01 Operation Principle

• • Integration of the structure by interlocking separated blocks from the top, bottom, left and right underwater
• • Able to install heavy structures on jetty blocks
• • Low vibration noise because pile driving is not necessary
• • · Technique applied to Tiecell caisson that can be applied to various marine structures

Disadvantages of jetty compensated with jetty blocks

02 Improvement of Efficiency

• • Unlike the existing jetty, as each block is interlocked from the top, bottom, left and right sides underwater due to the interlock structure and ensures reliable stability, it enables the implementation of heavy structures on the top part
• • There may be minor errors in the production of blocks, and errors may occur because they are mounted in water.
• • On-site installation was done using the know-how of Tiecell method, and it was confirmed that there was no problem.
• • The seawater barrier is installed in close contact with the lattice hole side by lateral pressure to bind the blocks.

Jetty Block Flow Chart

03 Economics

• • Rebar concrete columns are installed directly into the ground by drilling directly into the bedrock layer.
• • The economic effect is maximized by dramatically miniaturizing the cross section of the existing large caisson

Economic feasibility is secured through the minimization of cross sections and quantity

Caisson method application by manufacturing small blocks and then interlocking them underwater

Efficiency of Tiecell Blocks

04 Structural Stability

• • Stability is secured by examining only the column member force for external forces
• • Friction by the weight of the Tiecell block is not considered
• • Considering the frictional force caused by the weight of the structure, the reduction in construction costs can be even greater