Back to Search
Start Over
Prediction of Vibration Velocity of Bench Blasting Reflecting Negative Elevation Effect.
- Source :
- Geofluids; 2/3/2021, p1-12, 12p, 2 Diagrams, 3 Charts, 5 Graphs
- Publication Year :
- 2021
-
Abstract
- In the field of mine blasting practice, accurate prediction of blasting vibration is considered as a critical task. In accordance with the theory of elastic wave, the reflection of blasting vibration wave at the interface of negative elevation is analyzed in this paper. The negative elevation effect exerted by blasting vibration is interpreted considering the mechanism, and the formula of the blasting vibration prediction step (negative) V = K Q 1 / 3 / R α ⋅ 1 / H β is derived, reflecting the negative elevation effect. Besides, the formula accuracy is verified by the measured vibration velocity of the mass in the Jinou coal mine. The step (negative) formula acts as a more feasible candidate for the prediction of step blasting vibration. [ABSTRACT FROM AUTHOR]
- Subjects :
- ELASTIC waves
BLASTING
VELOCITY
BLAST waves
BLAST effect
COAL mining
Subjects
Details
- Language :
- English
- ISSN :
- 14688115
- Database :
- Complementary Index
- Journal :
- Geofluids
- Publication Type :
- Academic Journal
- Accession number :
- 148480063
- Full Text :
- https://doi.org/10.1155/2021/6662809