Product Description
C142 Rock triaxial (confining pressure) compression testing machine
The method of determining the strength and deformation of the specimen under triaxial axial pressure in the triaxial compressive strength test of rock. Calculate the strength and deformation parameters of the specimen under triaxial compression. It can also determine the compressive shear strength and Poisson's ratio of rock. Normally, a triaxial compressive strength test with unconsolidated drainage under lateral pressure and without measuring pore water pressure is used.
Experimental process: First, put the prepared rock test piece on the oil-proof latex sleeve and place it in the triaxial pressure chamber, center the rock sample pressure block and the ball seat, and then place the triaxial pressure chamber on the pressure testing machine. The pressure chamber is aligned with the pressure plate. Start-up, synchronously apply lateral pressure (confining pressure) and axial pressure to the preset lateral pressure value at a loading rate of 0.05mm/min, and keep the side wall pressure unchanged, and then at a loading rate of 0.5MPa~6MPa per second Load the axial pressure until the specimen is broken, and record the axial load and deformation values during the test.
Main components: hydraulic axial pressure loading device, triaxial pressure chamber with high pressure resistance of 90MPa, confining pressure loading device, computer acquisition control instrument and analysis system.
Main components: oil pressure axial pressure loading device, triaxial pressure chamber high pressure resistant 90MPa, confining pressure loading device, computer acquisition controller and analysis system.
1. Hydraulic axial pressure loading device: 1500kN accuracy ± 12N
2. Triaxial pressure chamber: it includes a steel body and two steel end caps. When installing the sample, the caps at both ends are tightened, and it also includes two self sealing joints. One is used to connect the lateral confining pressure with the hydraulic control system, and the other is connected with the hydraulic pressure control system to test the penetration and pore pressure. Thick wall seamless steel material, high pressure resistant 80MOa
3. Sample size: 50mm × 100mm 25 × 100mm can also be matched with other sizes.
4. Side confining pressure loading: 0 ~ 50MPa, accuracy 0.1MPa, set constant pressure at will, LCD display, digital control.
5. Reverse pressure osmosis: 0 ~ 16MPa, accuracy 0.1MPa, set the constant pressure arbitrarily, LCD display, digital control. Optional.
6. Axial compression deformation (rebound) range: 0 ~ 10mm ± 0.001 mm
7. Lateral deformation range: 0 ~ 4mm ± 0.001 mm
8. Poisson's ratio: ratio of axial deformation to lateral deformation
9. Size of upper and lower pressure plates of press: 300mm
10. Press upper and lower platens. Large spacing: 400mm
11. Press piston. Large stroke: 50mm
12. Power supply: 380V ± 10%, 50Hz
13. Working medium of rock pressure chamber: hydraulic oil
14. Overall dimensions of press (long × wide × Height (mm): 890 × four hundred and fifty × one thousand three hundred and forty
15. Through the automatic collection and analysis software, the data in the process of rock triaxial fitness test are collected, analyzed and evaluated in real time.
