Results 51 to 60 of about 13,974 (295)

Investigation of feature contribution to shield tunneling-induced settlement using Shapley additive explanations method

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2022
Accurate prediction of shield tunneling-induced settlement is a complex problem that requires consideration of many influential parameters. Recent studies reveal that machine learning (ML) algorithms can predict the settlement caused by tunneling ...
K.K. Pabodha M. Kannangara   +3 more
doaj   +1 more source

Slurry infiltration tests for slurry shield tunnelling in saturated sand [PDF]

open access: yes, 2016
Tunnelling in saturated sand will cause excess pore pressures in the sand. This was the case during the construction of all tunnels in the Netherlands. This excess pore pressure influences the stability of the tunnel face.
Bezuijen, Adam, XU, T
core   +1 more source

Incoherent Pair Tunneling as a Probe of the Cuprate Pseudogap

open access: yes, 1998
We argue that incoherent pair tunneling in a cuprate superconductor junction with an optimally doped superconducting and an underdoped normal lead can be used to detect the presence of pairing correlations in the pseudogap phase of the underdoped lead ...
A. G. Loeser   +35 more
core   +1 more source

TBM pressure models: observations, theory and practice [PDF]

open access: yes, 2015
Mechanized tunnelling in soft ground has evolved significantly over the last 20 years. However, the interaction between the tunnel boring machine (TBM) and the ground is often understood through idealized concepts, focused mostly on the machine actions ...
Bezuijen, Adam   +1 more
core   +1 more source

A Functional 2D Carbon Allotrope Combining Nanoporous Graphene and Biphenylene Segments

open access: yesAdvanced Materials, EarlyView.
The synthesis of a novel nanoporous graphene (NPG) is reported with biphenylene segments via thermal fusion of 12‐armchair porous graphene nanoribbons grown on gold surfaces. Characterization using STM, AFM, and DFT reveals low‐defect semiconducting behaviour and tunable band gaps.
Paula Angulo‐Portugal   +14 more
wiley   +1 more source

Analysis of Shield Tunneling Parameters and Research on Prediction Model of Tunneling Excavation Speed in Volcanic Ash Strata of Jakarta–Bandung High-Speed Railway Project

open access: yesApplied Sciences
Insufficient investigations have been conducted on the analysis of shield tunneling parameters and the prediction of the tunneling excavation speed in formations composed of volcanic ash strata.
Xiaomin Fan   +5 more
doaj   +1 more source

Numerical Investigation of Slurry Fracturing during Shield Tunneling under a Reservoir

open access: yesApplied Sciences, 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.
Bingyu Han   +3 more
doaj   +1 more source

Analysis of Shear Stagger Deformation of Existing Shield Tunnel below Induced by Quasirectangular Shield Tunneling

open access: yesGeofluids, 2023
To use urban underground space more efficiently is a research hotspot of urban underground development. Compared with conventional circular tunnels, quasirectangular tunnels have the characteristics of larger space utilization and higher economic benefits, gradually used in urban rail engineering in recent years.
Kun Zhang   +4 more
openaire   +2 more sources

Primary thermometry triad at 6 mK in mesoscopic circuits

open access: yes, 2016
Quantum physics emerge and develop as temperature is reduced. Although mesoscopic electrical circuits constitute an outstanding platform to explore quantum behavior, the challenge in cooling the electrons impedes their potential.
Anthore, A.   +8 more
core   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

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