Application of self-flow controllable grouting and underwater concrete technologies for enhancing the wave-damping and scour resistance of cemented riprap breakwaters
Source abstract
Abstract
Self-flow controllable grouting (SFCG) and self-protecting underwater concrete (SPUC) technologies were applied to the underwater construction of breakwaters, converting loose riprap of the armor layer into high-strength, well-integrated, and highly permeable cemented granular material. Large-scale wave flume tests were conducted to assess the wave-damping effects and scour resistance stability of cemented riprap breakwaters with different porosities, compared to traditional riprap breakwaters. Artificial neural networks (ANNs) were employed to predict wave-damping effects, and Three-Dimensional (3D) reconstruction technology was used to evaluate the scour resistance performance. Results indicated that SPUC significantly reduced concrete loss during underwater casting, achieving an armor layer porosity of 0.37, compared to 0.32 for air-poured cemented riprap breakwaters. The roughness coefficients γ f for underwater and air-poured cemented riprap breakwaters were 0.44 and 0.39, respectively, closely matching the 0.37 for traditional riprap breakwaters, indicating comparable wave-damping performance. Under large wave conditions, riprap breakwaters showed varying degrees of damage, while cemented riprap breakwaters maintained excellent structural integrity, with damage coefficients S d remaining below 1. Overall, cemented riprap breakwaters exhibit superior structural stability and wave-damping performance, making them a highly effective alternative to traditional riprap breakwaters.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Coastal and Marine Dynamics · Grouting, Rheology, and Soil Mechanics · Geotechnical Engineering and Soil Stabilization
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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