

open access: yes, 2022
In order to analyze the influence of unsteady diffusion characteristics of tectonic coal on energy instability, the steady and unsteady gas diffusion models were used to establish the functional relationship between the initial gas diffusion coefficient ...
BEI Taibiao   +7 more
core   +1 more source

Coal and gas outburst monitoring system based on WSN [PDF]

open access: yes, 2010
Based on small-scale and low-cost devices, Wireless sensor networks (WSN) achieves processing, storing, sensing and communicating. It can be applied in the physical dimensions of monitoring environment real-time monitoring, sensing and collecting.
Qinhua Chen   +3 more
core   +1 more source

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

open access: yesMeitan 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   +5 more
doaj   +1 more source

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