Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Yafei Qiao"'
Publikováno v:
Underground Space, Vol 17, Iss , Pp 60-81 (2024)
Contemporary demands necessitate the swift and accurate detection of cracks in critical infrastructures, including tunnels and pavements. This study proposed a transfer learning-based encoder-decoder method with visual explanations for infrastructure
Externí odkaz:
https://doaj.org/article/9b69b794911b4a60966eadeae2f1a603
Publikováno v:
Underground Space, Vol 16, Iss , Pp 239-260 (2024)
A circular shaft is often used to access a working well for deep underground space utilization. As the depth of underground space increases, the excavation depth of the shaft increases. In this study, the deformation characteristics of a circular sha
Externí odkaz:
https://doaj.org/article/5ad5e586fe564abfa0491f63cb874ee4
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 5, Pp 1615-1636 (2024)
Rock and geotechnical engineering investigations involve drilling holes in ground with or without retrieving soil and rock samples to construct the subsurface ground profile. On the basis of an actual soil nailing drilling for a slope stability proje
Externí odkaz:
https://doaj.org/article/af2d589dc06b4b74b2e1636c17ffefe0
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 15, Iss 5, Pp 1312-1353 (2023)
Rockburst is becoming a huge challenge for the utilization of deep underground space. Extensive efforts have been devoted to investigating the rockburst behavior and mechanism experimentally, theoretically, and numerically. The aim of this review is
Externí odkaz:
https://doaj.org/article/0c106734ee1949efb3f52e3051829abd
Publikováno v:
Taiyuan Ligong Daxue xuebao, Vol 54, Iss 2, Pp 241-246 (2023)
It is difficult to separate fluorene and phenanthene by conventional separation method owing to their similar properties. The reaction-separation coupling technique was adopted to solve the problem, in which fluorene is first converted into 9-fluoren
Externí odkaz:
https://doaj.org/article/2c00743d3cad4cefa3d20ea49bef659e
Publikováno v:
Underground Space, Vol 7, Iss 5, Pp 898-910 (2022)
The waterproofing capacity of segmental joints is an essential indicator for the long-term service performance of shield tunnels. The segmental joints with double gaskets have been adopted to improve the waterproof performance for certain tunnels wit
Externí odkaz:
https://doaj.org/article/9b82dcabf0ef4eefa7ea114503a48869
Publikováno v:
Underground Space, Vol 7, Iss 4, Pp 662-679 (2022)
This paper aims to clarify the mechanism of the longitudinal response of a tunnel under normal faulting via a comprehensive analysis of available experimental data and numerical simulations. Four 1 g condition model tests were reviewed and reanalysed
Externí odkaz:
https://doaj.org/article/662033b749ee43e8b7f3ddffb4be9482
Publikováno v:
Underground Space, Vol 6, Iss 4, Pp 455-468 (2021)
In this study, a deep excavation in an under-consolidated deposit in Zhuhai, China, was reported and investigated via plane strain finite element analysis (FEA). First, the project was simulated via FEA (under-consolidated deposit), and a reasonable
Externí odkaz:
https://doaj.org/article/50b6ad02c6714936a6f5ea9dde881a38
Mechanical Properties of the Shield Tail Brush and Its Pressure Distribution Acting upon the Segment
Publikováno v:
Applied Sciences, Vol 13, Iss 11, p 6451 (2023)
Shield tunnels are widely used in underground transportation. The shield tail brush is an important component of the shield machine, but also can exert an adverse influence on the segment as it can induce considerable and uneven pressure thereon. The
Externí odkaz:
https://doaj.org/article/9e8174e5ee8d47e38186c9452467b8aa
Publikováno v:
Taiyuan Ligong Daxue xuebao, Vol 52, Iss 2, Pp 171-176 (2021)
To realize fluorene oxidation to 9-fluorenone with high selectivity in a short time and highly efficient separation of 9-fluorenon from phenathrene, the effect of solvent and catalyst on the oxidation of fluorene to 9-fluorenone, and the type and dos
Externí odkaz:
https://doaj.org/article/11e06f91dca840dcb39612bac750ce7d