This mathine would relular working under pressure by 30KN. Testing include uniaxial compression, uniaxial fatigue compression, triaxial compression (UU,CU,CD),and triaxial vibration testing,strength of soil mass , shear moulds and damping ratio.
Side confining pressure is controlled by statically or dynamically, When the axial and lateral vibration at the same frequency, the phase can be adjusted freely within one cycle.
With servo motor driving,and mini closed-loop servo controlling.according the requirement of testing, its optional of stress and strain proceed to control and freely converting with each other.Adopting the functional closed-loop testing system and data processing software to realize collecting by high speed,real-time recording, displaying on time,smart adjustment,result processing and testing report printing etc.
Technical spec：
Pressure and displacement(vertical)：
1.1、Max forece static:Pmax=30KN dynamic:Pmax=30KN
1.2、Force range:0.5～30KN
1.3、Resolution:0.01KN
1.4、Accuracy:±0.5%FS
1.5、Displacement loading rate:0.1～50mm/min
1.6、Force loading rate 0.1～3KN/s
1.7、Max stroke:Hmax=200mm or ±100mm
1.8、Deformation range: 0~20%
Confining pressure（σ2、σ3）：
2.1、Max dynamic-static pressure≤2MPa
2.2、Range:0～2MPa
2.3、Accuracy：±0.5%FS
2.4、Resolution: 1KPa
Pore pressure
3.1、Max pressure≤2MPa
3.2、Force range:0～2MPa
3.3、Accuracy:±0.5%FS
3.4、Resolution: 1KPa
Back pressure
4.1、Max pressure≤1MPa
4.2、Force range:0～1MPa
4.3、Accuracy:±0.5%FS
4.4、Resolution: 1KPa
Amplitude, Rate, Rhase, Waveform, Flow
5.1、Main loading rate:0-10HZ,Assessment index:λ=±3mm，rate:1Hz
5.2、confining pressure is constant(vibration as well)
5.3、Waveform loading meet with sine,triangle wave,trapezoidal wave.
5.4、Accuracy of dynamic control is 1%FS, Accuracy of static control is 0.5%FS.
