Response of poroelastic layers to moving loads

Burke, Michael A.; Kingsbury, Herbert B.

doi:10.1016/0020-7683(84)90015-5

Cited by 44 publications

(14 citation statements)

References 16 publications

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“…As far as the negative profile of the porewater pressure as the load moves away from the point of interest is concerned, the two solutions exhibit similar response for k ¼ 10 À7 m 3 s/kg ¼ 10 À3 m/s. This porewater pressure behavior is consistent with earlier theoretical analysis (Siddharthan et al, 1993;Burke and Kingsbury, 1984). However, this consistency between the two solutions in the negative values of pressure is not longer true for c ¼ 100 m/s, as shown in Fig.…”

Section: Comparison Between Approximate Methods and Exact Solutionsupporting

confidence: 91%

Dynamic effects of moving load on a poroelastic soil medium by an approximate method

Theodorakopoulos

Chassiakos

Beskos

2004

International Journal of Solids and Structures

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Section: Comparison Between Approximate Methods and Exact Solutionsupporting

confidence: 91%

Dynamic effects of moving load on a poroelastic soil medium by an approximate method

Theodorakopoulos

Chassiakos

Beskos

2004

International Journal of Solids and Structures

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“…For example, the responses of a poroelastic half-space subjected to a moving load under the plane strain condition were studied by Burke and Kingsbury [11], Siddharthan et al [12], Theodorakopoulos [13], Theodorakopoulos et al [14] and Jin et al [15] . The three-dimensional steady-state responses of a fully saturated poroelastic half-space subjected to a moving rectangular load was investigated by Cai et al [16].…”

Section: H Sun Y Cai and C Xumentioning

confidence: 99%

Three‐dimensional steady‐state response of a railway system on layered half‐space soil medium subjected to a moving train

Sun

Cai

2008

Num Anal Meth Geomechanics

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SUMMARYThe paper presents a three-dimensional study on the steady-state response of a track system and layered half-space soil medium subjected to the load induced by the passages of a moving train with the substructure method. Practically, due to the ground water table being several meters beneath the ground surface, the soil profile can be divided into two layers: the upper layer modeled by an elastic medium and the lower layer by a fully saturated poroelastic medium governed by Biot's theory. In the meanwhile, the rails are regarded as an infinitely long Euler beam, and the sleepers are represented by a continuous mass. The effect of the ballast is accounted for by introducing the Cosserat model for granular medium, and the train is described by a series of moving axle point loads, depending on the geometry of the train. The influences of the thickness, the mass and the rigidity of the elastic layer and the mass of the ballast on rail's displacement responses are carefully investigated. Numerical results show that the influences of these parameters are significant for high train velocity, while vanishes for low velocity.

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“…Based on Senjuntichai and Rajapakse (1994), Rajapakse and Senjuntichai (1995) discussed the dynamic responses of a multi-layered poroelastic medium under oscillating load. Burke and Kingsbury (1984) presented an analytical solution for a poroelastic medium subjected to traveling surface pressure. Siddharthan et al (1993) presented works on the dynamic response of a poroelastic half-space to moving load under plane strain condition.…”

Section: Introductionmentioning

confidence: 99%

Steady state responses of poroelastic half-space soil medium to a moving rectangular load

Cai

Sun

2007

International Journal of Solids and Structures

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The dynamic steady state responses of a poroelastic half-space soil medium subjected to a moving rectangular load are investigated analytically/numerically. The full dynamic poroelastic theory of Biot is employed, under the assumption of an incompressible solid grain and neglecting the apparent mass density. Using the Fourier transform, the governing equations of motion are then reduced to a system of four coupled ordinary differential equations which are solved semi-analytically. Soil vertical displacements, accelerations and pore water pressures induced by moving load are calculated. Computed result shows that load velocity and intrinsic permeability of the soil medium shows an apparent effect on its dynamic responses and pore water pressures.

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Response of poroelastic layers to moving loads

Cited by 44 publications

References 16 publications

Dynamic effects of moving load on a poroelastic soil medium by an approximate method

Dynamic effects of moving load on a poroelastic soil medium by an approximate method

Three‐dimensional steady‐state response of a railway system on layered half‐space soil medium subjected to a moving train

Steady state responses of poroelastic half-space soil medium to a moving rectangular load

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