Title | Principles of Geotechnical Engineering |
---|---|

Tags | Geotechnical Engineering Geotechnical |

Language | English |

File Size | 33.1 MB |

Total Pages | 770 |

Cover Statement Title Page Copyright Dedication Preface About the Authors Contents Ch 1: Geotechnical Engineering—A Historical Perspective 1.1 Introduction 1.2 Geotechnical Engineering Prior to the 18th Century 1.3 Preclassical Period of Soil Mechanics (1700–1776) 1.4 Classical Soil Mechanics—Phase I (1776–1856) 1.5 Classical Soil Mechanics—Phase II (1856–1910) 1.6 Modern Soil Mechanics (1910–1927) 1.7 Geotechnical Engineering after 1927 1.8 End of an Era References Ch 2: Origin of Soil and Grain Size 2.1 Introduction 2.2 Rock Cycle and the Origin of Soil 2.3 Rock-Forming Minerals, Rock and Rock Structures 2.4 Soil-Particle Size 2.5 Clay Minerals 2.6 Specific Gravity (Gs) 2.7 Mechanical Analysis of Soil 2.8 Particle-Size Distribution Curve 2.9 Particle Shape 2.10 Summary Problems Critical Thinking Problem References Ch 3: Weight–Volume Relationships 3.1 Introduction 3.2 Weight–Volume Relationships 3.3 Relationships among Unit Weight, Void Ratio, Moisture Content, and Specific Gravity 3.4 Relationships among Unit Weight, Porosity, and Moisture Content 3.5 Various Unit Weight Relationships 3.6 Relative Density 3.7 Comments on emax and emin 3.8 Correlations between emax, emin, emax – emin, and Median Grain Size (D50) 3.9 Summary Problems Critical Thinking Problems References Ch 4: Plasticity and Structure of Soil 4.1 Introduction 4.2 Liquid Limit (LL) 4.3 Plastic Limit (PL) 4.4 Shrinkage Limit (SL) 4.5 Liquidity Index and Consistency Index 4.6 Activity 4.7 Plasticity Chart 4.8 Soil Structure 4.9 Summary Problems Critical Thinking Problems References Ch 5: Classification of Soil 5.1 Introduction 5.2 Textural Classification 5.3 Classification by Engineering Behavior 5.4 AASHTO Classification System 5.5 Unified Soil Classification System 5.6 Comparison between the AASHTO and Unified Systems 5.7 Summary Problems Critical Thinking Problem References Ch 6: Soil Compaction 6.1 Introduction 6.2 Compaction—General Principles 6.3 Standard Proctor Test 6.4 Factors Affecting Compaction 6.5 Modified Proctor Test 6.6 Empirical Relationships 6.7 Structure of Compacted Clay Soil 6.8 Effect of Compaction on Cohesive Soil Properties 6.9 Field Compaction 6.10 Specifications for Field Compaction 6.11 Determination of Field Unit Weight of Compaction 6.12 Compaction of Organic Soil and Waste Materials 6.13 Evaluation of Soils as Compaction Material 6.14 Special Compaction Techniques 6.15 Summary and General Comments Problems Critical Thinking Problem References Ch 7: Permeability 7.1 Introduction 7.2 Bernoulli’s Equation 7.3 Darcy’s Law 7.4 Hydraulic Conductivity 7.5 Laboratory Determination of Hydraulic Conductivity 7.6 Relationships for Hydraulic Conductivity—Granular Soil 7.7 Relationships for Hydraulic Conductivity—Cohesive Soils 7.8 Directional Variation of Permeability 7.9 Equivalent Hydraulic Conductivity in Stratified Soil 7.10 Permeability Test in the Field by Pumping from Wells 7.11 In Situ Hydraulic Conductivity of Compacted Clay Soils 7.12 Summary and General Comments Problems Critical Thinking Problem References Ch 8: Seepage 8.1 Introduction 8.2 Laplace’s Equation of Continuity 8.3 Continuity Equation for Solution of Simple Flow Problems 8.4 Flow Nets 8.5 Seepage Calculation from a Flow Net 8.6 Flow Nets in Anisotropic Soil 8.7 Mathematical Solution for Seepage 8.8 Uplift Pressure under Hydraulic Structures 8.9 Seepage through an Earth Dam on an Impervious Base 8.10 L. Casagrande’s Solution for Seepage through an Earth Dam 8.11 Filter Design 8.12 Summary Problems References Ch 9: In Situ Stresses 9.1 Introduction 9.2 Stresses in Saturated Soil without Seepage 9.3 Stresses in Saturated Soil with Upward Seepage 9.4 Stresses in Saturated Soil with Downward Seepage 9.5 Seepage Force 9.6 Heaving in Soil Due to Flow around Sheet Piles 9.7 Use of Filters to Increase the Factor of Safety against Heave 9.8 Effective Stress in Partially Saturated Soil 9.9 Capillary Rise in Soils 9.10 Effective Stress in the Zone of Capillary Rise 9.11 Summary and General Comments Problems Critical Thinking Problem References Ch 10: Stresses in a Soil Mass 10.1 Introduction 10.2 Normal and Shear Stresses on a Plane 10.3 The Pole Method of Finding Stresses along a Plane 10.4 Stresses Caused by a Point Load 10.5 Vertical Stress Caused by a Vertical Line Load 10.6 Vertical Stress Caused by a Horizontal Line Load 10.7 Vertical Stress Caused by a Vertical Strip Load (Finite Width and Infinite Length) 10.8 Linearly Increasing Vertical Loading on an Infinite Strip 10.9 Vertical Stress Due to Embankment Loading 10.10 Vertical Stress below the Center of a Uniformly Loaded Circular Area 10.11 Vertical Stress at Any Point below a Uniformly Loaded Circular Area 10.12 Vertical Stress Caused by a Rectangularly Loaded Area 10.13 Influence Chart for Vertical Pressure 10.14 Summary and General Comments Problems Critical Thinking Problem References Ch 11: Compressibility of Soil 11.1 Introduction 11.2 Contact Pressure and Settlement Profile 11.3 Relations for Elastic Settlement Calculation 11.4 Fundamentals of Consolidation 11.5 One-Dimensional Laboratory Consolidation Test 11.6 Void Ratio–Pressure Plots 11.7 Normally Consolidated and Overconsolidated Clays 11.8 General Comments on Conventional Consolidation Test 11.9 Effect of Disturbance on Void Ratio–Pressure Relationship 11.10 Calculation of Settlement from One-Dimensional Primary Consolidation 11.11 Correlations for Compression Index (Cc) 11.12 Correlations for Swell Index (Cs) 11.13 Secondary Consolidation Settlement 11.14 Time Rate of Consolidation 11.15 Determination of Coefficient of Consolidation 11.16 Calculation of Consolidation Settlement under a Foundation 11.17 A Case History—Settlement Due to a Preload Fill for Construction of Tampa VA Hospital 11.18 Methods for Accelerating Consolidation Settlement 11.19 Precompression 11.20 Summary and General Comments Problems Critical Thinking Problem References Ch 12: Shear Strength of Soil 12.1 Introduction 12.2 Mohr–Coulomb Failure Criterion 12.3 Inclination of the Plane of Failure Caused by Shear 12.4 Laboratory Test for Determination of Shear Strength Parameters 12.5 Direct Shear Test 12.6 Drained Direct Shear Test on Saturated Sand and Clay 12.7 General Comments on Direct Shear Test 12.8 Triaxial Shear Test-General 12.9 Consolidated-Drained Triaxial Test 12.10 Consolidated-Undrained Triaxial Test 12.11 Unconsolidated-Undrained Triaxial Test 12.12 Unconfined Compression Test on Saturated Clay 12.13 Empirical Relationships between Undrained Cohesion (Cu) and Effective Overburden Pressure (σ́ o) 12.14 Sensitivity and Thixotropy of Clay 12.15 Strength Anisotropy in Clay 12.16 Vane Shear Test 12.17 Other Methods for Determining Undrained Shear Strength 12.18 Shear Strength of Unsaturated Cohesive Soils 12.19 Stress Path 12.20 Summary and General Comments Problems Critical Thinking Problem References Ch 13: Lateral Earth Pressure: At-Rest, Rankine, and Coulomb 13.1 Introduction 13.2 At-Rest, Active, and Passive Pressures 13.3 Earth Pressure At-Rest 13.4 Earth Pressure At-Rest for Partially Submerged Soil 13.5 Rankine’s Theory of Active Pressure 13.6 Theory of Rankine’s Passive Pressure 13.7 Yielding of Wall of Limited Height 13.8 Rankine Active and Passive Pressure with Sloping Backfill 13.9 Diagrams for Lateral Earth-Pressure Distribution against Retaining Walls 13.10 Coulomb’s Active Pressure 13.11 Graphic Solution for Coulomb’s Active Earth Pressure 13.12 Coulomb’s Passive Pressure 13.13 Active Force on Retaining Walls with Earthquake Forces 13.14 Common Types of Retaining Walls in the Field 13.15 Summary and General Comments Problems Critical Thinking Problem References Ch 14: Lateral Earth Pressure: Curved Failure Surface 14.1 Introduction 14.2 Retaining Walls with Friction 14.3 Properties of a Logarithmic Spiral 14.4 Procedure for Determination of Passive Earth Pressure (Pp)—Cohesionless Backfill 14.5 Coefficient of Passive Earth Pressure (Kp) 14.6 Caquot and Kerisel Solution for Passive Earth Pressure (Granular Backfill) 14.7 Passive Force on Walls with Earthquake Forces 14.8 Braced Cuts—General 14.9 Determination of Active Thrust on Bracing Systems of Open Cuts—Granular Soil 14.10 Determination of Active Thrust on Bracing Systems for Cuts—Cohesive Soil 14.11 Pressure Variation for Design of Sheetings, Struts, and Wales 14.12 Summary Problems References Ch 15: Slope Stability 15.1 Introduction 15.2 Factor of Safety 15.3 Stability of Infinite Slopes 15.4 Infinite Slope with Steady-state Seepage 15.5 Finite Slopes—General 15.6 Analysis of Finite Slopes with Plane Failure Surfaces (Culmann’s Method) 15.7 Analysis of Finite Slopes with Circular Failure Surfaces—General 15.8 Mass Procedure—Slopes in Homogeneous Clay Soil with Ø = 0 15.9 Recent Developments on Critical Circle of Clay Slopes (Ø = 0) 15.10 Mass Procedure—Slopes in Homogeneous Ć ― Ǿ́́́' Soil 15.11 Ordinary Method of Slices 15.12 Bishop’s Simplified Method of Slices 15.13 Stability Analysis by Method of Slices for Steady-state Seepage 15.14 Solutions for Steady-state Seepage 15.15 A Case History of Slope Failure 15.16 Morgenstern’s Method of Slices for Rapid Drawdown Condition 15.17 Fluctuation of Factor of Safety of Slopes in Clay Embankment on Saturated Clay 15.18 Summary Problems References Ch 16: Soil Bearing Capacity for Shallow Foundations 16.1 Introduction 16.2 Ultimate Soil-Bearing Capacity for Shallow Foundations 16.3 Terzaghi’s Ultimate Bearing Capacity Equation 16.4 Effect of Groundwater Table 16.5 Factor of Safety 16.6 General Bearing Capacity Equation 16.7 A Case History for Evaluation of the Ultimate Bearing Capacity 16.8 Ultimate Load for Shallow Foundations Under Eccentric Load 16.9 Bearing Capacity of Sand Based on Settlement 16.10 Plate-Load Test 16.11 Summary and General Comments Problems Critical Thinking Problem References Ch 17: Subsoil Exploration 17.1 Introduction 17.2 Planning for Soil Exploration 17.3 Boring Methods 17.4 Common Sampling Methods 17.5 Sample Disturbance 17.6 Correlations for Standard Penetration Test 17.7 Other In Situ Tests 17.8 Rock Coring 17.9 Soil Exploration Report 17.10 Summary Problems References Appendix - A Answers to Selected Problems Index

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