Séminaire Geotech : Cen Gao (Navier)

B004 (Carnot) – 11h30
24 Jun 2026

Stability of dikes built with lime-treated soils under marine loading

Abstract:

The durability and stability of sea dikes have become a sustained concern with continuous sea level rising due to climate change. In this study, the mechanical behaviour of a lime-treated silty soil for sea dike construction in hydraulic and saline environments was investigated, with emphasis on the microstructure evolution. The laboratory experiments, combined with the field monitoring data from an experimental sea dike, provided insights into the deterioration mechanisms. Based on the experimental results, a constitutive model was developed, accounting for the coupled effects of salinity and lime content.

Short bio:

Cen is a third-year PhD student at Navier Laboratory, under the supervision of Prof. Yujun CUI (ENPC), Dr. Nadia BENAHMED (INRAE) and Ms. Sylvie NICAISE (INRAE). His research focuses on the hydro-mechanical behaviour of treated soils in marine environment.