Zobrazeno 1 - 10
of 279
pro vyhledávání: '"Zhe Xiang"'
Autor:
Xiang-shan Yuan, Zhe Xiang, Jian-bo Jiang, Fang Yuan, Mu-tian Zhang, Kai-ying Zhang, Zhao-yi Chen, Wei-min Qu, Wen-sheng Li, Zhi-li Huang
Publikováno v:
Cell Discovery, Vol 10, Iss 1, Pp 1-4 (2024)
Externí odkaz:
https://doaj.org/article/d9fdc26440104f2d8f37e4f77b0d133f
Publikováno v:
Case Studies in Construction Materials, Vol 20, Iss , Pp e03166- (2024)
The combination of nanocolloidal silica and aluminate cement is a potential technical approach to solve the problem of mudstone grouting, but there is a lack of high-performance admixtures to improve early strength and gel time. The effects of three
Externí odkaz:
https://doaj.org/article/38f839c49b55442ca3f472f296369039
Publikováno v:
Journal of Materials Research and Technology, Vol 26, Iss , Pp 3726-3743 (2023)
Micro-pore grouting consolidation constitutes a pivotal technical solution for addressing the issue of water-related weakening in mudstone. Given the engineering challenges such as the sub-optimal injectability of cement slurry materials into mudston
Externí odkaz:
https://doaj.org/article/26de0d83fabb46ee8ff3a6d9e64cdf64
Publikováno v:
International Journal of Mining Science and Technology, Vol 32, Iss 5, Pp 1009-1019 (2022)
It’s a universal engineering problem to seal micro-cracks of low-permeability argillaceous rock mass by grouting in the fields of civil engineering and mining. This paper achieved the grouting sealing of low- permeability artificial rocks with the
Externí odkaz:
https://doaj.org/article/3bdf32e319be4faaa62e0b3cef1585fd
Publikováno v:
Applied Sciences, Vol 13, Iss 7, p 4442 (2023)
The surrounding rock structure of the crossing-seam roadway is poor and is susceptible to anchorage failure phenomena, such as top plate sinking and convergence deformation under high ground stress. These issues can cause significant deformation of t
Externí odkaz:
https://doaj.org/article/10c85edca7974c4da7b5e05bd9e3eed6
Publikováno v:
Shock and Vibration, Vol 2021 (2021)
The purpose of this paper is to study the crack initiation, propagation, and coalescence of the sandy mudstone sample with two sets of prefabricated cross-flaws under uniaxial compression. This study is different from previous studies on single or mu
Externí odkaz:
https://doaj.org/article/cc7b5e2c1aa944e6bc7c948aa46bf02e
Publikováno v:
Shock and Vibration, Vol 2021 (2021)
Roadways in thick coal seams are widely distributed in China. However, due to the relatively developed cracks and brittleness of coal, the support failure of thick-coal-seam roadways frequently occurs. Therefore, the study of bolt failure characteris
Externí odkaz:
https://doaj.org/article/711773b288904489ad72a0f3dfed8c6e
Publikováno v:
Applied Sciences, Vol 11, Iss 9, p 4125 (2021)
The higher strength of a hard roof leads to higher coal pressure during coal mining, especially under extra-thick coal seam conditions. This study addresses the hard roof control problem for extra-thick coal seams using the air return roadway 4106 (A
Externí odkaz:
https://doaj.org/article/4c4b9e91d7e54f87b0c72edc4d4a822c
Publikováno v:
Applied Sciences, Vol 11, Iss 1, p 462 (2021)
To study the damage and destruction behavior of small coal pillars in coal mine roadway driving along gobs under long-term in-situ stress and multiple engineering disturbances, an unconfined compression experiment under a discontinuous cyclic load wa
Externí odkaz:
https://doaj.org/article/c3fd5cf261eb46059b6c06f334751812
Publikováno v:
TransNav: International Journal on Marine Navigation and Safety of Sea Transportation, Vol 10, Iss 2, Pp 205-211 (2016)
With the wide use of AIS system in the world, especially in ports and the waters with heavy traffic, AIS message loss may be related to environmental conditions, obstacle, limitation of VHF technology and AIS network overload, thereby reducing the AI
Externí odkaz:
https://doaj.org/article/c64d51f00fc84604ae8f9d208f9967e7