Experimental study and numerical analysis for vibration isolation performance on open trench and wave impeding block combined vibration isolation barrier

Cao, Xiaolin; Zhou, Fengxi; Liu, Jia; Ma, Qiang

doi:10.1016/j.soildyn.2023.108418

Cited by 7 publications

(1 citation statement)

References 30 publications

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“…This strategy is particularly relevant in scenarios involving vibrations generated by vehicles or machinery. Common types of vibration isolation barriers include in-filled trenches [221][222][223], arrays of piles [224], and wave-impeding blocks (WIB) [225][226][227], among others. Vibration waves exhibit phenomena such as reflection and diffraction upon encountering these barriers.…”

Section: Vibration Isolation Barrier In Soilmentioning

confidence: 99%

Structural Vibration Comfort: A Review of Recent Developments

Xie,

Hua

2024

Buildings

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With continuous improvements in the social economy and living standards of individuals, the vibration comfort of building structures has gradually been emphasized by academic and engineering communities, such as vehicle-induced vibrations in buildings near traffic, human-induced vibrations in large-span structures, wind-induced vibrations in super-high-rise buildings, and machinery-induced structural vibrations. Comfort-based structural analysis is distinct from traditional safety-based structural analysis, and its theoretical systems and unified guidelines have not yet been established. This paper reviews recent research on structural vibration comfort, including major load categories and their impacts, comfort-based structural analysis, evaluation methods, and vibration-mitigation measures. By presenting the shortcomings of the existing research, potential topics for future study are suggested.

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Section: Vibration Isolation Barrier In Soilmentioning

confidence: 99%

Structural Vibration Comfort: A Review of Recent Developments

Xie,

Hua

2024

Buildings

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Ground vibration isolation using mass scatters: A comparative study with trench barriers and wave‐impeding blocks

Mhanna,

Sabaa,

Mahdi

et al. 2024

Deep Underground Science and Engineering

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Traffic‐induced ground vibrations cause significant problems for residents and nearby structures. Reducing the effect of these vibrations on the neighboring environment is a key challenge, particularly in urban areas. This study presents both numerical and experimental investigations of the performance of mass scatters for screening ground vibrations. A three‐dimensional numerical model is validated and extended to conduct a comparative study on the efficiency of three geotechnical methods of isolation. These methods include trench barriers, wave‐impeding blocks (WIBs), and mass scatters. The results showed that mass scatters represent an efficient way of scattering ground vibrations, and their efficiency is mainly related to the weights of mass scatters and their natural frequency, which control the dynamic soil response in the frequency domain. Rigid trench barriers are less effective than soft ones, and their efficiency is more pronounced regarding the WIB. Soft barriers with a depth of an order of half of the wavelength can decrease the vibration levels by up to 50%, which is comparable to the performance of enormous mass scatters. The dimensions of WIBs must be chosen according to the wavelength of incident waves and the cutoff frequency of the topsoil layer. Considering the significant wavelength of traffic‐induced vibration, the use of trench barriers or WIBs becomes impractical and expensive; therefore, mass scatters appear to be an efficient and practical solution.

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