A new domain model for estimating water distribution in soil pores during the drying and wetting processes
Zhai Q. Xiang K. Rahardjo H. Satyanaga A. Dai G. Gong W. Zhao X.
5 September 2023Elsevier B.V.
Engineering Geology
2023#322
It is well known that both the soil-water characteristic curve (SWCC) and hydraulic conductivity function (HCF) of unsaturated soils are hysteretic. Modeling the hysteresis behavior of unsaturated soil is crucial for understanding the hydraulic properties of unsaturated soil and solving geotechnical problems in practice. There have been two types of models, the empirical model and the domain model, proposed to describe SWCC hysteresis. The results from the empirical model are subject to the model parameters, and the domain model has a physical theoretical background. However, the application of the domain model requires calibration using experimental data. In this technical note, a new domain model is proposed for estimating the water distribution in soil during both the drying and wetting processes. Consequently, the main wetting curve and the drying scanning curve can be estimated using the proposed domain model in this study. The estimated results from the proposed model agree well with the experimental data (a total of 16 sets) from different studies. The method proposed in this technical note provides a reliable approach for estimating water distribution in pores with different sizes for various types of soil.
Domain model , Hysteresis of SWCC , Improved capillary model , Soil-water distribution
Text of the article Перейти на текст статьи
Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, School of Civil Engineering, Southeast University, Nanjing, 210096, China
School of Civil and Environmental Engineering, Nanyang Technological University, Block N1, Nanyang Ave, Singapore, 639798, Singapore
Department of Civil and Environmental Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Kabanbay Batyr Ave., 53, Nur-Sultan, 010000, Kazakhstan
Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education
School of Civil and Environmental Engineering
Department of Civil and Environmental Engineering
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026