MEASURING APPARATUS FOR SHEAR DISPLACEMENT OF SOIL USING SERVO MOTOR

摘要

PURPOSE: An apparatus for measuring the shear displacement of soil using a servo motor is provided to estimate the shearing strength of soil by simultaneously applying vertical and shearing loads to the soil. CONSTITUTION: An apparatus for measuring the shear displacement of soil using a servo motor comprises a main frame(10), a servo motor(15), a gear box(16), an elevation member(20), an adapter(40) for measuring shearing displacement, and a controller. An excavator adapter(50) is formed on the top of the main frame. The servo motor and the gear box are installed in a support(14) formed in the inner top of the main frame. The elevation member has a ball screw member(23). The adapter is detachably coupled to the elevation member and measures the shearing torque of soil using a shear ring(47) protruded from the bottom of the main frame. The controller calculates the shearing force of the soil using the signal of the adapter.