Embedded hanging ring for top plate of filling body

Abstract

A circular ring is clamped on a main rib on a bottom rib net through a hook, meanwhile, the hook and the bottom rib net are located in a filling body solidified in an upper layer, and the tensile strength of the hanging ring is far higher than the strength when a lower layer is blocked by an anchoring agent. The phenomena of roof delamination and bottom rib net breakage caused by the blasting load effect on the filling roof can be avoided, and the stability of the filling body roof is improved.

Description

Technical Field

[0001] This utility model relates to the field of mine goaf filling technology, specifically to a pre-embedded lifting ring in the top plate of the filling body. Background Technology

[0002] In the approach-type backfill mining method, after the mining is completed, lifting rings are usually installed on the roof of the approach to suspend the lifting rods. These lifting rods act as a framework for the backfill, improving its overall strength and ensuring safe mining of the next layer of the approach. Currently, the construction of the lifting rings on the roof of the backfill typically involves drilling holes in the roof of the approach using a drilling rig after the mining is completed. Then, thin steel bars are manually bent to form rings and inserted into the holes. Finally, anchoring agents are used to seal the holes and secure the lifting rings. This construction process requires the use of appropriate machinery, inevitably involves working at height, and presents numerous risks. Furthermore, due to the influence of the on-site working environment, the anchoring agents often fail to securely seal the holes, leading to the lifting rings being pulled out of the roof. Utility Model Content

[0003] To address the problems of existing technologies, the purpose of this utility model is to provide a pre-embedded lifting ring for the top plate of the filling body, which effectively prevents the lifting ring from being pulled out due to instability.

[0004] This allows operators to quickly complete the assembly of the filling skeleton, reducing their workload and ensuring the smooth progress of the filling work.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A pre-embedded lifting ring for the top plate of a filling body includes a ring with a hook on it and an insertion port on one side of the hook. The ring is embedded in the ore pad layer, and a bottom reinforcement mesh is laid above the ore pad layer. The hook is suspended from the bottom reinforcement mesh.

[0007] Preferably, the bottom reinforcement mesh is formed by welding main reinforcement and secondary reinforcement, and the hook is suspended on the main reinforcement of the bottom reinforcement mesh.

[0008] Preferably, an upper layer of filling material is provided on the ore pad layer, and the bottom reinforcement mesh and hooks are located in the upper layer of filling material.

[0009] The beneficial effects of this utility model are as follows:

[0010] This utility model discloses a pre-embedded lifting ring for the top slab of a filling body. The ring is held on the main reinforcement of the bottom reinforcement mesh by a hook. At the same time, the hook and the bottom reinforcement mesh are in the upper layer of solidified filling body. The tensile strength of the lifting ring is much higher than the strength when the lower layer of anchoring agent is used for sealing. This can prevent the top slab from delaminating and the bottom reinforcement mesh from breaking under the action of blasting load, thus improving the stability of the top slab of the filling body. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of the pre-embedded lifting ring in the top plate of the filling body according to this utility model;

[0012] Figure 2 This is a schematic diagram of the lifting ring structure of a pre-embedded lifting ring in the top plate of a filling body according to the present invention;

[0013] Figure 3 This is a schematic diagram showing the pre-embedded position of the lifting ring in the top plate of the filling body according to this utility model.

[0014] The meanings of the labels in the attached diagram are as follows: 1. Mine pad layer, 2. Bottom reinforcement mesh, 3. Circular ring, 4. Hook, 5. Insertion, 6. Main reinforcement, 7. Upper layer filling body. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] like Figure 1 , Figure 2 , Figure 3 The utility model illustrates a pre-embedded lifting ring in the top plate of a filling body. A ring 3 is equipped with a hook 4, and a slot 5 is provided on one side of the hook 4. The ring 3 is entirely embedded in the ore pad layer 1. A filling body 7 is placed above the ore pad layer 1, and a bottom reinforcement mesh 2 is laid above the ore pad layer 1. The bottom reinforcement mesh 2 is composed of main reinforcement 6 and secondary reinforcement welded together. The hook 4 is suspended from the main reinforcement 6 of the bottom reinforcement mesh 2. The slot 5 facilitates the quick insertion of the hook 4 into the main reinforcement 6 of the bottom reinforcement mesh 2. The bottom reinforcement mesh 2 and the hook 4 are embedded in the upper layer of the filling body 7, effectively preventing the lifting ring from being pulled out. The ring 3 is hung on the main reinforcement 6 of the bottom reinforcement mesh 2 via the hook 4. Simultaneously, the hook 4 and the bottom reinforcement mesh 2 are located in the upper layer of the filling body 7. The tensile strength of the lifting ring is much higher than that of the anchoring agent sealing, extending the service life of the lifting ring. The lifting reinforcement, hanging on the ring 3, serves as the skeleton of the filling body, improving the overall strength of the filling body.

[0017] The filling slurry is injected into the passage to be filled. After the filling body reaches the design strength, the lower layer passage is mined according to the mining plan. During the blasting mining of the lower layer passage, the top ore layer 1 of the lower layer passage falls off and exposes the pre-embedded lifting ring of the upper layer. The upper layer filling body 7 becomes the top of the lower layer passage. The filling operation is carried out in this way until the filling operation is completed.

[0018] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A pre-embedded lifting ring for the top plate of a filling body, comprising a circular ring, characterized in that: The ring (3) is provided with a hook (4), and a socket (5) is provided on one side of the hook (4). The ring (3) is buried in the ore layer (1), and a bottom reinforcement mesh (2) is laid on top of the ore layer (1). The hook (4) is suspended on the bottom reinforcement mesh (2).

2. The pre-embedded lifting ring in the top plate of the filling body according to claim 1, characterized in that: The bottom reinforcement mesh (2) is made of main reinforcement (6) and secondary reinforcement welded together, and the hook (4) is suspended on the main reinforcement (6) of the bottom reinforcement mesh (2).

3. The pre-embedded lifting ring in the top plate of the filling body according to claim 1, characterized in that: An upper layer filling body (7) is provided on the ore pad layer (1), and the bottom reinforcement mesh (2) and hook (4) are located in the upper layer filling body (7).

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