TRET: Triaxial Tests - Effective Stress - Data

• Class: Samples, Amalgamated Specimens and Laboratory Test Scheduling

Heading	Unit	Type	Example	Description
LOCA_ID		ID	327-16A	Location identifier
SAMP_TOP	m	2DP	24.55	Depth to top of sample
SAMP_REF		X	24	Sample reference
SAMP_TYPE		PA	U	Sample type
SAMP_ID		ID	ABC121415010	Sample unique global identifier
SPEC_REF		X	1a	Specimen reference
SPEC_DPTH	m	2DP	24.55	Depth to top of test specimen
TRET_TESN		X	1	Triaxial test/stage number
TRET_SDIA	mm	2DP	38.25	Specimen diameter
TRET_LEN	mm	2DP	76.5	Specimen length
TRET_IMC	%	MC	15	Specimen initial moisture content
TRET_FMC	%	MC	15	Specimen final moisture content
TRET_BDEN	Mg/m3	2DP	2.12	Initial bulk density
TRET_DDEN	Mg/m3	2DP	1.84	Initial dry density
TRET_SAT		X	Back pressure, cell pressure, none	Method of saturation
TRET_CONS		X	Drainage to both ends with radial boundary	Details of consolidation stage
TRET_CONP	kPa	0DP	100	Effective stress at end of consolidation/ start of shear stage
TRET_CELL	kPa	0DP	400	Total cell pressure during shearing stage
TRET_PWPI	kPa	0DP	50	Porewater pressure at start of shear stage
TRET_STRR	%/hr	1DP	1.5	Rate of axial strain during shear
TRET_STRN	%	1DP	9	Axial strain at failure
TRET_DEVF	kPa	0DP	360	Deviator stress at failure
TRET_PWPF	kPa	0DP	60	Porewater pressure at failure
TRET_STV	%	2DP	2.56	Volumetric strain at failure (drained only)
TRET_MODE		X	Brittle	Mode of failure
TRET_REM		X		Comments
FILE_FSET		X	FS7	Associated file reference (eg test result sheets)

Notes - 2

• The information in this group is only used in conjunction with the detailed laboratory reports.
• TRET_STV - consolidation (flow of water out of specimen) to be reported as positive and dilatancy or swelling (flow of water into specimen) to be reported as negative.