Study on blast-induced ground vibration velocity limits for slope rock masses
Seismic waves induced by blasting can cause damage to slope rock masses and thus lower the stability of the slope. The vibration standards of many countries do not specify the allowable blasting vibration velocity for slope rock masses. “Blasting Safety Regulations” (GB 6722-2014) in China recommend...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-01-01
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| Series: | Frontiers in Earth Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/feart.2022.1098630/full |
| _version_ | 1828067384163827712 |
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| author | Jinshan Sun Jinshan Sun Yongsheng Jia Yongsheng Jia Zhen Zhang Zhen Zhang Yingkang Yao Yingkang Yao |
| author_facet | Jinshan Sun Jinshan Sun Yongsheng Jia Yongsheng Jia Zhen Zhang Zhen Zhang Yingkang Yao Yingkang Yao |
| author_sort | Jinshan Sun |
| collection | DOAJ |
| description | Seismic waves induced by blasting can cause damage to slope rock masses and thus lower the stability of the slope. The vibration standards of many countries do not specify the allowable blasting vibration velocity for slope rock masses. “Blasting Safety Regulations” (GB 6722-2014) in China recommends the allowable blasting vibration velocity of slope rock masses. However, the strength of rock mass and geometric characteristics of slope are not considered in the criterion. Therefore, based on the wave equation of Rayleigh wave, the mathematical relationship between the additional dynamic stress of the rock mass near the slope surface and the peak particle velocity (PPV) on the ground is analyzed. Under the control conditions that no tensile and shear damage occur in the slope, a calculation method of allowable blasting vibration based on a simple slope model is proposed, in which the strength of rock mass and the angle of the slope are considered. The theoretical basis of the proposed method is verified by numerical experiments. Based on the field test results of the slope of Xiaowan Hydropower Station, the proposed method was verified further. The damage control target of the rock mass determined by the proposed method was in good agreement with the actual damage detection result. |
| first_indexed | 2024-04-10T23:44:49Z |
| format | Article |
| id | doaj.art-7b84abffd5114af487c139013deb80f4 |
| institution | Directory Open Access Journal |
| issn | 2296-6463 |
| language | English |
| last_indexed | 2024-04-10T23:44:49Z |
| publishDate | 2023-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Earth Science |
| spelling | doaj.art-7b84abffd5114af487c139013deb80f42023-01-11T04:53:41ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632023-01-011010.3389/feart.2022.10986301098630Study on blast-induced ground vibration velocity limits for slope rock massesJinshan Sun0Jinshan Sun1Yongsheng Jia2Yongsheng Jia3Zhen Zhang4Zhen Zhang5Yingkang Yao6Yingkang Yao7State Key Laboratory of Precision Blasting, Jianghan University, Wuhan, ChinaHubei Key Laboratory of Blasting Engineering, Jianghan University, Wuhan, ChinaState Key Laboratory of Precision Blasting, Jianghan University, Wuhan, ChinaHubei Key Laboratory of Blasting Engineering, Jianghan University, Wuhan, ChinaState Key Laboratory of Precision Blasting, Jianghan University, Wuhan, ChinaHubei Key Laboratory of Blasting Engineering, Jianghan University, Wuhan, ChinaState Key Laboratory of Precision Blasting, Jianghan University, Wuhan, ChinaHubei Key Laboratory of Blasting Engineering, Jianghan University, Wuhan, ChinaSeismic waves induced by blasting can cause damage to slope rock masses and thus lower the stability of the slope. The vibration standards of many countries do not specify the allowable blasting vibration velocity for slope rock masses. “Blasting Safety Regulations” (GB 6722-2014) in China recommends the allowable blasting vibration velocity of slope rock masses. However, the strength of rock mass and geometric characteristics of slope are not considered in the criterion. Therefore, based on the wave equation of Rayleigh wave, the mathematical relationship between the additional dynamic stress of the rock mass near the slope surface and the peak particle velocity (PPV) on the ground is analyzed. Under the control conditions that no tensile and shear damage occur in the slope, a calculation method of allowable blasting vibration based on a simple slope model is proposed, in which the strength of rock mass and the angle of the slope are considered. The theoretical basis of the proposed method is verified by numerical experiments. Based on the field test results of the slope of Xiaowan Hydropower Station, the proposed method was verified further. The damage control target of the rock mass determined by the proposed method was in good agreement with the actual damage detection result.https://www.frontiersin.org/articles/10.3389/feart.2022.1098630/fullslopeblastingRayleigh wavedynamic stressdamagevibration limit |
| spellingShingle | Jinshan Sun Jinshan Sun Yongsheng Jia Yongsheng Jia Zhen Zhang Zhen Zhang Yingkang Yao Yingkang Yao Study on blast-induced ground vibration velocity limits for slope rock masses Frontiers in Earth Science slope blasting Rayleigh wave dynamic stress damage vibration limit |
| title | Study on blast-induced ground vibration velocity limits for slope rock masses |
| title_full | Study on blast-induced ground vibration velocity limits for slope rock masses |
| title_fullStr | Study on blast-induced ground vibration velocity limits for slope rock masses |
| title_full_unstemmed | Study on blast-induced ground vibration velocity limits for slope rock masses |
| title_short | Study on blast-induced ground vibration velocity limits for slope rock masses |
| title_sort | study on blast induced ground vibration velocity limits for slope rock masses |
| topic | slope blasting Rayleigh wave dynamic stress damage vibration limit |
| url | https://www.frontiersin.org/articles/10.3389/feart.2022.1098630/full |
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