Use of in-filled trenches to screen ground vibration due to impact pile driving: experimental and numerical study

Jayawardana, Pubudu; Achuhan, R.; Silva, G.H.M.J. Subashi De; Thambiratnam, David

doi:10.1016/j.heliyon.2018.e00726

Cited by 25 publications

(8 citation statements)

References 23 publications

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“…In this study, FLAC software [28] was adopted to investigate the efficiency and behavior of open and in-filled (geofoam) trenches in mitigating the ground-borne vibration due to the impact loadings generated by machine foundations or other sources. Many researchers have used the axisymmetric model to obtain a realistic model of wave propagation and to evaluate the effect of trenches on mitigating these groundborne vibrations [18,22,23,29]. Therefore, the axisymmetric condition for such types of impact loadings was considered in the present study.…”

Section: Scheme Of Finite-difference Modelingmentioning

confidence: 99%

“…Massarsch and Fellenius [17] focused on the ground vibration induced by impact pile driving and proposed a model to study the vibration force that can be transmitted along with the soil-pile transmission. Jayawardana et al [18] investigated the effectiveness of in-filled trenches in screening the ground vibrations induced by pile driving impacts and summarized that the open and water-filled trenches had a better performance compared to other in-filled trenches. The authors also indicated that soft in-filled materials contributed more towards vibration reduction compared to stiffer materials.…”

Section: Introductionmentioning

confidence: 99%

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Performance of Open and In-Filled (Geofoam) Trenches in Mitigating Ground-Borne Vibrations Induced by Impact Loading

Jazebi

Ahmadi

Saberian

et al. 2022

Int. J. Pavement Res. Technol.

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The open or in-filled trenches are often used in engineering practice to mitigate ground vibration induced by different types of vibration sources. A novel approach which is considering the effect of Rayleigh wavelength on the efficiency of open and in-filled trenches coupled with regular specific normalized dimensions was implemented in this study. While impact loading is a very common type of loading (in, e.g., machine foundations, driven pile installation), it was rarely studied in the past. The loading is selected to consist of 12 impact pulses. In this study, it was shown that Rayleigh wavelength controls the effect of trench-normalized dimensions on its performance, and therefore, studying the trench effectiveness based only on its normalized dimensions is a limited assumption. For open trenches, the depth of trench is the key parameter controlling its efficiency, while its width does not have a significant effect except for shallow trenches (normalized width of less than 0.7) in the condition of low Rayleigh wavelength (2.0 m). Also, it was shown that the trench should be installed at a normalized distance of at least 1.0. Furthermore, the numerical results revealed that the effect of the normalized width of the geofoam trench on its efficiency for Rayleigh wavelength $${\lambda }_{R}=2.0 \, \mathrm{m}$$ λ R = 2.0 m was more than that for $${\lambda }_{R}=8.0 \, \mathrm{m}$$ λ R = 8.0 m . Also, several graphs for the design of geofoam trenches under different Rayleigh wavelengths were proposed in this study, which could be useful in practice.

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Section: Scheme Of Finite-difference Modelingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Performance of Open and In-Filled (Geofoam) Trenches in Mitigating Ground-Borne Vibrations Induced by Impact Loading

Jazebi

Ahmadi

Saberian

et al. 2022

Int. J. Pavement Res. Technol.

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“…In terms of filled damping grooves Jayawardana et al [21] determined that the open damping ditch and water-filled damping ditch exhibited better performance than other types of damping ditches; Ulgen and Toygar [18] determined that the geofoam-filled trench had the best vibration damping performance; Ju et al [14] and Barbosa et al [15] found that the water-filled groove had low damping efficiency in the Ydirection of the wave; Alzawi and Naggar [20] found that the damping performance was lower for the open damping ditch than the filled ditch when the distance between the damping ditch and the vibration source was short. Table 2: Damping ditch size of each model.…”

Section: Different Shapesmentioning

confidence: 99%

“…e results showed that the damping performance was lower for the open damping ditch than the filled ditch when the distance between the damping ditch and the vibration source was short. Jayawardana et al [21] studied the vibration attenuation effect of a damping ditch during piling installation using field tests and numerical simulations. It was determined that the open damping ditch and water-filled damping ditch exhibited better performance than other types of damping ditches.…”

Section: Introductionmentioning

confidence: 99%

Effect of the Size and Position of a Damping Ditch on the Reduction of the Blasting Vibration

Duan

Shen

et al. 2020

Advances in Civil Engineering

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The size and position of the damping ditch have a direct impact on the blasting vibration. In order to explore the effect of damping ditches of different sizes and positions, we investigated field blasting in the A3 area of the second phase of the Lufeng Nuclear Power Plant project. The simulation software ANSYS/LS-DYNA was used to simulate the vibration propagation of damping ditches with different depths, widths, and positions. Secondly, the vibration data of the corresponding measuring points were collected and the amplitude reduction was analyzed in different situations. An analysis of the numerical simulation results showed that an increase in the damping ditch width increased the vibration amplitude at the top of the building. The depth and position of the damping ditch were the main factors affecting the damping performance. A regression analysis was conducted using the Sadove equation for vibration velocity. It was found that the regression coefficient of the Sadove equation did not meet the required standards when a damping ditch was present. The vibration attenuation equations were fitted for the top and the base of the building. The results of this study provide reference data for the excavation and arrangement of damping ditches in practical applications.

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“…In general, vibration reduction measures applied around or at a close distance from the vibration sources are defined as active measures, whereas those surrounding the buildings that are to be protected are defined as passive measures [7,10,11]. Literature review shows that active measures can significantly reduce the intensity of environmental vibrations and are more effective than passive measures, especially in reducing the magnitudes of low frequency vibrations [12][13][14][15]. However, due to cost problems and the uncertainty of vibration sources, passive measures are usually preferred to control unwanted vibrations at high-tech facilities [16].…”

Section: Introductionmentioning

confidence: 99%

Vibration Measurement and Prediction for Foundation Slab Design of a High-Tech Lab Based on In Situ Testing

Lou²,

Chen³

2020

Shock and Vibration

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Reduction of road traffic-induced vibrations has gained importance with rapid development of high-tech industry and nanotechnology. This study focuses on the in situ vibration measurement and transmissibility-based vibration prediction for the foundation slab design of a high-tech lab subjected to truck-induced vibrations. The truck-induced vibrations come from a proposed road 30 m away from the high-tech lab. The allowable vertical vibration velocity for the foundation slab of the high-tech lab was 60 μm/s in the frequency range of 5–50 Hz. The truck-induced ground vibrations in the proximity of an existing road with the same design as the proposed road were taken as the vibration source response used in the foundation design. The ground vibration transmissibility from the proposed road area to the high-tech lab area was determined by conducting frequency sweep tests in the free field. Based on the vibration source response and the ground vibration transmissibility, two antivibration foundation prototypes with different thicknesses were constructed at the site. The vibration transmissibility from the subgrade soil to the surfaces of the two foundation prototypes was obtained by measuring the ground vibrations at the high-tech lab area and the surface vibrations of the two foundation prototypes. The vertical vibration velocities of the two foundation prototypes were predicted based on the measured transmissibility and the vibration source response. The final thickness of the antivibration foundation was determined by comparing the predicted vibration velocities with the allowable vibration velocity. After construction of the high-tech lab and the road, vibration tests were conducted to assess the performance of the actual antivibration foundation. The results showed that the actual antivibration foundation was able to reduce the vibration levels at the high-tech lab to acceptable levels.

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Use of in-filled trenches to screen ground vibration due to impact pile driving: experimental and numerical study

Cited by 25 publications

References 23 publications

Performance of Open and In-Filled (Geofoam) Trenches in Mitigating Ground-Borne Vibrations Induced by Impact Loading

Performance of Open and In-Filled (Geofoam) Trenches in Mitigating Ground-Borne Vibrations Induced by Impact Loading

Effect of the Size and Position of a Damping Ditch on the Reduction of the Blasting Vibration

Vibration Measurement and Prediction for Foundation Slab Design of a High-Tech Lab Based on In Situ Testing

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