Mechanical Analysis of Secondary Lining of Super Shallow Buried Tunnel and Improvement of Construction Technology

DONG Guang

Article ID: 2588
Vol 2, Issue 2, 2022
DOI: https://doi.org/10.54517/vfc.v2i2.2588
VIEWS - 1957 (Abstract)

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Abstract

Based on the actual situation of the secondary lining of the Hongxing Tunnel in Dalian Bay, this article focuses on the mechanical properties of the secondary lining of the ultra -shallow buried tunnel underpassing the existing highway, mainly using the Taishaji theory and the Beijing mining method for the calculation of load and moment, shear force, axial force, etc. And the construction control measures of the second lining of the tunnel under the condition of super shallow buried and concealed excavation were put forward. Studies have shown that the mechanical analysis and calculation of the secondary lining used in this project are in line with reality, and the selection of the construction technology of the secondary lining is reasonable, and it is worthy of popularization and use in similar projects.


Keywords

Super shallow buried excavation; Mechanical analysis of the second lining; Construction ion technology of the second lining.


References

1. GB 50010-2010, Code for design of concrete structures [S].

2. GB 50009-2012, Code for structural loading of buildings [S].

3. GB 50011-2010, Code for Seismic Design of Buildings [S].

4. GB 50157-2013, Subway Design Code [S].

5. JTG D70-2-2014, Design specification for highway tunnels [S].

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