Zobrazeno 1 - 10
of 1 429
pro vyhledávání: '"coal and gas outburst"'
Autor:
Zhiming YAN, Xinsheng ZHANG, Junsheng ZHANG, Baige YANG, Yunxing CAO, Shumin LI, Runping DONG
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 8, Pp 63-73 (2024)
Coal mine disasters caused by coal and gas outbursts are severe in China. Currently, static and dynamic technologies are mainly used to address the difficult gas control problem. The gas control mechanism of the composite technology of cavity making
Externí odkaz:
https://doaj.org/article/e25db2ca03214e2591530ad8e4b5ecfd
Study on characteristics of coal and gas outburst in Panjiang Mining Area based on Apriori algorithm
Publikováno v:
Meikuang Anquan, Vol 55, Iss 7, Pp 1-8 (2024)
In order to reveal the occurrence law of coal and gas outburst disaster in Panjiang Mining area and improve the targeted work of gas prevention and control, the gas geological parameters of 37 coal and gas outburst accident points in Panjiang Mining
Externí odkaz:
https://doaj.org/article/08c14917183544499458bcbe908ad45a
Autor:
Xiaofei Liu, Zinan Du, Enyuan Wang, Ao Jiang, He Tian, Kaiyuan Wang, Yinghao Xiong, Heng Wang
Publikováno v:
Geomechanics and Geophysics for Geo-Energy and Geo-Resources, Vol 10, Iss 1, Pp 1-29 (2024)
Abstract Fluctuations in gas emission or concentration at working face represent primary indicators of impending coal and gas outbursts, making them essential for monitoring processes. However, the direct use of original signals for predictive purpos
Externí odkaz:
https://doaj.org/article/fa16d07c01ec432e8a9b19491a00cf3f
Publikováno v:
International Journal of Coal Science & Technology, Vol 11, Iss 1, Pp 1-16 (2024)
Abstract To explore the static pressure dynamic disaster mechanism of coal-and-gas outburst (CGO) fluid, the self-developed multi-field coupling large-scale physical simulation test system of coal mine dynamic disaster was used to carry out gas outbu
Externí odkaz:
https://doaj.org/article/a9f95ffd54774b9c9eda110f0419404c
Autor:
Yongqian LIU, Zhonggang HUO, Hongyan LI, Longyong SHU, Zhongxue SUN, Dong WANG, Xue LIU, Xingwang SHI
Publikováno v:
Meitan xuebao, Vol 49, Iss S1, Pp 327-339 (2024)
A physical mechanics simulation experiment is one of the important technical methods to study the inoculation mechanism and development laws of coal and gas outburst. A new type of coal and gas outburst simulation system has been developed, aiming at
Externí odkaz:
https://doaj.org/article/90e147741df24b0481ef58eb4422db16
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 7, Pp 126-138 (2024)
In China, due to the influence of geological tectonics, the phenomenon of primary structural coal and tectonic coal stratification exists in many coal seams. The existence of tectonic coal leads to a sharp increase in the risk of composite coal seam
Externí odkaz:
https://doaj.org/article/b8dce05173774125a19a48588313a0e8
Publikováno v:
Meitan xuebao, Vol 49, Iss 6, Pp 2691-2710 (2024)
To explore the influence of confining pressure on the macro-meso mechanical characteristics of gas hydrate bearing coal (GHBC) under different boundary conditions, the biaxial discrete element tests were carried out subjected to the confining pressur
Externí odkaz:
https://doaj.org/article/d390e3c584344924b9956e91b949acee
Publikováno v:
Meikuang Anquan, Vol 55, Iss 5, Pp 51-60 (2024)
In 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. The deve
Externí odkaz:
https://doaj.org/article/5f656f622bbd4aca837a14ae0de4de23
Autor:
XUE Weichao
Publikováno v:
Gong-kuang zidonghua, Vol 50, Iss 4, Pp 121-127 (2024)
The initial velocity of gas emission is one of the important indicators for identifying the risk of coal and gas outburst. The existing research has not organically combined the testing of the initial gas emission rate index of coal with the testing
Externí odkaz:
https://doaj.org/article/4a2fde1ae4b24df2a328dc3f346c172e
Publikováno v:
Meitan xuebao, Vol 49, Iss 3, Pp 1414-1431 (2024)
In order to explore the effect of hydrate formation and loading-unloading condition on the strain and permeability of gas hydrate bearing coal, the authors first measured the permeability of coal before and after gas hydrate formation, by using the t
Externí odkaz:
https://doaj.org/article/1af43b4d2e3d4bfd93782c1f7230a8e2