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Research on the attenuation law of blasting vibration in tunnel engineering

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Arabian Journal of Geosciences Aims and scope Submit manuscript

Abstract

To accurately predict the attenuation law of the blasting vibration velocity, the concept of equivalent radius (rd) is introduced based on Heelan short column charge theory. The attenuation model equation of the peak blasting vibration velocity under the action of the internal instantaneous excitation load is obtained and verified by dimensional analysis. Combined with an example of tunnel blasting engineering, the attenuation law of blasting vibration velocity is studied. In addition, the improved formula under the conditions of spherical charge and cylindrical charge is discussed. The comparison results show that the effect of fitting analysis obtained by the improved formula is the best and can provide a reference for similar blasting projects.

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Funding

The work described in this paper is supported by the National Natural Science Foundation of China (number: 51878242) and the Natural Science Foundation of Hebei Province (number: E2020404007).

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Correspondence to Yan Zhao.

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The authors declare no competing interests.

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Responsible Editor: Longjun Dong

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Shan, R., Zhao, Y., Wang, H. et al. Research on the attenuation law of blasting vibration in tunnel engineering. Arab J Geosci 15, 631 (2022). https://doi.org/10.1007/s12517-022-09899-2

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  • DOI: https://doi.org/10.1007/s12517-022-09899-2

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