01 Operation Principle

• • Reduce the impact on the structure by changing the wave energy direction 180° and colliding it with the next wave.
• • Absorbs wave energy from the inside to reduce the amount of overtopping
• • Direct wall blocks erode the sand or gravel underneath, but returning-waves blocks are deposited or retained to prevent erosion and collapse.
• • Because the top is flat, it can be easily used and has hydrophilicity
• • · It has more of an overtopping reduction effect than T.T.P., so it is installed lower for a coastal landscape view

02 Improvement of Efficiency

• • In a hydraulic model test, about 10 times more effective in overtopping reduction than a T.T.P. inclined system
• • Excellent impact reduction and anti-scouring effect compared to straight walls

Overtopping reduction

Scour and erosion prevention

03 Structural Stability

• • Unlike the existing method of lifting through adhesive force, a winding method is used
• • Use of wire ropes without ends

Unit block numerical analysis

04 Economics

• • Installing T.T.P. is not economical because the quantity is large
• • Convergence with the column binding method can reduce construction costs by more than 20% while securing structural stability.

Secures economic feasibility by reducing quantity and area

Implementation of economical returning-waves block revetment

05 Scenery

• • T.T.P.s piled up like mountains all over the country are harming water-friendly spaces.
• • Natural coasts are reborn as hydrophilic coasts.
• • • Able to create eco-friendly coasts with safe and convenient access.

Improvement of the coastal environment

Water-friendly space secured

Forms a beautiful coast

06 Eco-Friendly

• • No way to clean up when marine waste enters the T.T.P installation area
• • Returning-waves block does not accumulate waste
• • Prevents odor and spoilage of marine waste

Easy to clean marine waste

Artificial reef function

Establishment of eco-friendly tourism infrastructure