Results 11 to 20 of about 10,206 (280)
Large Deformation Settlement Series Solution and Numerical Simulation for Underpass Project Track
Applied Sciences, 2023 The settlement of track in a railroad underpass project was studied by theoretical analysis and numerical simulation, based on the model of winkle beam on elastic foundation. Taking the settlement of roadbed as a nonlinear boundary condition, the control
Li Chen, Fengxiao Yu, Yipu Peng
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Prediction of Differential Track Settlement in Transition Zones Using a Non-Linear Track Model
, 2022 An iterative simulation procedure for the prediction of differential settlement of ballast/subgrade in a transition zone between two track forms is presented. The procedure is based on a time-domain model of vertical dynamic vehicle–track interaction to calculate the contact loads between sleepers and ballast in the short-term, which are then used in ...
Kourosh Nasrollahi +4 more
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MATEC Web of Conferences, 2018 The turnout ballastless track is an advanced track structure with high stability and integrity. However, due to complicated geological conditions, local groundwater level declined, and many other unavoidable objective reasons, the roadbed foundation of ...
Liu Jing +7 more
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Impermeable membranes for slab-track settlement mitigation [PDF]
Environmental Geotechnics, 2018 A series of numerical simulations is used to explore the effect of the geometrical disposition of impermeable membranes in the overall performance of slab-track railway earthworks, with particular reference to the generation of settlement during several years of exposure to the atmosphere and the admissibility of these post-construction deformations ...
Pérez Romero, Joaquín +3 more
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BuildingsThe construction of urban subway tunnels typically induces soil settlement within a specific radius of the surrounding area. However, the accuracy of current methods for predicting ground deformation curves corresponding to the excavation of double-track
Yanao Liu +5 more
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Dynamic Analysis of Metro Train-Monolithic Bed Track System under Tunnel Differential Settlement
Shock and Vibration, 2020 The metro tunnel lines built in a soft soil area may suffer from tunnel differential settlement due to the high compressibility of soft soil, the engineering constructions nearby tunnel lines, and the cyclic load of metro trains. In this paper, a dynamic
Jiqing Jiang +5 more
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Settlement of Railway Track on Reinforced Ballast Overlain by Clayey
Journal of Transportation and Logistics, 2020 Air transportation development is strictly related to airport competitiveness, since the airport management seeks to improve the capacity to produce services, increase passenger and aircraft movement, improve revenues from aeronautical and non ...
Mohammed Y. Fattah +2 more
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Strategies for improving railway track-bed settlement [PDF]
, 2019 The operational cost of ballasted railway lines can be reduced by improving track-bed longevity. To aid this, this thesis develops new understandings into ballast behaviour and investigates novel improvement strategies. Three distinct novel contributions are made: 1) A large-scale, true-triaxial testing apparatus (GeoTT) is modified for the large ...
Yu, Zelong
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Remote Sensing, 2022 The track settlement has a great influence on the safe operation of high-speed trains. The existing track settlement measurement approach requires sophisticated or expensive equipments, and the real-time performance is limited.
Shuo Li +5 more
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Frontiers in Earth Science, 2023 In the process of constructing double-track subway tunnels in shallow buried loess areas, the interaction of double-track tunnels is significantly influenced by the net distance and the cross-section size, which is challenging to control the surface ...
Shuangyuan Wang +8 more
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