FRANKI PILE PDF

Atlas pile Low-noise and vibration-free. The Atlas pile is a full displacement bore pile VVB acc. DIN EN This low-noise pile system is frequently used in inner-city locations to prevent residents being disturbed by unnecessary construction noise. Due to the vibration-free manufacture, the Atlas pile is also highly suitable for use directly next to sensitive structures. Comparison Atlas pile und Fundex pile.

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Franki Piles, also known as enlarged based driven cast in-situ piles, are cast-in-place elements constructed using a drop weight hammer and temporary casing.

They can provide high capacity piles with relatively shallow installation depths. Common uses Foundations for structures with tight settlement limits Foundations for raft slabs, warehouses or medium to low level structures typically less than 12 levels Ground improvement — displacement columns High capacity shallow piles where a competent granular strata overlies a deeper weaker strata Process A mm to mm diameter temporary steel casing is vertically positioned at a planned location.

The bottom few meters of the casing is filled with a dry concrete mix and a drop hammer is used to compact the dry concrete. The dry mix then locks into the bottom of the casing forming a driving plug. This driving plug is then impacted with the drop hammer to drive the temporary casing into the ground until design depth or founding layer is reached.

Once the founding toe level has been reached the casing is secured from advancing using restraining cables. The plug is then expelled from the temporary casing by dropping the impact hammer. Once the plug has been expelled, additional dry concrete mix is added in specific controlled volumes and expelled from the bottom of the temporary casing to form the enlarged base. By keeping the drop heights of the impact hammer consistent and counting the number of blows for a known volume of dry concrete, the installation energy can be calculated, this volume vs installation energy relationship by way of the Nordlund energy formula provides quality assurance for pile founding material.

Upon completion of the enlarged base, reinforcing steel and high slump concrete are then placed in the temporary casing and the casing is then extracted leaving the in-situ concrete, reinforcement and enlarged base to form the permanent pile.

Advantages Finished foundation element resists compressive, uplift, and lateral loads Excellent settlement performance due to enlarged base Excellent quality assurance due to enlarged base blow counts vs energy Ability to alter enlarged base size should different soil charateristics be encountered Ability to target suitable founding layers with an enlarged base diameter Reduced material use when compared with other pile types for similar loads Quality assurance Enlarged Based Frankipiles are installed to an ISO accredited Keller quality system and installed in compliance with AS Forming the quality records are pile base installation energy records and basing charts.

Concrete testing records and steel mill certificates also form part of the quality assurance submission documents. Related projects.

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