Effects of thermal cycles on soil behaviour: theoretical and experimental studies

Fundamental understanding and proper modelling of soil behaviour under thermal cycles are increasingly important essential for the analysis design many emerging infrastructures, such as geothermal structures embankment-atmosphere interactions a changing climate. Previous studies mainly focus on monotonic loading thermo-mechanical soils. Based unified, state-dependent theoretical framework in form compliance matrix, new constitutive model is developed to simulate cyclic saturated unsaturated This bounding surface formulated terms Bishop’s stress suction. Apart from surfaces, memory incorporated To verify model, computed results compared with measured data heating-cooling tests soils at various suctions. this two engineering applications analysed including thermally loaded floating energy pile foundations deep excavation ground. Consistent obtained between data.