Anchor rod static and dynamic tension shear comprehensive experiment device

Abstract

An anchor rod static and dynamic tension shear comprehensive experiment device comprises a base, a static tension execution mechanism, a static shear execution mechanism, a dynamic tension shear execution mechanism and a shear box mechanism. The static stretching executing mechanism, the static shearing executing mechanism and the dynamic stretching and shearing executing mechanism are arranged on the base, the shearing box mechanism is arranged on the static stretching executing mechanism, and the static stretching executing mechanism, the static shearing executing mechanism, the dynamic stretching and shearing executing mechanism and the shearing box mechanism are distributed on the same straight line. According to the anchor rod static and dynamic tension-shear comprehensive experiment device, an anchor rod static tensile experiment, an anchor rod static shear experiment, an anchor rod dynamic tensile experiment, an anchor rod dynamic shear experiment, an anchor rod static shear experiment in a tensile stress state and an anchor rod dynamic shear experiment in a tensile stress state can be completed in the same equipment, and multiple purposes of one machine are achieved; the test of the comprehensive performance index of the anchor rod can be met only through one device, and the device purchase cost and the experiment cost are effectively saved.

Description

technical field [0001] The invention belongs to the technical field of bolt tension-shear experiments, in particular to a static and dynamic tension-shear comprehensive experiment device for bolts. Background technique [0002] With the gradual depletion of shallow mineral resources, the mining of deep deposits is an inevitable development trend of future mining. However, in the deep high-stress and strong disturbance environment, excavation and unloading will cause the strain energy accumulated in the deep rock mass to be released suddenly. Induce disasters such as rockburst, roof fall or large deformation of surrounding rock, resulting in casualties and equipment damage. [0003] Anti-blast support is an effective means to prevent deep rockburst damage. Many mine bolts use plastic deformation of steel to achieve energy absorption. However, when the rock is damaged by a rockburst, in addition to a large amount of volume expansion, it will also produce a large shear deforma...

AI Technical Summary

Problems solved by technology

At present, there are many devices on the market that can independently perform static tensile tests on anchor rods, devices that can independently test the tensile or shear properties of anchor rods, and devices that can independently perform static shear tests on anchor rods, but they can be used under tension. The devices for static and dynamic shear tests are still blank, and the existing related experimental devices generally have a single function. In order to obtain the comprehensive performance index of the bolt, it needs to be realized through multiple experimental devices with different functions, resulting in equipment purchase costs and Increased Experimental Costs

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