All buildings and structures impose loads on the soil supporting the foundation and this causes stress among the soil particles; failure of this stress results in the sliding of one body of soil relative to the surrounding mass. Tinius Olsen’s direct shear test apparatus is a motorized dead weight testing machine built for direct and residual shear testing on undisturbed and remolded soil specimens. The machine uses a 10:1 beam loading device to regulate confining pressures, a displacement transducer to measure shear and vertical displacement, and a load cell with readout measures shear pressure.
Applicable standards
- BS 1377; EN 1997-2; ASTM D3080
Model TO-105-2 Specifications
| Mode of display |
Micro-controller multi-line alpha numeric display for all simultaneous channels |
| Capacity |
2 kN (200 kgf) load cell |
| Range |
+ 20 mm. LVDT displacement sensor with 3 m long cable |
| Shear measurement |
Direct/residual |
| Fast forward/reverse speed |
10 mm/min |
| Rates of strain |
Up to 9.99 mm/minute |
| Specimen size |
60 x 60 x 25 mm |
Key Features
- Microprocessor control
- Fully variable speed, up to 9.99 mm/minute
- Reduced operator involvement
- Rapid approach and return to start datum
- Direct entry through keyboard
- Direct reading in engineering units
- Modular transducer system
Optional Accessories
- TO-10401 Shear box assembly
- TO-10402 Shear box housing with linear bearing case
- TO-10405 Specimen cutter
- TO-10410 Weight set to attain 3 kg/cm2 stress on sample
Supplied as standard
- TO-10401 Shear box assembly
- TO-10402 Shear box housing with linear bearing case
- TO-10405 Specimen cutter
- TO-10410 Weight set to attain 3 kg/cm2 stress on sample
- TO-10501 Data acquisition system