Novel anchor rod device with self-deformation and surrounding rock displacement display functions

Abstract

The invention discloses a novel anchor rod device with self-deformation and surrounding rock displacement display functions. The novel anchor rod device comprises a hollow anchor rod body, wherein ananchor head is fixedly mounted at the bottom end of the hollow anchor rod body; a base plate is slidably arranged at the top end of the hollow anchor rod body; a stop plug is mounted on the bottom side of the base plate; an anchoring nut is arranged at the top of the base plate; a spiral projection is arranged on the outer wall of the hollow anchor rod body; the anchoring nut is connected with thehollow anchor rod body in a threaded manner through the spiral projection; and the hollow anchor rod body comprises a plurality of unit anchor rods. Displacement monitoring sensors are mounted between two half sleeves, the positions of the displacement monitoring sensors are adjusted, so that the displacement monitoring sensors and the hollow anchor rod body form a whole, and absolute displacement of an anchor rod and surrounding rock under the condition of synchronous movement can be visually reflected when the surrounding rock deforms to drive the hollow anchor rod body to deform.

Description

technical field [0001] The invention relates to the technical field of bolts, in particular to a novel bolt device with functions of self-deformation and surrounding rock displacement display. Background technique [0002] Anchor is the most basic part of roadway support in contemporary coal mines. It reinforces the surrounding rock of the roadway so that the surrounding rock can support itself. Now the bolt is not only used in mines, but also in engineering technology. Reinforce the main body of slopes, tunnels, and dams. During the tunnel construction process, changes in the displacement of the surrounding rock of the tunnel will seriously affect the safety of the construction. Large deformations of the surrounding rock will lead to the rupture of the primary support. Distortion occurs, so the displacement of the surrounding rock needs to be monitored to ensure construction safety. However, the existing displacement testing device can only reflect the relative deformation ...

AI Technical Summary

Problems solved by technology

[0002] Anchor is the most basic part of roadway support in contemporary coal mines. It reinforces the surrounding rock of the roadway so that the surrounding rock can support itself. Now the bolt is not only used in mines, but also in engineering technology. Reinforce the main body of slopes, tunnels, and dams. During the tunnel construction process, changes in the displacement of the surrounding rock of the tunnel will seriously affect the safety of the construction. Large deformations of the surrounding rock will lead to the rupture of the primary support. Distortion occurs, so the displacement of the surrounding rock needs to be monitored to ensure construction safety. However, the existing displacement testing device can only reflect the relative deformation of the bolt relative to the surrounding rock, and cannot reflect the situation under the condition that the bolt and the surrounding rock move synchronously. Absolute displacement, which leads to inaccurate deformation data of the surrounding rock, can not truly analyze the stress and deformation of the bolt, that is, cannot optimize the role of the bolt in the surrounding rock support system; comes with a data analysis system and an electronic display

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