Analysis of Microtremor Exploration Application and Construction Monitoring in a Large-Diameter Shield Tunnel
In recent years, shield tunneling has shown many advantages with the development of underground rail traffic. Geological exploration plays a significant role in tunnel engineering, and detailed geological exploration results can guide the successful construction of a tunnel. This research relies on...
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| Format: | Article |
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MDPI AG
2022-12-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/1/263 |
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| author | Zhe Wang Jianchao Sheng Rui Wang Xibin Li Yuanjie Xiao Zihao Yi |
| author_facet | Zhe Wang Jianchao Sheng Rui Wang Xibin Li Yuanjie Xiao Zihao Yi |
| author_sort | Zhe Wang |
| collection | DOAJ |
| description | In recent years, shield tunneling has shown many advantages with the development of underground rail traffic. Geological exploration plays a significant role in tunnel engineering, and detailed geological exploration results can guide the successful construction of a tunnel. This research relies on a super large-diameter shield tunnel construction, using microtremor exploration technology to collect data onsite. Combined with a comparative analysis of the borehole surveying, the reliability of microtremor exploration technology is verified. Moreover, the monitoring result of the impact of large-diameter slurry balanced shield construction on the surrounding environment is analyzed. The results show that microtremor exploration can obtain geological details that traditional detection methods cannot obtain, which can predict the possible local geology mutation in front of the tunnel in advance. The law of surface settlement curve conforms to the Peck formula. This can be divided into five stages: micro deformation, extrusion uplift, reciprocating uplift, detachment settlement, and consolidation settlement. The surface settlement on the eccentric loads side is more prominent. The maximum pressure outside the tunnel segment appears on the lower side of the monitoring section, approximately 0.41 MPa, which will increase with the grouting pressure and become stable in five days. |
| first_indexed | 2024-03-11T10:07:43Z |
| format | Article |
| id | doaj.art-46ea167666c44418a8e20b89e0167a1f |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T10:07:43Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-46ea167666c44418a8e20b89e0167a1f2023-11-16T14:52:55ZengMDPI AGApplied Sciences2076-34172022-12-0113126310.3390/app13010263Analysis of Microtremor Exploration Application and Construction Monitoring in a Large-Diameter Shield TunnelZhe Wang0Jianchao Sheng1Rui Wang2Xibin Li3Yuanjie Xiao4Zihao Yi5Institute of Geotechnical Engineering, Zhejiang University of Technology, Hangzhou 310014, ChinaInstitute of Geotechnical Engineering, Zhejiang University of Technology, Hangzhou 310014, ChinaInstitute of Geotechnical Engineering, Zhejiang University of Technology, Hangzhou 310014, ChinaSchool of Landscape Architecture, Zhejiang A & F University, Hangzhou 311300, ChinaNational Engineering Research Center for High Speed Railway Construction Technology, Central South University, Changsha 410004, ChinaInstitute of Geotechnical Engineering, Zhejiang University of Technology, Hangzhou 310014, ChinaIn recent years, shield tunneling has shown many advantages with the development of underground rail traffic. Geological exploration plays a significant role in tunnel engineering, and detailed geological exploration results can guide the successful construction of a tunnel. This research relies on a super large-diameter shield tunnel construction, using microtremor exploration technology to collect data onsite. Combined with a comparative analysis of the borehole surveying, the reliability of microtremor exploration technology is verified. Moreover, the monitoring result of the impact of large-diameter slurry balanced shield construction on the surrounding environment is analyzed. The results show that microtremor exploration can obtain geological details that traditional detection methods cannot obtain, which can predict the possible local geology mutation in front of the tunnel in advance. The law of surface settlement curve conforms to the Peck formula. This can be divided into five stages: micro deformation, extrusion uplift, reciprocating uplift, detachment settlement, and consolidation settlement. The surface settlement on the eccentric loads side is more prominent. The maximum pressure outside the tunnel segment appears on the lower side of the monitoring section, approximately 0.41 MPa, which will increase with the grouting pressure and become stable in five days.https://www.mdpi.com/2076-3417/13/1/263microtremor explorationlarge-diameter shield tunnelfield monitoringgeophysical explorationsurface deformationearth pressure |
| spellingShingle | Zhe Wang Jianchao Sheng Rui Wang Xibin Li Yuanjie Xiao Zihao Yi Analysis of Microtremor Exploration Application and Construction Monitoring in a Large-Diameter Shield Tunnel Applied Sciences microtremor exploration large-diameter shield tunnel field monitoring geophysical exploration surface deformation earth pressure |
| title | Analysis of Microtremor Exploration Application and Construction Monitoring in a Large-Diameter Shield Tunnel |
| title_full | Analysis of Microtremor Exploration Application and Construction Monitoring in a Large-Diameter Shield Tunnel |
| title_fullStr | Analysis of Microtremor Exploration Application and Construction Monitoring in a Large-Diameter Shield Tunnel |
| title_full_unstemmed | Analysis of Microtremor Exploration Application and Construction Monitoring in a Large-Diameter Shield Tunnel |
| title_short | Analysis of Microtremor Exploration Application and Construction Monitoring in a Large-Diameter Shield Tunnel |
| title_sort | analysis of microtremor exploration application and construction monitoring in a large diameter shield tunnel |
| topic | microtremor exploration large-diameter shield tunnel field monitoring geophysical exploration surface deformation earth pressure |
| url | https://www.mdpi.com/2076-3417/13/1/263 |
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