Zobrazeno 1 - 10
of 18
pro vyhledávání: '"DUAN Changrui"'
Publikováno v:
矿业科学学报, Vol 9, Iss 3, Pp 446-454 (2024)
This study aims to address existing problems of complex stress conditions and difficulties in retaining roadway so as to achieve long-term stability of roadway surrounding rock in gob-side entry in thin coal seam. Specifically, we investigated the 43
Externí odkaz:
https://doaj.org/article/e525fa465d3c4cb1aa2a889e1919c586
Publikováno v:
Gong-kuang zidonghua, Vol 48, Iss 11, Pp 101-109 (2022)
The deformation and failure mechanism of surrounding rock and the control measures under the condition of long-time high superimposed stress are the keys to gob-side entry retaining support technology in thick coal seam with soft bottom. The existing
Externí odkaz:
https://doaj.org/article/41e365acd5eb42afb651dc6b25bcf683
Publikováno v:
Gong-kuang zidonghua, Vol 46, Iss 12, Pp 64-69 (2020)
There are many influencing factors and complex conditions in deep soft rock roadway support. The theoretical research is still in the exploratory stage. Moreover, the method of relying on improving the strength of support materials and the use of gro
Externí odkaz:
https://doaj.org/article/0b6c254b9762468980824bddf091675d
Publikováno v:
Gong-kuang zidonghua, Vol 44, Iss 2, Pp 43-50 (2018)
Theoretical research status of mechanism of coal and gas outburst was summarized. Typical examples of similar materials of gas-bearing coal and simulation experiment device of coal and gas outburst were analyzed. Deficiency of the research of mechani
Externí odkaz:
https://doaj.org/article/7838037e884d4817b4cc7f320513d28f
Publikováno v:
Gong-kuang zidonghua, Vol 44, Iss 1, Pp 26-30 (2018)
In order to study influence of adsorption pressure and grain size of coal sample on coal gas desorption, the No.3 coal in Sihe Coal Mine was selected as samples, and variety characteristics of gas desorption amount and desorption speed of coal sample
Externí odkaz:
https://doaj.org/article/043fb2b2c76a438ca34867b0ad7f86c0
Publikováno v:
In Journal of Sustainable Mining 2017 16(2):47-54
Publikováno v:
Geotechnical and Geological Engineering. 36:2725-2733
The zonal disintegration phenomena in deep rock mass will appear with the increase of underground engineering depth which is widely different from shallow cavern. In order to reveal the formation process and production mechanism of zonal disintegrati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aab08d44098f900f256034f0b9503383
https://doi.org/10.1007/s10706-018-0494-y
https://doi.org/10.1007/s10706-018-0494-y
Publikováno v:
Journal of Sustainable Mining, Vol 16, Iss 2, Pp 47-54 (2017)
Currently, methane gas disasters in underground coal mines are a major problem which seriously threatens safe mining. This study employed soundless chemical demolition for fracturing coal seams with low permeability. Additionally, the fracturing theo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::51167614f2abe4fca328a9935803a541
http://www.sciencedirect.com/science/article/pii/S2300396017300526
http://www.sciencedirect.com/science/article/pii/S2300396017300526
Akademický článek
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Publikováno v:
IOP Conference Series: Earth and Environmental Science. 199:022038
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08a94bf79aef305769c98354384275fd
https://doi.org/10.1088/1755-1315/199/2/022038
https://doi.org/10.1088/1755-1315/199/2/022038