Unsaturated Soils: Behavior, Mechanics and Conditions


Martin Hertz (Editor)

Series: Environmental Remediation Technologies, Regulations and Safety
BISAC: TEC003060

This compilation opens with an exploration of the vadose, or unsaturated zone, which is of utmost importance as the nexus between surface water and groundwater. It is the link between what happens on the surface and what happens below, inside the aquifers. As such, understanding this underground natural environment is essential for the sustainable development of society.

Due to the complexities involved in considering the hysteretic response of the Soil Water Characteristic Curve and its dependency on volume changes, these two features are often ignored in numerical studies of unsaturated soils. To facilitate their use in numerical modeling, a model for the Soil Water Characteristic Curve equation based on the bounding surface concept is proposed.

The authors go on to focus on the temperature distribution and water migration in unsaturated soil, which is of significant importance because these factors are related to the thermal-physical properties of soil. The changes in these properties may cause disastrous engineering problems such as the cracking of pavement, damage of structure foundation and fracture of pipelines.

Lastly, Unsaturated Soils: Behavior, Mechanics and Conditions addresses the measurement and expression of the mass chemical potential in the presence of superficial layers induced by a complex structure. By definition, the mass chemical potential of a constituent in a soil represents the variation of the internal energy of the medium when a unit mass of the constituent is transferred to a reference state with the entropy, volume and mass of the other constituents remaining constant.
(Imprint: Nova)



Table of Contents


Chapter 1. Unsaturated Soils: Aspects That Control Moisture Content
(Teresa M. Reyna, PhD, Santiago M. Reyna, PhD, and María Lábaque, Department of Production, Management and Environment, Department of Hydraulics, National University of Cordoba, Cordoba, Argentina)

Chapter 2. Some Aspects of Numerical Modelling of Hydraulic Hysteresis of Unsaturated Soils
(Javad Ghorbani and David W. Airey, School of Civil Engineering, University of Sydney, Camperdown, New South Wales, Australia)

Chapter 3. Temperature Distribution and Water Migration in Unsaturated Soil
(Bingxi Li, Yiran Hu, Fei Xu, Yaning Zhang, Shuang Liang, Wenyu Song and Zhongbin Fu, School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, China)

Chapter 4. Chemical Potential in Soils and Complex Media
(Jean-Claude Bénet, PhD, Laboratoire de Mécanique et Génie Civil, Université de Montpellier, Montpellier, France)


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