Discussion on the Design and Implementation Scheme of Cofferdam Reconditioning Concrete Slab in the Tunnel

Heng Zhong; Jun Hu; Zhenghu Chen; Haomin Guo; Xiongwei Wan; Binbin Lan; Zhiyong Zhou

doi:10.2991/978-94-6463-726-7_49

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Discussion on the Design and Implementation Scheme of Cofferdam Reconditioning Concrete Slab in the Tunnel

Authors

Heng Zhong¹, Jun Hu¹, Zhenghu Chen¹, Haomin Guo¹, Xiongwei Wan², Binbin Lan², Zhiyong Zhou²^{, *}

¹China Yangtze Power Co., Ltd, YiChang, China

²Wuhan Jucheng Structure Co., Ltd, Wuhan, China

^*Corresponding author. Email: 124411319@qq.com

Corresponding Author

Zhiyong Zhou

Available Online 13 June 2025.

DOI: 10.2991/978-94-6463-726-7_49 How to use a DOI?
Keywords: Water Discharge tunnel; cofferdam; watertight; defect repair
Abstract: This paper takes the water discharge tunnel of the Maopingxi in the Three Gorges area as an example, introduce a rapidly transferable, assembled cofferdam device for reconditioning tunnel in the case of water continuously flowing and its implemetation scheme.. By forming a water-tight space on one side of the tunnel with the cofferdam device, the defects such as cavities, damage, and exposed reinforcement in the concrete slab of the tunnel can be repaired within the water-tight space, while the outside of the cofferdam maintains water flow. The rapid turnover of the cofferdam enables the repair of defects in the entire concrete slab of the tunnel, providing a new method for the repair and reinforcement of defects in tunnels and other structures under normal water flow conditions.
Copyright: © 2025 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 2024 6th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2024)
Series: Atlantis Highlights in Engineering
Publication Date: 13 June 2025
ISBN: 978-94-6463-726-7
ISSN: 2589-4943
DOI: 10.2991/978-94-6463-726-7_49 How to use a DOI?
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

ris enw bib

TY  - CONF
AU  - Heng Zhong
AU  - Jun Hu
AU  - Zhenghu Chen
AU  - Haomin Guo
AU  - Xiongwei Wan
AU  - Binbin Lan
AU  - Zhiyong Zhou
PY  - 2025
DA  - 2025/06/13
TI  - Discussion on the Design and Implementation Scheme of Cofferdam Reconditioning Concrete Slab in the Tunnel
BT  - Proceedings of the 2024 6th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2024)
PB  - Atlantis Press
SP  - 503
EP  - 512
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-726-7_49
DO  - 10.2991/978-94-6463-726-7_49
ID  - Zhong2025
ER  -

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