Effect of Soft Interlayer Dip Angle on the Attenuation and Prediction of Blast-Induced Vibrations in Rock Slopes: An Experimental Study
Rock slopes containing weak interlayers are highly prone to instability under the disturbance of blasting vibrations due to the influence of structural planes. To address the limitations of traditional models in predicting vibration attenuation for such slopes, this study conducted in situ blasting...
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MDPI AG
2025-06-01
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| Online Access: | https://www.mdpi.com/2076-3417/15/12/6683 |
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| author | Sheng Chen Nan Jiang Ying Sun Jian Pan Liping He Jianxiong Guo Jikui Zhang Zicheng Zhang |
| author_facet | Sheng Chen Nan Jiang Ying Sun Jian Pan Liping He Jianxiong Guo Jikui Zhang Zicheng Zhang |
| author_sort | Sheng Chen |
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| description | Rock slopes containing weak interlayers are highly prone to instability under the disturbance of blasting vibrations due to the influence of structural planes. To address the limitations of traditional models in predicting vibration attenuation for such slopes, this study conducted in situ blasting tests on sand–mudstone interbedded slopes from the Pinglu Canal project. Based on dimensional analysis, the Sadowsky formula was modified to incorporate both elevation difference (<i>H</i>/<i>R</i>) and soft interlayer dip angle (<i>θ</i>), resulting in an enhanced predictive model. Field data revealed that the proposed model significantly improved prediction accuracy, with determination coefficients (<i>r</i><sup>2</sup>) increasing from 0.847 to 0.9946 in the vertical (Z) direction. Compared to traditional models, the root mean square error (RMSE) decreased by 96%, demonstrating superior capability in capturing vibration attenuation influenced by geological heterogeneity. Key findings reveal that steeper interlayer dip angles significantly accelerate PPV attenuation, particularly in the X direction. These findings provide a critical tool for optimizing blasting parameters in layered rock slopes, effectively mitigating collapse risks and enhancing construction safety. The model’s practicality was validated through its application in the Pinglu Canal project, offering a paradigm for similar engineering challenges in complex geological settings. |
| format | Article |
| id | doaj-art-1ed7ce7eb59f4a03902ee97a8cb5fe1c |
| institution | Kabale University |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
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| series | Applied Sciences |
| spelling | doaj-art-1ed7ce7eb59f4a03902ee97a8cb5fe1c2025-08-20T03:26:10ZengMDPI AGApplied Sciences2076-34172025-06-011512668310.3390/app15126683Effect of Soft Interlayer Dip Angle on the Attenuation and Prediction of Blast-Induced Vibrations in Rock Slopes: An Experimental StudySheng Chen0Nan Jiang1Ying Sun2Jian Pan3Liping He4Jianxiong Guo5Jikui Zhang6Zicheng Zhang7CCCC Fourth Harbor Engineering Institute Co., Ltd., Guangzhou 510230, ChinaState Key Laboratory of Precision Blasting, Jianghan University, Wuhan 430056, ChinaCCCC Key Laboratory of Environment Protection and Safety in Foundation Engineering of Transportation, Guangzhou 510230, ChinaGuangxi Pinglu Canal Construction Co., Ltd., Qinzhou 535000, ChinaCCCC Fourth Harbor Engineering Bureau Co., Ltd., Guangzhou 510290, ChinaCCCC Fourth Harbor Engineering Institute Co., Ltd., Guangzhou 510230, ChinaFaculty of Engineering, China University of Geosciences, Wuhan 430074, ChinaFaculty of Engineering, China University of Geosciences, Wuhan 430074, ChinaRock slopes containing weak interlayers are highly prone to instability under the disturbance of blasting vibrations due to the influence of structural planes. To address the limitations of traditional models in predicting vibration attenuation for such slopes, this study conducted in situ blasting tests on sand–mudstone interbedded slopes from the Pinglu Canal project. Based on dimensional analysis, the Sadowsky formula was modified to incorporate both elevation difference (<i>H</i>/<i>R</i>) and soft interlayer dip angle (<i>θ</i>), resulting in an enhanced predictive model. Field data revealed that the proposed model significantly improved prediction accuracy, with determination coefficients (<i>r</i><sup>2</sup>) increasing from 0.847 to 0.9946 in the vertical (Z) direction. Compared to traditional models, the root mean square error (RMSE) decreased by 96%, demonstrating superior capability in capturing vibration attenuation influenced by geological heterogeneity. Key findings reveal that steeper interlayer dip angles significantly accelerate PPV attenuation, particularly in the X direction. These findings provide a critical tool for optimizing blasting parameters in layered rock slopes, effectively mitigating collapse risks and enhancing construction safety. The model’s practicality was validated through its application in the Pinglu Canal project, offering a paradigm for similar engineering challenges in complex geological settings.https://www.mdpi.com/2076-3417/15/12/6683blasting vibrationrock slopeattenuationsoft interlayer |
| spellingShingle | Sheng Chen Nan Jiang Ying Sun Jian Pan Liping He Jianxiong Guo Jikui Zhang Zicheng Zhang Effect of Soft Interlayer Dip Angle on the Attenuation and Prediction of Blast-Induced Vibrations in Rock Slopes: An Experimental Study Applied Sciences blasting vibration rock slope attenuation soft interlayer |
| title | Effect of Soft Interlayer Dip Angle on the Attenuation and Prediction of Blast-Induced Vibrations in Rock Slopes: An Experimental Study |
| title_full | Effect of Soft Interlayer Dip Angle on the Attenuation and Prediction of Blast-Induced Vibrations in Rock Slopes: An Experimental Study |
| title_fullStr | Effect of Soft Interlayer Dip Angle on the Attenuation and Prediction of Blast-Induced Vibrations in Rock Slopes: An Experimental Study |
| title_full_unstemmed | Effect of Soft Interlayer Dip Angle on the Attenuation and Prediction of Blast-Induced Vibrations in Rock Slopes: An Experimental Study |
| title_short | Effect of Soft Interlayer Dip Angle on the Attenuation and Prediction of Blast-Induced Vibrations in Rock Slopes: An Experimental Study |
| title_sort | effect of soft interlayer dip angle on the attenuation and prediction of blast induced vibrations in rock slopes an experimental study |
| topic | blasting vibration rock slope attenuation soft interlayer |
| url | https://www.mdpi.com/2076-3417/15/12/6683 |
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