CN216240660U

CN216240660U - Advanced slip casting ductule supporting construction in highway tunnel entrance to a cave

Info

Publication number: CN216240660U
Application number: CN202122807843.0U
Authority: CN
Inventors: 吴建明; 熊亮; 黄勇; 戴红中
Original assignee: Jiangxi Ganyue Expressway Engineering Co ltd
Current assignee: Jiangxi Ganyue Expressway Engineering Co ltd
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2022-04-08
Anticipated expiration: 2031-11-16

Abstract

The utility model relates to a grouting small conduit supporting structure for advancing a road tunnel portal, which comprises a portal main body, wherein the outer side surface of the portal main body is provided with a mounting groove, the inner wall surface of the mounting groove is provided with a conduit hole, a reinforcing plate is embedded in the mounting groove, the outer side of the reinforcing plate is provided with a limiting mechanism, the surface of the reinforcing plate is provided with a mounting hole, a threaded grouting pipe is arranged in the mounting hole and comprises a pipe body, the outer surface of the pipe body is provided with a thread, the surface of the pipe body is provided with a grouting hole, and the top end of the pipe body is fixedly connected with a threaded drill bit. And the structures are connected tightly, so that later loosening is avoided.

Description

Advanced slip casting ductule supporting construction in highway tunnel entrance to a cave

Technical Field

The utility model relates to a grouting small conduit supporting structure for advancing a highway tunnel portal, and belongs to the technical field of building equipment.

Background

In recent years, with the rapid development of socioeconomic and scientific technology in China, China has made remarkable achievement in the field of basic facilities such as traffic, underground engineering development and utilization, and the like, particularly has made unprecedented development in the aspects of railway tunnels, highway tunnels and urban subway tunnels, and has also greatly improved in the technical level of design and construction.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the technical problems in the prior art, and provides a grouting small conduit support structure for a road tunnel entrance, which can be matched with each other, effectively reinforce the entrance structure, is convenient for subsequent operation and use, is beneficial to keeping stability when other structures are installed, has a simple structure, is convenient to use, can effectively keep stable structure after installation, is tightly connected with each other, avoids later loosening, and can effectively solve the problems in the background technology.

In order to solve the technical problems, the utility model provides the following technical scheme:

the utility model provides a leading slip casting pipe support structure in highway tunnel entrance to a cave, includes the entrance to a cave main part, the mounting groove has been seted up to entrance to a cave main part outside surface, the pipe hole has been seted up to mounting groove inner wall surface, the embedded gusset plate that has connect of mounting groove, the gusset plate outside is equipped with stop gear, the mounting hole has been seted up on the gusset plate surface, be equipped with the screw thread slip casting pipe in the mounting hole.

Further, the screw thread slip casting pipe includes the body, the spiral line has been seted up to the body surface, the slip casting hole has been seted up on the body surface, body top fixedly connected with screw drill bit, body bottom fixedly connected with check valve, the fixedly connected with slip casting mouth in check valve bottom.

Furthermore, the grouting holes are distributed on the outer surface of the pipe body in an array mode, and the threaded grouting pipes are matched with the pipe holes and the mounting hole in structure.

Further, the limiting mechanism comprises a limiting plate, and fastening bolts penetrate through the surface of the limiting plate.

Further, the outer side surface of the opening main body is provided with a hole matched with the fastening bolt structure, and the limiting plate is matched with the reinforcing plate structure.

Further, the reinforcing plate is of a cambered surface plate-shaped structure, and the reinforcing plate is matched with the installation groove structure.

The utility model has the beneficial effects that:

1. the utility model relates to a grouting small conduit supporting structure for advancing a highway tunnel portal.

2. The utility model relates to a grouting small conduit supporting structure for advancing a highway tunnel portal.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.

FIG. 1 is a schematic structural diagram of a main body of a grouting small conduit supporting structure for advancing a road tunnel portal;

FIG. 2 is a schematic structural view of a threaded grouting pipe of a grouting small conduit supporting structure for advancing a road tunnel portal according to the utility model;

FIG. 3 is a schematic structural view of a reinforcing plate of a supporting structure of a grouting small conduit for advancing a road tunnel portal according to the utility model;

FIG. 4 is a schematic structural view of a main structure of an opening of a support structure of a grouting small conduit for advancing a road tunnel opening;

reference numbers in the figures: 1. a hole body; 2. mounting grooves; 3. a conduit aperture; 4. a reinforcing plate; 5. a limiting mechanism; 6. mounting holes; 7. a threaded grouting pipe; 8. a pipe body; 9. helical thread; 10. grouting holes; 11. a thread drill bit; 12. a one-way valve; 13. a grouting port; 14. a limiting plate; 15. and fastening the bolt.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

As shown in fig. 1-4, a grouting small conduit support structure for advancing a road tunnel portal comprises a portal main body 1, wherein an installation groove 2 is formed in the outer side surface of the portal main body 1, the installation groove 2 provides a position for installing a reinforcing plate 4 and can reduce damage to a cave structure caused by later-stage operation, a conduit hole 3 is formed in the inner wall surface of the installation groove 2, the conduit hole 3 can facilitate installation of a threaded grouting pipe 7, a proper angle can be selected according to use requirements during drilling, a reinforcing plate 4 is embedded in the installation groove 2, a limiting mechanism 5 is arranged on the outer side of the reinforcing plate 4, an installation hole 6 is formed in the surface of the reinforcing plate 4, and the threaded grouting pipe 7 is arranged in the installation hole 6.

As shown in fig. 2, the threaded grouting pipe 7 includes a pipe body 8, spiral threads 9 are formed on the outer surface of the pipe body 8, grouting holes 10 are formed in the surface of the pipe body 8, a threaded drill bit 11 is fixedly connected to the top end of the pipe body 8, a check valve 12 is fixedly connected to the bottom of the pipe body 8, grouting ports 13 are fixedly connected to the bottom of the check valve 12, the grouting holes 10 are distributed on the outer surface of the pipe body 8 in an array manner, the threaded grouting pipe 7 is structurally matched with the pipe hole 3 and the mounting hole 6, and the threaded drill bit 11 is matched with the spiral threads 9, so that the installation of the pipe body 8 is facilitated and fixed, the installation is faster, and the installation is more stable.

As shown in fig. 3-4, stop gear 5 includes limiting plate 14, the 14 surface of limiting plate runs through and is equipped with fastening

bolt

15, 1 outside surface of entrance to a cave main part is seted up with fastening bolt 15 structure assorted hole, limiting plate 14 and reinforcing plate 4 structure phase-match, reinforcing plate 4 is cambered surface platelike structure, reinforcing plate 4 and the 2 structure phase-matches of mounting groove, reinforcing plate 4 is located the position on 1 outside surface of entrance to a cave main part, can play the guard action to inboard structure, and the installation of supplementary outer structure is fixed.

The working principle of the utility model is as follows: when the installation structure is used, an installation groove 2 is formed in the opening main body 1, the reinforcing plate 4 is installed in the installation groove 2 in a matched mode of the limiting mechanism 5, after the angle is selected through the installation hole 6, the guide pipe hole 3 is formed in the opening main body 1, the threaded grouting pipe 7 is installed in the guide pipe hole 3, and the threaded drill bit 11 can be installed and fixed in an auxiliary mode in a matched mode with the spiral threads 9.

The above embodiments are preferred embodiments of the present invention, and those skilled in the art can make variations and modifications to the above embodiments, therefore, the present invention is not limited to the above embodiments, and any obvious improvements, substitutions or modifications made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims

1. The utility model provides a little pipe supporting construction of advance slip casting of highway tunnel entrance to a cave, includes entrance to a cave main part (1), its characterized in that: mounting groove (2) have been seted up on entrance to a cave main part (1) outside surface, pipe hole (3) have been seted up on mounting groove (2) inner wall surface, the embedded gusset plate (4) that has connect in mounting groove (2), the gusset plate (4) outside is equipped with stop gear (5), mounting hole (6) have been seted up on gusset plate (4) surface, be equipped with screw grouting pipe (7) in mounting hole (6).

2. The advanced grouting small conduit supporting structure of the road tunnel portal according to claim 1, characterized in that: the threaded grouting pipe (7) comprises a pipe body (8), spiral threads (9) are formed in the outer surface of the pipe body (8), grouting holes (10) are formed in the surface of the pipe body (8), a threaded drill bit (11) is fixedly connected to the top end of the pipe body (8), a check valve (12) is fixedly connected to the bottom of the pipe body (8), and a grouting opening (13) is fixedly connected to the bottom of the check valve (12).

3. The advanced grouting small conduit supporting structure of the road tunnel portal according to claim 2, characterized in that: the grouting holes (10) are distributed on the outer surface of the pipe body (8) in an array mode, and the threaded grouting pipe (7) is structurally matched with the guide pipe hole (3) and the mounting hole (6).

4. The advanced grouting small conduit supporting structure of the road tunnel portal according to claim 3, characterized in that: the limiting mechanism (5) comprises a limiting plate (14), and a fastening bolt (15) penetrates through the surface of the limiting plate (14).

5. The advanced grouting small conduit supporting structure of the road tunnel portal according to claim 4, characterized in that: the hole is formed in the outer side surface of the hole main body (1) and is structurally matched with the fastening bolt (15), and the limiting plate (14) is structurally matched with the reinforcing plate (4).

6. The advanced grouting small conduit supporting structure of the road tunnel portal according to claim 5, characterized in that: the reinforcing plate (4) is of a cambered surface plate-shaped structure, and the reinforcing plate (4) is structurally matched with the mounting groove (2).