The planning of LEAP-Asia-2025 project and preliminary centrifuge model tests at Zhejiang University

Publication Title
The planning of LEAP-Asia-2025 project and preliminary centrifuge model tests at Zhejiang University

Abstract

The LEAP-Asia-2025 project investigates the dynamic response of liquefiable grounds under earth dam (or embankment) during shaking, with particular emphasis on the effects of overburden stress and initial static shear stress. This paper outlines the integrated research framework combining element testing, centrifuge model testing, and numerical simulations. To verify the feasibility of the proposed centrifuge testing scheme, preliminary model tests were conducted at Zhejiang University. Full-cross-section and half-cross-section embankment models were examined under sinusoidal input motions with varying peak ground accelerations. The results indicate that the half-cross-section model introduces significant boundary constraints and cannot fully reproduce the response of the full-cross-section configuration, especially in the crest surcharge zone. Deformation analyses further demonstrate the strong influence of input intensity on foundation performance. Based on these findings, a full-cross-section model with reduced dam height and a recommended peak ground acceleration are adopted for the subsequent LEAP-Asia-2025 collaborative test programme.

Authors
Yan-Guo Zhou; Chang-Yi Zhang; Qiang Ma; Y. Cao; Majid Manzari; M. Zeghal; Kyohei Ueda; M. Okamura; P. Gopal MADABHUSHIS; Rui Wang; Yunmin Chen

Published In

11th International Conference on Physical Modelling in Geotechnics (ICPMG2026)

Theme

Special Session 10: Liquefaction Experiments and Analysis Projects – Lesson Learned from LEAP-Asia-2025