Zobrazeno 1 - 10
of 23
pro vyhledávání: '"isolated working face"'
Publikováno v:
Frontiers in Earth Science, Vol 12 (2024)
With the increasing demand for coal resources and the unreasonable arrangement of subsequent working faces, mining activities in isolated working faces are more likely to induce coal burst accidents. In this study, the minimum distance principle is u
Externí odkaz:
https://doaj.org/article/96cb36cf602c4d719b7fd26332f9fcc7
Publikováno v:
Meikuang Anquan, Vol 55, Iss 2, Pp 147-158 (2024)
To solve the strong dynamic pressure problem faced by the roadways under deep island working face conditions, the three types of overhanging roof in the lateral mining area of the working face, overhanging roof in the side of the mining area of the w
Externí odkaz:
https://doaj.org/article/9fdd9b6ccc304ba0a640ba2dc5da6d4f
Publikováno v:
Meikuang Anquan, Vol 53, Iss 7, Pp 201-207 (2022)
To study the deformation and fracture laws of the main roof in three-side annular island working face, the MZ201 working face of a coal mine in Henan Province was considered as the research background, and a main roof breaking mechanics model was con
Externí odkaz:
https://doaj.org/article/66dd2a5834684113997b08a8ec3b105c
Publikováno v:
Meikuang Anquan, Vol 53, Iss 5, Pp 50-58 (2022)
This paper takes Jimei 23101 isolated working face as an example, uses mechanical model analysis, multiple empirical formula calculations and numerical simulation methods to analyze the development and penetration of overlying rock fissures before an
Externí odkaz:
https://doaj.org/article/caba7b32dbfe4768a817b7239fb3de72
Publikováno v:
矿业科学学报, Vol 5, Iss 1, Pp 67-75 (2020)
Aiming at the serious damage caused by the stress concentration in the isolated working face for a long time in the underground transportation roadway, the mining treatment of the isolated working face is carried out to reduce its influence on the st
Externí odkaz:
https://doaj.org/article/a7a8df0c24c443e3bbd1df03d0b61a49
Publikováno v:
Energies, Vol 16, Iss 6, p 2839 (2023)
Solutions for the maintenance of safety in an isolated working face has not been well achieved; this is attributed to its unique overburden structure and the strong mining-induced stress during the advancement. This paper is devoted to filling this r
Externí odkaz:
https://doaj.org/article/9589a55f3be84d12b86ba12e83faf5b7
Publikováno v:
Gong-kuang zidonghua, Vol 45, Iss 2, Pp 41-46 (2019)
In order to decrease the influence of advancing abutment pressure on water-releasing borehole around working face during mining process, it is necessary to research advancing distance of sealing hole of water-releasing borehole in floor. An engineeri
Externí odkaz:
https://doaj.org/article/8cc107d079b844bebff72d5cbea5c096
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