Anchor rod structure based on phosphorus-magnesium anchoring agent

Abstract

The invention provides an anchor rod structure based on a phosphorus-magnesium anchoring agent and a support system of the anchor rod structure. The anchor rod structure comprises a rod body, the anchoring agent, a tray, a lock nut and a self-locking ring, wherein an anchor eye is formed in tunnel surrounding rock mass, the self-locking ring is mounted on the anchor rod body, one end of the rod body extends into the anchor eye, the other end of the rod body penetrates through the tray to be screwed with the lock nut, the tray is enabled to be tightly attached to the anchor eye rock surface, and an anchorage section from the bottom of the anchor eye to the self-locking ring is filled with the anchoring agent; the support system is formed by connecting multiple anchor rod structures. With the adoption of the technical scheme, the self-locking ring is arranged on the rod body, so that when the anchoring agent is promoted to move, the loss caused by leakage of the anchoring agent is effectively avoided; the phosphorus-magnesium anchoring agent is one fast-hardening and uniformly-stirred anchoring agent with early strength, under the pushing action of the self-locking ring, a gap between the rod body and the anchor eye can be uniformly and densely filled with the anchoring agent, therefore, adhesion of the rod body and the rock mass is tighter, bearing capacity and support effect ofthe anchor rod are improved, and potential safety hazard is eliminated.

Description

technical field [0001] The invention belongs to the fields of bolting and shotcreting support construction in mining engineering and tunnel engineering, and in particular relates to a bolt structure based on a phosphorus-magnesium anchoring agent. Background technique [0002] At present, construction techniques such as bolt support and anchor shotcrete support have been widely used in mining engineering and tunnel engineering support operations. Resin-type anchoring agents are often used in anchor bolt structures. It is packaged with saturated resin. During the process of entering the hole, it is pushed into place by the anchor rod body. During the push process, the rod body will break through the resin anchoring agent package, causing the anchoring agent to spill and cause the amount of anchoring agent to be lost; two groups The resin needs to be stirred with the anchor rod body in the hole, and there is a problem of uneven mixing. In view of the aforementioned factors, t...

AI Technical Summary

Problems solved by technology

[0002] At present, construction techniques such as bolt support and anchor shotcrete support have been widely used in mining engineering and tunnel engineering support operations. Resin-type anchoring agents are often used in anchor bolt structures. It is packaged with saturated resin. During the process of entering the hole, it is pushed into place by the anchor rod body. During the push process, the rod body will break through the resin anchoring agent package, causing the anchoring agent to spill and cause the amount of anchoring agent to be lost; two groups The resin needs to be stirred with the anchor rod body in the hole, and there is a problem of uneven mixing

In view of the aforementioned factors, the effect of bolt support will be greatly reduced, which will bring certain safety hazards

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