The WBJC field direct shear apparatus (large shear apparatus method) is suitable for measuring the shear strength of weak structural surfaces of slopes and landslides, contact sliding surfaces between rock and soil, as well as cohesive soil, silt, sand, gravel layers, etc. Various inclination angle shear tests can also be conducted. Due to the in-situ testing, disturbance factors such as soil sampling and transportation are reduced, and the area is 20-30 times larger than indoor direct shear tests, so the data is more in line with the actual natural state.
1. Equipped with a vertical pressure reaction device and a ball slide guide rail, the vertical pressure is synchronized with the horizontal displacement;
2. Square shear boxes are more in line with the specifications requirements for direct shear specimens both domestically and internationally;
3. The vertical pressure and horizontal thrust are both displayed digitally, and the sensitivity coefficient can be adjusted during calibration. Not only is it highly accurate, but it is also intuitive and easy to calculate;
4. Easy equipment installation, debugging, and operation;
1. Sample size: 316.2 × 316.2 × 140mm Area: 1000cm2;
2. Vertical pressure 30KN;
3. Horizontal thrust of 50KN;
4. The thrust is displayed by sensors through digital instruments, with a resolution of 0.01KN and an accuracy of 1%.
