Results 11 to 20 of about 11,765,211 (293)

Testing and Analysis of the Vibration Response Characteristics of Heavy-Haul Railway Tunnels and Surrounding Soil with Base Voids

open access: yesApplied Sciences, 2023
This paper discusses research on the dynamic response characteristics of a heavy-haul railway tunnel and the surrounding soil under the conditions of substrate health and a base void. The detection results of the base condition of 20 double-track tunnels
Liping Gao   +4 more
doaj   +1 more source

Experimental investigation and numerical analysis of stress concentration distribution at the typical slots for stiffeners

open access: yesOpen Physics, 2022
Stress concentrations typically exist around the perimeter of an opening and on attached structures, thereby resulting in a potential risk of crack initiation.
Wu Jiameng   +3 more
doaj   +1 more source

Study on freezing temperature field of contacting channel in water-rich weak stratum

open access: yes矿业科学学报, 2020
A subway contacting channel project in water-rich weak stratum was constructed by artificial freezing method. Taking that as the research background, the evolution law of soil temperature field was studied in contact channel freezing project by the ...
Zhu Xianlei
doaj   +1 more source

Effects of seepage and weak interlayer on the failure modes of surrounding rock: model tests and numerical analysis [PDF]

open access: yesRoyal Society Open Science, 2019
The presence of weak interlayers and groundwater are common adverse geological conditions in tunnels. To investigate the modes of failure of rock masses surrounding tunnels owing to weak interlayers and groundwater, model tests and numerical simulations ...
Jing Hu   +4 more
doaj   +1 more source

Numerical Simulation of the Ice Breaking Process for Hovercraft

open access: yesJournal of Marine Science and Engineering, 2021
A hovercraft can adapt to an ice area, open water, land and other environments, owing to its unique hull structure. It also plays an important role in transporting supplies, rescuing people, breaking ice and conducting other tasks. Ice load prediction is
Jiangjie Jin   +3 more
doaj   +1 more source

Research on Static and Dynamic Loading Performance of Geosynthetic Reinforced and Pile-Supported Embankment

open access: yesApplied Sciences, 2023
Geosynthetic reinforced and pile-supported (GRPS) provide an economic and effective solution for embankments. To investigate the load-bearing mechanism of the GRPS embankment in loess, experimental and numerical studies under static and dynamic loading ...
Yousheng Deng   +4 more
doaj   +1 more source

Model Test Study of the Synergistic Interaction between New and Existing Components of Sheet Pile Walls

open access: yesApplied Sciences, 2023
New and existing components of retaining structures are often combined in the width section. When combining the design and use requirements of the existing and new structures, the synergistic interactions between the existing and new structures and the ...
Wenhui Zhao, Xiaomin Wu, Xuening Ma
doaj   +1 more source

Scaling test of fermion actions in the Schwinger model [PDF]

open access: yes, 2005
We discuss the scaling behaviour of different fermion actions in dynamical simulations of the 2-dimensional massive Schwinger model. We have chosen Wilson, hypercube, twisted mass and overlap fermion actions.
Christian, N.   +3 more
core   +1 more source

Maneuvering Hydrodynamic Forces Acting on Manta-type UUV Using CFD

open access: yes한국해양공학회지, 2020
In this study, we investigate surge force, heave force, and pitch moment, which are vertical plane hydrodynamics acting on Manta-type unmanned underwater vehicles (UUVs), using a model test and computational fluid dynamics (CFD) simulation. Assessing the
Seong-Eun Lee   +2 more
doaj   +1 more source

Distribution Law of the Initial Temperature Field in a Railway Tunnel with High Rock Temperature: A Model Test and Numerical Analysis

open access: yesApplied Sciences, 2023
The distribution of the initial temperature field of a high-rock-temperature tunnel is critical for determining the tunnel line and the construction scheme.
Shoubang Sun   +3 more
doaj   +1 more source

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