Ground vibrations produced by surface and near-surface explosions

Albert, Donald G.; Taherzadeh, Shahram; Attenborough, Keith; Boulanger, Patrice; Decato, Stephen N.

doi:10.1016/j.apacoust.2013.03.006

Cited by 39 publications

(17 citation statements)

References 49 publications

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“…Amongst others, Buser (1986), Attenborough and Buser (1988), Marco and others (1996, 1998) and Maysenhölder and others (2012) investigated acoustic impedance and attenuation of snow based on the so-called ‘rigid-frame’ model (Terzaghi, 1923; Zwikker and Kosten, 1947) in which the wave traveling in the pore space is completely decoupled from the wave traveling in the frame of the porous material. Recently, acoustic methods have been used to monitor and spatially locate avalanches (Surinach and others, 2000; Van Herwijnen and Schweizer, 2011; Lacroix and others, 2012), to estimate the height and sound absorption of snow covering ground (Albert, 2001; Albert and others, 2009, 2013) and to estimate the snow water equivalent of dry snowpacks (Kinar and Pomeroy, 2009). Kapil and others (2014) used metallic waveguides to measure acoustic emissions from deforming snowpacks.…”

Section: Introductionmentioning

confidence: 99%

A porosity-based Biot model for acoustic waves in snow

Sidler

2015

J. Glaciol.

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ABSTRACT. Phase velocities and attenuation in snow can not be explained by the widely used elastic or viscoelastic models for acoustic wave propagation. Instead, Biot's model of wave propagation in porous materials should be used. However, the application of Biot's model is complicated by the large property space of the underlying porous material. Here the properties of ice and air as well as empirical relationships are used to define the properties of snow as a function of porosity. Based on these relations, phase velocities and plane wave attenuation of shear-and compressional-waves as functions of porosity or density are predicted. For light snow the peculiarity was found that the velocity of the first compressional wave is lower than the second compressional wave that is commonly referred to as the "slow" wave. The reversal of the velocities comes with an increase of attenuation for the first compressional wave. This is in line with the common observation that sound is strongly absorbed in light snow. The results have important implications for the use of acoustic waves to evaluate snow properties and to numerically simulate wave propagation in snow.

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Section: Introductionmentioning

confidence: 99%

A porosity-based Biot model for acoustic waves in snow

Sidler

2015

J. Glaciol.

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“…Therefore, research about injuries and deaths is carried out in two situations with or without shelters. The overpressure criterion of body damage and the ones with or without shelters is combined, as shown in Table 6 15 …”

Section: Phast Simulationmentioning

confidence: 99%

Quantitative analysis of enclosed ground flare based on PHAST analysis

Kong²,

Wei

et al. 2020

Heat Trans

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Despite the rapid development of the petrochemical industry, it is overly characterized by complication and integration. The requirements of safety technologies and facilities in the process are increasingly high. As one of the important safety facilities, the flare is indispensable in the petrochemical industry. In recent years, the ground flare has been further applied because of its advantages in low radiation and low pollution. However, as it has been introduced and used in China for a short time, the theoretical basis for its safety application is not strong. In view of this point, after the abnormal leakage, relevant data of the enclosed ground flare are obtained, so as to identify the diffusion and thermal radiation hazards. Meanwhile, quantitative analysis is conducted. The process hazard analysis software is used in the analysis and exploration by taking the enclosed ground flare used in chemical plants as an example. By establishing different accident models, the scopes of influence of fire explosion after the abnormal leakage of the enclosed ground flare are obtained. Data for quantitative analysis are also acquired. It will be an important reference for safely designing and applying the enclosed ground flare and formulating an emergency plan for safety production.

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“…In the literature, many recent experimental and theoretical studies aimed at characterizing the vibratory phenomena caused by traffic, construction activities, explosions and their effects on buildings can be found, as reported in Refs. [3][4][5][6][7][8]. More specifically, several researchers studied the effects that external sources of vibration may produce on historical buildings that represent a significant architectural heritage.…”

Section: Traffic Vibrations and Historical Buildingsmentioning

confidence: 99%

Impact of traffic vibration on the temple of minerva medica, rome: preliminary study within the co.b.ra. project

Roselli¹,

Fioriti²,

Bellagamba³

et al. 2017

Int. J. HA

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The impact of long-term traffic vibration on ancient structures located in the city centre of big cities is an important issue, as it represents the main factor of fatigue, possibly causing structural damage in historic constructions. This article illustrates the preliminary results of a study on the so-called Temple of Minerva Medica in Rome, Italy, conducted within the CO.B.RA. project, which focuses on the development of advanced technologies and methods for the conservation of cultural heritage assets. The studied monument, which is part of the architectural heritage of ancient Rome, is located very close to several railway tracks just out of the Termini train station, on the northeast side, and to urban tramways, on the west side. To obtain indications on the dynamic behaviour of the structure and to map the base excitation induced by passing trains and trams, ambient vibration data were acquired by digital recorders with triaxial velocimeters positioned at several measurement points on the ground, around and inside the structure, and at different heights on the northwest façade. For evaluating the structural vulnerability, three-dimensional (3D) architectural surveys and non-destructive investigations on the material properties of the monument were conducted in order to implement a finite element model of the building to be used for structural analyses and dynamic simulations. In particular, to the purpose of obtaining a detailed 3D model, laser scanner and stereo-photogrammetric acquisitions were carried out. Photographic acquisitions were also used to identify the crack pattern and to document the current state of damage. Vibration and 3D reconstruction data were acquired both in summer and in winter, along with thermographic images, for assessing the seasonal effects on the structural behaviour. All collected data were stored into an ad hoc friendly data repository accessible through the internet by the accredited project end-users.

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Ground vibrations produced by surface and near-surface explosions

Cited by 39 publications

References 49 publications

A porosity-based Biot model for acoustic waves in snow

A porosity-based Biot model for acoustic waves in snow

Quantitative analysis of enclosed ground flare based on PHAST analysis

Impact of traffic vibration on the temple of minerva medica, rome: preliminary study within the co.b.ra. project

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