Zobrazeno 1 - 10
of 83
pro vyhledávání: '"Fangtian WANG"'
Publikováno v:
Meitan kexue jishu, Vol 52, Iss S1, Pp 238-248 (2024)
The gangue recognition technology is one of the key technologies in the intelligent construction of mines. To address the problem of low accuracy of the gangue recognition model caused by low illumination and high dust environment at the working face
Externí odkaz:
https://doaj.org/article/679529e84abc478d9d38c2ddaffcf2dc
Publikováno v:
Meitan kexue jishu, Vol 52, Iss S1, Pp 47-61 (2024)
Mine gas extraction has the dilemma of low extraction rate, short effective extraction cycle, and substandard gas pre-extraction concentration. In order to realize the precise pressure relief and permeability of high gas and low gas permeability coal
Externí odkaz:
https://doaj.org/article/bca6ef0a98274eb0bcd95484db4887f3
Publikováno v:
Meitan xuebao, Vol 49, Iss 3, Pp 1332-1344 (2024)
Coal pillars in soft and thick coal seam are often tall and have large exposed coal walls, and the coal quality is soft with some developed cracks, which can easily cause an instability of coal pillars and make roadway maintenance difficult. This pap
Externí odkaz:
https://doaj.org/article/0d8805ad090440799ed635f71b5971cf
Publikováno v:
Rock Mechanics Bulletin, Vol 3, Iss 2, Pp 100102- (2024)
Broken coal and rock (BCR) are an important component medium of the caving zone in the goaf (or gob), as well as the main filling material of fault fracture zone and collapse column. The compaction seepage characteristics of BCR directly affect the s
Externí odkaz:
https://doaj.org/article/50fa4e66da08449abfa6560aa778e76e
Publikováno v:
International Journal of Coal Science & Technology, Vol 10, Iss 1, Pp 1-15 (2023)
Highlights (1) This paper reviews the water weakening on rock strength and its influencing factors. (2) Various microscopic methods for studying the pore characterization and weakening mechanism of WRI are compared and analyzed. (3) We study the weak
Externí odkaz:
https://doaj.org/article/10319755bc7c4ff7bad78ed4761139ef
Autor:
Yu Chen, Jie Li, Huaizhan Li, Yandong Gao, Shijin Li, Si Chen, Guangli Guo, Fangtian Wang, Dongsheng Zhao, Kefei Zhang, Peiling Li, Kun Tan, Peijun Du
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 16, Pp 3611-3634 (2023)
Monitoring the surface deformation of filling coal mines regularly and understanding their spatiotemporal evolution characteristics for mining management and disaster warning is greatly significant. However, there is a lack of research on extracting
Externí odkaz:
https://doaj.org/article/6ca030007bd840f0b25de5722b7abf49
Publikováno v:
Meitan kexue jishu, Vol 50, Iss 12, Pp 128-135 (2022)
In order to study the damage characteristics of superhigh-wate consolidated body under triaxial stress state, uniaxial experiments of superhigh-water consolidated body under different curing time (1, 7, 14, 21, 28 d) were carried out. Uniaxial compre
Externí odkaz:
https://doaj.org/article/516bbd44d9414216a85f1c4be4939756
Publikováno v:
Lithosphere, Vol 2022, Iss Special 11 (2022)
AbstractThe stability of the entries of longwall panels is the key to ensure efficient and safe production of coal mines. In order to solve the common problems of floor heave of panel entry in western China, based on a case study, this paper studies
Externí odkaz:
https://doaj.org/article/d781642ae40b4deca2d2b1b8eb4a8e42
Publikováno v:
Lithosphere, Vol 2022, Iss Special 11 (2022)
AbstractIn order to understand the mechanism of some unconventional failures such as rockburst caused by deep rock excavation, the failure characteristics of burst-prone sandstone specimens under static and dynamic loads were studied by using the MTS
Externí odkaz:
https://doaj.org/article/33795a9bf1f64f4aa08ff11d13a9c26b
Publikováno v:
Geomatics, Natural Hazards & Risk, Vol 11, Iss 1, Pp 949-966 (2020)
Many dynamic disasters such as coal wall caving and roof falling have happened during longwall face crossing fault. Combined with the coal seam geological conditions in the 1302 longwall face AB coal mine, the paper comprehensively studies the overly
Externí odkaz:
https://doaj.org/article/ca73e5ddd0eb4cfa954fe47e4aa8de8b