Fundamentals of geotechnical engineering / Braja M. Das

Includes bibliographical references and index.

1. GEOTECHNICAL ENGINEERING - FROM THE BEGINNING. Geotechnical Engineering Prior to the 18th Century. Pre-classical Period of Soil Mechanics (1700-1776). Classical Soil Mechanics - Phase I (1776-1856). Classical Soil Mechanics - Phase II (1856-1910). Modern Soil Mechanics (1910-1927). Geotechnical Engineering after 1927. End of an Era. 2. SOIL DEPOSITS - ORIGIN, GRAIN-SIZE, AND SHAPE. Rock Cycle and the Origin of Soil. Soil Deposits--General. Residual Soil. Gravity Transported Soil. Alluvial Deposits. Lacustrine Deposits. Glacial Deposits. Aeolian Soil Deposits. Organic Soil. Soil-Particle Size. Clay Minerals. Specific Gravity (Gs). Mechanical Analysis of Soil. Effective Size, Uniformity Coefficient, and Coefficient of Gradation. Particle Shape. 3. WEIGHT- VOLUME RELATIONSHIPS AND PLASTICITY. Weight-Volume Relationships. Relationships among Unit Weight, Void Ratio, Moisture Content, and Specific Gravity. Relationships among Unit Weight, Porosity, and Moisture Content. Relative Density. Consistency of Soil. Activity. Liquidity Index. Plasticity Chart. 4. SOIL CLASSIFICATION. AASHTO Soil Classification System. Unified Classification System. 5. SOIL COMPACTION. Compaction - General Principles. Standard Proctor Test. Factors Affecting Compaction. Modified Proctor Test. Empirical Relationships. Field Compaction. Specifications for Field Compaction. Determination of Field Unit Weight after Compaction. Effect of Compaction on Cohesive Soil Properties. 6. HYDRAULIC CONDUCTIVITY. Bernoulli's Equation. Darcy's Law. Hydraulic Conductivity. Laboratory Determination of Hydraulic Conductivity. Empirical Relations for Hydraulic Conductivity. Equivalent Hydraulic Conductivity in Stratified Soil. Permeability Test in the Field by Pumping from Wells. 7. SEEPAGE. Laplace's Equation of Continuity. Flow Nets. Seepage Calculation from a Flow Net. Flow Nets in Anisotropic Soil. 8. STRESSES IN A SOIL MASS. EFFECTIVE STRESS CONCEPT. Stresses in Saturated Soil without Seepage. Stresses in Saturated Soil with Seepage. Seepage Force. Heaving in Soil Due to Flow around Sheet Piles. VERTICAL STRESS INCREASE DUE TO VARIOUS TYPES OF LOADING. Stress Cause by a Point Load. Vertical Stress Caused by a Line Load. Vertical Stress Below a Uniformly Loaded Circular Area. Vertical Stress Caused by a Rectangularly Loaded Area. 9. CONSOLIDATION. Fundamentals of Consolidation. One-Dimensional Laboratory Consolidation Test. Void Ratio-Pressure Plots. Normally Consolidated and Overconsolidated Clays. Effect of Disturbance on Void Ratio-Pressure Relationship. Calculation of Settlement from One-Dimensional Primary Consolidation. Compression Index (Cc) and Swell Index (Cs). Settlement from Secondary Consolidation. Time Rate of Consolidation. Coefficient of Consolidation. Calculation of Primary Consolidation Settlement under a Foundation. Skempton-Bjerrum Modification for Consolidation Settlement. 10. SHEAR STRENGTH OF SOIL. Mohr-Coulomb Failure Criteria. Inclination of the Plane of Failure Caused by Shear. LABORATORY DETERMINATION OF SHEAR STRENGTH PARAMETERS. Direct Shear Test. Triaxial Shear Test. Consolidated-Drained Test. Consolidated-Undrained Test. Unconsolidated-Undrained Test. Unconfined Compression Test on Saturated Clay. Sensitivity and Thixotropy of Clay. Anisotropy in Undrained Shear Strength. 11. GROUND IMPROVEMENT. CHEMICAL STABILIZATION. Lime Stabilization. Cement Stabilization. Fly-Ash Stabilization. MECHANICAL STABILIZATION. Vibroflotation. Dynamic Compaction. Blasting. Precompression. Sand Drains. 12. SUBSURFACE EXPLORATION. Subsurface Exploration Program. Exploratory Borings in the Field. Procedures for Sampling Soil. Split-Spoon Sampling. Sampling with Thin Wall Tube. Observation of Water Levels. Vane Shear Test. Cone Penetration Test. Pressuremeter Test (PMT). Dilatometer Test. Coring of Rocks. Preparation of Boring Logs. Geophysical Exploration. Soil Exploration Report. 13. SLOPE STABILITY. Factor of Safety. Stability of Infinite Slopes. Finite Slopes. Analysis of Finite Slope with Circularly Cylindrical Failure Surface--General. Mass Procedure of Stability Analysis (Circularly Cylindrical Failure Surface). Method of Slices. Bishop's Simplified Method of Slices. Analysis of Simple Slopes with Steady-State Seepage. Mass Procedure for Stability of Clay Slopes with Earthquake Forces (c'-?' Soil). 14. LATERAL EARTH PRESSURE. Earth Pressure at Rest. Rankine's Theory of Active and Passive Earth Pressures. Diagrams for Lateral Earth Pressure Distribution against Retaining Walls. Rankine's Active Pressure with Sloping Granular Backfill. Coulomb's Earth Pressure Theory-- Retaining Walls with Friction. Passive Pressure Assuming Curved Failure Surface in Soil. 15. RETAINING WALLS AND BRACED CUTS. RETAINING WALLS. Retaining Walls--General. Proportioning Retaining Walls. Application of Lateral Earth Pressure Theories to Design. Check for Overturning. Check for Sliding along the Base. Check for Bearing Capacity Failure MECHANICALLY STABILIZED EARTH RETAINING WALLS. Mechanically Stabilized Earth. General Design Considerations. Retaining Walls with Metallic Strip Reinforcement. Step-by-Step Design Procedure Using Metallic Strip Reinforcement. Retaining Walls with Geotextile Reinforcement. Retaining Walls with Geogrid Reinforcement. BRACED CUTS. Braced Cuts--General. Lateral Earth Pressure in Braced Cuts. Soil Parameters for Cuts in Layered Soil. Design of Various Components of a Braced Cut. Heave of the Bottom of a Cut in Clay. Lateral Yielding of Sheet Piles and Ground Settlement. 16. SHALLOW FOUNDATIONS - BEARING CAPACITY. Ultimate Bearing Capacity of Shallow Foundations--General Concepts. Terzaghi's Ultimate Bearing Capacity Theory. Modifications to Terzaghi's Bearing Capacity Equation. Modification of Bearing Capacity Equations for Water Table. The Factor of Safety. Eccentrically Loaded Foundations. Reduction Factor Method for Eccentrically Loaded Strip Foundations on Granular Soil. Foundations with Two-Way Eccentricity. Mat Foundations--Common Types. Bearing Capacity for Mat Foundations. Compensated Foundations . 17. SETTLEMENT OF SHALLOW FOUNDATIONS. Elastic Settlement of Foundations on Saturated Clay Soils (? s = 0.5). Elastic Settlement Based on Theory of Elasticity. Range of Material Parameters for Computing Elastic Settlement. Settlement of Sandy Soil: Use of Strain Influence Factor. Allowable Bearing Pressure for Spread Footings in Sand Based on Settlement Consideration. Allowable Bearing Pressure for Mat Foundations in Sand. 18. PILE FOUNDATIONS Need for Pile Foundations. Types of Piles and Their Structural Characteristics. Estimation of Pile Length. Installation of Piles. Load Transfer Mechanism. Equations for Estimation of Pile Capacity. Calculation of qp - Meyerhof's Method. Frictional Resistance, Qs. Allowable Pile Capacity. Load-Carrying Capacity of Pile Point Resting on Rock. Elastic Settlement of Piles. Pile Load Tests. Pile-Driving Formulas. Negative Skin Friction. Group Piles - Efficiency. Elastic Settlement of Group Piles. Consolidation Settlement of Group Piles. 19. DRILLED SHAFTS Types of Drilled Shafts. Construction Procedures. Estimation of Load-Bearing Capacity. Drilled Shafts in Sand-Net Ultimate Load. Drilled Shafts in Clay-Net Ultimate Load. Settlement of Drilled Shafts at Working Load. Load-Bearing Capacity Based on Settlement. APPENDIX A: GEOSYNTHETICS

FUNDAMENTALS OF GEOTECHNICAL ENGINEERING is a concise combination of the essential components of Braja Das' market leading texts, Principles of Geotechnical Engineering and Principles of Foundation Engineering. The text includes the fundamental concepts of soil mechanics as well as foundation engineering without becoming cluttered with excessive details and alternatives. FUNDAMENTALS features a wealth of worked out examples, as well as figures to help students with theory and problem solving skills. Das maintains the careful balance of current research and practical field applications that has made his books leaders in this area.

600-699 624.1