Geology Reference
In-Depth Information
[B] Triaxial Compression Data
(Specimen no.
)
(1)
Chamber pressure on test specimen, 3
psi
(2)
Rate of axial strain
in./min
(3)
Initial height of specimen, H 0
in.
(4)
Proving ring calibration
lb/in.
Cross-
Unit Axial
Elapsed
Deformation
Axial
Sectional
Proving
Applied
Load
Time
Dial,
H
Strain,
Area, A
Ring Dial
Axial Load
(Deviator
(min)
(in.)
(in./in.)
(in. 2 )
(in.)
(lb)
Stress) (psi)
(6)
(5)
(6)
(4)
(3) = ยข H
H 0
A 0
(1)
(2)
(5)
proving ring
calibration
(7 ) =
(4)
1
Minor principal stress (i.e., chamber pressure, 3 )
psi
Unit axial load at failure, p psi
Major principal stress at failure (i.e., 1 3 p)
psi
366
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