Slope Stability Analysis

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TABLE 2: DEEP LEVEL FOOTING – ULTIMATE GEOTECHNICAL PARAMETERS (LONG PILE)

                   Material                         Bored               Bored            Screw               Screw

                                                  Fb (kPa)             Fs (kPa)        Fb (kPa)             Fs (kPa)
            Stiff (or stronger) clays                 450                30                NR                   NR
 Notes: Fb = Base Bearing (Ultimate); Fs = Shaft Adhesion (Ultimate)


The upper 1 m of soil profile should be ignored in shaft calculations for bored piles to allow for shrinkage cracks. The
values presented in Table 2 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.




ATTACHMENTS
About Your Geotechnical Report
Interpretation of the Subsurface Sheets
Practice Note Guidelines
Client Supplied Information




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