Propagation of structure-borne noise in building adjacent to subway lines

Sadeghi, Javad; Vasheghani, Mojtaba; Khajehdezfuly, Amin

doi:10.1016/j.conbuildmat.2023.132765

Cited by 15 publications

(6 citation statements)

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“…With the rapid development of urban rail transit in large cities, the issue of environmental vibrations and noise caused by subway trains has become increasingly critical [1]. Prolonged exposure to such vibration and noise environments can have adverse effects on the health of both passengers and surrounding residents [2]. Every year, there are numerous * Authors to whom any correspondence should be addressed.…”

Section: Introductionmentioning

confidence: 99%

“…With the field measurement data, the assessment of different vibration and noise mitigation measures can be conducted in a reasonable manner. Therefore, a large number of studies have conducted measurements on the ground and nearby buildings [2,5,15,[17][18][19][20][21][22][23][24]. Compared to the issue of vibration and noise at the nearby buildings which has been extensively studied, the relevant discussion on the vibration and noise at excitation source (i.e.…”

Section: Introductionmentioning

confidence: 99%

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In-situ measurement of subway train-induced vibration and noise of steel spring floating slab with MEMS-based sensing units

Liu,

Wang,

Yin

et al. 2024

Meas. Sci. Technol.

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The concrete floating slab, as a widely-used measure to reduce the subway-induced vibration and noise, can deteriorate with the accumulation of trainload. To monitor the dynamic performance of the floating slab during operation, this study develops a lightweight sensing unit based on MEMS. This sensing unit, which can be easily mounted on the concrete slab, enables synchronous monitoring of vibration and noise at different sampling frequencies with a very low power consumption. With the advantage of easy installation, the sensing units are mounted on various concrete slabs and tunnel walls to collect massive vibration and noise data. With the monitoring data, the dynamic performance and vibration reduction capability of the floating slab can be assessed. A case study is conducted on two floating slab sections: one section has a floating slab with a potential defect on its shear hinge and the other has a normal floating slab. The monitoring results show that: 1) the train condition has a significant effect on the amplitude of the track-side vibration; 2) the train-induced noise data last longer than vibration data during the passage of trains; 3) for the floating slab with shear hinge defect, the vibration levels at edge points are much higher than that in the middle. Through the monitoring test, the performance of the MEMS-based sensing unit and its adaptability in subway circumstances are verified.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

In-situ measurement of subway train-induced vibration and noise of steel spring floating slab with MEMS-based sensing units

Liu,

Wang,

Yin

et al. 2024

Meas. Sci. Technol.

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“…It is worth mentioning the use of vibration isolation on railway tracks, which allows for the reduction in the propagation of vibrations generated during the passage of a train [ 56 , 57 , 58 ]. This has a positive impact not only on buildings located in the vibration influence zone [ 59 , 60 , 61 , 62 , 63 ], but also on residents who are exposed to a smaller dose of annoying vibrations [ 64 , 65 , 66 , 67 ].…”

Section: Introductionmentioning

confidence: 99%

Alternative Method for Determination of Vibroacoustic Material Parameters for Building Applications

Nering,

Nering

2024

Materials

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The development of urbanization and the resulting expansion of residential and transport infrastructures pose new challenges related to ensuring comfort for city dwellers. The emission of transport vibrations and household noise reduces the quality of life in the city. To counteract this unfavorable phenomenon, vibration isolation is widely used to reduce the propagation of vibrations and noise. A proper selection of vibration isolation is necessary to ensure comfort. This selection can be made based on a deep understanding of the material parameters of the vibration isolation used. This mainly includes dynamic stiffness and damping. This article presents a comparison of the method for testing dynamic stiffness and damping using a single degree of freedom (SDOF) system and the method using image processing, which involves tracking the movement of a free-falling steel ball onto a sample of the tested material. Rubber granules, rubber granules with rubber fibers, and rebound polyurethanes were selected for testing. Strong correlations were found between the relative indentation and dynamic stiffness (at 10–60 MN/m3) and the relative rebound and damping (for 6–12%). Additionally, a very strong relationship was determined between the density and fraction of the critical damping factor/dynamic stiffness. The relative indentation and relative rebound measurement methods can be used as an alternative method to measure the dynamic stiffness and critical damping factor, respectively.

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“…Therefore, traininduced vibrations have received increasing attention because of their negative impact on the long-term protection of historical buildings [6,7], the operation of precision instruments [8][9][10] and the residents living in the buildings over the metro depots [11][12][13][14], which are still urgent issues that need to be addressed today. In addition, how to predict train-induced environmental vibration more efficiently and accurately has also been a focus of attention in recent years [15,16], for example, considering various types of irregularities [17], establishing analytical prediction models [18] and introducing neural networks [19]. Vibration mitigation measures are adopted to address these issues in the vibration source [20,21], propagation path [22,23] and vibration receivers [24] based on the vibration propagation route.…”

Section: Introductionmentioning

confidence: 99%

“…Fsi,j+n x s , y si,j+n , ω, ω F = e +i(ω F −ω)nL s /v Fsi,j x s , y si,j , ω, ω F (16) In Equation (15), y si,j+n = y si,j + nL s , n is the number of periodic elements between the detection point and its mapping point in the periodic element, and L s is the length of the periodic element.…”

mentioning

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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Propagation of structure-borne noise in building adjacent to subway lines

Cited by 15 publications

References 50 publications

In-situ measurement of subway train-induced vibration and noise of steel spring floating slab with MEMS-based sensing units

In-situ measurement of subway train-induced vibration and noise of steel spring floating slab with MEMS-based sensing units

Alternative Method for Determination of Vibroacoustic Material Parameters for Building Applications

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

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