Analysis of the Tunneling Blast Safety Criterion Based on Longitudinal Shocks
In modern tunneling construction, the blasting seismic effect seriously threatens the safety and stability of the existing engineering construction. Meanwhile, due to the complexity of blasting loading, there is a very large difference from real blasting by using the sample triangle dynamic loading...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2023-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2023/2393030 |
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| _version_ | 1832546751813255168 |
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| author | Xiao Wang Wen-bo Zhao Hou-you Zhou Dian-shu Liu |
| author_facet | Xiao Wang Wen-bo Zhao Hou-you Zhou Dian-shu Liu |
| author_sort | Xiao Wang |
| collection | DOAJ |
| description | In modern tunneling construction, the blasting seismic effect seriously threatens the safety and stability of the existing engineering construction. Meanwhile, due to the complexity of blasting loading, there is a very large difference from real blasting by using the sample triangle dynamic loading model or trapezoid dynamic loading model to analyze the blasting vibration problem. In this paper, based on the analysis of the pressure change, volume expansion, fracture development, and blasting gas motion, an accurate blasting loading model was proposed. Then, adopting plane longitudinal shock theory, the coupled loading of multiple holes can be obtained. Subsequently, the 3D simulation analysis of the tunnel blasting shows an error of 2% compared with on-site monitoring data, meeting engineering requirements. Finally, based on the simulation results, regression prediction function of the velocity curve and effective tensile stress curve under different safety criteria are established, achieving accurate prediction of the damage degree of the host rock and liner line under different engineering requirements. |
| format | Article |
| id | doaj-art-9c4d452cf57b440680728c47f893f3f8 |
| institution | Kabale University |
| issn | 1875-9203 |
| language | English |
| publishDate | 2023-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-9c4d452cf57b440680728c47f893f3f82025-02-03T06:47:21ZengWileyShock and Vibration1875-92032023-01-01202310.1155/2023/2393030Analysis of the Tunneling Blast Safety Criterion Based on Longitudinal ShocksXiao Wang0Wen-bo Zhao1Hou-you Zhou2Dian-shu Liu3Department of Civil EngineeringDepartment of Civil EngineeringDepartment of Civil EngineeringDepartment of Civil EngineeringIn modern tunneling construction, the blasting seismic effect seriously threatens the safety and stability of the existing engineering construction. Meanwhile, due to the complexity of blasting loading, there is a very large difference from real blasting by using the sample triangle dynamic loading model or trapezoid dynamic loading model to analyze the blasting vibration problem. In this paper, based on the analysis of the pressure change, volume expansion, fracture development, and blasting gas motion, an accurate blasting loading model was proposed. Then, adopting plane longitudinal shock theory, the coupled loading of multiple holes can be obtained. Subsequently, the 3D simulation analysis of the tunnel blasting shows an error of 2% compared with on-site monitoring data, meeting engineering requirements. Finally, based on the simulation results, regression prediction function of the velocity curve and effective tensile stress curve under different safety criteria are established, achieving accurate prediction of the damage degree of the host rock and liner line under different engineering requirements.http://dx.doi.org/10.1155/2023/2393030 |
| spellingShingle | Xiao Wang Wen-bo Zhao Hou-you Zhou Dian-shu Liu Analysis of the Tunneling Blast Safety Criterion Based on Longitudinal Shocks Shock and Vibration |
| title | Analysis of the Tunneling Blast Safety Criterion Based on Longitudinal Shocks |
| title_full | Analysis of the Tunneling Blast Safety Criterion Based on Longitudinal Shocks |
| title_fullStr | Analysis of the Tunneling Blast Safety Criterion Based on Longitudinal Shocks |
| title_full_unstemmed | Analysis of the Tunneling Blast Safety Criterion Based on Longitudinal Shocks |
| title_short | Analysis of the Tunneling Blast Safety Criterion Based on Longitudinal Shocks |
| title_sort | analysis of the tunneling blast safety criterion based on longitudinal shocks |
| url | http://dx.doi.org/10.1155/2023/2393030 |
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