High-performance analysis of the seismic response of a rockfill dam-thick deposit system

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This research aims to analyze the dynamic response of a dam-foundation system under seismic activity.
Developed a large-scale 3D elastic-plastic coupled simulation model with over ten million degrees of freedom.
Conducted detailed numerical simulations on a rockfill dam situated on deep, soft-covered ground in a wide valley.
Analyzed the effects of stone pile reinforcement on post-earthquake settlement and pore pressure dissipation.
The dam-foundation system exhibits significant 3D effects during an earthquake, with acceleration and post-quake deformation showing a distribution of high values on the sides and low in the center of the valley.
The maximum deformation occurs towards the valley center, while peak acceleration is observed elsewhere.
Reinforcing the cover layer with stone piles has limited effects on reducing post-earthquake settlement but shows a notable effect on dissipating excess pore pressure.

Examines seismic response in rockfill dam systems, indicating critical insights for safety.

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Pu et al. (2026) studied this question.

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