Study on Blasting Vibration Control of Brick-Concrete Structure under Subway Tunnel
In order to study the impact of the blasting vibration of subway tunnels on adjacent buildings, taking the tunnel mining method construction of the section between Zhifang Street Station and Metro Town Station of Wuhan Metro Line 27 as the engineering background, the blasting scheme is optimized by...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-10-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/21/10960 |
| _version_ | 1797469240767283200 |
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| author | Yangyong Wu Chaomin Mu Qi Zong Jiehao Wu Hui Zhou |
| author_facet | Yangyong Wu Chaomin Mu Qi Zong Jiehao Wu Hui Zhou |
| author_sort | Yangyong Wu |
| collection | DOAJ |
| description | In order to study the impact of the blasting vibration of subway tunnels on adjacent buildings, taking the tunnel mining method construction of the section between Zhifang Street Station and Metro Town Station of Wuhan Metro Line 27 as the engineering background, the blasting scheme is optimized by reducing the maximum single section charge, multi-section and densifying the surrounding holes. The HHT method and wavelet analysis are used to evaluate the advantages and disadvantages of the optimization scheme from the perspective of energy. The results show that the peak velocity of the blasting vibration is significantly reduced and the frequency is significantly increased after the blasting scheme is optimized. After the blasting scheme is optimized, when the working face is directly below the external wall of the building, the peak vibration velocity is the largest; from the back of the working face to the front of the working face, the peak velocity of the surface particle vibration first increases and then decreases. The frequency band of the optimized blasting vibration signal energy distribution is wider and the energy is more dispersed. This study can provide some practical experience for the design and construction of similar projects. |
| first_indexed | 2024-03-09T19:18:35Z |
| format | Article |
| id | doaj.art-e9d92cd1d8964e5bba1fdd65c78fb02b |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T19:18:35Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-e9d92cd1d8964e5bba1fdd65c78fb02b2023-11-24T03:35:41ZengMDPI AGApplied Sciences2076-34172022-10-0112211096010.3390/app122110960Study on Blasting Vibration Control of Brick-Concrete Structure under Subway TunnelYangyong Wu0Chaomin Mu1Qi Zong2Jiehao Wu3Hui Zhou4State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Huainan 232001, ChinaState Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Huainan 232001, ChinaSchool of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, ChinaSchool of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, ChinaState Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Huainan 232001, ChinaIn order to study the impact of the blasting vibration of subway tunnels on adjacent buildings, taking the tunnel mining method construction of the section between Zhifang Street Station and Metro Town Station of Wuhan Metro Line 27 as the engineering background, the blasting scheme is optimized by reducing the maximum single section charge, multi-section and densifying the surrounding holes. The HHT method and wavelet analysis are used to evaluate the advantages and disadvantages of the optimization scheme from the perspective of energy. The results show that the peak velocity of the blasting vibration is significantly reduced and the frequency is significantly increased after the blasting scheme is optimized. After the blasting scheme is optimized, when the working face is directly below the external wall of the building, the peak vibration velocity is the largest; from the back of the working face to the front of the working face, the peak velocity of the surface particle vibration first increases and then decreases. The frequency band of the optimized blasting vibration signal energy distribution is wider and the energy is more dispersed. This study can provide some practical experience for the design and construction of similar projects.https://www.mdpi.com/2076-3417/12/21/10960subway tunnelblasting vibrationenergy distributionHilbert–Huang Transform modelwavelet transform |
| spellingShingle | Yangyong Wu Chaomin Mu Qi Zong Jiehao Wu Hui Zhou Study on Blasting Vibration Control of Brick-Concrete Structure under Subway Tunnel Applied Sciences subway tunnel blasting vibration energy distribution Hilbert–Huang Transform model wavelet transform |
| title | Study on Blasting Vibration Control of Brick-Concrete Structure under Subway Tunnel |
| title_full | Study on Blasting Vibration Control of Brick-Concrete Structure under Subway Tunnel |
| title_fullStr | Study on Blasting Vibration Control of Brick-Concrete Structure under Subway Tunnel |
| title_full_unstemmed | Study on Blasting Vibration Control of Brick-Concrete Structure under Subway Tunnel |
| title_short | Study on Blasting Vibration Control of Brick-Concrete Structure under Subway Tunnel |
| title_sort | study on blasting vibration control of brick concrete structure under subway tunnel |
| topic | subway tunnel blasting vibration energy distribution Hilbert–Huang Transform model wavelet transform |
| url | https://www.mdpi.com/2076-3417/12/21/10960 |
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