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TFB-1 Type Unsaturated Soil Stress–Strain Controlled Triaxial Apparatus

It is used to conduct triaxial tests on saturated and unsaturated soils under constant-stress and constant-strain control.

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Geotechnical and Soil Testing Equipment

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lbt@lbt.ltd

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+86-15102211717

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TFB-1 Type Unsaturated Soil Stress–Strain Controlled Triaxial Apparatus

Description

Product Introduction:

It is used to conduct triaxial tests under constant‑stress and constant‑strain conditions for both saturated and unsaturated soils. For saturated soils, the test procedures include UU, CU, CD, anisotropic consolidation, isotropic consolidation, K0, stress‑path, and stress‑controlled tests; it can also perform triaxial tests on unsaturated soils by controlling matric suction. The instrument’s components are controlled by a microcontroller, enabling standalone operation as well as compatibility with computer‑based control, software management, and data acquisition. This device is a multifunctional, flexibly controllable triaxial testing system.

Technical specifications:

Project	Parameter
Axial force	0–30 kN, measurement accuracy ±1%
Control method	a. Strain-controlled: 0.002–4 mm/min ±10%; b. Constant-stress control: 0 kN to 30 kN, with a control accuracy of ±1%
Soil sample specifications	Φ39.1×80mm, Φ61.8×125mm
Ambient pressure	0–0.8 MPa, control accuracy ±0.5% FS, setpoint (0.01–0.8 MPa)
Back Pressure 1	0–0.8 MPa, control accuracy ±0.5% FS, setpoint (0.01–0.8 MPa)
Back Pressure 2	0–0.8 MPa, control accuracy ±0.5% FS; setpoint (0.01–0.8 MPa); a. Constant-pressure control method; b. Constant flow rate control mode (0.02–30 mL/min)
Change in the external volume of the soil sample	0~100ml
Internal volume change	0-50ml
Displacement measurement range	0-30mm
Air permeability of the clay panel	<500kPa
Power supply voltage	220V±10%

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TFB-1 Type Unsaturated Soil Stress–Strain Controlled Triaxial Apparatus

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