MCU14/0106 Appendix E - Engineering Report

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EXPLANATION OF NOTES, ABBREVIATIONS & TERMS
USED ON BOREHOLE AND TEST PIT REPORTS

 

DRILLING/EXCAVATION METHOD

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

AV Auger V-Bit RT Rotary Tricone bit NMLC Diamond Core - 52 mm
ATC Auger TC-Bit RAB Rotary Air Blast NQ Diamond Core - 47 mm

HA Hand Auger RC Reverse Circulation BH Tractor mounted backhoe
WB Washbore or Bailer PT Push Tube EX Tracked hydraulic excavator
JET Jetting CT Cable Tool Rig EE Existing Excavation

 

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

Ww Waiter level at date shown <j Partial water loss

ce Water inflow | 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

FP Field permeability test over section noted

FV Field vane shear test expressed as shear strength sy

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 100% Y Length of ovlindsical 4 _ > Axial lengths of core > 100mm long e100

Length of core run =~ . 1 “ ¢ «100 Length ofcore run

 

ROCK STRENGTH TEST RESULTS

 

v Point Load Strength Index (Isso) (Axial test - MPa)
4 Point Load Strength Index (Isso) (Diametral test - MPa)
@ Uniaxial Compressive Strength (UCS) test result (MPa)

 

 

 

GAP Form No. 6

RL2