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Laboratory Test Sheet
Ring Shear Test - BS 1377 : Part 7 : 1990
Ring Shear Test
Location Job ref.
Borehole/Pit no.
Soil description Sample No.
Depth excavated
Group/Type Date Form
Test method                 BS1377: Part 7:  1990   6* 
Sample Preparation procedure
Machine no. Torque arm radius R mm
Distance between points of application of force rings L mm
Weighings     Specimen dimensions
Wet soil + cell g Inside radius r1 mm
Cell g Outside radius r2 mm
Wet soil g Mean radius r mm
Moisture content from trimmings  % Height H mm
Density Mg/m3 Volume   2Pr(r2-r1)H  
  cm3 1000    
Dry Density Mg/m3 Particle density Mg/m3  
Voids ratio e Measured/assumed  
Degree of saturation %        
Shear test
Single stage/Multiple stage* Run no. Normal stress
Force device A B Average
Mean calibration
Displacement factor F mm/division
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
  q   L          
mm deg mm mm mm kPa mm
Operator Checked Approved
* Delete as appropriate
Form 7E