Performance of rubber-concrete composite periodic barriers applied in attenuating ground vibrations induced by metro trains

Li, Zhe; Ma, Meng; Liu, Kuokuo; Jiang, Bolong

doi:10.1016/j.engstruct.2023.116027

Cited by 28 publications

(6 citation statements)

References 20 publications

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“…Thompson et al (2015) explored the vibration isolation prowess of WIBs buried beneath railway tracks, revealing significant vibration reduction in the 16-50 Hz frequency range. Li et al (2023a) analyzed the control effect of WIBs on subway vibrations through numerical soft-ware, demonstrating good vibration isolation performance for frequencies between 5 and 15 Hz. Ma et al (2019) concentrated on the vibration isolation performance of WIBs under moving loads, concluding that these structures exhibit notable vibration control potential within a 10 Hz frequency.…”

Section: Introductionmentioning

confidence: 99%

RETRACTED: Application of periodic structural wave impeding block for vibration isolation in foundation

Ling,

Zhu,

Song

2023

Front. Mater.

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The wave impeding board (WIB) is frequently integrated beneath dynamic machinery, tracks, and subgrades to counteract vibrations emanating from artificial sources. However, conventional WIBs have exhibited a limited isolation frequency band due to their dependence on the soil cut-off frequency of soil. Furthermore, the vibration sources typically encompass intricate frequency components spanning low, medium, and high frequencies. To overcome the technical limitations of WIBs relying on the cut-off frequency of soil, a new periodic structural wave impeding board (PSWIB) is proposed based on the principles of phononic crystals. Theoretical and numerical analyses demonstrate that PSWIB exhibits bandgap characteristics, with the attenuation range achieved by finite periodic structures aligning with the bandgap of an infinite PSWIB. Maximum amplitude reductions of 47 dB and 65 dB are achieved within the vibration attenuation range. Compared to traditional WIB, PSWIB surpasses the constraints imposed by the cut-off frequency of soil and allow for the design of constituent parameters based on the characteristics of the vibration source, enabling effective isolation of the target frequency vibrations.

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Section: Introductionmentioning

confidence: 99%

RETRACTED: Application of periodic structural wave impeding block for vibration isolation in foundation

Ling,

Zhu,

Song

2023

Front. Mater.

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“…Based on the Bloch-Floquet theory and plane wave expansion method, the inner and outer diameters r 1 and r 2 of the cylindrical piles and the pile arrangement period constant a were calculated. The detailed calculation principles and process can be found in [63,64]. COMSOL Multiphysics 5.3a (a commercial FE software) was used to solve the bandgaps in the row piles.…”

Section: Design Of Periodic Row Pilesmentioning

confidence: 99%

Method for Controlling Full-Frequency Band Environment Vibration by Coordinating Metro Vibration Sources and Propagation Paths

Tan,

Jiang,

et al. 2023

Applied Sciences

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Floating slab tracks (FSTs) are used to reduce the impact of vibration on precision instruments and historical relics along metro lines; however, ground vibration is universally amplified at the natural frequency of the tracks. In this study, a full-frequency control method that considers frequency matching for environmental vibrations, in combination with metro vibration sources and propagation paths, was developed based on the bandgap theory of the periodic structure. The effectiveness of this method was analysed by establishing a three-dimensional metro train–FST coupled model and a finite element analysis model of track bed–tunnel–soil–row piles. The results show that ground vibration can be reduced by approximately 3–5 dB at the natural frequency of the FST by adjusting the bandgap range of the periodic piles to 7–9 Hz, eliminating the adverse effect of vibration amplification at the natural frequency of the FSTs. The proposed control method shows good vibration control effects and can effectively minimise ground vibration in the full-frequency range.

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“…In addition, according to the theory of diffraction, the low-frequency noise is less affected by the noise barrier during propagation, resulting in unsatisfactory noise reduction in the low-frequency range. To overcome the shortages mentioned above, many solutions have been suggested, such as optimizing the cross-sectional geometry of the top edge of the barrier, adopting composite periodic structures, and active noise barriers [6][7][8][9][10]. Among them, active noise barriers have attracted a lot of attention.…”

Section: Introductionmentioning

confidence: 99%

Research on the Arrangement of Additional Source for Large Space Protection of an Active Noise Barrier

Wang,

Chang,

Chen

et al. 2024

Applied Sciences

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When active noise control technology is applied to traffic noise control, additional sources are often added to the facade of the barrier, and error sensors are placed in the protected area. The noise reduction effect in the area without error sensors is often ignored. In this paper, the effect of the additional source configuration on the sound field in the space without error sensors is researched. By analyzing the directivity and distribution of the sound field at the top of the barrier under various conditions, it is believed that the optimal location of the additional source is related to the height of the primary source and the barrier. An approximate model is established to evaluate the optimal location of the additional source for achieving a good noise reduction effect in a large space. Experiments are also carried out to verify the model. The conclusions are beneficial for improving the noise reduction effect in the area higher than the barrier and without error microphones.

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Performance of rubber-concrete composite periodic barriers applied in attenuating ground vibrations induced by metro trains

Cited by 28 publications

References 20 publications

RETRACTED: Application of periodic structural wave impeding block for vibration isolation in foundation

RETRACTED: Application of periodic structural wave impeding block for vibration isolation in foundation

Method for Controlling Full-Frequency Band Environment Vibration by Coordinating Metro Vibration Sources and Propagation Paths

Research on the Arrangement of Additional Source for Large Space Protection of an Active Noise Barrier

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