A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Summary and Outlook
This book systematically summarizes the scientific research achievements and practical experience in the implementation process of the large-diameter shield tunnel crossing Meizizhou air shaft project in Nanjing Weisan Road River Crossing Channel. It comprehensively introduces the new construction technology of the large-diameter shield tunnel crossing circular air shaft, mainly including the construction technology of the ultra-deep circular air shaft foundation pit enclosure system in the sensitive environment of the river, underwater excavation, and underwater large-volume concrete bottom sealing construction technology The adaptability improvement of shield tunneling machines and the construction technology of crossing air shafts, as well as the stability control technology of ultra-deep foundation pits during process conversion. This series of new construction technologies have achieved a one-time three-dimensional cutting of the concrete structure of the tunnel face by the shield tunneling machine without changing the cutting tools, successfully avoiding system risks. It is the first case in China for a large-diameter shield tunneling project to pass through a circular air shaft at once, ensuring the smooth, safe, and timely implementation of the project, saving time and cost, and achieving great social and economic benefits.
Summary and Outlook
This book systematically summarizes the scientific research achievements and practical experience in the implementation process of the large-diameter shield tunnel crossing Meizizhou air shaft project in Nanjing Weisan Road River Crossing Channel. It comprehensively introduces the new construction technology of the large-diameter shield tunnel crossing circular air shaft, mainly including the construction technology of the ultra-deep circular air shaft foundation pit enclosure system in the sensitive environment of the river, underwater excavation, and underwater large-volume concrete bottom sealing construction technology The adaptability improvement of shield tunneling machines and the construction technology of crossing air shafts, as well as the stability control technology of ultra-deep foundation pits during process conversion. This series of new construction technologies have achieved a one-time three-dimensional cutting of the concrete structure of the tunnel face by the shield tunneling machine without changing the cutting tools, successfully avoiding system risks. It is the first case in China for a large-diameter shield tunneling project to pass through a circular air shaft at once, ensuring the smooth, safe, and timely implementation of the project, saving time and cost, and achieving great social and economic benefits.
Summary and Outlook
Key Technologies for tunn. Construction under Complex Geological and Environmental Conditions
Yao, Zhanhu (author) / Zhang, Yazhou (author) / Li, Hui (author)
2024-07-25
3 pages
Article/Chapter (Book)
Electronic Resource
English
| Wiley | 2009
| Wiley | 2014
| Springer Verlag | 2025
| Springer Verlag | 2020
| Springer Verlag | 2019