Proceedings of the 2023 5th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2023)

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Study on the Applicability of “Five-Step Single Sidewall Guide Pit Method” for Loess Tunnels with Very Large Cross-Section

Authors
Minglei Qiao1, Sheng Li1, *, Yanjin Xue1, 2, Qicai Wang1, 2, Jiangong Zhang3, Zhigang Chen1
1School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, 730070, China
2State Local Joint Engineering Laboratory of Road and Bridge Engineering Disaster Prevention and Control Technology, Lanzhou Jiaotong University, Lanzhou, Gansu, 730070, China
3China Seventeen Metallurgical Group Co. Ltd., Maanshan, Anhui, 243000, China
*Corresponding author. Email: ligwin@126.com
Corresponding Author
Sheng Li
Available Online 24 April 2024.
DOI
10.2991/978-94-6463-398-6_39How to use a DOI?
Keywords
super large section; loess tunnel; five-step single sidewall guide pit method; numerical simulation; field test
Abstract

In order to strengthen the control ability of single sidewall guided pit method on surrounding rock deformation, and make it more suitable for the construction of very large section loess tunnel. The five-step single sidewall pit guide method is proposed by reserving core soil on the basis of single sidewall pit guide method. Taking the Fenghuang Mountain Tunnel of the expansion and renovation project of the Qingshuiyi-Zhonghe section of the G30 Lianhuo Expressway as the engineering background, the effects of changes in depth of burial, density, modulus of elasticity, cohesion and angle of internal friction on the settlement of the arch, horizontal convergence and stress of the steel arch frame were analyzed through numerical simulation, and the applicability of the five-step single sidewall pit guiding method was obtained: the density should not be more than 1.69g/cm3, and the modulus of elasticity should not be less than 50MPa.

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 Hydraulic, Civil and Construction Engineering (HCCE 2023)
Series
Atlantis Highlights in Engineering
Publication Date
24 April 2024
ISBN
10.2991/978-94-6463-398-6_39
ISSN
2589-4943
DOI
10.2991/978-94-6463-398-6_39How 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  - Minglei Qiao
AU  - Sheng Li
AU  - Yanjin Xue
AU  - Qicai Wang
AU  - Jiangong Zhang
AU  - Zhigang Chen
PY  - 2024
DA  - 2024/04/24
TI  - Study on the Applicability of “Five-Step Single Sidewall Guide Pit Method” for Loess Tunnels with Very Large Cross-Section
BT  - Proceedings of the 2023 5th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2023)
PB  - Atlantis Press
SP  - 413
EP  - 425
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-398-6_39
DO  - 10.2991/978-94-6463-398-6_39
ID  - Qiao2024
ER  -