Results 21 to 30 of about 12,296 (207)
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
doaj +1 more source
PHYSICAL & CHEMICAL PROCESES FOR COAL DESTRUCTION IN UNDERGROUND GAS GENERATOR [PDF]
, 2018 Estimate the material and thermal balance for providing the chemical reactions in underground gasgenn according to physical spreads of their ...
DYCHKOVSKYI, Roman +7 more
core +3 more sources
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
doaj +1 more source
Energy Action Mechanism of Coal and Gas Outburst Induced by Rockburst
Shock 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
Research progress on coal mine laser methane sensor [PDF]
, 2019 This paper discusses the research progress of low-power technology of laser methane sensors for coal mine. On the basis of environment of coal mines, such as ultra-long-distance transmission and high stability, a series of studies have been carried out ...
Grattan, K. T. V. +10 more
core +1 more source
International 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 of the solid–gas–stress coupling model and its application
Scientific 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
Energy Science & Engineering, 2020 Coal and gas outburst is a potentially fatal risk during the mining of gassy coal seams, which seriously threatens the safe mining of collieries. To understand the outburst mechanism and evolution rules, a new apparatus (LSTT) was developed to conduct ...
Bo Zhao +5 more
doaj +1 more source
Research on coal and gas outburst collaborative prediction technology and its applicatio
Gong-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
Mechanism and Classification of Coal and Gas Outbursts in China
Advances 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