CN214466564U

CN214466564U - Prefabricated assembled push pipe is with back structure

Info

Publication number: CN214466564U
Application number: CN202022984651.2U
Authority: CN
Inventors: 李保营; 张庚斯; 陈思正; 杨剑飞; 沈维勇; 辛帅; 王晓冉
Original assignee: China Tunnel Shield International Construction Engineering Co ltd
Current assignee: China Tunnel Shield International Construction Engineering Co ltd
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2021-10-22
Anticipated expiration: 2030-12-11

Abstract

The application relates to the field of pipe jacking construction, in particular to a prefabricated assembly type pipe jacking rear backrest structure, which solves the technical problem that the length of the backrest structure is long after field manufacturing. The structure comprises a structure body and a top plate, wherein the structure body is arranged on the side wall of a working well, the structure body is made of precast concrete, the top plate is arranged on the structure body, the top plate is made of a steel plate, one side surface of the structure body is an arc-shaped surface, and the other side surface of the structure body is a plane; the second structural form of the structural body is that both side surfaces of the structural body are flat surfaces. The back rest structure has the advantages that the period of manufacturing the open caisson on site is shortened, the influence on road traffic is reduced, and the back rest structure can be reused.

Description

Prefabricated assembled push pipe is with back structure

Technical Field

The application relates to the field of pipe jacking construction, in particular to a prefabricated assembly type pipe jacking rear backrest structure.

Background

The existing electric power tunnel is applied to pipe jacking construction, the pipe jacking construction is a non-excavation or few-excavation pipeline burying construction technology, the pipe jacking construction is that a pipeline is jacked from one working well to another working well in a working pit by means of jacking force generated by jacking equipment, and a back rest is usually arranged on the inner wall of the working well and used for supporting the jacking equipment.

The back of traditional open caisson needs the on-spot formwork, ligature reinforcing bar, concreting, concrete maintenance etc. of preparation, reaches design intensity and just can begin to use for construction period is long, the work progress is complicated.

In view of the above-mentioned related art, the inventor believes that the conventional method has the defects of complicated process and long used period.

SUMMERY OF THE UTILITY MODEL

In order to improve the technical problems of complex process and long used period of the traditional method, the application provides a prefabricated assembly type push pipe rear backrest structure.

The application provides a back backrest structure is used to prefabricated assembled push pipe adopts following technical scheme:

the utility model provides a back structure for prefabricated assembled push pipe, includes structure and roof, the structure is used for setting up on the lateral wall of working well, the structure is made by precast concrete, the roof is installed on the structure, the roof is made by the steel sheet.

By adopting the technical scheme, the construction process is simplified, the construction period is shortened, the structural body is prefabricated by reinforced concrete, the bearing capacity of the structural body is high, the durability is good, the top plate is made of the steel plate, the structure of the rear backrest is simple, the time is saved during installation, the rear backrest can be repeatedly used, and the utilization rate of the rear backrest is improved.

Optionally, one side surface of the structure body is an arc-shaped surface, and the other side surface of the structure body is a plane.

Through adopting above-mentioned technical scheme, a side of structure is the arcwall face, and another side is that planar back is applicable to that the inner wall is circular shape work well, and the side of back sets up to the arc for the better laminating work well of back.

Optionally, both side surfaces of the structural body are square planes.

Through adopting above-mentioned technical scheme, the both sides face of structure is square planar back and is applicable to that the inner wall is planar working well for the area of contact with the working well is big more during the installation, and the installation is more firm.

Optionally, the structure body is provided with a positioning hole, the top plate is provided with a positioning rod, and the positioning hole is in matched insertion connection with the positioning rod.

By adopting the technical scheme, the positioning holes are matched and spliced with the positioning rods, so that the structural body of the back backrest is matched with the top plate more quickly, conveniently and simply.

Optionally, the number of the positioning holes is four, the positioning holes are arranged in a square, and the positioning holes are arranged at four corners close to the structure.

Through adopting above-mentioned technical scheme, set up the position that is close to the four corners with the locating hole on the structure for the position of location roof that can be fine when the installation of back, make the roof install more stably on the structure.

Optionally, the diameter of the positioning rod is the same as that of the positioning hole.

Through adopting above-mentioned technical scheme for the cooperation grafting that location stick and locating hole can be better makes the cooperation of structure and roof more firm.

Optionally, the structural body is further provided with a first hanging ring, and the first hanging ring is fixedly arranged at an end of the structural body.

Through adopting above-mentioned technical scheme, set up first rings at the tip of structure for the truck crane can put into the assigned position of open caisson bottom with back structure through first rings, accomplishes the initial erection of back.

Optionally, a second hanging ring is arranged on the top plate, and the second hanging ring is fixedly arranged at the end of the top plate.

Through adopting above-mentioned technical scheme, through the second rings, the mobile crane can be assembled roof hoist and structure to accelerate the assembly process, practice thrift manpower and time.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the construction period is shortened, the installation of the back rest is simplified, the structure body can be reused, and the bearing capacity of the structure body is improved as the structure body is prefabricated by reinforced concrete;

2. the connecting mode of the positioning rod and the positioning hole is used, so that the assembling process of the rear backrest structure is simplified, and the structure body has two structural forms, so that the rear backrest can be suitable for working wells in various forms;

3. the structure body and the top plate are both provided with lifting rings and are installed through a truck crane, and therefore working efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Fig. 2 is a schematic diagram of an explosive structure of the embodiment of the present application shown in fig. 1.

Description of reference numerals: 1. a structure body; 2. positioning holes; 3. a first hanging ring; 4. a positioning rod; 5. a second hoisting ring; 6. a top plate.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The embodiment of the application discloses back structure for prefabricated push pipes. Referring to fig. 1, a prefabricated pipe jacking rear backrest structure includes a structural body 1 and a top plate 6, the top plate 6 being mounted on the structural body 1. The structure body 1 has two structural forms, the first structural form is that one side is an arc-shaped surface, the other side is a square plane, and the size is 6m x 6m, and the structure is suitable for a working well with a circular side wall; the second structure form is that both sides face is square plane, and the size is 6m, and this kind of structure is applicable to the working well that the lateral wall is the plane, and structure 1 is prefabricated by reinforced concrete. The top plate 6 is a square plate and made of a steel plate, and the size of the top plate 6 is 4 m. When the structure is used, the structure body 1 is arranged on the inner wall of a working well under the matching of a truck crane, and then the top plate 6 is arranged on the structure body 1, so that the assembly of the backrest structure after the pipe jacking is used is completed.

Referring to fig. 2, the structural body 1 is provided with four positioning holes 2 and two first hanging rings 3, the positioning holes 2 are arranged on the square side surface of the structural body 1, the positioning holes 2 are arranged according to a square shape, the positioning holes 2 are respectively arranged at four corner positions close to the square side surface of the structural body 1, the structural body 1 is further provided with two first hanging rings 3, the first hanging rings 3 are made of steel pipes and are fixedly arranged at the end part of the structural body 1, and therefore the installation and the hanging are convenient; set up four location stick 4 on roof 6, and be cylindrically, the diameter of location stick 4 is the same with the diameter of locating hole 2, location stick 4 sets up respectively in the four corners position that is close to roof 6, location stick 4 also is square range, location stick 4 pegs graft with the cooperation of locating hole 2, also be provided with two second rings 5 on roof 6, second rings 5 are made by the steel pipe, and fixed setting is at the tip of roof 6, make things convenient for the mobile crane to hang roof 6 and install on structure 1.

The implementation principle of the application is as follows: after the open caisson structure is completed, a central line of the jacking pipe tunnel is determined on the well wall through measurement and positioning, an installation position is positioned on the well wall according to the size of the back backrest structure, the structural body 1 is placed at the installation position through a truck crane, and then the jacking iron 6 is installed on the structural body 1 through the positioning rod 4 and the positioning hole 2.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a back structure is used to prefabricated assembled push pipe which characterized in that: the structure comprises a structure body (1) and a top plate (6), wherein the structure body (1) is arranged on the side wall of a working well, the structure body (1) is made of precast concrete, the top plate (6) is installed on the structure body (1), and the top plate (6) is made of a steel plate.

2. The prefabricated pipe jacking rear backrest structure as claimed in claim 1, wherein: one side surface of the structure body (1) is an arc-shaped surface, and the other side surface is a plane.

3. The prefabricated pipe jacking rear backrest structure as claimed in claim 1, wherein: two side surfaces of the structural body (1) are both planes.

4. The prefabricated pipe jacking rear backrest structure as claimed in claim 1, wherein: the structure body (1) is provided with a positioning hole (2), the top plate (6) is provided with a positioning rod (4), and the positioning hole (2) is matched and spliced with the positioning rod (4).

5. The prefabricated pipe jacking rear backrest structure of claim 4, wherein: the number of the positioning holes (2) is four, the positioning holes (2) are arranged in a square shape, and the positioning holes (2) are arranged at four corners close to the structure body (1).

6. The prefabricated pipe jacking rear backrest structure of claim 4, wherein: the diameter of the positioning rod (4) is the same as that of the positioning hole (2).

7. The prefabricated pipe jacking rear backrest structure as claimed in claim 1, wherein: the structural body (1) is further provided with a first hanging ring (3), and the first hanging ring (3) is fixedly arranged at the end part of the structural body (1).

8. The prefabricated pipe jacking rear backrest structure as claimed in claim 1, wherein: the top plate (6) is provided with a second hanging ring (5), and the second hanging ring (5) is fixedly arranged at the end part of the top plate (6).