| Issue |
E3S Web of Conf.
Volume 382, 2023
8th International Conference on Unsaturated Soils (UNSAT 2023)
|
|
|---|---|---|
| Article Number | 11005 | |
| Number of page(s) | 6 | |
| Section | Effects of Microstructure | |
| DOI | https://doi.org/10.1051/e3sconf/202338211005 | |
| Published online | 24 April 2023 | |
Consideration of microstructure in modelling the hydro-mechanical behaviour of unsaturated soils
1 Ph.D. student, School of Engineering, Cardiff University, Cardiff, United Kingdom
2 Professor, School of Engineering, Cardiff University, Cardiff, United Kingdom.
3 Professor, School of Engineering, Cardiff University, Cardiff, United Kingdom.
4 Professor, School of Civil Engineering, Beijing Jiaotong University, Beijing, China.
* Corresponding author: cleall@cardiff.ac.uk
The hydro-mechanical behaviour of unsaturated soils is often highly influenced by the microstructure; therefore, it can be beneficial to consider the effect of microstructure in a hydro-mechanical constitutive model. This paper considers the use of a microstructure-related model that adopts the effective degree of saturation as a microstructural index. The model can be used to reproduce the hydro-mechanical behaviour while the effect of the microstructure is considered. For comparison, a non-microstructuredependent model is also employed. The models are applied to simulate the behaviour of two different soilsand a comparison of the models’ performance in simulating triaxial test behaviour is made. Based on the comparison with experimental results and the non-microstructure-dependent model, it can be concluded thatthe adoption of the effective degree of saturation is beneficial to studying the hydro-mechanical behaviour of unsaturated soils affected by the microstructure.
© The Authors, published by EDP Sciences, 2023
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