CN219865156U

CN219865156U - Quick plugging device of abandonment tunnel in pit

Info

Publication number: CN219865156U
Application number: CN202320671865.5U
Authority: CN
Inventors: 崔鹏; 张发宇; 孙思赞; 肖磊; 孙江江; 李春祥; 王光才; 王界; 申岳龙
Original assignee: Yunnan Chihong Zinc and Germanium Co Ltd
Current assignee: Yunnan Chihong Zinc and Germanium Co Ltd
Priority date: 2023-03-30
Filing date: 2023-03-30
Publication date: 2023-10-20
Anticipated expiration: 2033-03-30

Abstract

The utility model discloses a quick plugging device for an underground abandoned roadway, which belongs to the technical field of abandoned roadway treatment, and comprises a plugging plate; the shape of the plugging plate is matched with the section of the abandoned roadway; limiting parts for limiting the plugging plate are respectively arranged on two sides of the plugging plate; an anchoring layer is anchored on the end face of the plugging plate facing the outer side of the abandoned roadway; the anchoring layer consists of a concrete layer and an anchor net clamped in the concrete layer; the anchor net is fixedly connected with the plugging plate. The underground abandoned roadway rapid plugging device is simple in structure, simple and convenient to construct and capable of rapidly plugging abandoned roadways.

Description

Quick plugging device of abandonment tunnel in pit

Technical Field

The utility model belongs to the technical field of waste roadway treatment, and particularly relates to a rapid plugging device for an underground waste roadway.

Background

As downhole mineral resources develop, various abandoned roadways are formed during the mining process. When the mining resources are extracted, a large number of waste roadways formed by extraction are one of main dangerous sources of mines. Therefore, the treatment work of the abandoned roadway is extremely important.

The traditional plugging of underground abandoned roadway is mainly realized by constructing a closed space and then plugging by cement grouting. When the closed space is constructed, a wall is built before and after the roadway blocking position to serve as a blocking frame, and cement paste is injected into the closed space; the other is to use wood plates to replace the wall building, use the wood plates to build up the mould, form a closed space and then grouting. The method for constructing the closed space involves two times of construction of the plugging frame, thereby increasing the workload and the cost.

In addition, in the prior art, a method and a device for plugging an underground roadway are disclosed in Chinese patent publication No. CN106050303A, wherein rapid plugging is realized by adopting a filling bag mode, and fig. 1 is a schematic structural diagram of the underground roadway plugging device. In this scheme, though only need build once shutoff frame, when specifically building shutoff frame in this technical scheme, the concrete operation is: and drilling 1-2m deep drills at intervals of 1m at the positions of the retaining wall before and after plugging by using an air drill or other tools, inserting the steel rods (2) into the drilled holes, connecting the steel rods (2) at different positions according to the required heights due to different heights of the sections of the roadway, binding the wooden plates (3) on the built steel rods (2) after connection, binding one block at intervals of 800mm upwards in sequence, wherein the length is determined by the width of the roadway, and then hanging the reinforcing steel bar meshes (4) on the wooden plates (3).

The whole construction process is complicated as can be seen from the construction process of the plugging frame. In addition, after the plugging frame is built, the corners of the filling bag are bound to the preset positions, the filling bag is hung in a conditional mode, air is blown into the filling bag to be inflated, the filling bag is inflated to the corners to be filled, the utilization effect of the filling bag is improved, and finally grouting is carried out in the filling bag.

Therefore, how to design a device which has simple construction process and simple structure and can rapidly plug the abandoned roadway is a technical problem to be solved by the technicians in the field.

Disclosure of Invention

In order to overcome the problems in the background art, the utility model provides the underground waste roadway rapid plugging device which is simple in structure and convenient to construct and can rapidly plug the waste roadway.

In order to achieve the above purpose, the present utility model is realized by the following technical scheme:

a quick plugging device for underground abandoned roadway comprises a plugging plate; the shape of the plugging plate is matched with the section of the abandoned roadway; limiting parts for limiting the plugging plate are respectively arranged on two sides of the plugging plate; an anchoring layer is anchored on the end face of the plugging plate facing the outer side of the abandoned roadway; the anchoring layer consists of a concrete layer and an anchor net clamped in the concrete layer; the anchor net is fixedly connected with the plugging plate.

Further, the limiting part is in a cross shape or an X-shaped cross shape.

Further, the distance between the anchor net and the plugging plate is smaller than 5cm.

Further, the thickness of the concrete layer is 5-10cm.

The utility model has the beneficial effects that:

the technical scheme of the utility model only comprises the plugging plate, the limiting part and the anchoring layer, the whole structure is simple, when the device is used for plugging the abandoned roadway, the abandoned roadway is plugged directly through the plugging plate, and the plugging plate is limited through the limiting part to avoid left and right displacement; and then fixing the anchor net on the plugging plate, and finally pouring concrete to the anchor net and the plugging plate to form a concrete layer so as to realize full sealing.

Drawings

FIG. 1 is a schematic diagram of a prior art downhole roadway plugging device;

fig. 2 is a schematic structural view of the present utility model.

In the figure, a 1-plugging plate, a 2-limiting part, a 3-concrete layer and a 4-anchor net.

Detailed Description

In order to make the objects, technical solutions and advantageous effects of the present utility model more apparent, preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate understanding of the skilled person.

As shown in fig. 1 and 2, a rapid plugging device for an underground abandoned roadway comprises a plugging plate 1; the shape of the plugging plate 1 is matched with the section of the abandoned roadway; the plugging plate 1 is made of wood material, plastic material or metal material; a limiting part 2 for limiting the plugging plate 1 is arranged corresponding to the plugging plate; specifically, when the plugging plate 1 is fixed and limited to avoid moving along the wind direction of a roadway channel, two ends of the limiting part 2 positioned at the inner side of the roadway are fixed on the side wall of the abandoned roadway, then the plugging plate 1 is clung to the limiting part at the side, and finally the limiting part 2 at the other side of the plugging plate 1 is fixed on the inner side wall of the roadway, so that the limiting of the plugging plate 1 by the limiting parts at the two sides of the plugging plate 1 is realized; further, the limiting part 2 can be a wood stick or a steel stick; still further, when the limiting part 2 is fixed, since the length dimension of the limiting part 2 is larger than the inner diameter of the roadway, holes are drilled at opposite positions on the side wall of the roadway respectively, the drilling depth is slightly deeper at the beginning of the holes, then one end of the limiting part 2 is inserted into the holes, after the other end of the limiting part can be inserted into the holes, the depth of part of the holes is backfilled finally.

The utility model adopts the mode of limiting and fixing at two sides of the plugging plate 1, which not only has high supporting strength, but also does not need any welding tool, thereby being convenient for rapidly completing the operation in the pit.

Further, the limiting part 2 is in a cross shape or an X-shaped cross shape. The two-shaped limiting parts on the one hand realize strong support of the plugging plate 1 and on the other hand are convenient to quickly fix on the inner side wall of the roadway.

Further, an anchoring layer is anchored on the end face of the plugging plate 1 facing the outer side of the abandoned roadway; the anchoring layer consists of a concrete layer 3 and an anchor net 4 clamped in the concrete layer 3; the anchor net 4 is fixedly connected with the plugging plate 1. Specifically, when the anchor net 4 and the plugging plate 1 are fixedly connected, the connection can be realized by a welding mode; naturally, due to the downhole operation, it is also possible to provide perforations in the blanking plate 1 in advance and then to tie up with the anchor net 4 by means of wires passing through the perforations. Still further, when the concrete layer 3 is poured, the compressed air guniting machine can be utilized to directly perform guniting pouring.

Further, in order to improve the connection stability between the anchor net 4 and the plugging plate 1, it is preferable that the distance between the anchor net 4 and the plugging plate 1 is less than 5cm, so that after the concrete layer 3 is poured, a better connection effect is provided between the two.

Still further, the thickness of the concrete layer 3 is 5-10cm, and the concrete layer with the thickness not only realizes complete coverage of the anchor net 4 and ensures the stability of the structure, but also avoids waste caused by transitional casting.

Finally, it is noted that the above-mentioned preferred embodiments are merely for illustrating the technical solution of the utility model, and not for limiting the utility model, which has been described in detail by means of the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the utility model.

Claims

1. The utility model provides a quick plugging device in abandonment tunnel in pit which characterized in that: comprises a plugging plate (1); the shape of the plugging plate (1) is matched with the section of the abandoned roadway; limiting parts (2) for limiting the plugging plate (1) are respectively arranged on two sides of the plugging plate; an anchoring layer is anchored on the end face of the plugging plate (1) facing the outer side of the abandoned roadway; the anchoring layer consists of a concrete layer (3) and an anchor net (4) clamped in the concrete layer (3); the anchor net (4) is fixedly connected with the plugging plate (1).

2. The rapid plugging device for underground abandoned roadway according to claim 1, wherein: the limiting part (2) is in a cross shape or an X-shaped cross shape.

3. The rapid plugging device for underground abandoned roadway according to claim 1, wherein: the distance between the anchor net (4) and the plugging plate (1) is smaller than 5cm.

4. The rapid plugging device for underground abandoned roadway according to claim 1, wherein: the thickness of the concrete layer (3) is 5-10cm.