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Ring Shear
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 6* |
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Sample
Preparation procedure |
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Machine no. |
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Torque arm radius R mm |
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Distance
between points of application of force rings L mm |
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Weighings |
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Specimen dimensions |
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Wet soil +
cell |
g |
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Inside radius |
r1 mm |
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Cell |
g |
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Outside radius |
r2 mm |
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Wet soil |
g |
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Mean radius |
r mm |
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Moisture
content from trimmings % |
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Height |
H mm |
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Density |
Mg/m3 |
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Volume |
2Pr(r2-r1)H |
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cm3 |
1000 |
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Dry Density |
Mg/m3 |
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Particle density Mg/m3 |
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Voids ratio |
e |
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Measured/assumed |
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Degree of
saturation |
% |
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Shear test |
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Single
stage/Multiple stage* |
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Run no. |
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Normal stress |
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Force device |
A |
B |
Average |
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Mean
calibration |
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Displacement
factor F mm/division |
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Time |
Elapsed |
Force device reading |
Angular |
D = qr |
d = |
D1 = |
Shear Stress |
Vertical |
time |
A |
B |
average |
displ. |
57.3 |
(A+B)Fr |
D - d |
t |
deformation |
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q |
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L |
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mm |
deg |
mm |
mm |
mm |
kPa |
mm |
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Operator |
Checked |
Approved |
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* Delete as
appropriate |
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Form 7E |
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