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Technical paper: A new method for measuring the impact energy of a piling hammer 

By J Dolwin, T J Storey and T J Poskitt, Queen Mary College

This paper was first published in GE’s May 1983 issue

Synopsis

A photographic method for measuring the impact velocity of a ram is described. This enables the hammer’s efficiency to be quickly assessed. The method can be used during the day or night and in all weather conditions except dense fog. The equipment is easy to operate, and polaroid photography is used to obtain the results quickly. No physical attachments to the hammer are necessary, and hence no electrical cables between the hammer and work barge are required. 

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