CN214247344U

CN214247344U - Underground mining cavity supporting device

Info

Publication number: CN214247344U
Application number: CN202022358794.2U
Authority: CN
Inventors: 罗才松; 陈华艳; 卢健; 郑居焕; 林莹; 应国军; 詹谨斌
Original assignee: Fujian Huarong Construction Group Co ltd; Fujian University of Technology
Current assignee: Fujian Huarong Construction Group Co ltd; Fujian University of Technology
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-09-21
Anticipated expiration: 2030-10-21

Abstract

The utility model provides an underground mining cavity supporting device, which comprises a base, a metal pipe, a bracket, a gas pipe and a grouting machine, wherein the bracket comprises a shell and a support body, the shell is a hollow cavity, one end of the support body is provided with a limiting part, the limiting part is movably arranged in the shell, the other end of the support body is an extension part and extends out of the front end of the shell; the metal tube is fixed on the base, and the rear side of the shell of the bracket is fixed on the metal tube; and one end of the air pipe is arranged at the rear end of the shell and is communicated with the inside of the shell, and the other end of the air pipe is communicated with the grouting machine. The utility model discloses install among the underground mining cavity, for the entrance to a cave provides the support, prevent to collapse.

Description

Underground mining cavity supporting device

[ technical field ] A method for producing a semiconductor device

The utility model relates to an underground mining cavity supporting device.

[ background of the invention ]

The underground mining cavity has the characteristics of strong concealment, poor regularity, poor spatial distribution regularity, large spatial form change, difficult prediction of collapse condition and the like. The water-permeable and collapse-resistant composite material can often become an important factor for inducing serious accidents, and is easy to cause various disasters such as water permeability, collapse and the like, thereby causing a great amount of casualties and property loss. The safety problem of the goaf has become an important factor influencing the economic development and social harmony of some places. To date, few support devices have been used in relation to underground cavities.

[ Utility model ] content

The to-be-solved technical problem of the utility model lies in providing an underground mining cavity supporting device, and it is installed among the underground mining cavity, for the entrance to a cave provides the support, prevents to collapse.

The utility model discloses a realize like this:

an underground mining cavity supporting device comprises a base, a metal pipe, a bracket, an air pipe and a grouting machine, wherein the bracket comprises a shell and a support body, the shell is a hollow cavity, one end of the support body is provided with a limiting part, the limiting part is movably arranged in the shell, the other end of the support body is an extending part and extends out of the front end of the shell; the metal tube is fixed on the base, and the rear side of the shell of the bracket is fixed on the metal tube; and one end of the air pipe is arranged at the rear end of the shell and is communicated with the inside of the shell, and the other end of the air pipe is communicated with the grouting machine.

Furthermore, the number of the brackets is at least two, and the number of the air pipes and the grouting machines corresponds to that of the brackets.

Further, the base is a hemisphere and is used for fixing the metal pipe.

Further, the base is a concrete cast-in-place base, and the diameter of the base is 40-60 cm.

Furthermore, the metal pipe is a hollow metal round pipe and is used for supporting the bracket.

Further, a concrete part is cast in the metal pipe.

Furthermore, the diameter of the metal pipe is 7-9cm, and the length of the metal pipe is 80-120 cm.

Further, the shell is a rectangular metal shell.

Further, the length, width and height of the shell are respectively 30-40cm 5060 cm.

Further, the extension part is a cuboid, and the width, the height and the length of the extension part are respectively 20-25cm, 30-35 cm.

The utility model has the advantages that: the utility model discloses a similar piston of bracket, after whole device is put into and is adopted the cavity, through to pouring the concrete slurry in the casing, the extension that will hold in the palm the body is ejecting and fixed, makes the extension that holds in the palm the body support to support for the hole wall on the hole wall, effectively prevents to collapse.

[ description of the drawings ]

The invention will be further described with reference to the following examples with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of the underground mining cavity supporting device of the utility model.

Fig. 2 is a schematic diagram of the bracket structure of the underground mining cavity supporting device of the utility model.

[ detailed description ] embodiments

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings and the detailed description. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 2, the underground mining cavity supporting device of the present invention includes a base 1, a metal pipe 2, a bracket 3, a gas pipe 4 and a grouting machine 7, wherein the bracket 3 includes a housing 5 and a support body 6, the housing 5 is a hollow cavity, one end of the support body 6 is provided with a limiting portion 61, the limiting portion 61 is movably disposed inside the housing 5, and the other end of the support body 6 is an extending portion 62 and extends from the front end of the housing 5; the metal tube 2 is fixed on the base 1, and the rear side of the shell 5 of the bracket 3 is fixed on the metal tube 2; and one end of the air pipe 4 is arranged at the rear end of the shell 5 and communicated with the inside of the shell 5, and the other end of the air pipe is communicated with the grouting machine 7.

In one embodiment, the following is preferred: the number of the brackets 3 is at least two, and the number of the air pipes 4 and the grouting machines 7 corresponds to that of the brackets 3.

In one embodiment, the following is preferred: the base 1 is a hemisphere and is used for fixing the metal pipe 2.

In one embodiment, the following is preferred: the base 1 is a concrete cast-in-place base with the diameter of 40-60 cm.

In one embodiment, the following is preferred: the metal pipe 2 is a hollow metal round pipe and is used for supporting the bracket 3.

In one embodiment, the following is preferred: a concrete portion is cast in the metal pipe 2.

In one embodiment, the following is preferred: the diameter of the metal pipe 2 is 7-9cm, and the length is 80-120 cm.

In one embodiment, the following is preferred: the housing 5 is a rectangular metal housing.

In one embodiment, the following is preferred: the length, width and height of the shell 5 are respectively 30-40cm 50-60 cm. The extension part is a cuboid, and the width, the height and the length of the extension part are respectively 20-25cm, 30-35 cm.

In another embodiment of the present invention, the first and second,

the base 1 of the device is formed by casting concrete in situ, is a hemisphere with the diameter of 50cm, and plays a role in supporting and fixing the metal pipe 2. The metal tube 2 is a hollow metal round bar of 8cm diameter and 100cm length, which is inserted into the base 2 when it is not fully solidified, to provide support for the carrier 3. The bracket 3 is composed of a shell 5 and a support body 6, the shell 5 is made of metal and is a cuboid hollow cavity with the thickness of 30cm to 60cm and the thickness of 1cm, the support body 6 is made of metal, an extending part 62 extending out of the shell 5 is a cuboid, the width and the height of the extending part are respectively 25cm to 35cm, slurry can be injected into the shell to eject the extending part, and the supporting cavity wall plays a role in supporting the cavity wall and preventing collapse. The air pipe 4 is made of plastic, has a diameter of 5cm, one end connected with a grouting machine 75 on the ground surface, and the other end connected with the inner cavity of the shell, and plays a role in providing pressure for the support body 6 and ejecting the extension part 62 of the support body 6.

The utility model discloses an operating principle is, and the similar piston of bracket is put into when whole device and is adopted the cavity after, through to pouring the concrete slurry in the casing, will hold in the palm the extension of body ejecting and fixed, makes the extension that holds in the palm the body support to support for the hole wall on the hole wall, effectively prevents to collapse.

Referring to fig. 1, in the implementation, a hole with a diameter of 60cm is drilled above the opening of the mining cavity 100 by a drilling machine, concrete is poured into the bottom of the hole to form a base 1, and then a period of time is required, the metal pipe 2 with the bracket is inserted before the concrete is completely solidified, and the base 1 is waited to be completely solidified. Finally, the shell 5 is filled with concrete slurry by a grouting machine 7, and the extension part 62 of the support body 6 is extruded by the concrete slurry and props against the hole. And finally, pouring fine aggregate concrete into the hollow metal pipe, and forming a main column body after solidification, so that the stability of the device is improved.

Although specific embodiments of the present invention have been described, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the claims appended hereto.

Claims

1. The utility model provides an underground mining cavity supporting device which characterized in that: the device comprises a base, a metal pipe, a bracket, an air pipe and a grouting machine, wherein the bracket comprises a shell and a support body, the shell is a hollow cavity, one end of the support body is provided with a limiting part, the limiting part is movably arranged in the shell, and the other end of the support body is an extension part and extends out of the front end of the shell; the metal tube is fixed on the base, and the rear side of the shell of the bracket is fixed on the metal tube; and one end of the air pipe is arranged at the rear end of the shell and is communicated with the inside of the shell, and the other end of the air pipe is communicated with the grouting machine.

2. An underground mining cavity supporting device according to claim 1, characterized in that: the number of the brackets is at least two, and the number of the air pipes and the grouting machines corresponds to that of the brackets.

3. An underground mining cavity supporting device according to claim 1, characterized in that: the base is a hemisphere and is used for fixing the metal pipe.

4. An underground mining cavity supporting device according to claim 3, wherein: the base is a concrete cast-in-place base, and the diameter of the base is 40-60 cm.

5. An underground mining cavity supporting device according to claim 1, characterized in that: the metal pipe is a hollow metal round pipe and is used for supporting the bracket.

6. An underground mining cavity supporting device according to claim 5, wherein: concrete parts are poured in the metal pipes.

7. An underground mining cavity supporting device according to claim 5, wherein: the diameter of the metal pipe is 7-9cm, and the length of the metal pipe is 80-120 cm.

8. An underground mining cavity supporting device according to claim 1, characterized in that: the shell is a cuboid metal shell.

9. An underground mining cavity supporting device according to claim 8, wherein: the width, height and length of the shell are respectively 30-40cm 50-60 cm.

10. An underground mining cavity supporting device according to claim 9, wherein: the extension part is a cuboid, the width of the extension part is 20-25cm, the height of the extension part is 20-25cm, and the length of the extension part is 30-35 cm.