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Geotechnical Engineering: Principles and Practices of Soil Mechanics and Foundation Engineering
It gives me great pleasure to write a foreword for Geotechnical Engineering: Principles and
Practices of Soil Mechanics and Foundation Engineering. This comprehensive, pertinent and upto-
date volume is well suited for use as a textbook for undergraduate students as well as a
reference book for consulting geotechnical engineers and contractors. This book is well written
with numerous examples on applications of basic principles to solve practical problems.
The early history of geotechnical engineering and the pioneering work of Karl Terzaghi in
the beginning of the last century are described in Chapter 1. Chapters 2 and 3 discuss methods of
classification of soil and rock, the chemical and the mechanical weathering of rock, and soil phase
relationships and consistency limits for clays and silts. Numerous examples illustrate the
relationship between the different parameters. Soil permeability and seepage are investigated in
Chapter 4. The construction of flow nets and methods to determine the permeability in the
laboratory and in the field are also explained.
The concept of effective stress and the effect of pore water pressure on effective stress are
discussed in Chapter 5. Chapter 6 is concerned with stress increase in soil caused by surface load
and methods to calculate stress increase caused by spread footings, rafts, and pile groups. Several
examples are given in Chapter 6. Consolidation of soils and the evaluation of compressibility in
the laboratory by oedometer tests are investigated in Chapter 7. Determination of drained and
undrained shear strength by unconfined compression, direct shear or triaxial tests is treated in
Chapter 8.
The important subject of soil exploration is discussed in Chapter 9, including the use of
penetration tests such as SPT and CPT in different countries. The stability of slopes is investigated
in Chapter 10. Methods using plain and circular slip surfaces to evaluate stability are described
such as the methods proposed by Bishop, Fellenius, Morgenstern, and Spencer. Chapter 11
discusses methods to determine active and passive earth pressures acting on retaining and sheet
pile walls.
Bearing capacity and settlement of foundation and the evaluation of compressibility in the
laboratory by oedometer tests are discussed in Chapters 12, 13, and 14. The effect of inclination
and eccentricity of the load on bearing capacity is also examined. Chapter 15 describes different
pile types, the concept of critical depth, methods to evaluate the bearing capacity of piles in
cohesive and cohesionless soils, and pile-driving formulae. The behavior of laterally loaded piles
is investigated in Chapter 16 for piles in sand and in clay. The behavior of drilled pier foundations
and the effect of the installation method on bearing capacity and uplift are analyzed in Chapter 17.
Foundations on swelling and collapsible soils are treated in Chapter 18 as are methods that can be
used to reduce heave. This is an important subject, seldom treated in textbooks. The design of
retaining walls is covered in Chapter 19, as well as the different factors that affect active and
passive earth pressures. Different applications of geotextiles are covered in this chapter as well as
the topic of reinforced earth. Cantilever, anchored, and strutted sheet pile walls are investigated in
Chapter 20, as are methods to evaluate stability and the moment distribution. Different soil
improvement methods, such as compaction of granular soils, sand compaction piles,
vibroflotation, preloading, and stone columns, are described in Chapter 21. The chapter also
discusses lime and cement stabilization. Appendix A provides a list of SI units, and Appendix B
compares methods that have been proposed.
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