Extrusion stress type full-anchor anchoring agent and using method thereof

Abstract

The invention relates to the technical field of anchoring agent installation in coal mine roadway support, in particular to an extrusion stress type full-anchor anchoring agent and a using method thereof. The extrusion stress type full-anchor anchoring agent comprises a connecting part and clamping plates; and the connecting part is connected with the clamping plates, anchoring agents are placed in the clamping plates and vertically and upwards inserted into a drilled hole of a top plate, the connecting part acts on the clamping plates, and after an anchor rod and the drilled hole are installed, the connecting part is taken down for continuous use. The extrusion stress type full-anchor anchoring agent has the beneficial effects that the multiple anchoring agents are stored at the intervalbetween the two clamping plates, when the anchor rod pushes the two clamping plates to move upwards, the multiple anchoring agents are driven to ascend along the drilled hole, and therefore the multiple anchoring agents are prevented from being damaged, deviated and slipped in the drilled hole; and then a transmission part is extruded through an extrusion part, the two clamping plates are made tomove relatively, the multiple anchoring agents are extruded and broken, and cement gum and a curing agent of the multiple anchoring agents flow out along strip-shaped grooves of the clamping plates and are mixed, so that the anchoring agents are evenly attached to the inner wall of the drilled hole, and the anchor rod and the drilled hole are fixed more firmly.

Description

technical field [0001] The invention relates to the technical field of anchoring agent installation in coal mine roadway support, in particular to an extrusion stress type full-anchor anchoring agent and a use method. Background technique [0002] In the process of coal mining, the overburden layer will exert great pressure on the roadway, making it difficult to ensure safe production by relying on its own strength. Therefore, it is very important to support the roadway. The specific method is: firstly, drill the roof Then install the anchoring agent into the borehole to fix the anchor rod on the roof. The anchoring agent is composed of separated cement and curing agent packaging, and its material properties have a certain degree of flexibility. [0003] According to the above, when installing anchoring agent to borehole, the following problems often occur: 1. In the case of deep holes, the environment in the borehole is complex, and the anchoring agent is easily broken by t...

AI Technical Summary

Problems solved by technology

[0003] According to the above, when installing the anchoring agent to the borehole, the following problems often occur: 1. In the case of deep holes, the environment in the borehole is complex, and the anchoring agent is easily broken by the action of gravel when pushing

2. During the process of moving the anchoring agent upward along the borehole, when the borehole is long and the diameter of the borehole is large, the anchoring agent is prone to shift, making it difficult to push the anchoring agent to the top of the borehole, resulting in hidden dangers in installation

3. If there are multiple anchoring agents to be installed, the anchoring agent that first enters the borehole is prone to slipping, resulting in installation failure

[0004] Therefore, it is necessary to design a new extrusion stress-type full-anchor anchoring agent and its use method to solve the problems of breaking, shifting, and slipping when the anchoring agent is installed.

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