Description
This book aims to introduce the principle and design of various foundations, covering shallow foundations, mat foundations, earth retaining structures, excavations, pile foundations, and slope stability. Since the analysis and design of a foundation are based on the soil properties under short-term (undrained) or long-term (drained) conditions, the assessment of soil properties from the geotechnical site investigation and the concept of drained or undrained soil properties are discussed in the first two chapters. Foundation elements transfer various load combinations from the superstructure to the underlying soils or rocks. The load transfer mechanisms, vertical stress or earth pressure distributions, and failure modes of each foundation type are clearly explained in this book. After understanding the soil responses subjected to the loadings from the foundation, the design methods, required factors of safety, and improvement measures for each foundation type are elaborated.
This book presents both theoretical explication and practical applications for readers to easily comprehend the theoretical background, design methods, and practical applications and considerations. Each chapter provides relevant exercise examples and a problem set for self-practice. The analysis methods introduced in the book can be applied in actual analysis and design as they contain the most up-to-date knowledge of foundation design. This book is suitable for teachers and students to use in foundation engineering courses and engineers who are engaged in foundation design to create a technically sound, construction-feasible, and economical design of the foundation system.
Table of Contents
Chapter 1: Geotechnical Site Investigation
1.1 Introduction
1.2 Plan for subsurface exploration
1.3 Borehole exploration
1.4 Soil sampling methods
1.5 Sampling disturbance
1.6 Laboratory test
1.7 Field test
1.8 Groundwater investigation
1.9 Geophysical survey
1.10 Reports and interpretation
1.11 Summary and general comments
Chapter 2: Principles of foundation design
2.1 Introduction
2.2 Geotechnical analysis method
2.3 Estimation of design soil parameters
2.4 Type of loads and design loads
2.5 Foundation design methods
2.6 Characteristic soil parameters
2.7 Summary and general comments
Chapter 3: Shallow foundations
3.1 Introduction
3.2 Types of shallow foundations
3.3 Components of shallow foundation design
3.4 Vertical bearing capacity
3.5 Eccentrically loaded foundations
3.6 Foundation settlement
3.7 Applications of plate loading tests
3.8 Mat foundations
3.9 Summary and general comments
Chapter 4: Lateral earth pressure
4.1 Introduction
4.2 Lateral earth pressure at rest
4.3 Rankine earth pressure theory
4.4 Coulomb earth pressure theory
4.5 Displacement and earth pressure
4.6 Caquot and Kerisel’s solution
4.7 Earth pressure due to surcharge
4.8 Earth pressure due to earthquakes
4.9 Summary and general comments
Chapter 5: Earth retaining structures
5.1 Introduction
5.2 Types of earth retaining structures
5.3 Gravity and Semi-gravity walls
5.4 Reinforced walls
5.5 Nongravity walls
5.6 Summary and general comments
Chapter 6: Excavation
6.1 Introduction
6.2 Excavation methods
6.3 Stability analysis
6.4 Stress analysis
6.5 Deformation analysis
6.6 Control of excavation-induced movement
6.7 Monitoring system
6.8 Summary and general comments
Chapter 7: Pile foundations
7.1 Introduction
7.2 Classification of piles
7.3 Installation of piles and its impact on soils
7.4 Axial load capacity of piles
7.5 Lateral loaded piles
7.6 Pile load test
7.7 Settlement analysis of single piles
7.8 Negative skin friction
7.9 Group pile effect
Chapter 8: Slope stability
8.1 Introduction
8.2 Slope failure modes
8.3 Slope stability analyses
8.4 Stability charts
8.5 Stabilization methods
8.6 Summary and general comments
