Proceedings of the 2023 5th International Conference on Civil Architecture and Urban Engineering (ICCAUE 2023)

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Research on retaining the middle heading and spraying steel fiber concrete support method for large-span bifurcated tunnel

Authors
Xiurong Du1, Chao Chen1, *
1CCCC (Guangzhou) Construction Co. Ltd, Guangzhou, 511466, China
*Corresponding author. Email: 303456242@qq.com
Corresponding Author
Chao Chen
Available Online 12 February 2024.
DOI
10.2991/978-94-6463-372-6_19How to use a DOI?
Keywords
Large span bifurcation; tunnel; stable construction; middle heading; steel fiber reinforced concrete; numerical simulation
Abstract

In order to solve the problem of surrounding rock deformation during the construction of large-span bifurcated tunnels, this article takes the Yangang East Interchange project as the engineering background, and combines with the existing construction design scheme of large-span bifurcated tunnels, establishes a construction method of retaining the middle heading and spraying steel fiber concrete. Firstly, the construction process of retaining the steel fiber reinforced concrete construction method for the middle guide pit was provided. Then, numerical models of B and C bifurcation tunnels were established based on universal finite element software. From the perspective of surrounding rock deformation, the advantages of this project’s construction method over the original design construction method were analyzed. Research has shown that the construction method proposed in this article not only significantly controls arch crown settlement and inverted arch uplift, but also improves construction efficiency. This study can provide reference for the construction of urban bifurcated tunnels.

Copyright
© 2024 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 2023 5th International Conference on Civil Architecture and Urban Engineering (ICCAUE 2023)
Series
Atlantis Highlights in Engineering
Publication Date
12 February 2024
ISBN
10.2991/978-94-6463-372-6_19
ISSN
2589-4943
DOI
10.2991/978-94-6463-372-6_19How to use a DOI?
Copyright
© 2024 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Xiurong Du
AU  - Chao Chen
PY  - 2024
DA  - 2024/02/12
TI  - Research on retaining the middle heading and spraying steel fiber concrete support method for large-span bifurcated tunnel
BT  - Proceedings of the 2023 5th International Conference on Civil Architecture and Urban Engineering (ICCAUE 2023)
PB  - Atlantis Press
SP  - 195
EP  - 207
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-372-6_19
DO  - 10.2991/978-94-6463-372-6_19
ID  - Du2024
ER  -