Settlement of breakwater on submarine soil due to wave-induced liquefaction

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:256972

Oka, F; Yashima, A ^[1]; Miura, S ^[2]; Ohmaki, S ^[3]; Kamata, A ^[4]

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1. Gifu Univ. (Japan)
2. Hokkaido Univ., Sapporo (Japan)
3. National Research Inst. of Fisheries, Ibaraki (Japan)
4. Hokkaido Prefecture Government, Sapporo (Japan)

The stability and deformation of the seabed in response to ocean wave loading is an important consideration in the design of offshore structures such as breakwaters, anchors, platforms, and pipelines. In this study, the instability of the sandy seabed due to the wave-induced liquefaction is investigated based on intensive field observations and computational studies. A large settlement of the breakwater on loosely deposited sand bed was observed at a small fishery port in Hokkaido, Japan. To determine the appropriate countermeasure against this large settlement, intensive field observations and computational studies were carried out. It was found that the earthquake-type liquefaction phenomenon of the foundation sandy soil brought a significant settlement of the breakwater.

• OSTI ID: 256972
• Report Number(s): CONF-950604--; ISBN 1-880653-17-6
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
COMPUTERIZED SIMULATION
EROSION
FOUNDATIONS
JAPAN
LIQUEFACTION
MATHEMATICAL MODELS
OFFSHORE PLATFORMS
PIPELINES
RESEARCH PROGRAMS
SITE CHARACTERIZATION
SOIL-STRUCTURE INTERACTIONS
WATER WAVES
WAVE FORCES