STABILITY OF HIGH-SPECIFIC GRAVITY ARMOR BLOCKS

Masahiro Ito; Yuichi Iwagaki; Hiroshi Murakami; Kenji Nemoto; Masato Yamamoto; Minoru Hanzawa

doi:10.9753/icce.v24.%p

No. 24 (1994), Conference Proceedings

No. 24 (1994)

STABILITY OF HIGH-SPECIFIC GRAVITY ARMOR BLOCKS

Conference Proceedings

https://doi.org/10.9753/icce.v24.%25p

Published 1994-01-29

Masahiro Ito⁺⁻
Yuichi Iwagaki⁺⁻
Hiroshi Murakami⁺⁻
Kenji Nemoto⁺⁻
Masato Yamamoto⁺⁻
Minoru Hanzawa⁺⁻

Masahiro Ito

Department of Civil Engineering, Meijo University

Yuichi Iwagaki

Department of Civil Engineering, Meijo University

Hiroshi Murakami

Department of Civil Engineering, Meijo University

Kenji Nemoto

Nippon Tetrapod Co. Ltd.

Masato Yamamoto

Nippon Tetrapod Co. Ltd.

Minoru Hanzawa

Nippon Tetrapod Co. Ltd.

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Keywords

armor
armor blocks
armor stability

How to Cite

Ito, M., Iwagaki, Y., Murakami, H., Nemoto, K., Yamamoto, M., & Hanzawa, M. (1994). STABILITY OF HIGH-SPECIFIC GRAVITY ARMOR BLOCKS. Coastal Engineering Proceedings, 1(24). https://doi.org/10.9753/icce.v24.%p

Abstract

The stability coefficient of the well-known the Hudson formula, KD, has been established by many laboratory tests for various types of armor blocks with a range of specific gravity 2.16-2.47 representative of normal concrete. Design manuals for coastal structures do not describe the adoption of high-specific gravity armor blocks for use in field construction. To examine the effect of specific gravity on stability of Tetrapods, then a laboratory test was conducted by using Tetrapod models of different weights which are composed of five values of specific gravities. Temporal changes of damage ratio arranged test conditions that satisfy the Hudson formula do not coincide among each other, depending on wave period and specific gravity. The effect of the specific gravity on their stability is discussed. As a result, it is found that the relationship between the stability and the specific gravity is considerably affected by the surf similarity parameter and Reynolds number.

https://doi.org/10.9753/icce.v24.%25p

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STABILITY OF HIGH-SPECIFIC GRAVITY ARMOR BLOCKS

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