Zealchon Electronic
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The automatic Direct Shear Test Apparatus is designed for saturated fine-grained soil or sandy soil, with adaptability for other coarse-grained soils. This experiment determines the failure strength (including liquefaction) of saturated soil under dynamic stress and provides essential dynamic characteristic indicators.
Under constant normal stress (σ₀), dynamic shear stress (τ) is applied to observe:
(1) Cyclic Direct Shear Test
Periodic shear loads are applied to study strength changes under repeated shear (e.g., seismic simulation). Evaluates liquefaction potential in sand and cyclic softening in clay.
(2) Dynamic Interface Shear Test
Focuses on dynamic friction at contact surfaces between soil and structures like pile foundations or linings.
(3) Residual Strength Test
Determines long-term shear strength through large displacement dynamic shearing, critical for landslide analysis.
| Soil Sample Size | Φ 61.8mm × 20mm (Other options available) |
| Vertical Pressurization | Servo Pneumatic Control |
| Vertical Loading Range | 0-10KN (Adjustable based on sample area) |
| Vertical Deformation | 0-10mm (Accuracy: 0.01mm) |
| Horizontal Shear Load | 5KN |
| Vibration Frequency | 0-10Hz (Arbitrary setting) |
| Stress Control | Dynamic Shear Stress 0-5kN (Accuracy: ± 2N) |
| Strain Control | 0.1-5mm/min (Sine wave loading waveform) |
| Amplitude | 0.08-1.5mm |
| Vibration Segments | Up to 13 continuous vibration segments |
| Control Method | Computerized Servo Electric Control (Horizontal/Stress/Strain) |
| Data Collection | Adjustable frequency (2ms to 1000ms) |
