Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Zhibiao GUO"'
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 6, Pp 14-28 (2024)
Aiming at the problem that roof deformation of cross fault roof cutting and pressure relief self-formed roadway is large and difficult to support, the mechanism of roof deformation of self-formed roadway in cross fault roof cutting and pressure-relie
Externí odkaz:
https://doaj.org/article/f1060919fcf74942bcddd5db911b28a0
Publikováno v:
CSEE Journal of Power and Energy Systems, Vol PP, Iss 99, Pp 1-11 (2024)
As an important part of the smart grid (SG), Vehicle-to-Grid (V2G) has significantly advanced the development of the grid. However, the open nature of V2G system itself and the deployment of charging piles (CPs) increase the difficulty of terminal co
Externí odkaz:
https://doaj.org/article/b4bd557a164d49699e57516f149b7bd0
Publikováno v:
Energy Science & Engineering, Vol 7, Iss 3, Pp 710-720 (2019)
Abstract The changes associated with the cutting roof and release pressure mining method in the three zones that are susceptible to spontaneous combustion in the goaf with “Y” type ventilation system were studied. For the investigated underground
Externí odkaz:
https://doaj.org/article/388a0e43041d4a2b943b8325c9d3f16a
Publikováno v:
International Journal of Coal Science & Technology, Vol 6, Iss 3, Pp 408-418 (2019)
Abstract The crushed rocks are used as a filling material in mined-out areas of underground mining. Compared with the man-made filling materials, the crushed rocks exhibit higher compressibility and lower stability, which may result in instability of
Externí odkaz:
https://doaj.org/article/d10b5600b2944299a23d8688808d3a60
Publikováno v:
Advances in Civil Engineering, Vol 2021 (2021)
The Minxian tunnel is a key engineering of the Weiyuan-Wudu expressway that is excavated in layered jointed carbonaceous slate rock mass. During the construction process, the surrounding rocks of the tunnel encountered serious large deformations and
Externí odkaz:
https://doaj.org/article/9a3044b376fb4fb38e366343a8f97e01
Publikováno v:
Geofluids, Vol 2021 (2021)
In this study, the deformation characteristics and mechanical properties of coal and rock mass in the S2N5 working face of the Xiaokang coal mine are analyzed to address the problem of large deformation of soft rocks with high in situ stress surround
Externí odkaz:
https://doaj.org/article/881871634cef4fbe9ab20577f67db7d8
Publikováno v:
Advances in Civil Engineering, Vol 2020 (2020)
During the excavation of the Minxian tunnel, problems of large deformations of surrounding rocks and failure of support structures appeared frequently, which caused serious influences on construction safety and costs of the tunnel. Based on laborator
Externí odkaz:
https://doaj.org/article/b1be87fc65fc4bffbd9aa5786ab40d3c
Publikováno v:
Advances in Materials Science and Engineering, Vol 2020 (2020)
The stress concentration of gob-side entry surrounding rock is a hot topic in coal mining. In this paper, through theoretical analysis and numerical simulation, the pressure relief mechanism of the gob-side entry retaining by roof cutting and pressur
Externí odkaz:
https://doaj.org/article/dcd0b4417ff143ce81da46cc403781fd
Publikováno v:
Tehnički Vjesnik, Vol 25, Iss 5, Pp 1447-1456 (2018)
The effect of conventional bolt support is not ideal due to the large deformation character of soft rock. As an innovative bolt, constant resistance large deformation (CRLD) bolt has been successfully applied to swelling soft rock engineering, but th
Externí odkaz:
https://doaj.org/article/c6b997f4922742c19c7b0adf3d72edb4
Publikováno v:
Shock and Vibration, Vol 2019 (2019)
In order to increase the mining rate of underground coal resources, an innovative nonpillar underground coal mining approach (fracturing roofs to maintain entry (FRME)) has been widely applied in China. The effect of roof fracturing determines whethe
Externí odkaz:
https://doaj.org/article/5511d64a1c184d8db1c707f5530f51a9