Fully Automatic Multi-Field Coupling Soil Triaxial Instrument

Product Description

Product Introduction

SZ30-4DA coarse-grained soil triaxial shear testing machine is suitable for measuring the shear strength and deformation characteristics of coarse-grained soil with axial stress σ1 not more than 21 MPa (total load 1500kN) and ambient pressure σ3 not more than 4.0MPa. In line with the national standard of the People's Republic of China "Soil test Code" GB/T 50123-2019, the Ministry of Electric Power of the People's Republic of China DL/T5356-2006 "Test Code of coarse grained soil for hydropower and water conservancy projects", group standard T/CHES29-2019 "Test Code of coarse grained soil".

Main functions and characteristics

1. The axial pressure adopts a high precision and low speed CNC metering oil source speed control system (patent No. : ZL 2015 2 1057375.8), the system can be stable and low speed operation (minimum 0.01mm/min), low energy consumption, no noise and does not need to be equipped with cooling system;

2. The confining pressure adopts a high precision and low speed CNC metering water speed control system (patent No. : ZL 2015 2 1057375.8), the system can be stable and low speed operation, low energy consumption, no noise;

3. The equipment can carry out axial stress, strain, ambient pressure, pore pressure, sample volume change, saturated water intake and consolidation displacement and other parameters test;

4. The equipment uses industrial control computer and industrial PLC controller, digital signal converter and other joint equipment control system;

5. Using VC++ language to compile control software, can measure axial stress, strain, ambient pressure, pore pressure, sample volume change and consolidation displacement and other parameters;

6.Tthe equipment is equipped with water head pressure, vacuum pumping, reverse pressure and other three different ways to saturate the sample.

7. The equipment has super stability and expansion space.

Main technical index

1. Sample size: Φ300×600mm

2. Maximum axial load: 1500KN

3. Force measurement accuracy: ±0.5% F.S

4. Axial force resolution: 0.1KN

5. The maximum ambient pressure: 4.0MPa

6. The maximum back pressure: 0 ~ 1.0MPa

7. Pore pressure: -0.1 ~ 4.0MPa

8. Pressure resolution: 0.001MPa

9. Maximum axial stroke: 300mm (cylinder)