Brief description of technical parameters and hydraulic pumping station of coarse-grained soil triaxial shear tester

meets the

DL/T5356-2006

Hydraulic and hydraulic engineering coarse-grain soil test procedures, test methods are applicable to coarse-grained soil, used to determine unconsolidated undrained shear test, consolidated undrained test, consolidated undrained shear pore pressure test, consolidated drainage shear test

★

Maximum static loading

500KN

★

greatest pressure:

31 MPa;

★

power supply:

400V/3 kW/3PH+N+E

★

oil

/

Water cooler: maximum water demand is

1.5

Rise

/minute

Hydraulic power station

:

System pressure:

28MPa

The hydraulic system contains:

★

tank

★

Low-noise internal gear pump for constant oil delivery

★

Filter with filter blocking display

★

Maximum oil temperature protection (system shuts down when the maximum oil temperature is reached)

Closed loop control, up to frequency

1000Hz,

include

:

High-resolution data acquisition system; static test system that can control axial force, displacement or strain in a closed loop, including stress path triaxial testing and other experiments.

Features:

★

Closed loop control with high sampling rate

1000SPS

;

★

Load resolution:

±180000

Stepping

★

Displacement resolution:

±180000

Stepping

★EEPROM

Able to pass

PC

And data memory adjustment

Sample diameter

300

Millimeter, height

600

Millimeter

★

Inner frame facilitates sample preparation

★

Equipped with guide bushing

★

The chassis and top cover have two outlets for measuring pore water pressure or pore pressure

★

Fully automatic, pneumatic servo control system to generate air pressure or hydrostatic pressure

★

Closed loop control constant pressure

/

Stress or pressure

/

Stress loading step by step

★

Menu command control via computer or direct control via integrated touch panel

★

Can be used for penetration testing, triaxial shearing, pneumatic consolidation

Pressure range:

1MPa

(optional

1.6MPa

)

Pressure resolution:

0.1 KPa

voltage

220V

The automated volumetric measurement system is used to measure small volume changes that occur during triaxial testing and is completely unaffected by temperature and pressure changes. Overcoming other measurement errors caused by temperature, pressure changes and friction with a displacement sensor.

greatest pressure:

1MPa

Output:

0-10V