Zobrazeno 1 - 10
of 164
pro vyhledávání: '"mining roadway"'
Publikováno v:
Meikuang Anquan, Vol 55, Iss 10, Pp 129-138 (2024)
For the problem that the potential risk of coal mine roadway is difficult to be quantified and predicted, the risk factors affecting the stability of roadway are screened and extracted. The fuzzy analytic hierarchy process (FAHP) risk evaluation mode
Externí odkaz:
https://doaj.org/article/466243b7dca846709cb939c1b106e90d
Publikováno v:
Gong-kuang zidonghua, Vol 50, Iss 8, Pp 44-51 (2024)
The surrounding rock of the repeated mining roadway is severely deformed and cannot be reused, and the repeated mining roadway has obvious overlapping extension features during the service period. In order to solve the above problems, this study take
Externí odkaz:
https://doaj.org/article/d3a2febc40a14d4aa432d6c763befe9a
Autor:
Shuangming WANG, Lang LIU, Mengbo ZHU, Baoning WEI, Dengdeng ZHUANG, Huisheng QU, Wei HE, Chengcheng SHAO, Lei XIA, Jing ZHOU
Publikováno v:
Meitan xuebao, Vol 49, Iss 8, Pp 3291-3315 (2024)
The situation of coal as the stabilizer guarantee the energy safety in China cannot be changed in the short term, and it will continue to face the problems of coal resource protection and the low utilization rate of coal-based solid waste. Through in
Externí odkaz:
https://doaj.org/article/89971838d0ff42c090deb34e8c108a2f
Process optimization and application of bolter miner for 'three-soft' thick coal seam mining roadway
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 8, Pp 1-10 (2024)
The overall strength of the surrounding rock of “three-soft” thick coal seam mining roadway is low, and the combination of rock structure generally changes greatly, resulting in obvious differences in the stability of hanging roof of driving face
Externí odkaz:
https://doaj.org/article/bf20c7c3048e4a3781b61cc0fb9a34bd
Publikováno v:
Geomechanics and Geophysics for Geo-Energy and Geo-Resources, Vol 10, Iss 1, Pp 1-19 (2024)
Abstract To address the surrounding rock control problems in high-stressed deep mining roadways, we used Suncun Coal Mine with maximum mining depth in China as the engineering background to analyze failure laws of surrounding rock of gob-side entry d
Externí odkaz:
https://doaj.org/article/73190d36f4d24448be7e935c45419f2d
Autor:
CHAI Jing, HAN Zhicheng, LEI Wulin, ZHANG Dingding, MA Chenyang, SUN Kai, WENG Mingyue, ZHANG Youzhi, DING Guoli, ZHENG Zhongyou, ZHANG Yin, HAN Gang
Publikováno v:
Meitan kexue jishu, Vol 51, Iss 1, Pp 146-156 (2023)
With the deepening of coal mining and the upsizing of mining equipment, the floor heave of the mining roadway has become an important problem that restricts the efficient and safe mining of the working face. It is of great significance to reveal the
Externí odkaz:
https://doaj.org/article/6536aa1dda6b455b87bfe101808fb466
Publikováno v:
Frontiers in Ecology and Evolution, Vol 11 (2023)
IntroductionSoft rock mining roadways are severely deformed and damaged during coal mining. Blindly increasing the support strength not only has little effect but also wastes material resources.MethodsMaintaining the original support parameters, mode
Externí odkaz:
https://doaj.org/article/a6db3f6151e0479db7c119e5b076a948
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Autor:
Feng Du, Ji Ma, Xiaofei Guo, Tianfeng Wang, Xiaohang Dong, Jiashuo Li, Shulei He, Dilinaer Nuerjuma
Publikováno v:
International Journal of Coal Science & Technology, Vol 9, Iss 1, Pp 1-17 (2022)
Abstract The rockburst dynamic disasters in the process of deep coal mining become more and more serious. Taking the rockburst occurred in the 23130 working face of Yuejin Coal Mine as the engineering background, we study the characteristics of minin
Externí odkaz:
https://doaj.org/article/bc2d9b74181d4a4f97721d6ef6452c26