Results 11 to 20 of about 31,564 (295)
Twin-tunnelling-induced changes to clay stiffness [PDF]
, 2018 With urban tunnel construction growing worldwide, the ability to accurately predict the ground and structural response to tunnelling and the associated risks is now more important than ever before. Engineers are expected to consider all aspects of tunnel
Divall, S.
core +1 more source
Field measurements and parametric studies for the thermal environment of underground tunnel entrance in cold climate zones [PDF]
E3S Web of Conferences, 2022 In frozen regions, especially metro tunnel portal sections, which are vulnerable to an externally low-temperature atmosphere, would lead to frozen damage affecting traffic safety.
Yang Changqing +6 more
doaj +1 more source
Study on the Influence of Train Dynamic Load on underneath Tunnel Cast-in-Situ Concrete in Early Age
Shock and Vibration, 2022 The cast-in-situ concrete lining is prone to structural damage, cracks, and other defects, due to the influence of dynamic load at an early age, which is necessary to study the dynamic response.
Yuchao Zheng +6 more
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Dynamic response of a double-deck circular tunnel embedded in a full-space [PDF]
, 2016 © 2016. This version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/A three-dimensional dynamic model for calculating the ground-borne vibrations generated by harmonic loads applied on the interior ...
Arcos Villamarín, Robert +3 more
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Assessment of static and dynamic stresses horse-shoe tunnel with connecting gallery using finite element method: (as a case study) [PDF]
, 2018 This paper illustrates the use of MIDAS GTS NX to investigate the tunnel’s simulation in order to highlight the effect of static and dynamic load on the behaviour of tunnel to compare this response expressed in terms of displacement and stresses ...
Hrubešová, Eva, Mohammed, Jaafar
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Advances in Civil Engineering, 2020 Based on the maximum value of the self-stability of surrounding rock, the key issues affecting the distribution of the minimum mock cover thickness of the surrounding rock self-stability (MRCT-SRS) of the metro tunnel in the soil-rock dualistic stratum ...
Ziguang Zhang +3 more
doaj +1 more source
A New Design Method of Shield Tunnel Based on the Concept of Minimum Bending Moment
Applied Sciences, 2022 As the soil-resistance coefficient in a soft soil area is small, overlarge bending moment may cause exceeding transverse deformation for the shield tunnel and cause structural diseases and waterproof failure at the longitudinal segment joints.
Dawei Huang +5 more
doaj +1 more source
Settlement Behaviors of Metro Tunnels during the Metro Operation
Shock and Vibration, 2015 This paper investigates the settlement behaviors of a metro tunnel during metro operation. A nonlinear vibration model of vehicle-track is established, and a series of vibration loadings for the frequency domain acting on segments are obtained based on a modal analysis method and applying the Fourier transformation algorithm.
Wenbo Shi +3 more
openaire +2 more sources
Shock and Vibration, 2020 Seismic evaluation of underground structures such as tunnels requires nonlinear dynamic analysis, due to the complex dynamic behavior of soil and the interaction of soil and structure. Simulation of the seismic response of the structure using nonlinear dynamic analysis is possible only with proper acceleration time history.
Seyed Amin Razavian Amrei +3 more
openaire +2 more sources
Intelligent Detection System for Metro Tunnel Lining Defects Based on Deep Learning Method
Chengshi guidao jiaotong yanjiuObjective The main defects on metro tunnel inner wall are cracks and water seepage. Current detection methods based on manual and semi-automatic equipment have problems such as high intensity, low efficiency, and low reliability.
ZHANG Yue +5 more
doaj +1 more source