Results 11 to 20 of about 7,021 (250)
Assessment of coal and gas outburst by AHP-GT combined model
Meikuang 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
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Study on causes and prevention and control measures of coal and gas outburst in Chensilou Coal Mine
Meikuang Anquan, 2021 For the problem of coal and gas outburst in Chensilou Coal Mine, based on gas geology and tectonophysics theory, the cause of “4·10” coal and gas outburst was discussed from geological factors and engineering factors by using field investigation and ...
WANG Wei, CHEN Peihong, LIU Decheng
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The Coordinated Mining Technology of Coal and Gas in Outburst Coal Seams
Shock and VibrationWith 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 +4 more
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Geofluids, 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
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Energy principle of simulation experiments on coal and gas outburst [PDF]
Meitan xuebao, 2023 Coal and gas outburst is an extremely destructive gas dynamic disaster in mines. Since such dynamic disasters are usually difficult to observe directly, physical similarity simulation of coal and gas outburst has become an important method for collecting
Yuanping CHENG, Yang LEI, Sijie YANG
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Research Status and Prospect of Coal and Gas Outburst Prevention and Control by Hydraulic Technology
Meikuang Anquan, 2020 Coal seam pressure relief and permeability increase is an effective means to prevent coal and gas outburst, coal and rock mass structure transformation is the core problem of coal seam pressure relief and permeability increase, hydraulic technology is ...
CAO Yaolin
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Study on the impact force evolution law of coal and gas outburst under high ground stress [PDF]
Meitan kexue jishu, 2023 With the increase of mining depth and intensity, the dynamic disaster of coal and gas outburst was frequent. The disaster-causing mechanism of impact force has become the main direction of current research.
Jupeng TANG +4 more
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Coal and gas outburst early-warning technology based on change of gas concentratio
Gong-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 earlywarning method based on change of gas concentration was proposed.
XU Xuezhan, MENG Xiangrui, ZOU Yunlong
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Simulation and control of coal and gas outburst induced by dynamic and static loads [PDF]
Meikuang AnquanIn order to study the effects of multi factor coupling on micro-cracks, stress changes, outburst velocity, and outburst distance during coal and gas outbursts, including geostress, gas pressure, and dynamic disturbances, based on the particle method, we ...
Pu LI +4 more
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Risk prediction of coal and gas outburst
Gong-kuang zidonghua, 2022 In order to solve the problems of low accuracy and slow response speed of existing support vector machine (SVM)-based coal and gas outburst prediction methods, a risk prediction method of coal and gas outburst based on improved grey wolf optimizer (IGWO) optimized SVM is proposed. The influence degree of each influencing factor on coal and gas outburst
LI Yan, NAN Xinyuan, LIN Wanke
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