Rock Test Equipment

Product introduction：

Rock three-axis testing machine, using advanced digital measurement and control technology and electro-hydraulic servo system, combined with the computer system, precisely and perfectly realizes the test process of the three control modes (force, deformation, displacement), and can be each other without impact smooth conversion microcomputer-controlled electro-hydraulic servo rock three-axis testing machine, used for uniaxial compression deformation test of rock specimens. It measures the uniaxial compressive strength, modulus of elasticity, modulus of deformation (cut line modulus), Poisson's ratio, softening coefficient and other mechanical properties of rocks. In addition to uniaxial compression and deformation tests, the triaxial rock testing machine is mainly used for conventional (isobaric) triaxial compression tests.

 

This equipment is an advanced test equipment in the field of rock mechanics to study the mechanical properties and shear characteristics of rocks under various environments. The control system of the tester adopts the EDC full digital servo controller from DOLI, Germany. This controller has multiple measurement channels, any one of which can be closed-loop control, and can be shock-free switching of the control channel during the test. The controller is easy to operate, fault-tolerant, accurate measurement, full protection, and high control accuracy. This controller can work alone or be controlled by a computer to work.

2.Lateral loading system: including three-axis pressure chamber, pressure sensor, EDC controller, booster, liquid-filled oil source, air pump.

3.Pore water pressure system: including pressurized cylinder, Japan Panasonic AC speed control system, EDC measuring controller

4. Transverse shear system: including loading frame, servo oil cylinder, force sensor, displacement sensor, etc. Transverse shear system and three-axis pressure chamber share a EDC controller.

5.Computer operating system: including the brand microcomputer (P Ⅳ / 3.2G or more), printer.

2.Maximum axial test force 1000kN, effective force measurement range 20kN-2000kN, force measurement resolution 10N, force measurement accuracy ±1%.

3.The maximum perimeter pressure 60Mpa, perimeter pressure measurement and control accuracy ± 2%, perimeter pressure resolution 0.1MPa.

4.Deformation measurement and control range: axial 0-5mm radial 0-3mm, measurement resolution 0.0001mm measurement accuracy ±1%

Deformation speed control range 0.01mm -----50mm/min

5.Displacement measurement and control range: 0-100mm Measurement accuracy <±0.5%FS

Measurement resolution higher than one ten thousandth

6. The maximum pore water pressure: 40Mpa; Effective pressure range 4%-100%F-S

Pore water pressure measurement accuracy: ≤±2% ;Water storage more than 500ml

7.Control waveform: users can arbitrarily set a variety of program waveforms containing loading, load-holding and unloading links according to their needs; loading and unloading and load-holding time setting range 0-30 hours.

8.Limit control: automatic protection when axial deforms, radial deforms, time and other parameters reach the limit value or pre-set, specimen breaks, oil circuit is blocked and oil temperature is too high.

9.Specimen specification: Φ75X150mm. Φ50X100mm.

10.Transverse shear system

Maximum shear force: 500kN

Shear force measurement range: 10kN--500 kN

Shear displacement measurement range: 0--100mm

Shear force accuracy: ≤ ± 1%

Shear displacement measurement accuracy: ≤±0.5%

Minimum shear force loading rate: 0.1kN/S

Minimum shear displacement movement rate: 0.001mm / S

Shear specimen size: 200X200X200mm, 100X100X100 mm

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