01 Structural Stability

• • Unlike the existing method of lifting through adhesive force, a winding method is used
• • Use of wire ropes without ends - About three times more stable

3D numerical analysis (new method)

A. Analysis result

B. Stress Review

02 Workability

• • No need for heavy wire rope cutting and processing
• • No need to install a lifting cable box

03 Quality

• • Volume expansion due to wire rope corrosion - Causes block cracks
• • No risk of corrosion since there is no wire rope

04 Eco Design

• • When lifting, rusty water continues to occur after one use - Causes seawater contamination
• • No rust because there is no iron component - Prevention of seawater pollution

05 Economics

• • Increase in construction cost because the wire rope lifting cable can’t be used after one-time placement
• • The lifting cable can be recovered after placement and re-used more than 100 times for block placement

06 Maintainability

• • When the block is lifted again after a certain period of time, it is possible to re-lift by inserting a wire rope through the penetration pipe.