House Extension/Renovation, Mooloolaba Qld

ground screws

FM 114×1600-M24, FM 114z2100-M24

project partners

Van der Meer, Black Civil Construction

photos by

Andrew Black, Haus Media Co.

This 90sqm extension which includes an open plan kitchen/living/dining, study/bedroom and large outdoor entertainment area is supported by 13 of our FM 114 ground screw foundations.

The sloping site was classified as a class “P” site due to fill, poor bearing capacity and abnormal moisture conditions. An approximate bearing capacity of 100kPa was not encountered during the soil test. With the design loads and poor soil conditions in mind, our engineer specified our FM 114×1600-M24/FM 114×2100-M24 ground screws.

Our system did not require any earthworks or site preparation and our ground screws were installed via 4t excavator by local contractor Black Civil Construction. We supplied a drive attachment along with the ground screws to suit the auger drive of the 4t excavator used for the installation. A 100mm auger was used for pre-drilling where rocks and rubble were encountered. Thanks to the fast installation and instant load bearing capacity of our ground screws, all footings were installed within a couple of hours ready for the floor frame.

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