Mechanical property experiment device used for recovering practical application scene of grouting anchor cable

Abstract

The invention discloses a mechanical property experiment device used for recovering a practical application scene of a grouting anchor cable. The device comprises a base plate, a steel tube componentand a drawing instrument component; the steel tube component is used for fixing the anchor cable in the steel tube by grouting; the drawing instrument component is used for performing drawing experiment on the anchor cable fixed in the steel tube by grouting; the base plate is assembled and fixed with the top plate via the first side plate and the second side plate separately; guide rails are alsoinstalled on the end faces close to each other of the base plate and the top plate; the guide rails are separately assembled with two ends of a movable side plats in a sliding manner; a foot controlplate and a screw support plate are also fixed on the base plate; a forward switch and a back switch are separately installed on the foot control plate; the first side plate and the screw support plate are separately assembled with a screw; the screw and the movable side plate are spun and assembled via threads, and the screw is connected with the output shaft of a lateral shifting motor; a clamping base mechanism, a heating support base plate and a heating support top plate are installed on the second side plate; and the clamping base mechanism is used for fixing the steel tube of the steel tube component.

Description

technical field [0001] The invention relates to experimental equipment, in particular to a mechanical performance experimental device for restoring the actual application scene of a grouting anchor cable. Background technique [0002] The resource conditions of "rich coal, little gas, and oil shortage" determine that my country's energy structure is dominated by coal. Although my country's new energy has developed rapidly in recent years, due to my country's long-term energy structure and increasing per capita consumption, coal still accounts for more than 60% of the total energy in my country, and it will not change for a long time. In order to meet the ever-increasing demand for energy, the task of coal mining in my country will be very arduous for a long time in the future, and after long-term large-scale development, the coal resources with better mining conditions are almost exhausted, so the way out to increase production lies in mining those coal resources. Coal resou...

AI Technical Summary

Problems solved by technology

However, in the high ground pressure broken roadway, a series of problems have appeared: the prestress of the anchor is too low, the strength is insufficient, and the impact resistance is poor, causing the anchor to break or fail as a whole, and even the tail of the anchor is ejected and other damage phenomena; The diameter of the cable is small, the strength is low, the elongation rate is low, and the matching with the drill hole is poor, and the anchor cable is often broken or the whole slides; the strength and rigidity of the steel belt are small, it is easy to tear and break, and the roof protection effect is poor; in particular, When there is crack water on the roof of the roadway and it is conducted by the anchor cable hole, the water will be more serious

However, there is no mechanical performance experimental device specially used to restore the actual application scenarios of grouted anchor cables. Therefore, it brings great inconvenience to actual research and design.

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