IMPACT FORCE ANALYSIS ON WAVE DISSIPATING CONCRETE BLOCKS DURING ROCKING MOTION

Jun Mitsui; Masato Yamamoto; Satoshi Noboru; Ichiro Nishiwaki

doi:10.9753/icce.v32.structures.44

No. 32 (2010), Coastal Structures

No. 32 (2010)

IMPACT FORCE ANALYSIS ON WAVE DISSIPATING CONCRETE BLOCKS DURING ROCKING MOTION

Coastal Structures

https://doi.org/10.9753/icce.v32.structures.44

Published 2011-01-29

Jun Mitsui⁺⁻
Masato Yamamoto⁺⁻
Satoshi Noboru⁺⁻
Ichiro Nishiwaki⁺⁻

Jun Mitsui

Fudo Tetra Corporation

Masato Yamamoto

Fudo Tetra Corporation

Satoshi Noboru

Fudo Tetra Corporation

Ichiro Nishiwaki

Fudo Tetra Corporation

Proceedings of the 32nd International Conference

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Keywords

wave dissipating concrete block
impact force
drop test

How to Cite

Mitsui, J., Yamamoto, M., Noboru, S., & Nishiwaki, I. (2011). IMPACT FORCE ANALYSIS ON WAVE DISSIPATING CONCRETE BLOCKS DURING ROCKING MOTION. Coastal Engineering Proceedings, 1(32), structures.44. https://doi.org/10.9753/icce.v32.structures.44

Abstract

Breakage of wave dissipating concrete blocks occasionally occurs due to collision with other blocks during rocking motion under wave action. Therefore, an understanding of the impact forces induced by rocking blocks is important to solve this problem. The authors formulated impact forces using impact velocity, properties of materials, and dimensionless parameters depending on the shape of blocks to propose a theory to predict the magnitude of impact force. Fundamental drop tests using tetrapods were also conducted to confirm the proposed formula. Various sizes of blocks were used in the drop tests to reveal the scale effects. It is shown that predicted impact forces agree well with measured ones and that no scale effects concerning impact force seem to exist in the range of this study.

https://doi.org/10.9753/icce.v32.structures.44

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References

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IMPACT FORCE ANALYSIS ON WAVE DISSIPATING CONCRETE BLOCKS DURING ROCKING MOTION

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