Cyclic Soil True Triaxial Apparatus
The Cyclic True Triaxial test system is a fully automatic system used to study the behavior of soil under various compressive stress regimes on cubic samples via three independently controlled principal axes (σ1 ≠ σ2 ≠ σ3) under static and cyclic loading.
The Cyclic Soil True Triaxial Apparatus applies vertical and horizontal independent loads by cyclic electromechanical or optionally servo-hydraulic actuators for axis 1 and axis 2 and the cell pressure is used for axis 3.
The Cyclic Soil True Triaxial Apparatus includes 4 electromechanical load actuators that work in pairs and each of them has its own LVDT displacement transducer and submersible load cells and has stress or strain feedback control.
- Features
- Specifications
- Software
- Standards
- Applications
- High Stiffness robust true triaxial cell with cell pressure up to 2 MPa
- Large Front Window for observation of sample
- Four (4) cyclic Electromechanical actuators for applying independent stresses (σ1 ≠ σ2 ≠ σ3)
- Sample size: 75x75x150mm
- Electrical feed-throughs for all internal sensors
- Ethernet Port for fast data transferring to PC
- Compatible to LABVIEW©
- Flexible controlling software for nearly unlimited test procedures of all test options
- 4 Submersible load cell to measure and closed loop control of load with minimum friction effects
- Real-time data and graph display
|
Loading type |
Electromechanical / Servo Hydraulic |
|
Numbers of Actuators |
4 off(for 2 main stress axis) |
|
Actuator Load Range |
Up to 25kN |
|
Frequency |
5Hz / 10Hz |
|
Stroke |
100mm |
|
Cell Pressure |
2 MPa |
|
Confining Pressure Accuracy |
0.1% F.S |
|
Sample Sizes |
75 x 75 x 150mm |
|
Computer Interface |
Ethernet |
- Data Acquisition, processing and device management (DPD) Module
- Saturation Module
- B-value -Test Module
- Consolidation Module (Isotropic or anisotropic)
- Permeability Test Module
- Stress path module: Linear stress paths- p, q or s, t
- Static Shear Stage Module: UU: Unconsolidated Undrained Triaxial Test (Total Stress test)
- Static Shear Stage Module:CU: Consolidated Undrained Triaxial Test with pore pressure measurement (Effective Stress test)
- Static Shear Stage Module:CD: Consolidated Drained Triaxial Test with pore pressure measurement (Effective Stress test)
- Unsaturated Test Module
- Static loading control of X and Y axes by load, displacement, stress or strain and Z axes by stress
- Cyclic loading control of X and Y axes by load, displacement, stress or strain and Z axes by stress
- Dynamic test control of x and y axes, with static stress control of the z axis.
- All shear stages (compression and extension tests for simulating all kinds of stress paths
- Unsaturated test conditions with air pressure control (If the hardware is available)
- Plane strain test, K0 test, and small shear strains
- Dynamic Shear Stage Module:
- Dynamic triaxial test module with stress or strain control including of Cyclic stress controlled , Cyclic strain-controlled, and Optional liquefaction test
- Advanced loading Module Different types of loading waveform can be given to the sample e.g. Sinusoidal, Square, Triangular, Rectangle, Ramp signal and user-defined waveform
- Dynamic ramps
- Not available
- Detailed information will follow soon