Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Yingyuan WEN"'
Publikováno v:
Meitan xuebao, Vol 49, Iss 4, Pp 1752-1770 (2024)
The rock burst frequently occurs in the roadways with top coal, and the roof disasters are particularly severe under dynamic stress in China. In order to explore the classification and instability mechanisms of anchoring structures in the roadways wi
Externí odkaz:
https://doaj.org/article/6f6cd17c6c0f45e8891c1cfbbe93c720
Publikováno v:
Applied Sciences, Vol 14, Iss 19, p 8585 (2024)
The occurrence of rock bursts due to penetrating faults are frequent in China, thereby limiting the safe production of coal mines. Based on the engineering background of a 501 working face in a TB coal mine, this paper investigates stress and energy
Externí odkaz:
https://doaj.org/article/14fa050edc4e485d995f6e0ea39de7c5
Publikováno v:
Geomatics, Natural Hazards & Risk, Vol 14, Iss 1 (2023)
AbstractWith the increase in coal mining depth, many rock bursts triggered by fold structures have been observed, but the disaster mechanism is not clear. This research aims at investigating the influence of upright fold structure(UFS) on rock burst
Externí odkaz:
https://doaj.org/article/e0c6a6fa72e44e6598b41b4a7c3104b5
Autor:
Gaoang Wang, Sitao Zhu, Xiufeng Zhang, Yingyuan Wen, Zhijie Zhu, Quanjie Zhu, Liangfu Xie, Jiajie Li, Yi Tan, Tao Yang, Yuanyuan Pu, Chun Zhu
Publikováno v:
Frontiers in Earth Science, Vol 11 (2023)
Thick and hard key stratum working faces are characterized by frequent mine tremors and significant ground tremors during mining which seriously threaten the safety production of the mine. With working face (4-5) 06 of Xinjiang Liuhuanggou Coal Mine
Externí odkaz:
https://doaj.org/article/6180d40bd79a4fc59a447d2cdca22115
Publikováno v:
Geomatics, Natural Hazards & Risk, Vol 13, Iss 1, Pp 1805-1830 (2022)
The variation of hard roof thickness is an essential contributor in triggering rock bursts during longwall mining. Case analysis and numerical modeling were used to study the stress and energy characteristics of the coal and rock mass and its fractur
Externí odkaz:
https://doaj.org/article/ffb53488243644a9b515e15528c4cb2d
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:
Geofluids, Vol 2022 (2022)
Water in coal pores can generate strong steam explosions when treated with microwave irradiation. In order to improve the sensitivity of coal reservoirs to microwaves, we used varying concentrations of NaCl on the pore solution, which further increas
Externí odkaz:
https://doaj.org/article/950e95cf7caf40e78a0b598facbbc8c4
Publikováno v:
Shock and Vibration, Vol 2021 (2021)
This paper introduces the innovative technique to release the bursting liability of coal seam via microwave irradiation. To verify the feasibility of this environment-friendly technique, a series of laboratory tests incorporating acoustic emission (A
Externí odkaz:
https://doaj.org/article/5a5bcffd2df04e25b297386ab67090f8
Publikováno v:
Minerals, Vol 11, Iss 12, p 1348 (2021)
Various geotechnical experiments have used gypsum-cemented analog geotechnical materials. However, this material needs a long curing time, and the target strength is not easy to control. Therefore, this research adopted microwave heating as the curin
Externí odkaz:
https://doaj.org/article/3ed0bddd96664c3d85a2c8d123319176
Publikováno v:
Advances in Materials Science and Engineering, Vol 2016 (2016)
The analogous simulation experiment is widely used in geotechnical and mining engineering. However, systematic errors derived from unified standard curing procedure have been underestimated to some extent. In this study, 140 gypsum-cemented similar m
Externí odkaz:
https://doaj.org/article/24f836d4ca8e4fb4ade1fc0d9db74751