CN218952178U

CN218952178U - Lifting charging barrel for prefabrication of immersed tube

Info

Publication number: CN218952178U
Application number: CN202223184082.9U
Authority: CN
Inventors: 徐建军; 连建龙; 杨坤; 申昌洲; 刘朝罡; 封东海
Original assignee: Jinghua Project Management Branch Beijing Water Transportation Planning And Design Institute; No 2 Engineering Co of CCCC Fourth Harbor Engineering Co Ltd
Current assignee: Jinghua Project Management Branch Beijing Water Transportation Planning And Design Institute; No 2 Engineering Co of CCCC Fourth Harbor Engineering Co Ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-05-02
Anticipated expiration: 2032-11-28

Abstract

The utility model discloses a prefabricated lifting charging barrel of a immersed tube, which comprises a first charging barrel arranged above the middle wall of the immersed tube and a second charging barrel arranged above the side wall of the immersed tube, wherein the first charging barrel and the second charging barrel comprise at least two blanking barrel sections, two adjacent blanking barrel sections are detachably connected, the blanking barrel section positioned at the uppermost part is connected with a lifting lug, the lifting lug is connected with a lifting device, and the lifting device is used for lifting the blanking barrel sections. According to the utility model, the first charging barrel and the second charging barrel are respectively arranged above the middle wall and the side walls of the immersed tube, in the concrete pouring process, the lifting device can gradually increase the heights of the first charging barrel and the second charging barrel along with the rising of the liquid level of concrete, when the bottom of the pulled-out blanking barrel section is flush with the top surface of the steel bar, the blanking barrel section can be pulled away, the lifting speed can be accelerated by using the lifting device, the lifting process is simple, convenient and rapid, the free falling height of the concrete is effectively controlled to be less than 2 meters, the segregation phenomenon of the concrete is reduced, and the concrete pouring quality of the immersed tube is improved.

Description

Lifting charging barrel for prefabrication of immersed tube

Technical Field

The utility model relates to the field of immersed tubes, in particular to a lifting charging barrel for prefabrication of an immersed tube.

Background

As shown in fig. 1, a immersed tube tunnel generally adopts a two-hole one-pipe gallery section form, and comprises an immersed tube top plate 11, an immersed tube bottom plate 12, an immersed tube middle wall 1 and an immersed tube side wall 2, wherein the immersed tube middle wall 1 and the immersed tube side wall 2 are connected with the immersed tube top plate 11 and the immersed tube bottom plate 12, the immersed tube side wall 2 is positioned at two sides of an immersed tube, and the immersed tube middle wall 1 is positioned in the middle of the immersed tube for being divided into a two-hole structure. During construction, concrete pouring is required to be carried out on the immersed tube middle wall 1 and the immersed tube side wall 2 respectively, the height of the immersed tube middle wall 1 is about 10m, and the height of the immersed tube side wall 2 is about 7m, so that certain difficulty is caused to concrete pouring due to the fact that the heights of the immersed tube middle wall 1 and the immersed tube side wall 2 are higher.

The immersed tube has higher requirements on the concrete pouring quality, and the free falling height of the concrete from the charging barrel cannot exceed 2 meters in order to avoid concrete segregation. The existing immersed tube pouring mostly adopts PE tubes as a charging barrel, the charging barrel is composed of a plurality of sections of PE tubes and is fixed on a reinforcement cage through a hemp rope, the traditional charging barrel is lifted up by two workers at the same time, the lifting height is not easy to control in the process, the workers tend to lift one section of charging barrel section for saving trouble, the situation of overdrawing easily occurs, the free falling height of concrete is larger than 2 meters, concrete segregation is easy to cause, and the immersed tube concrete pouring quality is reduced.

Disclosure of Invention

The utility model aims at: to the feed cylinder promotion that prior art exists by two workman upwards carry simultaneously, this process is difficult for controlling the lifting height, and the workman often can be in order to save trouble, once promotes a section of feed cylinder shell section to the condition of superpulling appears easily, leads to concrete free fall height to be greater than 2 meters, easily causes the concrete segregation, has reduced the problem of immersed tube concrete placement quality, provides a prefabricated lifting feed cylinder of immersed tube.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a prefabricated promotion feed cylinder of immersed tube, includes the first feed cylinder of setting in the immersed tube middle wall top and sets up in the second feed cylinder of immersed tube side wall top, first feed cylinder with the second feed cylinder all includes two at least unloading shell ring, and two adjacent unloading shell ring is detachable to be connected, is located the top unloading shell ring is connected with the lug, the lug is connected with hoisting device, hoisting device is used for promoting unloading shell ring.

According to the utility model, the first charging barrel and the second charging barrel are respectively arranged above the middle wall of the immersed tube and the side wall of the immersed tube, and are connected with the lifting device through the lifting lugs, in the concrete pouring process, the lifting device can gradually increase the heights of the first charging barrel and the second charging barrel along with the rising of the liquid level of concrete, when the bottom of the pulled-out lower charging barrel section is level with the top surface of the reinforcing steel bar, the lower charging barrel section can be pulled away, the lifting speed can be accelerated by utilizing the lifting device, the lifting process is simple, convenient and rapid, the free falling height of the concrete is effectively controlled to be less than 2 meters, the segregation phenomenon of the concrete is reduced, and the concrete pouring quality of the immersed tube is improved. In addition, compared with the existing construction scheme, the working procedure of lifting the charging barrel can be completed by reducing two workers to one person, and the labor is saved.

As a preferable scheme of the utility model, the length of the first charging barrel is longer than that of the second charging barrel so as to adapt to the heights of the immersed tube middle wall and the immersed tube side wall.

As a preferable scheme of the utility model, the number of the cylinder sections of the first charging cylinder is larger than that of the second charging cylinder so as to adapt to the heights of the immersed tube middle wall and the immersed tube side wall.

As the preferable scheme of the utility model, the length of the blanking cylinder section is 2-4m, so that the free falling height of the concrete is conveniently controlled to be less than 2 meters.

As a preferable scheme of the utility model, the blanking cylinder section is a PE pipe.

As a preferable scheme of the utility model, two adjacent blanking cylinder sections are connected through a sleeve/hoop.

As a preferred scheme of the utility model, each blanking cylinder section is provided with a connecting flange, and the connecting flanges of two adjacent blanking cylinder sections are connected through bolts.

In a preferred embodiment of the present utility model, the lifting device is a winch or a winch, and a wire rope of the winch or the winch is connected to the lifting lug through a fixed pulley.

As a preferable mode of the present utility model, the hoist or the winch is fixedly mounted to the truss of the formwork trolley.

As a preferable scheme of the utility model, the lifting device is a chain type lifting machine, and a chain of the chain type lifting machine is connected with the lifting lug.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

Drawings

FIG. 1 is a schematic cross-sectional view of a immersed tube according to the present utility model.

Fig. 2 is a schematic view of the installation of a prefabricated lift cylinder for a immersed tube according to the present utility model.

Fig. 3 is a schematic structural view of a prefabricated lifting cylinder for immersed tubes according to the present utility model.

Fig. 4 is a schematic structural view of a second cartridge according to the present utility model.

Icon: 1-immersed tube middle wall, 2-immersed tube side wall, 3-first charging barrel, 4-second charging barrel, 41-blanking barrel section, 5-winch, 6-wire rope, 7-truss, 8-fixed pulley, 9-sleeve, 10-lifting lug, 11-immersed tube top plate and 12-immersed tube bottom plate.

Detailed Description

The present utility model will be described in detail with reference to the accompanying drawings.

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Example 1

As shown in fig. 2-3, a prefabricated lifting cylinder for a immersed tube comprises a first cylinder 3, a second cylinder 4 and two lifting means. The first charging barrel 3 is arranged above the immersed tube middle wall 1, the second charging barrel 4 is arranged above the immersed tube side wall 2, and the two lifting devices are respectively used for lifting the first charging barrel 3 and the second charging barrel 4.

The first charging barrel 3 and the second charging barrel 4 are of a tandem barrel structure, namely, the first charging barrel 3 and the second charging barrel 4 comprise at least two blanking barrel sections, as shown in fig. 4, the second charging barrel 4 comprises two blanking barrel sections 41, preferably, the length of the blanking barrel sections 41 is 2-4m, and the blanking barrel sections 41 are PE pipes. The uppermost blanking cylinder section 41 is connected with a lifting lug 10, and the lifting lug 10 is connected with a lifting device.

In order to adapt to the heights of the immersed tube middle wall 1 and the immersed tube side wall 2, the length of the first charging barrel 3 is larger than that of the second charging barrel 4, the number of barrel sections of the first charging barrel 3 is larger than that of the second charging barrel 4, in the embodiment, the first charging barrel 3 comprises three blanking barrel sections, the first charging barrel 3 is 9m, and the second charging barrel 4 is 6m.

The two adjacent blanking cylinder sections 41 are detachably connected, and in this embodiment, the two adjacent blanking cylinder sections 41 are connected through the sleeve 9/anchor ear. In the present embodiment, the lifting lug 10 is provided on the steel sleeve 9, but may be provided directly on the blanking cylinder section 41.

In this embodiment, the lifting device is a winch 5, and a wire rope 6 of the winch 5 is connected to a lifting lug 10 through a fixed pulley 8. The winch 5 and the fixed pulley 8 are fixedly arranged on the truss 7 of the template trolley. Of course, it is understood that the lifting device may also employ a hoist or the like.

In the immersed tube concrete pouring process, the first charging barrel 3 and the second charging barrel 4 are respectively connected by using the two winches 5, the charging barrels are gradually controlled to be improved along with the height of the concrete liquid level, the free falling height of concrete is effectively controlled to be less than 2 meters, and when the bottom of the lower-most discharging barrel section 41 is flush with the top surface of the steel bar, the lower-most discharging barrel section 41 is pulled away, and at the moment, the lifting lug 10 is positioned on the upper-most discharging barrel section 41, so that lifting is not needed to be carried out again.

Example 2

The difference between this embodiment and embodiment 1 is that in this embodiment, each lower shell ring is provided with a connecting flange, and the connecting flanges of two adjacent lower shell rings are connected by bolts.

Example 3

The difference between the present embodiment and embodiment 1 is that the lifting device in this embodiment is a chain type lifting machine, and the chain of the chain type lifting machine is connected to the lifting lug.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The utility model provides a prefabricated promotion feed cylinder of immersed tube, its characterized in that, including setting up in the first feed cylinder of immersed tube middle wall top and setting up in the second feed cylinder of immersed tube side wall top, first feed cylinder with the second feed cylinder all includes two at least unloading shell ring, and two adjacent unloading shell ring is detachable to be connected, is located the top unloading shell ring is connected with the lug, the lug is connected with hoisting device, hoisting device is used for promoting unloading shell ring.

2. A prefabricated lifting cylinder for a immersed tube according to claim 1, wherein the first cylinder is longer than the second cylinder.

3. A prefabricated lifting cylinder for a immersed tube according to claim 1, wherein the number of sections of the first cylinder is greater than the second cylinder.

4. A prefabricated lifting cylinder for a immersed tube according to claim 1, wherein the length of the lower cylinder section is 2-4m.

5. A prefabricated lifting cylinder for a immersed tube according to claim 1, wherein the lower cylinder section is a PE tube.

6. A prefabricated lifting cylinder for a immersed tube according to claim 1, wherein two adjacent lower cylinder sections are connected by a sleeve/hoop.

7. A prefabricated lifting cylinder for a immersed tube according to claim 1, wherein each lower cylinder section is provided with a connecting flange, and the connecting flanges of two adjacent lower cylinder sections are connected by bolts.

8. A prefabricated immersed tube lifting cylinder according to any one of claims 1-7, wherein the lifting means is a winch or winch, the wire rope of which is connected to the lifting lug via a fixed pulley.

9. A prefabricated lifting cylinder for a immersed tube according to claim 8, wherein the hoist or winch is fixedly mounted to the truss of the formwork trolley.

10. A prefabricated lifting cylinder for a immersed tube according to any one of claims 1-7, wherein the lifting means is a chain hoist, the chain of which is connected to the lifting lug.