Isolation of ground vibration induced by high speed railway by DXWIB: Field investigation

Meng, Guang; Tian, S.P.; Chen, Q.S.; Gao, Guanghai

doi:10.1016/j.soildyn.2020.106039

Cited by 19 publications

(6 citation statements)

References 11 publications

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“…Traditional measures in the transmission path are continuous soil barriers along the railway line. Table 2 lists relative research on continuous vibration mitigation measures along the propagation path, including open trench [14,40], soft-filled barriers [14,40], stiff wave barrier [41], hollow isolation wall [42], subgrade stiffening or WIB [9,[43][44][45][46], sheet pile wall [47], and heavy masses along the track [48]. In Table 2, almost all research considered the at-grand or elevated line, but not the underground line.…”

Section: Sketch Measures On the Track Theoretical And Numerical Study...mentioning

confidence: 99%

“…However, whether periodic piles could mitigate building vibrations against traininduced vibrations, especially from an underground railway line, still needs to be investigated. Gao et al [46] Sustainability 2020, 12, x FOR PEER REVIEW 3 of 22 believed that periodic structures in the transmission path have a potential to control vibrations in some specific frequencies. This idea was originally from the field of solid-state physics.…”

Section: Theoretical and Numerical Study In-situ Measurementmentioning

confidence: 99%

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Control of Metro Train-Induced Vibrations in a Laboratory Using Periodic Piles

Jiang

Liu

et al. 2020

Sustainability

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Laboratories with sensitive instruments need a low-vibration environment. It is a challenge to control the train-induced vibration impact on these instruments when a newly planned metro line is adjacent to a laboratory building. An alternative method of mitigating train-induced ground vibrations involves installing measures along the transmission path. Recent research has highlighted the potential of periodic pile barriers with specifically designed band gaps for controlling environmental vibrations. This study performed in-situ measurements of ambient vibrations inside and outside a laboratory containing various types of sensitive instruments and located adjacent to a newly designed metro line. The vibration transfer function of the laboratory was then obtained. To help design and optimize the band gaps of periodic piles, a novel band gap performance evaluation function was proposed. Finally, numerical analysis was conducted to validate the mitigation effect of the designed periodic piles. The results showed that the band gap performance evaluation function can be used to optimize the mitigation effect of periodic piles. The proposed periodic piles clearly attenuated vibrations between 52.4 and 74.3 Hz, especially those at 63 Hz. A comparison of general vibration criteria (VC) curves revealed that vibration attenuation of one level can be obtained by the designed periodic piles.

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Section: Sketch Measures On the Track Theoretical And Numerical Study...mentioning

confidence: 99%

Section: Theoretical and Numerical Study In-situ Measurementmentioning

confidence: 99%

Control of Metro Train-Induced Vibrations in a Laboratory Using Periodic Piles

Jiang

Liu

et al. 2020

Sustainability

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“…Ma (2018), Ma et al (2017) established a ground vibration isolation system with a functional gradient WIB in an elastic ground, and the study showed that the gradient WIB can effectively reduce the vibration amplitude. Gao et al (2020Gao et al ( , 2021 proposed a joint vibration isolation method combining Duxseal industrial filler and WIB (referred to as DXWIB), and found that the DXWIB barrier enhanced the bandwidth of traditional homogeneous WIB vibration reduction through experimental studies. Zhou et al (2020) proposed a new type of combined air trench-WIB vibration isolation barrier and analyzed its vibration isolation performance in elastic foundations, which showed that the combined air trench-WIB vibration isolation barrier combined the respective advantages of air trench and WIB and could effectively control the foundation vibration caused by different frequency vibration sources.…”

Section: Introductionmentioning

confidence: 99%

Study on vibration isolation performance of composite multilayer wave impeding block based on wave impedance ratio under an underground dynamic load

Zhang

2023

Lat. Am. j. solids struct.

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Based on the theory of single-phase elastic medium and unsaturated porous medium, the vibration isolation effect of composite multilayer wave impeding block (WIB) in the unsaturated ground under an underground dynamic load is investigated. The results show that the best vibration isolation effect can be obtained by designing the wave impedance ratio between the composite multilayer WIB and unsaturated ground. The composite multilayer WIB improves the vibration-damping bandwidth compared with the homogeneous WIB. The vibration isolation effect is better the closer the embedded depth of the composite multilayer WIB is to the vibration source, and its vibration isolation effect increases significantly with the increase of thickness, but when the thickness of the WIB exceeds a certain critical thickness, its vibration isolation effect decreases with the increase of thickness. Soil saturation has a significant effect on the vibration isolation effect of composite multilayer WIB in the unsaturated ground, and the composite multilayer WIB can achieve a better vibration isolation effect at low saturation.

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“…Tian et al 23 based on the 2D semi-analytical BEM, the vibration isolation effect of Duxseal material in a 2D homogeneous elastic foundation with active vibration isolation are investigated. Subsequently, Gao et al 24,25 proposed the method of combined vibration isolation by filling Duxseal in the WIB through field tests, and the results showed that DXWIB can improve the frequency bandwidth of vibration damping, and the vibration isolation effect is better in the range of 5 Hz-70 Hz. Yet, although the above-mentioned modified WIB has improved the vibration isolation efficiency, the majority of research studies focus on the case of the WIB in the elastic or saturated foundation.…”

Section: Introductionmentioning

confidence: 99%

Isolation effect of composite multilayer wave impeding block on P-wave in unsaturated foundation

Jiang

Bao

2023

Journal of Low Frequency Noise, Vibration and Active Control

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The traditional wave impeding block (WIB) is designed as composite multilayer WIB with the same thickness to improve its vibration isolation effect. Based on the wave theory in unsaturated porous medium and elastic medium, the isolation effect of composite multilayer WIB on P-wave in unsaturated soil is investigated, and the solution of the vertical displacement at surface after setting composite multilayer WIB (as an example for triple-layer) in unsaturated foundation is obtained. The key factors such as incidence angle, frequency, saturation, thickness, and burial depth of the composite multilayer WIB are evaluated on its vibration isolation properties. The results show that the optimum vibration isolation effect can be achieved by controlling the wave impedance ratio among layers of materials. The isolation efficiency of composite multilayer WIB is 33.9% higher than homogeneous WIB with same thickness at l east, and has good vibration isolation effect for low, medium, and high frequency.

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Isolation of ground vibration induced by high speed railway by DXWIB: Field investigation

Cited by 19 publications

References 11 publications

Control of Metro Train-Induced Vibrations in a Laboratory Using Periodic Piles

Control of Metro Train-Induced Vibrations in a Laboratory Using Periodic Piles

Study on vibration isolation performance of composite multilayer wave impeding block based on wave impedance ratio under an underground dynamic load

Isolation effect of composite multilayer wave impeding block on P-wave in unsaturated foundation

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