Unsaturated Soil Mechanics

Informationen zum Autor NING LU, PhD, is Professor of Engineering at the Colorado School of Mines, where he teaches courses in soil mechanics and geotechnical engineering. He is the author of more than thirty papers published in peer-reviewed journals and serves as an editorial board member for the Journal of Geotechnical and Geoenvironmental Engineering. He is a member of the American Society of Civil Engineers and a lifetime member of the American Geophysical Union. WILLIAM J. LIKOS, PhD, is Assistant Professor of Civil and Environmental Engineering at the University of Missouri-Columbia, where he teaches courses in soil mechanics and soil behavior. He is a former geotechnical engineer with the U.S. Geological Survey. He is the author of numerous papers regarding unsaturated and expansive soil behavior, an editorial board member for the Geotechnical Testing Journal, and a member of ASCE and the Clay Minerals Society. Klappentext Unsaturated Soil Mechanics is the first book to provide a comprehensive introduction to the fundamental principles of unsaturated soil mechanics.* Offers extensive sample problems with an accompanying solutions manual.* Brings together the rapid advances in research in unsaturated soil mechanics in one focused volume.* Covers advances in effective stress and suction and hydraulic conductivity measurement. Zusammenfassung Unsaturated Soil Mechanics is the first book to provide a comprehensive introduction to the fundamental principles of unsaturated soil mechanics. Offers extensive sample problems with an accompanying solutions manual. Brings together the rapid advances in research in unsaturated soil mechanics in one focused volume. Inhaltsverzeichnis FOREWORD xvii PREFACE xix SYMBOLS xxi INTRODUCTION 1 1 STATE OF UNSATURATED SOIL 3 1.1 Unsaturated Soil Phenomena 3 1.1.1 Definition of Unsaturated Soil Mechanics 3 1.1.2 Interdisciplinary Nature of Unsaturated Soil Mechanics 4 1.1.3 Classification of Unsaturated Soil Phenomena 6 1.2 Scope and Organization of Book 8 1.2.1 Chapter Structure 8 1.2.2 Geomechanics and Geo-environmental Tracks 11 1.3 Unsaturated Soil in Nature and Practice 12 1.3.1 Unsaturated Soil in Hydrologic Cycle 12 1.3.2 Global Extent of Climatic Factors 12 1.3.3 Unsaturated Zone and Soil Formation 13 1.3.4 Unsaturated Soil in Engineering Practice 18 1.4 Moisture, Pore Pressure, and Stress Profiles 20 1.4.1 Stress in the Unsaturated State 20 1.4.2 Saturated Moisture and Stress Profiles: Conceptual Illustration 21 1.4.3 Unsaturated Moisture and Stress Profiles: Conceptual Illustration 22 1.4.4 Illustrative Stress Analysis 23 1.5 State Variables, Material Variables, and Constitutive Laws 26 1.5.1 Phenomena Prediction 26 1.5.2 Head as a State Variable 28 1.5.3 Effective Stress as a State Variable 30 1.5.4 Net Normal Stresses as State Variables 33 1.6 Suction and Potential of Soil Water 34 1.6.1 Total Soil Suction 34 1.6.2 Pore Water Potential 35 1.6.3 Units of Soil Suction 38 1.6.4 Suction Regimes and the Soil-Water Characteristic Curve 39 Problems 43 I FUNDAMENTAL PRINCIPLES 45 2 MATERIAL VARIABLES 47 2.1 Physical Properties of Air and Water 47 2.1.1 Unsaturated Soil as a Multiphase System 47 2.1.2 Density of Dry Air 48 2.1.3 Density of Water 50 2.1.4 Viscosity of Air and Water 53 2.1.5 Flow Regimes 55 2.2 Partial Pressure and Relative Humidity 57 2.2.1 Relative Humidity in Unsaturated Soil Mechanics 57 2.2.2 Composition and Partial Pressure of Air 57 2.2.3 Equilibrium between Free Water and Air 59 2.2.4 Equilibrium between Pore Water and Air 62 2.2.5 Relative Humidity 63 2.2.6 Dew Point 64 ...

Table des matières

FOREWORD.
 
PREFACE.
 
SYMBOLS.
 
INTRODUCTION.
 
1 STATE OF UNSATURATED SOIL.
 
1.1 Unsaturated Soil Phenomena.
 
1.2 Scope and Organization of Book.
 
1.3 Unsaturated Soil in Nature and Practice.
 
1.4 Moisture, Pore Pressure, and Stress Profiles.
 
1.5 State Variables, Material Variables, and Constitutive Laws.
 
1.6 Suction and Potential of Soil Water.
 
Problems.
 
I FUNDAMENTAL PRINCIPLES.
 
2 MATERIAL VARIABLES.
 
2.1 Physical Properties of Air and Water.
 
2.2 Partial Pressure and Relative Humidity.
 
2.3 Density of Moist Air.
 
2.4 Surface Tension.
 
2.5 Cavitation of Water.
 
Problems.
 
3 INTERFACIAL EQUILIBRIUM.
 
3.1 Solubility of Air in Water.
 
3.2 Air-Water-Solid Interface.
 
3.3 Vapor Pressure Lowering.
 
3.4 Soil-Water Characteristic Curve.
 
Problems.
 
4 CAPILLARITY.
 
4.1 Young-Laplace Equation.
 
4.2 Height of Capillary Rise.
 
4.3 Rate of Capillary Rise.
 
4.4 Capillary Pore Size Distribution.
 
4.5 Suction Stress.
 
Problems.
 
II STRESS PHENOMENA.
 
5 STATE OF STRESS.
 
5.1 Effective Stress in Unsaturated Soil.
 
5.2 Hysteresis.
 
5.3 Stress Tensor Representation.
 
5.4 Stress Control by Axis Translation.
 
5.5 Graphical Representation of Stress.
 
Problems.
 
6 SHEAR STRENGTH.
 
6.1 Extended Mohr-Coulomb (M-C) Criterion.
 
6.2 Shear Strength Parameters for the Extended M-C Criterion.
 
6.3 Effective Stress and the M-C Criterion.
 
6.4 Shear Strength Parameters for the M-C Criterion.
 
6.5 Unified Representation of Failure Envelope.
 
Problems.
 
7 SUCTION AND EARTH PRESSURE PROFILES.
 
7.1 Steady Suction and Water Content Profiles.
 
7.2 Steady Effective Stress Parameter and Stress Profiles.
 
7.3 Earth Pressure at Rest.
 
7.4 Active Earth Pressure.
 
7.5 Passive Earth Pressure.
 
Problems.
 
III FLOW PHENOMENA.
 
8 STEADY FLOWS.
 
8.1 Driving Mechanisms for Water and Airflow.
 
8.2 Permeability and Hydraulic Conductivity.
 
8.3 Hydraulic Conductivity Function.
 
8.4 Capillary Barriers.
 
8.5 Steady Infiltration and Evaporation.
 
8.6 Steady Vapor Flow.
 
8.7 Steady Air Diffusion in Water.
 
Problems.
 
9 TRANSIENT FLOWS.
 
9.1 Principles for Pore Liquid Flow.
 
9.2 Rate of Infiltration.
 
9.3 Transient Suction and Moisture Profiles.
 
9.4 Principles for Pore Gas Flow.
 
9.5 Barometric Pumping Analysis.
 
Problems.
 
IV MATERIAL VARIABLE MEASUREMENT AND MODELING.
 
10 SUCTION MEASUREMENT.
 
10.1 Overview of Measurement Techniques.
 
10.2 Tensiometers.
 
10.3 Axis Translation Techniques.
 
10.4 Electrical/Thermal Conductivity Sensors.
 
10.5 Humidity Measurement Techniques.
 
10.6 Humidity Control Techniques.
 
10.7 Filter Paper Techniques.
 
Problems.
 
11 HYDRAULIC CONDUCTIVITY MEASUREMENT.
 
11.1 Overview of Measurement Techniques.
 
11.2 Steady-State Measurement Techniques.
 
11.3 Transient Measurement Techniques.
 
Problems.
 
12 SUCTION AND HYDRAULIC CONDUCTIVITY MODELS.
 
12.1 Soil-Water Characteristic Curve Models.
 
12.2 Hydraulic Conductivity Models.
 
Problems.
 
REFERENCES.
 
INDEX.

Détails du produit

• Auteurs: William J Likos, William J. Likos, Likos William J., Lu, N Lu, Nin Lu, Ning Lu, Ning (Colorado School of Mines) Likos Lu, Ning Likos Lu, Lu Ning, LU NING LIKOS WILLIAM J
• Edition: Wiley, John and Sons Ltd
• Langues: Anglais
• Format d'édition: Livre Relié
• Sortie: 15.06.2004
• EAN: 9780471447313
• ISBN: 978-0-471-44731-3
• Pages: 592
• Catégories: Sciences naturelles, médecine, informatique, technique > Technique > Technique de la construction et de l'environnement; Bodenmechanik, Tragwerke, Bauingenieur- u. Bauwesen, Civil Engineering & Construction, Soil Constructions & Geotechnics, Grundbau / Geotechnik, Structures, Erd- u. Grundbau, Soil (Civil Engineering)