210408 - 72 Podargus Parade, PEREGIAN BEACH - Slope Stability Report

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The ultimate geotechnical end bearing and shaft adhesion parameter are presented in Table
3. The values given will need to reduced by applying a suitable geotechnical strength reduction
factor (Φg) for limit state or divided by a suitable factor of safety for working stress methods.
The Φg should be selected by the designer.

Table 3: Deep Level Footings – Ultimate Geotechnical Parameters (Long Pile)
                                                                                                          Bored
                             Material
                                                                                           Fb (kPa)                      Fs (kPa)

                    Medium Dense Sand                                                          360*                           0
Notes: - Fb = Ultimate End Bearing    Pressure   (unfactored)   for   long   piles,   Fs   =   Ultimate    Shaft   Adhesion       (unfactored).
*Founding a minimum of 1.0 m depth.




The upper 1 m of soil profile should be ignored in shaft calculations to allow for shrinkage
cracks. The values presented in Table 3 assume that the material equal to four pile diameters
below the base of any footings is as strong or stronger.


Settlement values are subjected to a variety of factors; however, a properly designed and
constructed pile should have a serviceability settlement between 1% and 2% of its’ diameter.


9.0 Limitations
Arcos Unit Group Pty Ltd (AG) has prepared this document for 72 Podargus Parade, Perigian
Beach for Patrick Ozmin. The document is specific to this particular project and for the
purposes as described within the document. The document cannot be used for any other
project on the same site or other sites or relied upon by a third party. Any party relying upon
this document beyond its exclusive use and purpose as stated above, and without the express
written consent of AG, does so entirely at its own risk and without recourse to AG for any loss
or damage. AG has necessarily relied upon information provided by the client and/or their
agents.

It is important to understand that ground conditions can be spatially variable over short
distances as a result of geological processes or human interference. These changes can occur
after the time of which field work was undertaken. Given this, the assumed subsurface
conditions within this document are only indicative of the conditions at the testing locations
to the depths investigated at the time of the fieldwork.

The advice given in this document is based upon the assumed subsurface conditions. The
relevance and accuracy of advice given is directly affected by variations in ground conditions



12 Oct 2021                                                                                                  Proposed Extensions