| Autor: |
Shan, Renliang, Zhao, Yan, Wang, Hailong, Dong, Jie, Wang, Dongsheng |
| Zdroj: |
Arabian Journal of Geosciences; Apr2022, Vol. 15 Issue 7, p1-10, 10p |
| Abstrakt: |
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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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