Pile Design and Construction Practice


Pile Design and Construction Practice

Piles are columnar elements in a foundation which have the function of transferring load
from the superstructure through weak compressible strata or through water, onto stiffer or
more compact and less compressible soils or onto rock. They may be required to carry uplift
loads when used to support tall structures subjected to overturning forces from winds or
waves. Piles used in marine structures are subjected to lateral loads from the impact of
berthing ships and from waves. Combinations of vertical and horizontal loads are carried
where piles are used to support retaining walls, bridge piers and abutments, and machinery

The increased adoption of piling is not only due to the availability of more efficient
mechanical equipment. Developments in analytical methods of calculating bearing capacity
and dynamic methods for load and integrity testing have resulted in greater assurance of
sound long-term performance. Further economies in foundation and superstructure design
are now possible because of the increased ability to predict movements of piles under load,
thus allowing engineers to adopt with confidence the concept of redistribution of load
between piles with consequent savings in overall pile lengths and cross-sectional dimensions,
as described in this new edition.

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