Slope Stability Report - Site 3

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

                       Very stiff or stronger clays                                                   NR                           45

                               Weathered rock                                                       1800                           60
Notes: * - Fb = Ultimate End Bearing Pressure (unfactored) for long piles, Fs = Ultimate Shaft Adhesion (unfactored).




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.




30 Nov 2020                                                                                                Geotechnical Investigation