e-book
Theory and Practice of Foundation Design
Over long years of association with the profession of teaching and research in civil and
geotechnknl engineering. our experiences sugges1 that foundations arc ofte-n designed without
lllking all the essential parameters into consideration particularly those with regard to geology
of the site soil data ground conditions. type of structure. and land use pattern in the vicinity of
the construction area. Though the theoretical aspects of foundation design are well understood.
the fie ld situations are usually not given the due imponance. As a consequence, the
implementation of the proposed design runs into problems necessitating changes in construction
methodology or in some cases even the design.
The book covers the essential features of foundation design through fourteen chapters.
The foundation design requires understanding of the soil type, its strength and deformation
characteristics. ground water tab1e, and other details of the site and the structures. We have
striven to incorporate all these criteria so as to acquaint the reader with all necessary aspects or
foundation design. This treatment begins with Chapter I that details the engineering properties
of soil as required for the design of sound foundations. Chapter 2 discusses site investigation as
lhe next step towards foundation design. This chapter elaborates on the various methods of soil
exploration and testing. The design parameters and the importance of proper interpretation of
the data collected from soil investigation are described in Chapter 3 while Chapter 4 introduces
different types of foundations and their charactetistics.
Chapters 6 through 7 offer detailed study of the mechanical properties of soil including
the stress distribution, the bearing capacity of foundations, and settlement. The effect of non
homogeneity and nonlinearity of the stress-strain relationships on the stress distribution in soils
is elucidated and the concept of stress-path method of settlement analysis is introduced in these
chapters. The imponant considerations for obtaining the design parameters from a large amount
of soil test data are highlighted. The design procedures for shallow and deep foundations, as
also for well foundations are presented in Chapters 8 through 10. The special requirements of
expansive soils are covered and the earthquake response or soils and foundations are emphasized
in Chapters II and 13 respectively. The ground improvement techniques commonly used in
practice and the constJUCtion problems generally encountered at site are adequately dealt with in
Chapter 12. The reader should also find in the book a comprehensive treatment or the design
procedures vis-a-vis the construction problems and practices (as discussed in the final chapter).
The chapters on analylical aspects are followed by worlced-out examples taken from real-life
problems which make the reading bolh topical and interesting. Besides, numerous references
have been made to actual cases of foundations for better clarity and understanding of the topics
covered.
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