The Downstream Cofferdam Blocking Method for Embankment Breaches and its Application
Main Article Content
Abstract
Aiming at the problems of low efficiency and difficult repair of the traditional plugging scheme after the breach of rivers and lakes in China, a downstream cofferdam plugging method based on hydraulic model is proposed. Through the real-time monitoring of the breach parameters, the cofferdam layout scheme can be quickly determined. Combined with the steel sheet pile cofferdam, the breach plugging and embankment repair can be realized. Verified by the case of the Tuanzhou dam breach in Dongting Lake in 2024, this method can reduce the flood discharge by 86 million m3 compared with the traditional scheme, shorten the rescue time to 2 days, and completely repair the embankment structure through the double-layer cofferdam technology (downstream rockfill cofferdam + upstream steel sheet pile cofferdam), providing an efficient emergency plan for similar dangerous situations.
Downloads
Article Details
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
References
G. Yang, “Hydraulic characteristics and closure technology of river dike break,” Hubei hydropower, no. 04, pp. 9–16, 1999.
Yangguangxu, “The record and experience of Jiujiang Yangtze River dike closure,” people’s Yangtze River, no. 11, pp. 4–7+49, 1998, DOI: 10.16232/j.cnki.1001-4179.1998.11.002.
J. Y. Zhao, “Experimental study on flow field characteristics of dike break and new plugging technology,” North China University of Water Resources and Hydropower, Zhengzhou, China, 2022, DOI: 10.27144/d.cnki.ghbsc.2022.000090.
Q. G. Chen, D. W. Zhang, Z. X. Wang, et al., “Research progress on flow characteristics and plugging technology of dike break,” China Flood & Drought Management, vol. 31, no. 08, p. 16, 2021, DOI: 10.16867/j.issn.1673-9264.2021186.
Y. Xiong, Y. Cheng, and H. Chen, “Review of research on emergency rescue technology for dike breach,” Journal of the Yangtze River academy of Sciences, vol. 36, no. 10, pp. 169–174, 2019.
D. C. Hu, M. Wang, B. Mao, et al., “Recurrence of 2024 dike break flood process of Tuanzhou embankment in Dongting Lake,” Journal of Yangtze River Scientific Research Institute, vol. 41, no. 12, pp. 180–188, 2024.
W. Q. Peng, J. Mu, H. J. Yu, et al., “Key technologies for prevention and response to Tuanzhou embankment breach in Hunan,” China Water Resources, no. 18, pp. 25–31, 2024.
G. Li, Fundamentals of hydraulics, 4th ed. Beijing, China: Higher Education Press, 2016.
Ministry of water resources of the people’s Republic of China, Regulations on Preparation of design estimate (estimation) of water conservancy and hydropower projects. Beijing, China: China water resources and Hydropower Press, 2020.
G. Yang, Zhangxuanzhuang, S. You, et al., “Application of land and water combined rapid plugging technology in the rescue of tuanzhou embankment burst,” people’s Yellow River, vol. 46, no. S2, pp. 38–39, 2024.
W. Duan, B. Liu, and W. Huang, “Computational model for the development process of non cohesive dike breach,” Journal of the Yangtze River academy of Sciences, vol. 41, no. 02, pp. 67–75, 2024.
Z. Li, “Demonstration of closure scheme for lianbeixu breach in Jiangxi Province,” China water resources, no. 22, pp. 53–54, 2021.
Z. Xiang, “Research and application of flood control and rescue technologies such as underground channel protection and breach closure,” people’s Yellow River, vol. 45, no. S2, pp. 128+131, 2023.