Dynamic Response of Buried Silo Caused by Underground Explosion

Kobielak, Sylwester; Krauthammer, Theodor

doi:10.1155/2004/507650

Cited by 7 publications

(6 citation statements)

References 12 publications

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“…Test results verified the blast-resistant effectiveness caused by the barrier composed of the cylindrical tubes [10]. The dynamic response of a buried silo caused by underground explosion was also studied experimentally via the measured pressures [11].…”

Section: Introductionmentioning

confidence: 63%

A Blast-Resistant Method Based on Wave Converters with Spring Oscillator for Underground Structures

Liu

Zhao

et al. 2017

Shock and Vibration

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Researches on blast-resistant measures for underground structures such as tunnels and underground shopping malls are of great importance for their significant role in economic and social development. In this paper, a new blast-resistant method based on wave converters with spring oscillator for underground structures was put forward, so as to convert the shock wave with high frequency and high peak pressure to the periodic stress wave with low frequency and low peak pressure. The conception and calculation process of this new method were introduced. The mechanical characteristics and motion evolution law of wave converters were deduced theoretically. Based on the theoretical deduction results and finite difference software FLAC 3D , the dynamic responses of the new blast-resistant structure and the traditional one were both calculated. Results showed that, after the deployment of wave converters, the peak absolute values of the bending moment, shear force, and axial force of the structure decreased generally, which verified the good blast-resistant effect of the new blast-resistant method.

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Section: Introductionmentioning

confidence: 63%

A Blast-Resistant Method Based on Wave Converters with Spring Oscillator for Underground Structures

Liu

Zhao

et al. 2017

Shock and Vibration

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“…Some researchers have investigated this effect on the response of the structure or the medium comparing the results obtained by different charge weights 14,28,35,51,78–85 . Some references investigated this issue experimentally 3–5,86–89 . Another case in which the charge weight is important is the crater size resulting from the surface explosions.…”

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

confidence: 99%

“…14,28,35,51,[78][79][80][81][82][83][84][85] Some references investigated this issue experimentally. [3][4][5][86][87][88][89] Another case in which the charge weight is important is the crater size resulting from the surface explosions. The empirical relations suggested for the diameter of a crater in terms of the charge weight can be used to validate numerical models and calibrate them.…”

Section: Explosive Charge Weightmentioning

confidence: 99%

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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“…It should be noted that the soil (Fig. 3) was undisturbed only in the first test, and its properties are given in [13].…”

Section: Tests Program and Sitementioning

confidence: 99%

Ground Shock Attenuation on a Buried Cylindrical Structure by a Barrier

Kobielak

Krauthammer²,

Walczak³

2006

Shock and Vibration

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This paper presents results from studies on the influence of an attenuation barrier on soil stresses and pressures acting on a buried silo, caused by underground explosions at different distances from the structure. The attenuation barrier was made of PVC tubes that were placed between the explosive charges and the RC silo structure. Soil stress gages and pressure transducers were used to measure these data in the soil and on the structure, respectively. The influences of several parameters were analyzed for tests with and without an attenuation barrier between the silo and the explosive sources.

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Dynamic Response of Buried Silo Caused by Underground Explosion

Cited by 7 publications

References 12 publications

A Blast-Resistant Method Based on Wave Converters with Spring Oscillator for Underground Structures

A Blast-Resistant Method Based on Wave Converters with Spring Oscillator for Underground Structures

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

Ground Shock Attenuation on a Buried Cylindrical Structure by a Barrier

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