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| Shearbox test
- specimen data |
| 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 |
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Date |
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| Test
method BS1377: Part 7: 1990
5/15/94 4/5* |
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| Procedure |
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4.5.4/4.5.5/5.5.4/5.5.5 |
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| Machine
no. |
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Type of specimen |
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| undisturbed/compacted/loosely
deposited* |
| Preparation
procedure |
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| Weighings |
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g |
Initially |
After test |
Nominal dimensions |
| Wet soil +
cutter + tray* |
g |
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Length |
L1 mm |
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| Dry soil +
cutter + tray* |
g |
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L2 mm |
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| Cutter + tray |
g |
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Area |
A mm2 |
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| Wet soil |
g |
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Height |
H mm |
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| Dry soil |
g |
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Volume |
V cm3 |
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| Water |
g |
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Particle |
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| Moisture
content : measured % |
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density |
psMg/m3 |
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trimmings % |
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Sketch showing specimen location |
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| Density |
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Mg/m3 |
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in original sample |
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| Dry density |
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Mg/m3 |
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| Voids ratio |
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e |
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| Degree of
saturation |
% |
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| Initial mass |
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| of disturbed soil* |
g |
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| Mass of soil
remaining |
g |
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| Mass of
specimen |
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| Shearbox
details and setting up |
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| Top of box to
top of baseplate |
h1 mm |
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Top of load cap above |
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| Top of box to
top porous plate |
h2 mm |
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top of box, unloaded |
h3 mm |
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Top of load cap above |
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| Combined
thickness of plates |
tp mm |
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top of box, with yoke |
h4 mm |
| Sample
thickness Ho = h1 - (h2+tp) |
mm |
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Settlement under loading yoke |
mm |
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| Mass of load
hanger |
m1 kg |
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Initial reading of vertical |
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| Lever ratio |
r |
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deformation gauge |
R1 |
| Mass on hanger |
m2 |
kg |
r* m2 = kg |
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Zero reading of gauge R0 |
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= R1
+/- ( h3 - h4) |
| Total mass on
specimen |
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m kg |
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| Normal stress |
sn=9810m/A = |
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kPa |
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| * Delete as
appropriate |
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Operator |
Checked |
Approved |
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Form 7A |
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