Zobrazeno 1 - 10
of 49
pro vyhledávání: '"island working face"'
Autor:
Zhu Haoyu, Lai Xingping, Qiao Hao, Shan Pengfei, Wang Wenlin, Yang Wenhua, Wu Longquan, Jia Chong
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-15 (2024)
Abstract Based on the background of ZF2822 island working face in Xiagou Coal Mine, the characteristics of overburden fracture structure and surrounding rock control technology of island working face are explored by means of theoretical analysis, num
Externí odkaz:
https://doaj.org/article/9e25f85cf1eb4b1ea1e6e4666aa53aed
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-10 (2024)
Abstract This study investigates the deformation and damage characteristics of the surrounding rock along the top return mining roadway of an isolated island working face at different stages and reveals its damage mechanism and evolution law. Utilizi
Externí odkaz:
https://doaj.org/article/026ddbc5025a4a519fb7265c53a950c9
Autor:
Runzhi LI
Publikováno v:
Meikuang Anquan, Vol 55, Iss 3, Pp 199-208 (2024)
During the mining process of deep coal mining faces, they are often affected by strong mining dynamic pressure, resulting in strong mining pressure and significant deformation and damage of the surrounding rock of the roadway. Especially for isolated
Externí odkaz:
https://doaj.org/article/5e9495c72d1d423cbaeb7b42aab749c7
Publikováno v:
Meikuang Anquan, Vol 55, Iss 3, Pp 139-146 (2024)
Under the influence of unreasonable geological conditions, mining layout and excavation connection, island working face will be set up in the layout of working face, which seriously affects the safe mining of the mine. In order to solve the problem o
Externí odkaz:
https://doaj.org/article/63869d246b694591848e12aaebe7469e
Publikováno v:
Meikuang Anquan, Vol 54, Iss 4, Pp 111-118 (2023)
Taking No.1310 working face of Xiaoyun Coal Mine as the engineering background, the initial breakage and instability position of the suspension roof was determined by calculation, the large amount of bending strain energy released was analyzed when t
Externí odkaz:
https://doaj.org/article/ee190100014048c49a8b26d2505a3788
Publikováno v:
Gong-kuang zidonghua, Vol 49, Iss 1, Pp 73-79 (2023)
It is easy to get stuck and collapse in the borehole of high stress and broken soft coal seam in the isolated island working face. This leads to great difficulty in borehole formation and poor gas extraction effect. In order to solve this problem, th
Externí odkaz:
https://doaj.org/article/7a401036f76c47c1a038e492663a45d8
Publikováno v:
Applied Sciences, Vol 14, Iss 5, p 1961 (2024)
A high static load state significantly increases the risk of rock burst occurrences on the island working face, posing a significant threat to the safety of coal mine production. This paper focused on the engineering background of the 8204-2 working
Externí odkaz:
https://doaj.org/article/e682aa80f3cf49b9bf2b338438718315
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