Author(s)

Wang Qiusheng ¹, Zhou Tianqi ¹, Qi Yunpeng ¹

Affiliation(s)

¹ Key Laboratory of Urban and Engineering Safety and Disaster Reduction, Ministry of Education, Beijing University of Technology, Beijing, 100124, China

Corresponding Author

Wang Qiusheng

ABSTRACT

The cases of bridge damage due to water erosion are common. The traditional riprap protection method is not only limited in effect, but also expensive, which is difficult to meet the needs of modern engineering. In offshore wind power projects, solidified soil technology has been widely used because of its excellent anti-erosion performance, which provides a new way to solve the problem of anti-erosion. In this paper, the 16# main pier of Chongqing Jiangjin Yangtze River Highway Bridge is taken as the research object. Before construction, Fluent is used to simulate the influence of gabion on water flow characteristics to verify the feasibility of gabion protection technology. The simulation results show that gabion structure can not only significantly reduce the flow rate and reduce the impact of water flow on the surrounding environment, but also provide good construction environmental conditions for solidification soil perfusion. The anti-erosion reinforcement of the 16# main pier of Chongqing Jiangjin Yangtze River Highway Bridge has been successfully realized by the process of steel wire gabion combined with solidified soil perfusion. The test after construction shows that the solidified soil is well integrated with the original riverbed, and there is no obvious local erosion pit or hollowing around the pile foundation. The overall profile of the protection system is stable, and the anti-erosion ability is significantly improved. This process provides an important technical reference for the design and construction of anti-erosion of inland river Bridges.

KEYWORDS

Consolidated soil; Gabions; scour protection; Restoration; Numerical simulation

CITE THIS PAPER

Wang Qiusheng, Zhou Tianqi, Qi Yunpeng, Application of Construction Technology for Scour Protection of River Bridge Foundation. Journal of Civil Engineering and Urban Planning (2025) Vol. 7: 122-135. DOI: http://dx.doi.org/10.23977/jceup.2025.070115.

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