Piling Engineering

The design of piles and pile groups has advanced steadily in recent times with much of this work being carried out by engineers who specialize particularly in foundation engineering. Effective stress methods are being developed for individual pile designs while computer-based techniques for assessing the settlement behaviour of large and complex pile groups are finding increasing application. The construction of piles today is also carried out for the most part by specialist contractors who exercise considerable skill in adapting methods of working to enable sound piles to be formed even in the most forbidding ground conditions, although it should still be borne in mind that every technique used can encounter difficulties and unforeseen problems at times. The skill of a given contractor often depends on their particular experience and this is only gained over many years, perhaps using a range of methods. In modern piling practice site investigation has become an essential precursor to making sensible decisions both regarding pile design and the choice of appropriate construction methods, and is all the more important because of the wide range of methods and equipment now available. Financial savings made at the investigation stage are often followed by the unwelcome discovery of adverse conditions which can eventually impose an extra burden of cost far exceeding the earlier savings which may have been made.

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