Re-examination of the shock wave’s peak pressure attenuation in soils

Yankelevsky, David Z.; Karinski, Y.S.; Feldgun, V.R.

doi:10.1016/j.ijimpeng.2011.05.011

Cited by 32 publications

(7 citation statements)

References 41 publications

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“…It should be noted that theoretically, the value of the attenuation coefficient cannot be less than unity 45 . Some references argue that the attenuation coefficient is not constant for different scaled distances; therefore, they propose other fitting relations than the abovementioned equations 46–48 . The second point from Table 1 is that the attenuation coefficient and the acoustic impedance have opposite trends with the denseness or compaction of the soils in this table.…”

Section: Effective Parameters Of External Explosion Loads On Buried S...mentioning

confidence: 90%

Simulating the response of buried structures to external blast loads: Methods, challenges, and advances

Mohammadi

Khalilpour

Sareh

2022

Engineering Reports

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Various methods have been proposed to ensure the serviceability of buried structures such as road tunnels, urban utility tunnels, water conduits, underground shelters, and deposition chambers against extreme loads, the most common of which are experimental and computational methods. An external explosion in the vicinity of such structures is one of these extreme loads. In general, different types of external blasting for buried structures can be classified as surface blasting, coupled or uncoupled buried explosions, excavation by drilling and blasting near the structure, and the accidental detonation of explosive depositions. Laboratory or field tests for explosions are usually limited by financial and safety constraints; therefore, numerical simulations are often regarded as a vital tool in the study of such problems. Though computer software and hardware have improved rapidly in recent decades, and various numerical solvers have been developed, there is no universal method for solving all external explosion problems. Each numerical method can produce sensible results under certain conditions and assumptions, along with its limitations in computational cost. Consequently, these problems have been particularly difficult to investigate, and even in some cases, the results of different studies seem to be inconsistent. Besides providing an extensive review of the available literature in the field of numerical simulation of external explosions near buried structures and a discussion of the damage criteria associated with such explosions, this study also highlights some inconsistencies that may need further investigation.

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Section: Effective Parameters Of External Explosion Loads On Buried S...mentioning

confidence: 90%

Simulating the response of buried structures to external blast loads: Methods, challenges, and advances

Mohammadi

Khalilpour

Sareh

2022

Engineering Reports

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“…The pressure induced by blast wave propagation in a soil medium is different from the incident pressure. Many studies have investigated the blast-induced vibration parameters for a soil medium [4][5][6]. The peak pressure in different soil types can be obtained by Equations ( 5) and ( 6) [15].…”

Section: Blast Loadingmentioning

confidence: 99%

“…A surface explosion can cause damage to underground structures; therefore, soil behavior must be evaluated under explosion hazards so that we may be able to create a blast-resistant design for these structures [1][2][3]. Blast-induced vibration parameters have received attention from many researchers [4][5][6]; amongst the findings is that peak blast pressure is the most critical parameter for underground structures [7][8][9]. This parameter is directly related to peak particle velocity, with different empirical equations defining them [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Sand–Tire Shred Mixture Performance in Controlling Surface Explosion Hazards That Affect Underground Structures

et al. 2021

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Blasting is an unavoidable activity in geotechnical engineering, road and tunnel construction, and mining and quarrying. However, this activity can expose the environment to various hazards that are challenging to control and, at the same time, critical for the safety of site workers, equipment, and surrounding structures. This research aims to evaluate the ability of sand–tire shred mixtures to reduce peak blast pressure, which is the leading cause of damage to underground structures under surface explosion. ABAQUS software is used to model the material behavior under explosion and is validated using the results of previous studies and an empirical equation. Different scenarios are created by using mixture layers with different thicknesses (2, 4, and 6 m) and tire shred contents (10%, 20%, and 30%) that are subjected to various surface explosion charges (100, 500, 1000, and 5000 kg). The thickness of the mixture layer is found to be directly related to the dissipation of explosion energy. However, the percentage of the rubber content in the mixture is only significant in reducing peak blast pressure when a thick enough mixture layer is used. The results confirm the adequate performance of the correctly chosen sand–tire shred mixtures in reducing peak blast pressure and protecting the underground structure from surface explosion hazards.

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“…For relatively short distances from the explosion source, high pressures are developed, soil might exhibit a strain hardening behavior under this increased level of pressure. Empirical power law equations [5,6] that is used to describe the magnitude of peak over pressure as a function of distance as shown below…”

Section: Pressure Calculationmentioning

confidence: 99%

Numerical Simulation of Blast Wave Propagation in Layered Soil Featuring Soil-Structure Interaction

Arumugam¹,

Sekaran²,

Subash³

2017

Proceedings of the 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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Re-examination of the shock wave’s peak pressure attenuation in soils

Cited by 32 publications

References 41 publications

Simulating the response of buried structures to external blast loads: Methods, challenges, and advances

Simulating the response of buried structures to external blast loads: Methods, challenges, and advances

Sand–Tire Shred Mixture Performance in Controlling Surface Explosion Hazards That Affect Underground Structures

Numerical Simulation of Blast Wave Propagation in Layered Soil Featuring Soil-Structure Interaction

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