Attachment 5 - Geotechnical Assessment · MCU18/0015

 

 

 

RTI

 

 

11/055 Folio B427
EXPLANATION OF NOTES, ABBREVIATIONS & TERMS
p Golder, 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
“vv 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
ww Water level at date shown <j Partial water loss
Cc 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 fora longer period,

 

 

 

SAMPLING AND TESTING

SPT Standard Penetration Test to AS1289.6.3.1-1993

4,7,11  N=18 4,7;11 = Blows per150mm. 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 ocurred under the hammer and rod weight only

HB Hammer double-bouncing on anvil

OS Disturbed\sample

BDS Bulk disturbed sample

G Gas Sample

Ww Waiter Sample

FP Field permeability test over section noted

FV Field vane shear test expressed as uncorrected shear strength s,

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 sampte 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 > Length of cylindrical core recovered 100 _ > Axial fengths of core > 100 mm «100
Length of core run * Length of core run * 7 Length of core run

 

 

GAP Form No. 6
RL3