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Laboratory Test Sheet
Shearbox Test - consolidation - BS 1377 : Part 7 : 1990
Shearbox test - specimen data
Location Job ref.
Borehole/Pit no.
Soil description Sample No.
Test method       BS1377: Part 7: 1990 5/15/94  4/5* 
Procedure   4.5.4/4.5.5/5.5.4/5.5.5
Machine no. Type of specimen
undisturbed/compacted/loosely deposited*
Preparation procedure
Weighings   g Initially After test Nominal dimensions
Wet soil + cutter + tray* g Length L1 mm
Dry soil + cutter + tray* g   L2 mm
Cutter + tray g
Area A mm2
Wet soil g Height H mm
Dry soil g Volume V cm3
Water g Particle  
Moisture content : measured        %   density psMg/m3
       trimmings       % Sketch showing specimen location
Density     Mg/m3 in original sample
Dry density   Mg/m3
Voids ratio   e
Degree of saturation %
Initial mass
  of disturbed soil* g
Mass of soil remaining g
Mass of specimen
Shearbox details and setting up  
Top of box to top of baseplate h1 mm Top of load cap above
Top of box to top porous plate h2 mm top of box, unloaded h3 mm
  Top of load cap above
Combined thickness of plates tp mm top of box, with yoke h4 mm
Sample thickness Ho = h1 - (h2+tp) mm Settlement under loading yoke mm
Mass of load hanger m1 kg Initial reading of vertical
Lever ratio r deformation gauge R1
Mass on hanger m2 kg r* m2 = kg Zero reading of gauge R0
          = R1 +/- ( h3 - h4)
Total mass on specimen m kg
Normal stress sn=9810m/A = kPa
* Delete as appropriate Operator Checked Approved
Form 7A