CN220791227U - Jacking device for tunnel pipe shed pipe body - Google Patents

Abstract

The application discloses tunnel pipe canopy body jacking device belongs to tunnel pipe canopy technical field. The application comprises the following steps: the device comprises a down-the-hole drill, a drill rod and a pipe clamp. The drill rod is arranged on the down-the-hole drill, at least one pair of convex rods are arranged on the drill rod, and the convex rods are symmetrically arranged on the side wall of the drill rod; the pipe body fastener includes: the cover plate and the connecting rod are fixedly arranged at the bottom of the cover plate, and the pipe body clamping piece is fixedly connected with the convex rod on the drill rod through the connecting rod. According to the pipe shed pipe body fixing device, the drill rod is placed into the pipe shed pipe body, then the pipe body clamping piece is welded and fixed on the protruding rod, connection and fixation between the drill rod and the pipe shed pipe body are achieved, the drill rod is driven to move forwards in a rotating mode through the driving down-the-hole drill, the pipe shed pipe body can be rotatably jacked in, the success rate of pipe shed pipe body jacking installation is improved, multiple disturbance to the shallow-buried section surrounding rock is avoided, the construction quality of the large pipe shed is guaranteed, the construction efficiency is improved, and the engineering progress is accelerated.

Description

Jacking device for tunnel pipe shed pipe body

Technical Field

The application belongs to tunnel pipe canopy technical field, and more specifically relates to a tunnel pipe canopy body jacking device.

Background

The advanced greenhouse support technology is a support technology commonly used in tunnel construction, and is used for reinforcing and stabilizing an underground roadway or tunnel structure by installing a greenhouse structure in front of a tunneling working face in advance, so that tunneling work such as a weak soil layer, a fault zone and the like can be performed under difficult geological conditions, the safety and stability of the working face are improved, and the risk of geological disasters is reduced.

In the advanced greenhouse support technology, down-the-hole drilling is needed during construction, but because geological conditions are poor, medium penetrated by a hole pipe is generally rich in underground water, and the hole is easy to collapse and clamp during drilling, a rod should be immediately withdrawn after the hole is drilled to the designed hole depth for jacking the pipe body of the greenhouse. When the pipe body of the pipe shed is jacked in, the conditions of qualified hole making, half pipe loading and difficult advance and retreat are frequently caused by manual pipe pushing, and the phenomenon of collapse Kong Kaguan is also frequently caused by the hole wall, so that the mounting success rate of the pipe body of the pipe shed is low, and the hole bottom is difficult to reach during mounting.

After the pipe body of the pipe shed is jacked into to cause hole collapse and pipe clamping, grouting and hole sweeping are needed again or for multiple times, so that rock (soil) disturbance can be caused, the construction quality of the pipe shed is reduced, the construction work efficiency is reduced, and the engineering cannot be guaranteed.

Disclosure of Invention

In order to overcome the problem that exists among the background art, this application patent provides a tunnel pipe canopy body jacking device, can improve the success rate that the pipe canopy body jacked into the installation, avoids burying section country rock to shallow and disturbed many times, guarantees big-arch shelter construction quality, improves the construction work efficiency for the engineering progress.

The application provides a tunnel pipe canopy body jacking device, include: the down-the-hole drill, the drill rod and the pipe clamp;

the drill rod is arranged on the down-the-hole drill, at least one pair of protruding rods are arranged on the drill rod, the protruding rods are symmetrically arranged on the side wall of the drill rod, and the diameter of each protruding rod is smaller than that of a slurry overflow hole on a pipe body of the pipe shed.

The pipe body fastener includes: the pipe body clamping piece is fixedly connected with the convex rod on the drill rod through the connecting rod, the diameter of the cover plate is larger than that of the slurry overflow hole on the pipe body of the pipe shed, and the diameter of the connecting rod is smaller than that of the slurry overflow hole on the pipe body of the pipe shed.

The beneficial effects of this application: according to the pipe shed pipe body, the drill rod is placed into the pipe shed pipe body, the convex rod is leaked from the position of the slurry overflow hole in the pipe shed pipe body, then the pipe body clamping piece is welded and fixed on the convex rod, connection and fixation between the drill rod and the pipe shed pipe body are achieved, the drill rod is driven to rotate and move forwards through the driving down-the-hole drill, rotary jacking of the pipe shed pipe body can be achieved, the success rate of jacking installation of the pipe shed pipe body is improved, repeated disturbance to shallow buried section surrounding rock is avoided, the construction quality of the pipe shed is guaranteed, the construction efficiency is improved, and the engineering progress is accelerated.

Further optionally, in a possible implementation manner of the first aspect, the protruding rod is provided with a thread, and the connecting rod of the pipe body clamping piece is correspondingly provided with a threaded hole.

Through being provided with the screw thread on protruding pole, correspond on the body fastener and be provided with the screw hole, can make the fixed of protruding pole and body fastener more convenient with dismantling, improve the efficiency of construction.

Further optionally, in a possible implementation manner of the first aspect, a cover plate of the pipe body clip is provided with a hexagon socket.

The top through the body fastener is provided with interior hexagonal hole, can screw up the body fastener through using interior hexagonal spanner to ensure the fastness and the stability of connection.

It will be appreciated that the above features may be combined with one another as long as they do not conflict with one another.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The foregoing and other objects, features and advantages of the application will be apparent from the following more particular descriptions of exemplary embodiments of the application as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the application.

FIG. 1 is a schematic structural view of a tunnel pipe shed pipe jacking device;

FIG. 2 is a schematic view of the partial structure at A in FIG. 1;

FIG. 3 is a schematic view of the drill rod of the present application;

FIG. 4 is a schematic front view of the pipe clamp of the present application;

fig. 5 is a schematic bottom view of the pipe clamp in the present application.

Reference numerals: 1-down-the-hole drill, 2-drill rod, 201-protruding rod, 3-body fastener, 301-apron, 302-connecting rod, 303-hexagon hole, 304-screw hole, 4-pipe canopy body, 401-thick liquid overflow hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application. In addition, technical features described below in the various embodiments of the present application may be combined with each other as long as they do not conflict with each other. The present application is described in further detail below in conjunction with the detailed description.

In the description of the present application, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description of the present application and for simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application.

In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "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; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

As shown in fig. 1-5, the present application provides a tunnel pipe canopy body jacking device, including: the down-the-hole drill 1, the drill rod 2 and the pipe clamp 3;

the drill rod 2 is arranged on the down-the-hole drill 1, three pairs of convex rods 201 are arranged on the drill rod 2, the convex rods 201 are symmetrically arranged on the side wall of the drill rod 2, and the diameter of each convex rod 201 is smaller than that of a slurry overflow hole 401 on a pipe shed pipe body 4.

The pipe clamp 3 includes: the cover plate 301 and the connecting rod 302, the connecting rod 302 is fixedly arranged at the bottom of the cover plate 301, the pipe body clamping piece 3 is fixedly connected with the convex rod 201 on the drill pipe 2 through the connecting rod 302, the diameter of the cover plate 301 is larger than that of the slurry overflow hole 401 on the pipe body of the pipe shed, and the diameter of the connecting rod 302 is smaller than that of the slurry overflow hole 401 on the pipe body of the pipe shed.

This application is through putting into pipe canopy body 4 to drilling rod 2, spill protruding pole 201 in the thick liquid overflow hole 401 position department in pipe canopy body 4, later through fix pipe body fastener 3 welded on protruding pole 201, realize being connected between drilling rod 2 and the pipe canopy body 4 fixedly, rethread drive down-the-hole drill 1 drives drilling rod 2 rotatory forward motion, can realize the rotatory jacking of pipe canopy body 4, improve the success rate of pipe canopy body 4 jacking installation, avoid burying section country rock a lot of disturbance to shallow, guarantee big-arch shelter construction quality, improve the efficiency of construction, accelerate the engineering progress.

Specifically, alternatively, the male rod 201 is provided with a thread, and the connecting rod 302 of the pipe clamp 3 is correspondingly provided with a threaded hole 304.

When the drill rod 2 is put into the pipe shed pipe body 4, the convex rod 201 leaks out of the position of the slurry overflow hole 401 in the pipe shed pipe body 4, and then the pipe body clamping piece 3 is rotationally fixed on the convex rod 201, so that the connection and the fixation between the drill rod 2 and the pipe shed pipe body 4 are realized. Through set up the screw thread on protruding pole 201, be provided with screw hole 304 on connecting rod 302 corresponds, can make protruding pole 201 and body fastener 3's fixed more convenient with dismantling, improve the efficiency of construction.

Specifically, alternatively, the cover 301 of the pipe clamp 3 is provided with an inner hexagonal hole 303.

By providing the cap plate 301 with the socket holes 303, the pipe body clamp 3 can be tightened by using the socket wrench, thereby securing the connection firmness and stability.

Finally, it is noted that the above preferred embodiments are only for illustrating the technical solution of the application, and not for limiting the fact that although the present application has been described in detail by means of the above preferred embodiments, it should 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 present application.

Claims (3)

1. Tunnel pipe canopy body jacking device, characterized by includes:

the downhole drilling machine (1), the drill rod (2) and the pipe body clamping piece (3);

the drill rod (2) is arranged on the down-the-hole drill (1), at least one pair of protruding rods (201) are arranged on the drill rod (2), the protruding rods (201) are symmetrically arranged on the side wall of the drill rod (2), and the diameter of each protruding rod (201) is smaller than that of a slurry overflow hole (401) on the pipe body (4) of the pipe shed;

the pipe body clamping piece (3) comprises: apron (301) and connecting rod (302), connecting rod (302) fixed mounting is in the bottom of apron (301), body fastener (3) are connected fixedly through protruding pole (201) on connecting rod (302) and drilling rod (2), the diameter of apron (301) is greater than the diameter of thick liquid overflow hole (401) on pipe canopy body (4), the diameter of connecting rod (302) is less than the diameter of thick liquid overflow hole (401) on pipe canopy body (4).

2. The tunnel pipe shed pipe jacking device as claimed in claim 1, characterized in that,

the convex rod (201) is provided with threads, and the connecting rod (302) of the pipe body clamping piece (3) is correspondingly provided with a threaded hole (304).

3. The tunnel pipe shed pipe jacking device as claimed in claim 2, characterized in that,

an inner hexagonal hole (303) is formed in the cover plate (301) of the pipe body clamping piece (3).