ABSTRACT
Pile jacking technology is well suited to the urban environment. The noise and vibration associated with dynamic pile installation methods is avoided by using static hydraulic force to install pre-formed displacement piles by jacking. A typical ‘press-in’ pile jacking machine is shown in Figure 1a. The ‘press-in’ technique uses the negative shaft resistance of previouslyinstalled piles to provide reaction force. Kentledge is used to install the first piles of a group.
