Journal ArticleDOI
Vibration analysis of pile-supported embankments under high-speed train passage
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In this article, the authors investigated the impact of train speed on the surface wave field at high train speeds and the dependence of vibration amplitude on the train speed and the phenomenon of critical speed, and the response at some typical locations in the system when the train moves at the critical speed.About:
This article is published in Soil Dynamics and Earthquake Engineering.The article was published on 2013-12-01. It has received 49 citations till now. The article focuses on the topics: Critical speed & Rayleigh wave.read more
Citations
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The effect of boundary conditions, model size and damping models in the finite element modelling of a moving load on a track/ground system
TL;DR: In this article, the use of finite element models in the time domain to represent a load moving on a railway track on a flexible ground was investigated, and a systematic study was carried out to compare different sizes and shapes of the finite element mesh, different boundary conditions intended for suppressing reflections from the truncated model boundaries, and different models of soil damping.
Journal ArticleDOI
Finite element model of ballasted railway with infinite boundaries considering effects of moving train loads and Rayleigh waves
TL;DR: In this article, a three-dimensional model incorporating finite element (FE) meshes with infinite element (IE) boundaries for ballasted railways is proposed, where moving train loads are simulated with sliding motions of moving elements which have hard contact feature at the interface with supporting rails.
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Train-induced vibration prediction in tunnels using 2D and 3D FEM models in time domain
TL;DR: In this article, a 3D numerical FEM model of a railway tunnel is developed to predict railway induced vibrations, which is calibrated and validated with in situ measurements, and two different 2D FEM models are constructed following the same assumptions as in the 3D model but different methodologies to introduce the loads.
Journal ArticleDOI
The influence of soil nonlinear properties on the track/ground vibration induced by trains running on soft ground
TL;DR: In this paper, a finite element model of the track and ground has been developed to study the deflections induced by trains running on soft ground, which can be specified in terms of the shear modulus reduction as a function of octahedral shear strain.
Journal ArticleDOI
Non-linear soil behaviour on high speed rail lines
TL;DR: In this paper, a semi-analytical model is developed which allows for soil stiffness and damping to dynamically change as a function of strain, and the model uses analytical expressions for the railroad track, coupled to a thin-layer element formulation for the ground.
References
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Book
Nonlinear Finite Elements for Continua and Structures
TL;DR: In this paper, the authors present a list of boxes for Lagrangian and Eulerian Finite Elements in One Dimension (LDF) in one dimension, including Beams and Shells.
Journal ArticleDOI
Finite Dynamic Model for Infinite Media
John Lysmer,Roger L. Kuhlemeyer +1 more
TL;DR: In this paper, a numerical method for the dynamic analysis of infinite continuous systems is developed, applicable to systems for which all exciting forces and geometrical irregularities are confined to a limited region and is applicable to both transient and steady state problems.
Journal ArticleDOI
Unified dynamic shear moduli and damping ratios of sand and clay
Isao Ishibashi,Xinjian Zhang +1 more
TL;DR: In this article, the experimental data on dynamic shear moduli and damping ratios of various soils including non-plastic sands to highly plastic clays are collected and reanalyzed and brought into simple unified formulas.
Journal ArticleDOI
Numerical Analysis of Geosynthetic-Reinforced and Pile-Supported Earth Platforms over Soft Soil
Jie Han,Mohammed A. Gabr +1 more
TL;DR: In this article, a numerical study was conducted to investigate pile-soil-geosynthetic interactions by considering three major influence factors: the height of the fill, the tensile stiffness of geosynthetics, and the elastic modulus of pile material.
Journal ArticleDOI
High-speed railway lines on soft ground: dynamic behaviour at critical train speed
Christian Madshus,Amir M. Kaynia +1 more
TL;DR: In this paper, it is shown that large dynamic amplifications appear in the dynamic response of the rail/embankment/ground system as the train speed approaches an apparently critical value.
Related Papers (5)
High-speed railway lines on soft ground: dynamic behaviour at critical train speed
Christian Madshus,Amir M. Kaynia +1 more