The portable shear box is used for practical rock testing either in the field or laboratory.
The apparatus consists of a shear box in two parts which can accept a maximum sample size of 115mm x 125mm or cores of up to 102mm diameter. The lower half is fitted with two rams for reversible shearing action, and the upper half is fitted with a ram for normal load application.

The apparatus consists of:

• 2 Hydraulic Pumps
• 2 Pressure Gauges accurate to within 1%”
• 2 Pressure Pipes
• 1 Dial Gauge 25mm x 0.01 divisions
• 2 Aluminium formers with Perspex sides

 

Click to view a PDF file of the User Guide