Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Wengang Du"'
Autor:
Bo Wang, Enke Hou, Liang Ma, Zaibin Liu, Tao Fan, Zewen Gong, Yaoquan Gao, Wengang Du, Qiang Liu, Bingzhen Ma
Publikováno v:
Energies, Vol 17, Iss 8, p 1941 (2024)
Horizontal wells within the roof are an effective method to develop gas in broken and soft coal seams, and layer-penetrating fracturing is a key engineering method for the stimulating of horizontal wells within the roof of a coal seam. To understand
Externí odkaz:
https://doaj.org/article/959356785e1540bdad504ae8b9d3d074
Publikováno v:
Frontiers in Earth Science, Vol 11 (2023)
The thickness of top coal is the main factor affecting the stability of the large cross section open-off cut under the goaf. The 1-2 lower 203 cross section open-off cut of the Huojitu Coal Mine was used as the background to investigate the top coal
Externí odkaz:
https://doaj.org/article/d7a64e4216784d3086706295f075c8cb
Autor:
Jing Chai, Yongliang Liu, Shigang Gao, Jianfeng Yang, Dingding Zhang, Wengang Du, Chenyang Ma, Zhicheng Han
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-14 (2022)
Abstract The reserved thickness of top coal has an important influence on the stability of a large section open-off cut under gob in the thick seams slicing mining. The destabilization extremum conditions of the open-off cut top coal were derived fro
Externí odkaz:
https://doaj.org/article/06ec85ca76c844ff8b63f0cae7d28e31
Autor:
Jing Chai, Yibo Ouyang, Jinxuan Liu, Dingding Zhang, Wengang Du, Jianfeng Yang, Yongliang Liu, Zhe Ma
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-14 (2022)
Abstract To overcome the limitation of the virtual extensometer method in measuring the crack opening displacement (COD) in the process of complex multi-crack propagation of rock, the measurement error of Digital Image Correlation (DIC) local deforma
Externí odkaz:
https://doaj.org/article/5c27af435bc54472b8363de70071ebc1
Publikováno v:
Sensors, Vol 22, Iss 13, p 5009 (2022)
The monitoring of mine pressure, division of vertical zoning of the overburden, discrimination of key stratum structure of the overburden and monitoring of advanced abutment pressure are still the main research problems in the field of coal mining. T
Externí odkaz:
https://doaj.org/article/0cd05433e2684244866197122e1ea994
Publikováno v:
Shock and Vibration, Vol 2021 (2021)
The impact ground pressure in coal mining is closely related to the fault structure, and the fault activation pattern is different when the working face advances along the upper and lower plates of the fault, respectively. In this paper, the F16 posi
Externí odkaz:
https://doaj.org/article/8ddf4a83902a4fdca5bed8e195ad03cd
Publikováno v:
Advances in Civil Engineering, Vol 2020 (2020)
The damage and degradation are the main influence factors of the instability of rock mass engineering. In this paper, the damage and deformation characteristics of the rock-like samples are investigated under the uniaxial compression test, and the ad
Externí odkaz:
https://doaj.org/article/6ab9d0b8a023493e8b1d2c5f075696ae
Autor:
Kexin Song, Wengang Du, Xiaona Ma, Yangjun Chen, Yixin Sun, Tao Zhang, Wei Huang, Zhihua Feng
Publikováno v:
Marine pollution bulletin. 185
Microplastics (MPs) in fish have attracted attention recently, for their ecological and food safety risks. However, knowledge gaps still exist regarding MPs in fugu, a special poisonous but precious seafood, especially that accumulated in its tissues
Publikováno v:
Advances in Civil Engineering, Vol 2020 (2020)
The damage and degradation are the main influence factors of the instability of rock mass engineering. In this paper, the damage and deformation characteristics of the rock-like samples are investigated under the uniaxial compression test, and the ad
Autor:
Jing Chai, Yibo Ouyang, Jinxuan Liu, Dingding Zhang, Wengang Du, Jianfeng Yang, Yongliang Liu, Zhe Ma
Publikováno v:
Scientific reports. 12(1)
To overcome the limitation of the virtual extensometer method in measuring the crack opening displacement (COD) in the process of complex multi-crack propagation of rock, the measurement error of Digital Image Correlation (DIC) local deformation is t