Press-in piling
Press-in piling, sometimes referred to as Hydraulic press-in, Pressing and Jacking are one of the pile installation techniques for building deep foundations and retaining structures.
Press-in piling installs prefabricated piles into the ground with static load such as hydraulic pressure. This technique eliminates the vibration and noise pollution associated with dynamic installation methods such as pile hammer and vibratory pile driver.[1].
Types of the system[edit]
How to obtain reaction forces[edit]
Press-in piling requires reaction forces for installing/extracting piles into the ground. There are several different methods to obtain reaction forces; use of dead load of heavy objects (G-Pile); use of extraction resistance of piles/sheet piles during piling in addition to the self-weight of equipment and piles (Pile Master); and use of extraction resistance of previously installed piles/sheet piles (Silent Piler). Common to all these techniques is an advantage that vibration and noise are minimal during piling, since these utilize static force for pile installation [2].
Assistance for hard grounds[edit]
Even in cases where piles have to be embedded to hard grounds, assistance with augering, water-jetting or rotary cutting can be applied.
Modern use and benefits[edit]
Press-in piling has been still used extensively, and its usage has extended from temporary structures to rail, roads, and numerous other industries where minimal vibration and noise are required, or building work takes place close to existing structures[3].
Most users use Press-in piling due to the reduced environmental impact and to the construction constraints, such as narrow construction space, on the slope or on water away from the land. Press-in piling yields less soil displacement so excess soil does not need to be transported from the site, saving on transportation costs and reducing the carbon footprint of the project[4]
See also[edit]
References[edit]
- ↑ International press-in association (2016). Press-in retaining structures: a handbook (First edition 2016)
- ↑ D.J. White and A.D. Deeks (2007). Recent research into the behaviour of jacked foundation piles, Advances in Deep Foundations, pp. 3-26, 2007
- ↑ International press-in association (2019). Press-in Piling Case History Volume 1
- ↑ International press-in association introduces latest case histories in its Newsletter.
External links[edit]
Press-in piling[edit]
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