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Penpile is just the ticket

Displacement piling methods, such as driven precast or vibroconcrete columns, are often specified in preference to continuos flight augers for contaminated ground. This is because CFA can cause contaminant migration and spoil disposal problems. But apart from being noisy, displacement methods are not always ideal. Vibro piling does not work in all types of ground. And the use of smooth sided driven piles in contaminated ground raises fears of creating vertical contaminant pathways along ...

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