Anti-explosion performance analysis of marine interdiction system based on ALE method

Liu, Zeping; Li, Hong; Li, Li

doi:10.1016/j.heliyon.2023.e13873

Cited by 1 publication

(1 citation statement)

References 14 publications

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“…According to the above model establishing a method of the numerical simulation test, the double-hole model of layered rock mass under high-pressure gas blasting is established. Some material parameters of layered rock mass are shown in Table 8 [27]. In this paper, the piecewise exponential model of hole wall pressure is adopted, which was fitted by our team based on multiple experimental tests of hole wall pressure under high-pressure gas impact.…”

Section: Analysis Of the Blasting Vibration Characteristics Of Layere...mentioning

confidence: 99%

The Blasting Vibration Characteristics of Layered Rock Mass under High-Pressure Gas Impact

Wei,

Li,

Zhu

et al. 2023

Energies

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Firstly, the experimental test of blasting vibration was carried out to study the propagation characteristics of the peak particle velocity (PPV) and dominant frequency (DF) of the blasting vibration of layered rock mass under high-pressure gas impact. The test results show that the PPV and DF of blasting vibration of layered rock mass decrease gradually with the increase in distance from the explosion source. The PPV and DF of layered rock mass under the same impact pressure of high-pressure gas are lower than those of single rock mass at the same measuring points. With the increase in hole spacing, the PPV and DF of blasting vibration become smaller, and the blasting effect first becomes better and then worse. Next, the relationship models between the PPV and DF and their influencing factors were deduced by the dimensional analysis method, which can be simplified as exponential forms that decay with the scaled distance. In addition, through a numerical simulation test, it was found that the optimal hole spacing recommended in an excavation example of an underground pipe gallery is 100 cm. Finally, the blasting vibration effects under the two excavation methods of high-pressure gas impact and explosive blasting were numerically simulated and compared. The results indicate that high-pressure gas impact can significantly reduce the blasting vibration effect of layered rock mass compared with explosive blasting. This study has important theoretical guiding significance and practical value for revealing the propagation law, forecasting and controlling the harm of blasting vibration effect of layered rock mass caused by high-pressure gas impact.

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Section: Analysis Of the Blasting Vibration Characteristics Of Layere...mentioning

confidence: 99%

The Blasting Vibration Characteristics of Layered Rock Mass under High-Pressure Gas Impact

Wei,

Li,

Zhu

et al. 2023

Energies

View full text Add to dashboard Cite

show abstract

Anti-explosion performance analysis of marine interdiction system based on ALE method

Cited by 1 publication

References 14 publications

The Blasting Vibration Characteristics of Layered Rock Mass under High-Pressure Gas Impact

The Blasting Vibration Characteristics of Layered Rock Mass under High-Pressure Gas Impact

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