Temperature Controlled Rock Direct Shear Apparatus
THM Rock Direct Shear Device
The Temperature Controlled Rock Direct Shear Test Apparatus is designed to determine the shear strength of intact or jointed rock or concrete specimens under different temperature regimes from -20 C degree up to +200 C degree. Various samples in the form of cylindrical, prismatic, cubical or irregularly shaped segments of different sizes can be tested by this system up to 300x300mm. The closed loop servo control shear apparatus includes a special frame construction consisting of two stiff frames for vertical force and shear force, combined in a special configuration to avoid friction and torque.
The system includes a hydraulic power pack in combination with two separate valve systems, two-separate controllers and two low friction hydraulic cylinders. The shear boxes consist of a tilting free lower and upper shear frame, which is guided by linear bearings, a fixed upper shear frame and a guided load piston
- Features
- Specifications
- Software
- Standards
- Applications
- Highly stiff and robust frame
- Highly precise force transducers
- Horizontal and vertical displacement transducers to measure shear strain and axial deformation
- The shear boxes consist of a tilting free lower and upper shear frame, which is guided by linear bearings, a fixed upper shear frame and a guided load piston
- High-speed, closed-loop control of load, displacement and position
- Digital setting of P/I/D control parameters for optimization and test parameter tuning
| Load type | servo-hydraulic |
| Axial force | up to 2000 kN |
| Shear force | Up to 500 kN |
| Specimen Size |
up to 300×300×300 mm without temperature controlling Up to 200x200 mm with temperature controlling |
| Accuracy | 0.1% |
| Settlement, resolution | 50/0.001 mm |
| Shear displacement | 50 mm/100 mm |
| Temperature range | from -20 C degree up to +200 C degree |
Or customized on request
GEOsys Software for user defined free programmable test standard procedures and complex test sequences by structured Windows operation on a graphic user interface.
Through a series of menus, this provides quick access to all the controls needed for test set ups and follows standard test sequences.
The software is able to create an unlimited number of test stages with interactive and calculated parameters for closed-loop, real-time control. An unlimited number of control and measuring channels can be simultaneously controlled.
- Not available
- Detailed information will follow soon