CN218991587U

CN218991587U - Shield station-crossing longitudinal moving system

Info

Publication number: CN218991587U
Application number: CN202223613311.4U
Authority: CN
Inventors: 张凯; 安后陶; 李悦民; 刘阳升; 荣劲松; 杨征; 陈中略; 刘斌; 黄国忠; 邓峰; 李波; 胡楠; 张鸿文; 张学华
Original assignee: Cccc Chengdu Municipal Construction Co ltd; First Engineering Co of CCCC Fourth Harbor Engineering Co Ltd
Current assignee: Cccc Chengdu Municipal Construction Co ltd; First Engineering Co of CCCC Fourth Harbor Engineering Co Ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-05-09
Anticipated expiration: 2032-12-30

Abstract

The utility model relates to the technical field of underground tunnel engineering, in particular to a shield station-crossing longitudinal moving system which comprises a track, a clamping groove, a thrust steel plate and a jack, wherein the clamping groove is detachably connected to the track, the thrust steel plate is fixedly connected to the clamping groove, one end of the jack is abutted to the thrust steel plate, and the other end of the jack is abutted to a shield bracket. The detachable clamping groove and the thrust steel plate are adopted as the counterforce support to provide counterforce for the jack, so that the clamping groove, the thrust steel plate and the jack are convenient to install and detach and are beneficial to recycling in the pushing process of the shield tunneling machine, and the cost is saved.

Description

Shield station-crossing longitudinal moving system

Technical Field

The utility model relates to the technical field of underground tunnel engineering, in particular to a shield station-crossing longitudinal moving system.

Background

With the development of urban process, urban population density is larger and larger, traffic jam problem is more and more serious, and subway plays an irreplaceable role in solving urban traffic jam as an important part of three-dimensional traffic. The subway tunnel is constructed by a shield method, a subway station with a deep burial depth is often arranged in a downtown area, the hoisting of a large machine is limited, and the receiving and starting work is often carried out in the same station during the shield pushing, so that the condition that the shield needs to longitudinally move through the station is ensured, the next continuous construction of the shield is ensured, and meanwhile, the condition is unavoidable in the urban subway construction at present.

In the prior art, in most construction of in-station air pushing, after the track is paved by the longitudinal movement construction of the shield machine, a counter-force support is welded on the track, then steel supports are continuously added in the jacking process of the shield machine, the counter-force support is welded on the track every 8-10 m, and a jack rail clamping device is used as the counter-force support. The first traditional is indulged and is moved construction and weld the number of times more repeatedly, and needs a certain amount of steel corbels to circulate, and material turnover efficiency is low, and construction efficiency is slower, and the uncontrollable factor of people is more. The second method of the jack rail clamping device has lower economic benefit.

Disclosure of Invention

The utility model aims at: the shield station-crossing longitudinal moving system comprises a shield station-crossing longitudinal moving device, a shield station-crossing longitudinal moving device and a shield station-crossing longitudinal moving device.

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

the utility model provides a shield constructs system of indulging that stands, includes track, draw-in groove, thrust steel sheet and jack, the draw-in groove detachable connect in the track, thrust steel sheet fixed connection in the draw-in groove, jack one end butt in thrust steel sheet, the jack other end is used for the butt in shield bracket.

According to the shield station passing longitudinal moving system, the detachable clamping groove and the thrust steel plate are used as the counter-force support to provide the counter-force for the jack, and in the pushing process of the shield machine, the clamping groove, the thrust steel plate and the jack are convenient to install and detach, are beneficial to recycling, and save cost.

As a preferable scheme of the utility model, a baffle is arranged between the thrust steel plate and the jack. The baffle acts on between thrust steel sheet and the jack, provides the construction platform for jack top pushing operation.

As a preferable mode of the utility model, the rail is a groove-shaped member, the groove-shaped member comprises a bottom plate and two flange plates, and each flange plate is provided with the clamping groove. The flange plate is adopted as the limiting plate, the limiting effect can be effectively exerted, the bottom plate is adopted as the track surface, the limiting plate and the track surface are integrated into a whole, stability and reliability are achieved, the sliding direction of the shield tunneling machine is effectively controlled, meanwhile, the construction operation efficiency is greatly improved, the construction operation safety is guaranteed, clamping grooves are formed in the position of each flange plate of the track, namely, two clamping grooves and two corresponding thrust steel plates are arranged, the two clamping grooves and the two thrust steel plates are adopted to serve as counter force supports for the jack, and the jack is stable and reliable.

As a preferable scheme of the utility model, the side wall of the clamping groove is provided with a screw hole, the screw hole is connected with a bolt, a backing plate is placed in the clamping groove, and the backing plate is used for clamping the flange plate. The side wall of the clamping groove hole is tightly screwed by the bolts, and pressure is acted on the backing plate, so that static friction force between the backing plate and the flange plate is increased, and enough reaction force is provided for the clamping groove.

As a preferable scheme of the utility model, a rubber plate is arranged at the bottom of the shield bracket, and the rubber plate is arranged inside the track notch. The rubber plate slides in the track notch and provides a certain height for the shield bracket, so that a certain gap is formed between the bottom of the shield bracket and the top of the track, and friction between the bottom of the shield bracket and the top of the track when the shield machine slides is reduced.

As a preferable scheme of the utility model, a stainless steel plate is fixed in the rail notch, and a tetrafluoro plate is connected to the bottom of the rubber plate. The stainless steel plate provides a smooth surface for pushing and sliding of the shield machine, and the friction force between the rubber block and the track is effectively reduced by utilizing the characteristic of small friction coefficient between the tetrafluoro plate and the stainless steel plate.

As a preferable scheme of the utility model, the head part of the track is connected with a stiffening plate, the tail part of the track is connected with an L-shaped plate, the L-shaped plate and the tail part of the track form a bayonet, and the stiffening plate can be clamped in the bayonet. The rail head stiffening plate and the other rail tail L-shaped plate are connected through the bayonet, rail splicing is completed, the strength of the rail connecting part can be effectively ensured, and meanwhile, the rail head stiffening plate is convenient to install and detach and is convenient to recycle.

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 perspective view of the present utility model.

Fig. 2 is a side view of the present utility model.

Fig. 3 is a partial cross-sectional view of A-A of fig. 2.

Fig. 4 is a partial cross-sectional view of B-B of fig. 2.

Fig. 5 is a top view of the track of the present utility model.

Fig. 6 is a large scale view of the track of the present utility model.

FIG. 7 is a schematic view of the track to stiffener connection of the present utility model.

FIG. 8 is a schematic view of the track to L-shaped board connection of the present utility model.

Fig. 9 is a schematic view of the track connection of the present utility model.

Fig. 10 is a partial perspective view of the jack and shield carrier of the present utility model.

Fig. 11 is a partial perspective view of the clamping groove and the track of the present utility model.

The marks in the figure: the device comprises a 1-shield machine, a 2-shield bracket, a 3-track, a 4-clamping groove, a 5-thrust steel plate, a 6-baffle, a 7-backing plate, an 8-stainless steel plate, a 9-jack, a 10-rubber plate, an 11-tetrafluoro plate, a 12-L-shaped plate, a 13-stiffening plate, a 14-reinforcing plate, a 15-bayonet, a 31-base plate and a 32-flange 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. 1-3, the shield station passing longitudinal moving system comprises a track 3, a clamping groove 4, a thrust steel plate 5 and a jack 9, wherein the clamping groove 4 is detachably connected to the track 3 through bolts, the thrust steel plate 5 is connected to the clamping groove 4 in a welding mode, one end of the jack 9 is abutted to the thrust steel plate 5, and the other end of the jack 9 is used for being abutted to a shield bracket 2. The detachable clamping groove 4 and the thrust steel plate 5 are adopted as the counterforce support to provide counterforce for the jack, so that the clamping groove 4 and the jack 9 are convenient to install and detach and are beneficial to recycling in the pushing process of the shield tunneling machine 1, and the cost is saved.

As shown in fig. 3, the clamping groove 4 can be formed by splicing and welding three steel plates with the thickness of 30mm, the welding seams are polished after welding, flaw detection is carried out, and the steel plates are used after being qualified, or the steel plates can be integrally customized. One side wall of the clamping groove 4 is equidistantly processed with at least four screw holes, wherein the diameter of each screw hole is slightly larger than the diameter of a bolt to be installed in the screw hole, so that the screw is matched with the screw hole. The thrust steel plate 5 is welded along the center line of the top surface of the top plate of the clamping groove 4, so that the thrust steel plate 5 and the clamping groove 4 are firmly connected, double-side full welding is adopted, and welding seams are polished after welding and flaw detection is performed.

As shown in fig. 11, when the clamping groove 4 is installed on the flange plate 32 of the track 3, the clamping groove 4 is opened downwards during installation, so that the flange plate 32 is positioned in the opening of the clamping groove 4, then a pad plate 7 is respectively placed in the space formed between the flange plate 32 and the inner side of the clamping groove 4, the side wall of the opening of the clamping groove 4 is tightly screwed by bolts, and pressure is acted on the pad plate 7, so that the static friction force between the pad plate 7 and the flange plate 32 is increased, and enough reaction force is provided for the clamping groove 4.

In a preferred mode, a baffle 6 is arranged between the thrust steel plate 5 and the jack 9, as shown in fig. 10, the baffle 6 acts between the thrust steel plate 5 and the jack 9, and a construction platform is provided for pushing operation of the jack 9.

Preferably, hydraulic jacks are used as the jacks 9 in order to provide sufficient jacking force for the jacks 9.

Example 2

On the basis of embodiment 1, as shown in fig. 6, the track 3 in this embodiment is a channel-shaped member, which is composed of a bottom plate 31 and two flange plates 32. The flange plate 32 is adopted as a limiting plate, the flange plate 32 has a limiting effect, the guiding effect can be effectively exerted, and the bottom plate 31 is adopted as a track surface, so that the limiting plate and the track surface form an integral, stable and reliable structure, and the construction operation efficiency is greatly improved and the construction operation safety is ensured while the sliding direction of the shield machine 1 is effectively controlled.

As shown in fig. 3, considering that a larger reaction force is required to push the shield machine 1 in the pushing process, clamping grooves 4 are installed on flange plates 32 on two sides of a track 3, namely, two clamping grooves 4 are installed at the same position of the track 3, wherein the clamping grooves 4 are firstly welded with a thrust steel plate 5 and then connected with the flange plates 32, and the two clamping grooves 4 and the two thrust steel plates 5 are used as reaction force supports together to provide reaction force for a jack, so that the shield machine is more stable and reliable.

As shown in fig. 5, at least two tracks 3 are paved below the shield bracket 2 to ensure that the shield bracket 2 is integrally stable in the pushing process, corresponding jacks 9 can be matched according to the number of the tracks 3, when the number of the tracks 3 is large, the jack 9 with smaller pushing force is selected, and when the number of the tracks 3 is small, the jack 9 with larger pushing force is selected.

As shown in fig. 7-9, at least two stiffening plates 13 are welded at the head of the track 3, an L-shaped plate 12 is welded at the tail of the track 3, a bayonet 15 is formed at the tail of the track 3, the stiffening plates 13 can be clamped to the bayonet 15, the splicing of the track 3 is completed by connecting the stiffening plates 13 at the head of the track 3 with the L-shaped plate 12 at the tail of the other track 3 through the bayonet 15, the strength of the joint of the track 3 can be effectively ensured, meanwhile, the assembly and the disassembly are convenient, and the track 3 can be conveniently recycled.

The size of the stiffening plate 13 is matched with the size of the bayonet 15, that is, the bottom height of the lowest stiffening plate 13 is consistent with the bottom height of the bayonet 15, so that the bottoms of the two assembled rails 3 are parallel, no height difference occurs, and in addition, the length of the stiffening plate 13 is consistent with the length of the bayonet 15, so that the two assembled rails 3 are overlapped on the rear end surfaces together, and no gap or no assembly phenomenon occurs.

In a preferred manner, to ensure the strength of the L-shaped plate 12, the reinforcing plate 14 is welded to the L-shaped plate 12, as shown in FIG. 9.

Example 3

On the basis of embodiment 1 or embodiment 2, as shown in fig. 4, a rubber plate 10 is mounted at the bottom of the shield bracket 2 in this embodiment, and the rubber plate 10 is placed inside the notch of the track 3. The rubber plate 10 slides in the notch of the track 3 and provides a certain height for the shield bracket 2, so that a certain gap is formed between the bottom of the shield bracket 2 and the top of the track 3, and friction between the bottom of the shield bracket 2 and the top of the track 3 when the shield machine 1 slides is reduced.

As shown in fig. 4, a stainless steel plate 8 is fixed in the notch of the track 3, and a tetrafluoro plate 11 is connected to the bottom of the rubber plate 10. The stainless steel plate 8 provides a smooth surface for pushing and sliding of the shield machine 1, and the friction force between the rubber block 10 and the track 3 is effectively reduced by utilizing the characteristic of small friction coefficient between the tetrafluoro plate 11 and the stainless steel plate 8, in addition, four edges and corners of the sliding direction of the tetrafluoro plate 11 are required to be polished before installation, a radius arc of 5mm is polished, and the shield machine 1 is ensured not to be influenced by the assembly of the edge angle joints of the track 3 in the sliding process.

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 shield constructs system of indulging that stands, its characterized in that includes track (3), draw-in groove (4), thrust steel sheet (5) and jack (9), draw-in groove (4) detachable connect in track (3), thrust steel sheet (5) fixed connection in draw-in groove (4), jack (9) one end butt in thrust steel sheet (5), the jack (9) other end is used for the butt in shield bracket (2).

2. A shield over-the-stop longitudinal displacement system according to claim 1, characterized in that a baffle (6) is placed between the thrust steel plate (5) and the jack (9).

3. A shield over-the-stop longitudinal displacement system according to claim 1, characterized in that the track (3) is a channel-shaped member comprising a bottom plate (31) and two flange plates (32), each flange plate (32) being provided with the clamping groove (4).

4. A shield station-crossing longitudinal displacement system according to claim 3, characterized in that the side wall of the clamping groove (4) is provided with a screw hole, the screw hole is connected with a bolt, a backing plate (7) is placed in the clamping groove (4), and the backing plate (7) is used for clamping the flange plate (32).

5. A shield over-the-stop longitudinal moving system according to claim 3, characterized in that a rubber plate (10) is mounted at the bottom of the shield bracket (2), and the rubber plate (10) is placed inside the notch of the track (3).

6. The shield station-crossing longitudinal moving system according to claim 5, wherein a stainless steel plate (8) is fixed in a notch of the track (3), and a tetrafluoro plate (11) is connected to the bottom of the rubber plate (10).

7. A shield station-crossing longitudinal moving system according to any one of claims 1-6, characterized in that the head of the track (3) is connected with a stiffening plate (13), the tail of the track (3) is connected with an L-shaped plate (12), the L-shaped plate (12) and the tail of the track (3) form a bayonet (15), and the stiffening plate (13) can be clamped to the bayonet (15).