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Unsaturated soils : a fundamental interpretation of soil behaviour / E.J. Murray, V. Sivakumar

By: Contributor(s): Resource type: Ressourcentyp: Buch (Online)Book (Online)Language: English Publisher: Chichester, U.K ; Ames, Iowa : Wiley-Blackwell, 2010Edition: Online-AusgDescription: Online-Ressource (1 online resource (xviii, 284 p.)) : illISBN:
  • 9781282654341
  • 1282654349
  • 9781444325041
Subject(s): Additional physical formats: 1444332120 | 9781444332124 | 1282653822 | Erscheint auch als: Unsaturated soils. Druck-Ausgabe Chichester [u.a.] : Wiley-Blackwell, 2010. XVIII, 284 SDDC classification:
  • 624.1/5136
  • 624.15136
RVK: RVK: ZI 6130LOC classification:
  • TA711
Online resources: Summary: An understanding of the mechanical properties of unsaturated soils is crucial for geotechnical engineers worldwide, as well as to those concerned with the interaction of structures with the ground. This book deals principally with fine-grained clays and silts, or soils containing coarser sand and gravel particles but with a significant percentage of fines. The study of unsaturated soil is a practical subject, linking fundamental science to nature. Soils in general are inherently variable and their behaviour is not easy to analyse or predict, and unsaturated soils raise the complexity to a higher level. Even amongst practicing engineers, there is often lack of awareness of the intricacies of the subject. This book offers a perspective of unsaturated soils based on recent research and demonstrates how this dovetails with the general discipline of soil mechanics. Following an introduction to the basic soil variables, the phases, the phase interactions and the relevance of soil structure, an up-to-date review of laboratory testing techniques is presented. This includes suction measurement and control techniques in triaxial cell testing. This is followed by an introduction to stress state variables, critical state and theoretical models in unsaturated soils. A detailed description of the thermodynamic principles as applied to multi-phase materials under equilibrium conditions follows. These principles are then used to explore and develop a fundamental theoretical basis for analysing unsaturated soils. Soil structure is broken down into its component parts to develop equations describing the dual stress regime. The critical state strength and compression characteristics of unsaturated soils are examined and it is shown how the behaviour may be viewed as a three-dimensional model in dimensionless stress-volume space. The analysis is then extendedSummary: Intro -- Unsaturated Soils -- Contents -- Preface -- Acknowledgements -- Introduction -- Symbols -- 1 Properties of Unsaturated Soils -- 1.1 Nature and genesis of unsaturated soils -- 1.2 Soil variables -- 1.3 Particle properties -- 1.4 Phase properties and interactions -- 1.5 Soil structure -- 1.6 Experimental techniques for examining pore size distribution -- 1.7 Pore size distribution -- 1.8 Conclusions -- 2 Suction Measurement and Control -- 2.1 Introduction -- 2.2 Techniques for measurement of suction -- 2.3 Control of suction in laboratory tests -- 2.4 Conclusions -- 3 Laboratory Techniques -- 3.1 Introduction -- 3.2 Material selection and specimen preparation -- 3.3 Experimental techniques for volume change and strength measurements -- 3.4 Essential measurements -- 3.5 Further details of triaxial and stress path testing techniques -- 3.6 Conclusions -- 4 Background to the Stresses, Strains, Strength, Volume Change and Modelling of Unsaturated Soil -- 4.1 Introduction -- 4.2 Stresses in soils -- 4.3 Strains in soils -- 4.4 Constitutive modelling -- 4.5 Critical state framework for saturated soils -- 4.6 The constitutive Barcelona Basic Model for unsaturated soils -- 4.7 Extended constitutive and elasto-plastic critical state frameworks for unsaturated soils -- 4.8 Concluding remarks -- 5 Thermodynamics of Soil Systems -- 5.1 Introduction -- 5.2 Outline of thermodynamic principles and systems -- 5.3 Introduction to equilibrium and meta-stable equilibrium -- 5.4 Variables of state -- 5.5 Extensive and intensive variables -- 5.6 The laws of thermodynamics -- 5.7 Thermodynamic potentials -- 5.8 Thermodynamic potentials in practice -- 5.9 Conjugate thermodynamic pairings -- 5.10 Influence of a gravitational field -- 5.11 Concluding remarks -- 6 Equilibrium Analysis and Assumptions in Triaxial Testing -- 6.1 Introduction.PPN: PPN: 807310697Package identifier: Produktsigel: ZDB-26-MYL | ZDB-30-PAD | ZDB-30-PQE
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