Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Jinwen Bai"'
Publikováno v:
Meitan xuebao, Vol 49, Iss 5, Pp 2270-2282 (2024)
High voltage electrical pulse fracturing technology based on electrohydraulic effect is a new type of rock mass fracturing technology. This technique is characterized by its safety, high efficiency, environmental friendliness and controllable energy
Externí odkaz:
https://doaj.org/article/4a0ceafd2a684e84999749fc208794f6
Autor:
Jun Guo, Wenbo Huang, Guorui Feng, Jinwen Bai, Lirong Li, Zi Wang, Luyang Yu, Xiaoze Wen, Jie Zhang, Wenming Feng
Publikováno v:
International Journal of Mining Science and Technology, Vol 34, Iss 4, Pp 491-505 (2024)
The relationship between support and surrounding rock is of great significance to the control of surrounding rock in mining process. In view of the fact that most of the existing numerical simulation methods construct virtual elements and stress serv
Externí odkaz:
https://doaj.org/article/69f093586f1b457cbfdb5e3879499402
Publikováno v:
Minerals, Vol 13, Iss 7, p 852 (2023)
Mine seismic events are an inevitable dynamic phenomenon occurring in deep mines. A scientific and rational method is needed to evaluate and understand mine seismicity and its induced disasters. In the Ordos mining area of North China, multiple group
Externí odkaz:
https://doaj.org/article/cad6451f52594a8b8d4b4d8a100da85d
Publikováno v:
Lithosphere, Vol 2022, Iss Special 11 (2022)
AbstractFailure of residual coal pillars under dynamic load disturbances can induce goaf collapse, ground subsidence, or coalbursts. Encasing the residual coal pillar in mortar is an effective method for reinforcing the residual coal pillar. However,
Externí odkaz:
https://doaj.org/article/84edfb1628d442569661e5a0f0b18b3d
Publikováno v:
Lithosphere, Vol 2021, Iss Special 7 (2022)
AbstractPreexisting discontinuities and the water affect the fracture evolution process as well as the rock stability the most extensively. To ensure operational safety, the effects of water on the mechanical properties of fissured rock masses must b
Externí odkaz:
https://doaj.org/article/6473385762014277990d195aafe2eb8e
Autor:
Cheng Song, Guangming Cao, Jinwen Bai, Shanyong Wang, Guorui Feng, Xudong Shi, Kai Wang, Chun Zhu
Publikováno v:
Materials, Vol 16, Iss 7, p 2690 (2023)
The fracturing behaviors of serial coal pillars is significant for understanding their failure mechanism. To reveal this, the bearing stress, acoustic emission, electrical resistivity, local strain, force chain distribution, and cracks evolution of s
Externí odkaz:
https://doaj.org/article/3ff6767dea734a2290ba2ed94c18687c
Publikováno v:
Energy Science & Engineering, Vol 8, Iss 10, Pp 3502-3513 (2020)
Abstract Due to the existence of abandoned roadways in the thick coal seam, the ground pressure would increase greatly due to the roof advanced breaking when the working face passed through the affected area of abandoned roadways. In order to solve t
Externí odkaz:
https://doaj.org/article/3b03066d62874604ba9c7a789bbc4a07
Autor:
Jun Guo, Luyang Yu, Zhijie Wen, Guorui Feng, Jinwen Bai, Xiaoze Wen, Tingye Qi, Ruipeng Qian, Linjun Zhu, Xingchen Guo, Xincheng Mi
Publikováno v:
Materials, Vol 15, Iss 19, p 6546 (2022)
In underground engineering, shear failure is a common failure type in coal-rock mass under medium and low strain-rate disturbance loads. Analyzing the shear failure mechanical properties of coal-rock mass under dynamic normal load is significant. In
Externí odkaz:
https://doaj.org/article/0bc01aa98d254db9afeab034797c4c69
Autor:
Jun Guo, Xincheng Mi, Guorui Feng, Tingye Qi, Jinwen Bai, Xiaoze Wen, Ruipeng Qian, Linjun Zhu, Xingchen Guo, Luyang Yu
Publikováno v:
Materials, Vol 15, Iss 19, p 6634 (2022)
In order to study the weakening mechanism and mechanical behaviors of hard lamprophyre of Carboniferous Permian coal-bearing strata in China’s mining area, lamprophyre samples were subjected to static rock dissolution experiments with pH values of
Externí odkaz:
https://doaj.org/article/a061b4df72be4669ae5886fbf64d3de6
Autor:
Jun Guo, Guo-rui Feng, Ting-ye Qi, Pengfei Wang, Jian Yang, Zhen Li, Jinwen Bai, Xianjie Du, Zehua Wang
Publikováno v:
Shock and Vibration, Vol 2018 (2018)
The uniaxial cyclic loading tests have been conducted to study the mechanical behavior of dry and water saturated igneous rock with acoustic emission (AE) monitoring. The igneous rock samples are dried, naturally immersed, and boiled to get specimens
Externí odkaz:
https://doaj.org/article/6ce3e790382744fcab0d4aac30d227d2