主题：【原创】岩石三轴力学性能测试系统

1.1 main frame of rock triaxial test system:
1) Actuator: maximum pressure: 2700 kn; Maximum tension 1350kn; 2) Rigid column: stiffness: 9.0 × 109 N/m； 3) Sensor calibration accuracy: 0.5%;
1.2 hydraulic oil source
1) Silent pump: flow 22lpm; Maximum noise 63 db;
2) Electric hydraulic oil distribution station: realize high and low pressure switching control; Buffered hydraulic flow 3) secondary servo valve: flow 37lpm.
1.3 all digital multi-channel control system and software
1) Controller cabinet: 3 channels and 3 platforms;
2) Universal signal conditioner: used for DC and AC sensor signal conditioning; 3) Valve driver: D / a 16 bit resolution. 4) Analog output card: supports 12 channels external connection
1.4 uniaxial test accessories
1) Uniaxial compression test device: cemented carbide with surface hardness of RC58 is used. The applicable rock sample size is 50mm in diameter x 100mm in height and 100mm in diameter x 200mm in height
2) Fracture mechanics test device: 100kN, lower span range 18 mm to 305 mm
3) Axial strain and crack growth gauge: cod gauge measuring stroke + 3mm to - 1mm.4) LVDT stroke + / - 2.5mm
1.5 rock mechanics triaxial chamber assembly
1) Dynamic pore pressure seepage control system: the maximum pressure is 140MPa, and the differential pressure and flow can be measured
2) High temperature test device: temperature range: room temperature to 200 ℃
3) Built in axial strain measurement: high temperature resistance (200 ℃) and high confining pressure (140MPa): gauge distance 50mm