Effect of water submergence on the seismic response of coral sand slopes: Dynamic centrifuge evidence from subaerial and submarine conditions

Jiepeng Chen

doi:10.1016/j.oceaneng.2026.127480

Effect of water submergence on the seismic response of coral sand slopes: Dynamic centrifuge evidence from subaerial and submarine conditions

2026-08-08

0

PRE

AI

J

Jiepeng Chen

Y

Yang Yang

H

Hu Zheng

Y

Yu Huang

W

Wuwei Mao *

DOI：10.1016/j.oceaneng.2026.127480

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• Water submersion fundamentally alters the seismic response mechanism of coral sand slopes. • Submergence suppresses high-frequency amplification and shifts peak acceleration downslope. • Sinusoidal loading generates higher excess pore pressure, especially under submerged conditions. • Lower acceleration amplification under submergence does not imply improved seismic stability.

Keywords:

Coral sand

Subaerial slope condition

Submarine slope condition

Dynamic response

Excess pore pressure ratio

Effect of water submergence on the seismic response of coral sand slopes: Dynamic centrifuge evidence from subaerial and submarine conditions

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