Reference Document - Geotechnical Investigation Report - DBW24/0090 & RAP24/0025

                                                                                                                TERMS USED ON LOGS


       DRILLING/EXCAVATION METHOD
       AD*        Auger Drilling                       RD      Rotary Blade or Drag bit            NQ         Diamond Core - 47 mm
       *V         V-Bit                                RT      Rotary Tri-cone bit                 NMLC       Diamond Core - 52 mm
       *T         TC-Bit                               RA      Rotary Air                          HQ         Diamond Core - 63 mm
       HA         Hand Auger                                                                       HMLC       Diamond Core – 63mm
       ADH        Hollow Auger                                                                     BH         Tractor Mounted Backhoe
       HA         Hand Auger                                                                       EX         Tracked Hydraulic Excavator



       WATER
       GROUNDWATER NOT                          The observation of groundwater, whether present or not, was not possible due to drilling water,
       OBSERVED                                 surface seepage or cave in of the borehole/test pit.
       GROUNDWATER NOT                         The borehole/test pit was dry soon after excavation. However, groundwater could be present in
       ENCOUNTERED                             less permeable strata. Inflow may have been observed had the borehole/test pit been left open
                                               for a longer period.

       SAMPLING AND TESTING
       SPT                             Standard Penetration Test to AS1289.6.3.1-2004
       5,4,10 N=14                     5,4,10 = Blows per 150mm. N = Blows per 300mm penetration following 150mm seating
       30/65mm                         Where practical refusal occurs, the blows and penetration for that interval are reported
       RW                              Penetration occurred under the rod weight only
       HW                              Penetration occurred under the hammer and rod weight only
       HB                              Hammer double bouncing on anvil
       DS                              Disturbed sample
       BDS                             Bulk disturbed sample
       FV                              Field vane shear test expressed as uncorrected shear strength (sv = peak value, sr = residual value)
       PP                              Pocket penetrometer test expressed as instrument reading in kPa
       U50                             Thin walled tube sample - number indicates nominal sample diameter in millimetres
       DCP                             Dynamic cone penetration test
       CPT                             Electronic cone penetration test
       CPTu                            Electronic cone penetration test with pore pressure (u) measurement



                                                                                                                                           Rev0
                                                                                                                                     October 2013




Document Set ID: 23080488
Version: 1, Version Date: 27/06/2024