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Undrained
Triaxial Compression Test |
Location |
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Job ref. |
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Borehole/Pit no. |
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Soil
description |
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Sample No. |
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Depth excavated |
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Date |
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Group/Type |
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Date Form |
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Test
method BS1377: Part
7: 1990 5/15/94 8/9* |
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Type of
specimen Undisturbed/compacted* |
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Nominal diameter |
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Preparation
procedure |
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Specimen
details |
Initially |
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After test |
Sketch showing specimen |
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location in original sample |
Diameter |
D mm |
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Mass |
g |
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Area |
Ao mm2 |
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Dry mass |
g |
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Length |
Lo mm |
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Moisture |
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Volume |
cm3 |
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Content |
% |
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Mass |
g |
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Density |
Mg/m3 |
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Compression
test Single stage/Multistage, Stage* |
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Machine no |
Rate of Deformation |
Cell pressure |
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mm/min |
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kPa |
Membrane
thickness |
Force device no. |
Mean calibration |
Stress factor |
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mm |
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n/division |
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kPa/div |
Deformation |
Compression |
Strain |
Force gauge |
Axial force |
Correct |
Measured deviator stress |
gauge |
of specimen |
e = DL |
reading |
P |
area |
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reading |
DL |
Lo |
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A = Ao |
(s1-s3) = |
1000P |
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1 - e |
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A |
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mm |
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N |
mm2 |
kPa |
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Sketch of |
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Measured deviator stress kPa |
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failure
conditions |
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Membrane correction kPa |
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Corrected deviator stress kPa |
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Axial strain
% |
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Inclination of |
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Shear stress cu
kPa |
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Shear surface |
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Operator |
Checked |
Approved |
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* Delete as
appropriate |
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Form 7G |
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