Zobrazeno 1 - 10
of 121
pro vyhledávání: '"Dajun Yuan"'
Publikováno v:
Underground Space, Vol 20, Iss , Pp 46-68 (2025)
This study aims to develop a rational theoretical model for cutterhead-soil interaction. The cutterhead-soil interaction mechanism is divided into two components: the cutting action of the cutter on the soil and the extrusion of the cutterhead on the
Externí odkaz:
https://doaj.org/article/ab5cbdd742ab40b98cc0ccf50131cc3d
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 15, Iss 6, Pp 1491-1505 (2023)
This research explores the potential for the evaluation and prediction of earth pressure balance shield performance based on a gray system model. The research focuses on a shield tunnel excavated for Metro Line 2 in Dalian, China. Due to the large er
Externí odkaz:
https://doaj.org/article/47e011c43bfa4f4db8a920fce5b2110e
Publikováno v:
Urban Rail Transit, Vol 9, Iss 3, Pp 221-232 (2023)
Abstract Based on a cross-river tunnel of Wuhan Metro Line 8, we present a two-dimensional discrete element model for shield attitude adjustment considering the effect of overbreak cutters. The shield shell mechanics under the influence of over-excav
Externí odkaz:
https://doaj.org/article/0273eb36aef34bb08084571746e65cfa
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 15, Iss 2, Pp 467-476 (2023)
A multi-purpose prototype test system is developed to study the mechanical behavior of tunnel supporting structure, including a modular counterforce device, a powerful loading equipment, an advanced intelligent management system and an efficient nonc
Externí odkaz:
https://doaj.org/article/7f62ef526f144ce19e5df6013ad487a5
Publikováno v:
Symmetry, Vol 15, Iss 7, p 1412 (2023)
As subsea shield tunnels are becoming increasingly popular, especially in coastal or river cities, the complicated construction environment poses multiple challenges that need to be addressed to ensure their safety and reliable operation. This study
Externí odkaz:
https://doaj.org/article/5b82f535c25a40be9ce23496dc406fca
Publikováno v:
Sensors, Vol 22, Iss 24, p 9715 (2022)
Bolts, as the basic units of tunnel linings, are crucial to safe tunnel service. Caused by the moist and complex environment in the tunnel, corrosion becomes a significant defect of bolts. Computer vision technology is adopted because manual patrol i
Externí odkaz:
https://doaj.org/article/7eba72684f3a48bdb4d0ec4989235399
Publikováno v:
Applied Sciences, Vol 13, Iss 1, p 72 (2022)
The disc cutter is a key tool in shield machines that come into direct contact with rock while participating in the removal of rock. Therefore, the reasonable design of the geometric configuration of disc cutters greatly determines the tunnelling eff
Externí odkaz:
https://doaj.org/article/50423401798b4fc1a25a9d9e666d2a3f
Autor:
Xiaoyu Wang, Dajun Yuan
Publikováno v:
Applied Sciences, Vol 13, Iss 1, p 245 (2022)
As the urban underground space environment gets more complex, the cases of shield machines encountering and cutting through piles are becoming more common. The interaction between the cutter head and pile foundation directly affects the tunneling per
Externí odkaz:
https://doaj.org/article/c8a6406b0f8248aaa67755ab51dfaa9a
Publikováno v:
Applied Sciences, Vol 12, Iss 15, p 7929 (2022)
The Jinan Jiluo Road Crossing the Yellow River Tunnel North Extension Project will intersect the Queshan reservoir, which currently supplies 60% of the domestic water in Jinan City. During the excavation process of the large-diameter slurry type shie
Externí odkaz:
https://doaj.org/article/3978207a0df94aaa95e069b0c9ef813a
Publikováno v:
Applied Sciences, Vol 12, Iss 12, p 5802 (2022)
To investigate the ground deformation induced by the variation of excess/insufficient support pressure in water-rich sandy soil, a series of centrifuge tests in tunnels located at cover over diameter (C/D) ratios equal to 0.5, 1.0 and 1.5 were carrie
Externí odkaz:
https://doaj.org/article/c9cbd3bc95644e2fad1225fa5ec66756