Prediction of Rock Damage Depth Using Blasting Vibration Monitoring
This study conducted vibration monitoring and acoustic testing on rock slopes subjected to blasting operations within the elevation range of 988.0–898.0 m at the left bank abutment slot of the Wudongde Hydropower Station. Systematic investigations were performed on the vibration attenuation patterns...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2025-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/vib/9894956 |
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| Summary: | This study conducted vibration monitoring and acoustic testing on rock slopes subjected to blasting operations within the elevation range of 988.0–898.0 m at the left bank abutment slot of the Wudongde Hydropower Station. Systematic investigations were performed on the vibration attenuation patterns across nine excavation benches. By incorporating elevation parameters, a regression-based correlation was established between distance-dependent peak particle velocity (PPV) measurements and the depth of rock mass damage, thereby facilitating predictive assessments of structural deterioration. The analysis revealed that in slopes characterized by homogeneous lithology and an absence of significant structural discontinuities, PPV induced by bench presplit blasting exhibited a strong exponential correlation with the depth of retaining rock mass damage. Validation of the proposed exponential model demonstrated prediction errors of 9.43% for maximum damage depth and 8.70% for average values when compared with field measurements. The close alignment between predicted and observed data confirms the reliability of this model for estimating blast-induced rock damage, providing an effective alternative to extensive acoustic testing programs in large-scale slope engineering projects. |
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| ISSN: | 1875-9203 |