Appendix 5. Geotechnical Engineering Report [As Published] · 132007.2399

 

 

e EXPLANATION OF NOTES, ABBREVIATIONS & TERMS
= Golder
Associates USED ON BOREHOLE AND TEST PIT REPORTS

 

DRILLING/EXCAVATION METHOD

AS* Auger Screwing RD Rotary blade or drag bit HQ Diamond Core - 63 mm

AD* Auger Drilling RT Rotary Tricone bit NMLC Diamond Core - 52 mm

"vy V-Bit RAB Rotary Air Blast NQ Diamond Core - 47 mm

‘T TC-Bit, e.g. ADT RC Reverse Circulation BH Tractor Mounted Backhoe
HA Hand Auger PT Push Tube EX Tracked Hydraulic Excavator
DTC _ Diatube Coring CT Cable Tool Rig EE Existing Excavation

WB Washbore or Bailer JET Jetting HAND Excavated by Hand Methods

 

PENETRATION/EXCAVATION RESISTANCE
L Low resistance. Rapid penetration possible with little effort from the equipment used.
M Medium resistance. Excavation/possible at an acceptable rate with moderate effort from the equipment used.

H High resistance to penetration/excavation. Further penetration is possible at a slow rate and requires
significant effort from the equipment.

R Refusal or Practical Refusal. No further progress possible without the risk of damage or unacceptable wear to
the digging implement or machine.

These assessments are subjective and are dependent on many factors including the equipment power, weight, condition
of excavation or drilling tools, and the experience of the operator.

 

WATER
3 Water level at date shown <J Partial water loss
Cc Water infiow <q Complete water loss
GROUNDWATER NOT The observation of groundwater, whether present or not, was not possible due to drilling
OBSERVED water, 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
ENCOUNTERED present in 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 AS1289.6.3.1-1993

4,7,11 N=18 4,7,11 = Blows per 150mm. _N = Blows per 300mm penetration following 150mm seating

30/80mm 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

G Gas Sample

w Water Sample

FP Field permeability test over section noted

FV Field vane shear test expressed as uncorrected shear strength (sy = peak value, s, = residual value)

PID Photoionisation Detector reading in ppm

PM Pressuremeter test over section noted

PP Pocket penetrometer test expressed as instrument reading in kPa

U63 Thin walled tube sample - number indicates nominal sample diameter in millimetres

Ranking of Visually Observable Contamination and Odour (for specific soil contamination assessment projects)
R=0 No visible evidence of contamination R=A No non-natural odours identified
R=1 Slight evidence of visible contamination R=B Slight non-natural odours identified
R=2 Visible contamination R=C Moderate non-natural odours identified
R=3 Significant visible contamination R=D Strong non-natural odours identified

ROCK CORE RECOVERY

TCR = Total Core Recovery (%) SCR = Solid Core Recovery (%) RQD = Rock Quality Designation (%)

= Length of core recovered x100 - > Length of cylindrical core recovered x100 - Axial lengths of core > 100mm x100
Length of core run Length of core run Length of core run

 

 

GAP Form No. 6
RL4