### Skapa referens, olika format (klipp och klistra)

**Harvard**

Cao, Z. och Boström, A. (2013) *Dynamic response of a poroelastic half-space to accelerating or decelerating trains*.

** BibTeX **

@article{

Cao2013,

author={Cao, Z. G. and Boström, Anders},

title={Dynamic response of a poroelastic half-space to accelerating or decelerating trains},

journal={Journal of Sound and Vibration},

issn={0022-460X},

volume={332},

issue={11},

pages={2777-2794},

abstract={ The dynamic response of a fully saturated poroelastic half-space due to accelerating or decelerating trains is investigated by a semi-analytical method. The ground is modeled as a saturated poroelastic half-space and Blot's theory is applied to characterize the soil medium, taking the coupling effects between the soil skeleton and the pore fluid into account. A detailed track system is considered incorporating rails, sleepers and embankment, which are modeled as Euler-Bernoulli beams, an anisotropic Kirchhoff plate, and an elastic layer, respectively. The acceleration or deceleration of the train is simulated by properly choosing the time history of the train speed using Fourier transforms combined with Fresnel integrals in the transformed domain. The time domain results are obtained by the fast Fourier transform (FFT). It is found that the deceleration of moving trains can cause a significant increase to the ground vibrations as well as the excess pore water pressure responses at the train speed 200 km/h. Furthermore, the single-phase elastic soil model would underestimate the vertical displacement responses caused by both the accelerating and decelerating trains at the speed 200 km/h.},

year={2013},

keywords={high-speed trains, ground vibration, moving loads, railway track, soil, medium, analytical-model, simulation, prediction, beams, lines},

}

** RefWorks **

RT Journal Article

SR Electronic

ID 176957

A1 Cao, Z. G.

A1 Boström, Anders

T1 Dynamic response of a poroelastic half-space to accelerating or decelerating trains

YR 2013

JF Journal of Sound and Vibration

SN 0022-460X

VO 332

IS 11

SP 2777

OP 2794

AB The dynamic response of a fully saturated poroelastic half-space due to accelerating or decelerating trains is investigated by a semi-analytical method. The ground is modeled as a saturated poroelastic half-space and Blot's theory is applied to characterize the soil medium, taking the coupling effects between the soil skeleton and the pore fluid into account. A detailed track system is considered incorporating rails, sleepers and embankment, which are modeled as Euler-Bernoulli beams, an anisotropic Kirchhoff plate, and an elastic layer, respectively. The acceleration or deceleration of the train is simulated by properly choosing the time history of the train speed using Fourier transforms combined with Fresnel integrals in the transformed domain. The time domain results are obtained by the fast Fourier transform (FFT). It is found that the deceleration of moving trains can cause a significant increase to the ground vibrations as well as the excess pore water pressure responses at the train speed 200 km/h. Furthermore, the single-phase elastic soil model would underestimate the vertical displacement responses caused by both the accelerating and decelerating trains at the speed 200 km/h.

LA eng

DO 10.1016/j.jsv.2012.12.015

LK http://dx.doi.org/10.1016/j.jsv.2012.12.015

OL 30