Anchor rod drawing experiment displacement measuring system and measuring method thereof

The invention discloses an anchor rod drawing experiment displacement measuring system and a measuring method thereof. The system comprises a tripod, the tripod is fixed to a slope through fixing bolts, and a wedge-shaped block is attached to the inclined surface of the slope and arranged in the middle of the tripod; a base plate, a jack, a jack piston, a sleeve, an anchor rod and a fixing sleeveare sequentially arranged on the wedge-shaped block; measuring ropes are arranged between the top end of the fixing sleeve and the fixing bolts. The system is simple in structure and convenient to install and test; the wedge-shaped block is mainly used for adjusting the included angle between the slope surface and the axis of the anchor rod so as to ensure that the axis of the jack coincides withthe axis of the anchor rod, measuring errors caused by deflection in the loading process of the anchor rod are reduced, and the defect that an existing measuring mode cannot be used for measuring theanchor rod during deflectio