Contents
Preface
Notation Index
Chapter 1 Classification and identification properties of soils
1.1 Agricultural and engineering soil
1.2 Engineering definitions
1.3 Clay deposits
1.4 Soil classification
1.5 Common types of soil
1.6 Soil classification and description
1.7 Soil properties
1.8 Soil physical relations
Exercises
Chapter 2 Soil water, permeability and flow
2.1 Subsurface water
2.2 Flow of water through soils
2.3 Darcy’s Law of saturated flow
2.4 Coefficient of permeability
2.5 Determination of k in the laboratory
2.6 Determination of k in the field
2.7 Approximation of k
2.8 General differential equation of flow
2.9 Potential and stream functions
2.10 Flow nets
2.11 Hydraulic gradient
2.12 Calculation of seepage quantities from a flow net
2.13 Drawing a flow net
2.14 Critical hydraulic gradient
2.15 Seepage forces
2.16 Alleviation of piping
2.17 Design of filters
2.18 Total and effective stress
2.19 Capillarity
2.20 Earth dams
2.21 The problem of stratification
2.22 Calculation of seepage quantities in an anisotropic soil
2.23 Permeability of sedimentary deposits
2.24 Seepage through soils of different permeabilities
2.25 Refraction of flow lines at interfaces
Exercises
Chapter 3 Shear strength of soils
3.1 Friction
3.2 Complex stress
3.3 The Mohr circle diagram
3.4 Cohesion
3.5 Coulomb’s law of soil shear strength
3.6 Modified Coulomb’s law
3.7 The Mohr-Coulomb yield theory
3.8 Determination of the shear strength parameters
3.9 Determination of the total stress parameters
3.10 Determination of the effective stress parameters
3.11 The pore pressure coefficients A and B
3.12 The triaxial extension test
3.13 Behaviour of soils under shear
3.14 Variation of the pore pressure coefficient A
3.15 Operative strengths of soils
3.16 Space diagonal and octahedral plane
3.17 Sensitivity of clays
3.18 Activity of a clay
3.19 Residual strength of soil
Exercises
Chapter 4 Elements of stress analysis
4.1 Stress-strain relationships
4.2 The state of stress at a point within a soil mass
4.3 Stresses induced by the self weight of the soil
4.4 Stresses induced by applied loads
4.5 Influence charts for vertical stress increments
4.6 Bulbs of pressure
4.7 Shear stresses
4.8 Contact pressure
Exercises
Chapter 5 Stability of slopes
5.1 Granular materials
5.2 Soils with two strength components
5.3 Methods of investigating slope stability
5.4 Total stress analysis
5.5 Effective stress analysis
5.6 Planar failure surfaces
5.7 Slope stability analysis to Eurocode 7
Exercises
Chapter 6 Lateral earth pressure
6.1 Introduction
6.2 Active and passive earth pressure
6.3 Active pressure in cohesionless soils
6.4 Surcharges
6.5 The effect of cohesion on active pressure
6.6 Choice of method for prediction of active pressure
6.7 Design parameters for different soil types
6.8 The choice of backfill material
6.9 Earth pressure at rest
6.10 Influence of wall yield on design
6.11 Strutted excavations
6.12 Passive pressure in cohesionless soils
6.13 The effect of cohesion on passive pressure
6.14 Operative values for phi and c for passive pressure
Exercises
Chapter 7 Earth retaining structures
7.1 Main types of earth retaining structures
7.2 Gravity walls
7.3 Embedded walls
7.4 Design of earth retaining structures
7.4.1 Design to BS8002: 1994
7.4.2 Geotechnical design to Eurocode 7
7.5 Design of gravity walls
7.6 Design of sheet pile walls
7.7 Reinforced soil
7.8 Soil nailing
Exercises
Chapter 8 Bearing capacity of soils
8.1 Bearing capacity terms
8.2 Types of foundation
8.3 Analytical methods for the determination of the ultimate bearing capacity of a foundation
8.4 Determination of the safe bearing capacity
8.5 The effect of ground water on bearing capacity
8.6 Developments in bearing capacity equations
8.7 Designing spread foundations to Eurocode 7
8.8 Non-homogeneous soil conditions
8.9 In situ testing for ultimate bearing capacity
8.10 Pile foundations
8.11 Designing pile foundations to Eurocode 7
8.12 Pile groups
Exercises
Chapter 9 Foundation settlement and soil compression
9.1 Settlement of a foundation
9.2 Immediate settlement
9.3 Consolidation settlement
9.4 Two-dimensional stress paths
Exercises
Chapter 10 Rate of foundation settlement
10.1 Analogy of consolidation settlement
10.2 Distribution of the initial excess pore pressure, ui
10.3 Terzaghi’s theory of consolidation
10.4 Average degree of consolidation
10.5 Drainage path length
10.6 Determination of the coefficient of consolidation, cv, from the consolidation test
10.7 Determination of the permeability coefficient from the consolidation test
10.8 Determination of the consolidation coefficient from the triaxial test
10.9 The model law of consolidation
10.10 Consolidation during construction
10.11 Consolidation by drainage in two and three dimensions
10.12 Numerical determination of consolidation rates
10.13 Construction pore pressures in an earth dam
10.14 Numerical solutions for two- and three-dimensional consolidation
10.15 Sand drains
Exercises
Chapter 11 Compaction and soil mechanics aspects of highway design
11.1 Laboratory compaction of soils
11.2 Main types of compaction plant
11.3 Moisture content value for in situ compaction
11.4 Specification of the field compacted density
11.5 In situ tests carried out during earthwork construction
11.6 Highway design
Exercises
Chapter 12 Unsaturated soils
12.1 Unsaturated, soils
12.2 Measurement of soil suction
12.3 Soil structure changes with water content
12.4 Stress states in unsaturated soils
Chapter 13 Critical state theory
13.1 Critical state theory
13.2 Symbols
13.3 Critical state
13.4 Isotropic consolidation
13.5 Stress paths in three-dimensional stress space
13.6 The critical state line
13.7 Representation of triaxial tests in p : q : v space
13.8 The Roscoe surface
13.9 The overall state boundary
13.10 Equation of the Hvorslev surface
13.11 Residual and critical strength states
Chapter 14 Site investigation and ground improvement
14.1 Desk study
14.2 Site reconnaissance
14.3 Ground investigation
14.4 Site investigation reports
14.5 Ground improvement
Environmental geotechnics
References
Index
[Top of page]
|
