Study on Mechanical Dredging Schemes Based on Different Dredging Positions in Gongzui Reservoir

Zhiyuan Yang; Linan Xue; Yiqin Xie; Weihong Liao; Haichen Li; Chen Ji

doi:10.2991/978-94-6239-682-1_5

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Study on Mechanical Dredging Schemes Based on Different Dredging Positions in Gongzui Reservoir

Authors

Zhiyuan Yang¹, Linan Xue²^{, 3}, Yiqin Xie², Weihong Liao², Haichen Li²^{, *}, Chen Ji²^{, 3}

¹Gongzui Hydropower Plant, CHN ENERGY Investment Group Co., Leshan, 614900, Sichuan Province, China

²China Institute of Water Resources and Hydropower Research Department of Water Resource, Beijing, 100038, China

³College of Water Resource and Hydropower, Sichuan University, Chengdu, 610065, Sichuan Province, China

^*Corresponding author. Email: 1454243560@qq.com

Corresponding Author

Haichen Li

Available Online 30 June 2026.

DOI: 10.2991/978-94-6239-682-1_5 How to use a DOI?
Keywords: Mechanical dredging; Sedimentation volume; Circulation flow; Dredging positions
Abstract: This paper conducts a study on mechanical dredging schemes aiming at the siltation problem near the water intake of the right bank shoal in the right bank expansion area of Gongzui Reservoir. Four different dredging positions are set: 300m upstream of the dam on the right bank shoal (A1), near the funnel area in front of the dam (A2), a channel led out from the upstream of the dam (A3), and the area more than 300m upstream of the dam (A4). Combined with three typical water and sediment processes in high-flow year, normal-flow year, and low-flow year, the sedimentation volume and the change of flow field in front of the dam under different schemes are analyzed through a two-dimensional flow-sediment mathematical model. The results show that dredging within 300m in front of the dam results in a small overall sedimentation volume, which plays a positive role in reducing siltation. To further optimize the effect, it is suggested to construct a diversion dike in the area in front of the dam.
Copyright: © 2026 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 2025 7th International Conference on Civil Architecture and Urban Engineering (ICCAUE 2025)
Series: Atlantis Highlights in Engineering
Publication Date: 30 June 2026
ISBN: 978-94-6239-682-1
ISSN: 2589-4943
DOI: 10.2991/978-94-6239-682-1_5 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  - Zhiyuan Yang
AU  - Linan Xue
AU  - Yiqin Xie
AU  - Weihong Liao
AU  - Haichen Li
AU  - Chen Ji
PY  - 2026
DA  - 2026/06/30
TI  - Study on Mechanical Dredging Schemes Based on Different Dredging Positions in Gongzui Reservoir
BT  - Proceedings of the 2025 7th International Conference on Civil Architecture and Urban Engineering (ICCAUE 2025)
PB  - Atlantis Press
SP  - 35
EP  - 44
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6239-682-1_5
DO  - 10.2991/978-94-6239-682-1_5
ID  - Yang2026
ER  -

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