The Detection of Vertical Cracks in Asphalt Using Seismic Surface Wave Methods

Iodice, Michele; Muggleton, J.M.; Rustighi, Emiliano

doi:10.1088/1742-6596/744/1/012059

Cited by 6 publications

(5 citation statements)

References 12 publications

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“…Noise sources, such as body waves and re ected or scattered waves, may be ltered out more quickly, resulting in a more accurate Vs pro le than alternative surface wave approaches (Coe et al, 2021). When using MASW to calculate the shear wave velocity pro le, the soil is often considered to be an isotropic, horizontally layered model with no lateral variation in elastic characteristics (Iodice et al, 2016). By evaluating the dispersive nature of the recorded surface waves, all surface wave algorithms attempt to determine the features of the subsurface (Coe et al, 2021).…”

Section: Theory and Methodologymentioning

confidence: 99%

Dynamic Soil Properties for Construction Site Investigation Using Geophysical Methods

Bello

Muztaza

Zakaria

et al. 2023

Preprint

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Geophysical approaches are used for site characterization to determine the dynamic behaviour of soil. Structures built on a site without sufficient assessment are prone to collapse or failure. Thus, before beginning any building activity, it is critical to assess the soil dynamic qualities. This is significant because buildings are constructed on top of the ground surface, supported by the underlying soil and rock. This work aimed to determine a competent layer for building foundations. This study was conducted to evaluate the dynamic soil behaviour of Paya Terubong on Penang Island. Resistivity, Young's modulus, shear modulus, Poisson's ratio, bulk modulus, bulk density, rippability, and material bearing capacity are among the parameters utilised for the characterization. This will be obtained from the electrical resistivity, seismic refraction, and MASW methods. Three layers were detected by these methods. Results from the study indicate that the area is mostly composed of highly dense silty sand and granitic bedrock, which makes it competent for foundation construction since higher compaction raises the ultimate and allowable bearing capacities of the third layer to very high levels. In addition, soil and rock layers identified using geophysical methods match well with the borehole data showing that material stiffness increases with depth. Rippable layers extend from the ground surface to a depth of 3 meters. The calculated values gotten from the soil dynamic properties and material bearing capacity show that the second and third layers have good geotechnical qualities. The ultimate bearing capacities calculated for the first layer range from 453 to 731 kPa, while the second layer capacities range from 1041 to 1691 kPa, and capacities for the third layer range from 2013 to 3650 kPa. For setting up structures, the second layer can support building foundations at a depth of 4 meters from the existing ground level. This approach is cost-effective, saves time, and is non-destructive for site characterization.

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Section: Theory and Methodologymentioning

confidence: 99%

Dynamic Soil Properties for Construction Site Investigation Using Geophysical Methods

Bello

Muztaza

Zakaria

et al. 2023

Preprint

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“…Since the wave velocities are larger in models B, C and D, a different sampling frequency is chosen to respect the Courant-Friedrichs-Lewy condition (see section 3). Mechanical parameters, density and damping ratios have been chosen to be close to typical values of soils and asphalts, and are similar to those used in [22], [23], [30], [50]. The reflection coefficient is computed, for all the simulations, as the amplitude ratio of the negative going wave to the positive going wave at the reference node.…”

Section: Numerical Investigationmentioning

confidence: 99%

“…Wave transmission, reflection and attenuation spectral ratios are often exploited by various authors for detection and sizing of surface discontinuities [7], [14], [24]- [27] , exploiting the resonant features of surface-breaking cracks. Spectral analysis of acoustic emission is also exploited by many for crack evaluation and localization [22]- [24], [28]- [30] . The use of the frequency-wavenumber spectral images, sometimes combined with the power spectral density, obtained from an array of sensors both numerically and experimentally, proved to be a successful tool for the assessment of the crack depth, but inaccurate for its location, [24], [28], [30] .…”

Section: Introductionmentioning

confidence: 99%

“…Spectral analysis of acoustic emission is also exploited by many for crack evaluation and localization [22]- [24], [28]- [30] . The use of the frequency-wavenumber spectral images, sometimes combined with the power spectral density, obtained from an array of sensors both numerically and experimentally, proved to be a successful tool for the assessment of the crack depth, but inaccurate for its location, [24], [28], [30] . A time-frequency analysis of the acoustic emission, based on the wavelet transform, is also exploited numerically for big anomalies detection in layered media [22] , and for cracks detection in laboratory specimens [29] .…”

Section: Introductionmentioning

confidence: 99%

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Thein-situevaluation of surface-breaking cracks in asphalt using a wave decomposition method

Iodice

Muggleton

Rustighi

2020

Nondestructive Testing and Evaluation

Self Cite

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Assessment of the location and extension of cracking in road surfaces is important for determining the potential level of deterioration in the road and in the infrastructure buried beneath it. Damage in a pavement structure is usually initiated in the asphalt layers, making the Rayleigh wave ideally suited to the detection of shallow surface defects. However, the practical application of crack detection methods in asphalt is hampered by the dispersive behaviour of the road pavement. In fact, assessment of crack in road is usually performed assuming constant phase velocity, and its dispersive behaviour is neglected. Moreover, current methodologies for crack evaluation in asphalt do not support in-situ applications. A new digital signal processing technique for the measurement of the amplitude and phase of the direct and reflected Rayleigh waves, scattered from the boundaries of a vertical crack in asphalt, is presented in this paper for the first time. It decomposes the signal into its in-situ crack evaluation of roads, for which the road is holistically treated as a dispersive medium.

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“…First, finite element simulations were performed to define the conditions for Rayleigh wave propagation in members with rectangular cross-section followed by an experimental study of a concrete beam [11][12][13]. Also, the vertical cracks in asphalt layers were detected using Rayleigh waves [14].…”

Section: Introductionmentioning

confidence: 99%

Determination of Surface and Sub-Surface Cracks Location in Beams Using Rayleigh-Waves

Eraky¹,

Samir²,

El-Deeb³

et al. 2018

PIER C

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Abstract-Structural buildings are vulnerable to many types of damages that can occur through their life period. These damages may cause structure failure or at least decrease its efficiency. Dangerous damages occurring in concrete structures are surface opening cracks or sub-surface cracks. So, the determination of location of these cracks is very important, because the crack location is one of the important factors that affect the degree of danger of the damage. The Rayleigh waves have many advantages, as they can be easily recognized due to the maximum energy of the wave components. So, it was used to determine the crack location in the previous works. In this paper, two different techniques are used to determine the crack location; one of them depends on the healthy case, and the other deals only with the cracked case. Common finite element software (Abaqus) is used to model the numerical simulation, and the experimental test is also performed to verify the obtained numerical results. Good agreement between the simulated and experimental results is obtained by employing both techniques to find the crack location.

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The Detection of Vertical Cracks in Asphalt Using Seismic Surface Wave Methods

Cited by 6 publications

References 12 publications

Dynamic Soil Properties for Construction Site Investigation Using Geophysical Methods

Dynamic Soil Properties for Construction Site Investigation Using Geophysical Methods

Thein-situevaluation of surface-breaking cracks in asphalt using a wave decomposition method

Determination of Surface and Sub-Surface Cracks Location in Beams Using Rayleigh-Waves

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