Bwosles

Contents

Preface ............................................................................................................ About the Computer Programs ........................................................................ List of Primary Symbols Used in Text .............................................................. 1. Introduction.............................................................................................
1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 Foundations: Their Importance and Purpose ............................................... Foundation Engineering ................................................................................ Foundations: Classifications and Select Definitions ..................................... Foundations: GeneralRequirements ............................................................ Foundations: Additional Considerations ....................................................... Foundations: Selection of Type ..................................................................... The International System of Units (SI) and the Foot-pound-second (Fps) System................................................................................................. Computational Accuracy versus Design Precision ....................................... Computer Programs in Foundation Analysis and Design .............................

xiii xvii xix 1
1 1 3 6 7 9 9 12 13

2.

Geotechnical and Index Properties: Laboratory Testing; Settlement and Strength Correlations..................................................
2.1 2.2 2.3 2.4 2.5 Introduction .................................................................................................... Foundation Subsoils ...................................................................................... Soil Volume and Density Relationships ........................................................ Major Factors That Affect theEngineering Properties of Soils ..................... Routine Laboratory Index Soil Tests .............................................................

15
15 16 17 21 24

This page has been reformatted by Knovel to provide easier navigation.

v

vi

Contents
2.6 2.7 2.8 2.9 Soil Classification Methods in Foundation Design ........................................ Soil MaterialClassification Terms ................................................................. In Situ Stresses and Ko Conditions ............................................................... Soil Water; Soil Hydraulics ............................................................................ 29 35 39 46 56 90 112 113 121 127 131

2.10 Consolidation Principles................................................................................ 2.11 Shear Strength ............................................................................................... 2.12 Sensitivity and Thixotropy ............................................................................. 2.13 Stress Paths .................................................................................................. 2.14Elastic Properties of Soil ................................................................................ 2.15 Isotropic and Anisotropic Soil Masses .......................................................... Problems ..................................................................................................................

3.

Exploration, Sampling, and In Situ Soil Measurements......................
3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 Data Required ................................................................................................ Methods of Exploration .................................................................................. Planning the Exploration Program ................................................................ Soil Boring...