2.5D coupled FEM-SBFEM analysis of ground vibrations induced by train movement

Yaseri, Alireza; Bazyar, Mohammad Hossein; Javady, S.

doi:10.1016/j.soildyn.2017.10.021

Cited by 25 publications

(13 citation statements)

References 45 publications

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“…Alternatively, rather than use multiple different approaches, an absorbing boundary condition can be used purely within the FE approach. This can be achieved using several techniques, including: infinite elements [8,18], viscous absorbing boundaries [19,20], scaled boundary finite elements [21] and perfectly matched layers [22,23]. As an example, [23][24][25] [26] showed that it is possible to achieve high accuracy 3D solutions using the 2.5D FEM-PML approach without losing computational efficiency.…”

Section: Introductionmentioning

confidence: 99%

The effect of tunnel construction on future underground railway vibrations

Ruiz

Soares

Costa

et al. 2019

Soil Dynamics and Earthquake Engineering

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Section: Introductionmentioning

confidence: 99%

The effect of tunnel construction on future underground railway vibrations

Ruiz

Soares

Costa

et al. 2019

Soil Dynamics and Earthquake Engineering

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“…Coupled 2.5D FE-BE models were also applied to surface railways in [115][116][117][118][119][120]. In [121] a 2.5D model was developed based on the method of fundamental solutions coupled to the finite element method (MFS-FEM) and in [122] the finite element method was coupled with a scaled boundary finite element method (FEM-SBFEM).…”

Section: Numerical Methods In the Frequency Domainmentioning

confidence: 99%

Modelling, simulation and evaluation of ground vibration caused by rail vehicles

Thompson

Kouroussis

Ntotsios

2019

Vehicle System Dynamics

126

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There is a great need to develop rail networks over long distances and within cities as more sustainable transport options. However, noise and vibration are seen as a negative environmental consequence. Compared with airborne noise, the related problem of ground vibration is much more complex. The properties of the ground vary significantly from one location to another. There is no common assessment criterion or measurement quantity and no equivalent to the noise maps. Ground-borne vibration is transmitted into buildings and perceived either as feelable whole-body vibration or as low frequency noise; it can also affect sensitive equipment but it is generally at a level that is too low to cause structural or cosmetic damage to buildings. A review is given of evaluation criteria for both feelable vibration and ground-borne noise, empirical and numerical prediction methods, the main vehicle and track parameters that can affect the vibration levels and a range of possible mitigation methods.

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“…A renewed interest has been seen in applying the FEM‐SBFEM method for different SSI problems with dynamic loadings 25–28 . Yaseri et al 29,30 coupled FEM with SBFEM to analyze induced ground vibration due to passing trains, and Lin et al 31 proposed SBFEM as an efficient method to evaluate dynamic dam‐reservoir interaction systems. Zhao et al 32 used FEM‐SBFEM to consider the seismic responses of dams and offshores structures, with SBFEM being applied at the water‐structure interfaces.…”

Section: Introductionmentioning

confidence: 99%

Computation of amplification functions of earth dam‐flexible canyon systems by the hybrid FEM‐SBFEM technique

Yaseri

Konrad

2021

Earthq Engng Struct Dyn

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A dam's responses can be amplified by the geometry and flexibility of its surrounding canyon. To modeling a canyon as an elastic unbounded domain, the radiation damping condition should be satisfied, and in this regard, the Scaled Boundary Finite Element Method (SBFEM) is a powerful tool. In this article, a substructure method was used to combine the standard Finite Element Method (FEM) with the SBFEM, resulting in the hybrid FEM‐SBFEM technique. This hybrid technique treats an earth dam by using FEM and a corresponding elastic unbounded canyon by SBFEM. The proposed approach was verified by data available in the literature. The seismic response of an earth dam‐flexible canyon system was investigated by employing a 3D FEM‐SBFEM method. Several amplification functions corresponding to different canyon conditions were obtained by applying a uniform displacement for the canyon boundary, and a comprehensive study was performed to examine the effects of canyon geometry and flexibility on the steady‐state response of the dam, as these two effects influenced the amplification functions. While the flexibility of the canyon significantly affects the maximum amplification function value for a dam, this value does not change for earth dams in canyons with different shapes but the same length. In addition, the lateral response of earth dams in the time domain was computed in order to analyze the aforementioned effects under an actual earthquake. The proposed amplification functions were used to compare the recorded response spectra of the El Infiernillo dam under the two earthquakes in 1966 with the calculated amplification function, and a reasonable agreement was observed between them.

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2.5D coupled FEM-SBFEM analysis of ground vibrations induced by train movement

Cited by 25 publications

References 45 publications

The effect of tunnel construction on future underground railway vibrations

The effect of tunnel construction on future underground railway vibrations

Modelling, simulation and evaluation of ground vibration caused by rail vehicles

Computation of amplification functions of earth dam‐flexible canyon systems by the hybrid FEM‐SBFEM technique

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