Mortar reinforcing device for shield tunnel

Abstract

The utility model provides a mortar reinforcing device for a shield tunnel, and aims to solve the problems that in the prior art, a supporting structure cannot be modularly designed and is inconvenient to disassemble and assemble, and the position of a reinforcing device cannot be synchronously updated along with the project progress. The device comprises a plurality of reinforcing plates correspondingly connected with a wall body, supporting structures are arranged in the reinforcing plates, each supporting structure is composed of a plurality of supporting legs and a supporting frame, and the supporting legs and the supporting frames are connected through hydraulic supporting structures to form a modular supporting system. During use, the reinforcing plate is connected with a wall body according to the size of a tunnel and construction requirements, then the supporting structure is installed, and the hydraulic supporting structure is adjusted to adapt to stress changes. According to the modular design, the device can be rapidly assembled and disassembled, meanwhile, the supporting strength of the hydraulic supporting structure can be dynamically adjusted according to actual stress in the construction process, and the stability of the tunnel is ensured.

Description

TECHNICAL FIELD

[0001] The utility model provides a reinforcing device belongs to shield tunnel technical field, especially relates to a kind of mortar reinforcing device of shield tunnel. BACKGROUND

[0002] Shield tunnel is a kind of tunnel structure formed by shield machine underground excavation construction.It is cut by cutterhead of shield machine or rock, while under the shelter of shield machine, segment assembly is carried out, and tunnel lining is gradually formed.Shield tunnel basic structure includes tunnel main body structure and accessory facilities, main body structure is assembled by prefabricated segment, segment is connected by bolt or welding etc., and forms annular and longitudinal stable structure, tunnel interior can be set according to need rail, cable etc., and it has the advantages such as high degree of mechanization, little influence on surrounding environment, and is widely used in urban subway, underground comprehensive pipe gallery etc.

[0003] In the existing shield tunnel grouting cooling and reinforcing process, the traditional support structure often cannot realize modular design, which leads to many inconveniences in disassembly and installation process.Due to the non-modularization of support structure, construction personnel need to carry out a lot of welding and assembly work on site, which not only consumes time and effort, but also easily affects construction quality and safety due to improper operation.In addition, this fixed support structure cannot be flexibly adjusted in position along with engineering progress, and once the position of reinforcing device needs to be updated, complex disassembly and installation operations must be carried out again, which not only increases construction cost, but also may cause construction progress delay. UTILITY MODEL CONTENTS

[0004] In order to make up for the deficiencies of the prior art, the present application provides a mortar reinforcing device for shield tunnel, which solves the problems of non-modular design of existing support structure, inconvenience in disassembly and installation, and inability to update the position of reinforcing device along with engineering progress.

[0005] In order to solve the above technical problems, the utility model provides the following technical scheme: a mortar reinforcing device for shield tunnel, comprising a plurality of reinforcing plates connected corresponding to the wall body, a support structure is arranged inside the reinforcing plate, the support structure comprises a plurality of support feet arranged inside the reinforcing plate, a support frame corresponding to the reinforcing plate is arranged above the support feet, and a plurality of evenly distributed hydraulic support structures are arranged between the support frame and the reinforcing plate.

[0006] Preferably, a connecting piece is fixedly connected to one end of the reinforcing plate, the reinforcing plates are connected end to end by means of the connecting piece, and a first fixing piece, a second fixing piece and a third fixing piece are arranged on one side of the reinforcing plate close to the support structure, which are symmetrically distributed and respectively connected to the hydraulic support structures.

[0007] Preferably, upper ends of the support legs are mechanically connected with a cross beam, the cross beam is connected with the support frame, a triangular connector is arranged at a lower end surface of the support frame and the cross beam, two corners of the triangular connector away from the connecting frame are provided with transverse shaft through holes penetrating through the triangular connector.

[0008] Preferably, the hydraulic support structure comprises a first hydraulic rod, a second hydraulic rod and a third hydraulic rod which are movably connected with the first fixing member, the second fixing member and the third fixing member respectively, and further comprises a fourth hydraulic rod connecting the cross beam and the corresponding support leg.

[0009] The other end of the first hydraulic rod is connected with the support frame, the other ends of the second hydraulic rod and the third hydraulic rod are correspondingly arranged in the transverse shaft through holes of the triangular connector, and the two ends of the hydraulic support structure are connected by locking bolts.

[0010] Preferably, the support leg is mechanically connected with a driving structure at an end away from the support frame, the driving structure comprises a preset track arranged at the bottom side of the support structure, a roller is arranged on the preset track, the roller is mechanically connected with a driving motor through a gear set at one side of the roller, and the driving structure and the support leg are movably connected through a telescopic support rod.

[0011] Preferably, the reinforcing plate is provided with a grouting hole penetrating through the reinforcing plate, and the inside of the reinforcing plate is provided with a plurality of reinforcing plates which are uniformly distributed.

[0012] The one or more technical solutions provided in the embodiments have at least the following technical effects or advantages:

[0013] 1. Modular design and connection method: the support structure inside the reinforcing plate is composed of a plurality of support legs and support frames, which are connected through a hydraulic support structure to form a detachable modular system. This design makes the device highly prefabricated in the factory, and only needs to connect the modules through bolts during on-site installation, greatly simplifying the installation and disassembly process.

[0014] 2. Flexible adjustment and synchronous update: the setting of the hydraulic support structure enables the support device to dynamically adjust the support force according to the actual stress condition in the tunnel construction process, ensuring the stability of the tunnel during the construction process. At the same time, the modular design enables the reinforcing device to be quickly disassembled and reassembled, and the position of the reinforcing device can be updated synchronously with the progress of the project.

[0015] 3. Construction efficiency and economic benefit: the combination of modular design and hydraulic support structure not only improves the construction efficiency, but also reduces the on-site construction difficulty and production cost. By adjusting the size and parameters of the support structure, the device can be applied to complex tunnel reinforcement projects under different working conditions, and has good operability and economic benefit.

[0016] 4、Construction safety is improved: through the combination of the modular support structure and the hydraulic support, the device can effectively deal with the deformation, settlement and other problems caused by the stress change around the tunnel, quickly close and reinforce the tunnel, and improve the safety in the construction process.

[0017] Other advantages, objects and features of the present application will be set forth in part in the following description, and in part will become apparent to those skilled in the art from the examination of the following, or can be learned by practice of the present application, based on the study of the following, and will be apparent to those skilled in the art. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Fig. 1 is a perspective view of a mortar reinforcing device for a shield tunnel according to the present application;

[0019] Figure 2 Fig. 2 is a sectional view of the mortar reinforcing device for the shield tunnel according to the present application from another perspective;

[0020] Figure 3 Fig. 3 is an enlarged view of the hydraulic support structure of the mortar reinforcing device for the shield tunnel according to the present application;

[0021] Figure 4 Fig. 4 is a schematic view of the inner structure of the reinforcing plate of the mortar reinforcing device for the shield tunnel according to the present application;

[0022] Figure 5 Fig. 5 is a perspective view of the support foot of the mortar reinforcing device for the shield tunnel according to the present application;

[0023] Figure 6 Fig. 6 is a schematic view of the installation of the hydraulic support structure of the mortar reinforcing device for the shield tunnel according to the present application;

[0024] Figure 7 Fig. 7 is a perspective view of the driving structure of the mortar reinforcing device for the shield tunnel according to the present application.

[0025] As shown in the drawings:

[0026] 1, reinforcing plate;

[0027] 11, hydraulic support structure; 12, connecting piece; 13, first fixing piece; 14, second fixing piece; 15, third fixing piece; 16, cross beam; 17, triangular connecting piece; 18, grouting hole; 19, fixed plate;

[0028] 2, support structure;

[0029] 21. Support leg; 22. Support frame; 23. First hydraulic rod; 24. Second hydraulic rod; 25. Third hydraulic rod; 26. Fourth hydraulic rod; 27. Connecting rod;

[0030] 3. Drive structure;

[0031] 31. Preset track; 32. Rollers; 33. Gear set; 34. Drive motor. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0035] like Figure 1 , 2 As shown in Figure 3, a mortar reinforcement device for a shield tunnel includes several reinforcement plates 1 connected to the wall, with corresponding support structures 2 inside each plate. The support structure 2 includes several support legs 21 placed inside the reinforcement plates 1. Above the support legs 21 is a support frame 22 corresponding to the reinforcement plates 1. Several evenly distributed hydraulic support structures 11 are provided between the support frame 22 and the reinforcement plates 1. One end of each reinforcement plate 1 is fixedly connected to a connector 12, enabling end-to-end connection. A first fixing member 13, a second fixing member 14, and a third fixing member 15, symmetrically distributed and respectively connected to the hydraulic support structures 11, are provided on the side near the support structure 2. A crossbeam 16 is mechanically connected between the upper ends of the support legs 21. The crossbeam 16 is correspondingly connected to the support frame 22. A triangular connector 17 is provided at the connection between the lower end face of the support frame 22 and the crossbeam 16. The triangular connector 17 is provided with transverse through holes at the two corners away from the support frame 22. The support frame 22, the support legs 21 and the crossbeam 16 are all connected by bolts.

[0036] In this embodiment, the shield tunnel wall is effectively reinforced by the corresponding connection of the reinforcing plate 1 and the wall body and the design of the internal support structure 2. The cooperation of the support feet 21 and the support frame 22, as well as the uniform distribution of the hydraulic support structure 11, enables the entire device to flexibly adjust the support strength according to the actual stress condition of the tunnel wall, thereby better adapting to various complex working conditions in tunnel construction. The reinforcing plate 1 is connected end to end by means of the connecting piece 12 to form a continuous reinforcing system, enhancing the overall stability. At the same time, the symmetrical connection of the first fixing piece 13, the second fixing piece 14 and the third fixing piece 15 to the hydraulic support structure 11 further ensures the stability of the support structure 2. In addition, the design of the cross beam 16 and the triangular connecting piece 17 provides additional support strength for the support structure 2, and the connection mode of the bolt structure facilitates on-site quick installation and disassembly.

[0037] The beneficial effects produced by the combination of these components are: on the one hand, through the modular design of the support structure 2 and the reinforcing plate 1, the shield tunnel reinforcing device is quickly assembled and disassembled, greatly improving the construction efficiency and reducing the construction cost; on the other hand, the flexible adjustment capability of the hydraulic support structure 11 enables the device to dynamically adjust the support strength according to the actual stress condition of the tunnel wall, effectively avoiding wall deformation or damage caused by insufficient or excessive support, and significantly improving the construction quality and safety of the shield tunnel.

[0038] As shown in Figure 3 , 4 , 6, the hydraulic support structure 11 includes first, second and third hydraulic rods 23, 24 and 25 respectively movably connected with the first, second and third fixing pieces 13, 14 and 15, and a fourth hydraulic rod 26 connecting the cross beam 16 and the corresponding support foot 21. The other end of the first hydraulic rod 23 is connected with the support frame 11, and the other ends of the second and third hydraulic rods 24 and 25 are respectively connected with the through hole of the horizontal shaft of the triangular connecting piece 17. Both ends of the hydraulic support structure 11 are connected by locking bolts. The end of the support foot 21 away from the support frame 22 is mechanically connected with the driving structure 3, the reinforcing plate 1 is provided with a grouting hole 18 penetrating through itself, and the inside of the reinforcing plate 1 is provided with a plurality of evenly distributed fixed plates 19. The single-sided support feet 21 are movably connected with a connecting rod 27.

[0039] In this embodiment, the hydraulic support structure 11 is connected with the support structure 2 inside the reinforcing plate 1 through the first hydraulic rod 23, the second hydraulic rod 24, the third hydraulic rod 25 and the fourth hydraulic rod 26, wherein the first hydraulic rod 23 is connected with the support frame 22, the second hydraulic rod 24 and the third hydraulic rod 25 are connected with the through hole of the horizontal shaft of the triangular connecting piece 17, and the fourth hydraulic rod 26 is connected with the crossbeam 16 and the support leg 21. This connection mode enables the hydraulic support structure 11 to form a stable support network inside the reinforcing plate 1. At the same time, the support leg 21 is mechanically connected through the driving structure 3, and the driving structure 3 realizes the moving function through the preset track 31, the roller 32, the gear set 33 and the driving motor 34, so as to flexibly adjust the support position according to the construction demand. The grouting hole 18 on the reinforcing plate 1 and the uniformly distributed fixed plate 19 inside further enhance the stability of the wall body, and the setting of the connecting rod 27 ensures the cooperation between the support legs 21.

[0040] The beneficial effects produced by the combination of these components are: the flexible connection and adjustability of the hydraulic support structure 11 enable the entire reinforcing device to dynamically adjust the support degree according to the actual stress condition in the tunnel construction process, thereby effectively avoiding the deformation or damage of the wall body caused by insufficient or excessive support. The setting of the driving structure 3 realizes the moving function of the support device, so that the device can update the position synchronously with the construction progress of the shield tunnel, improving the construction efficiency. The design of the grouting hole 18 and the internal fixed plate 19 further enhances the stability of the wall body and improves the overall safety of the tunnel. The cooperation of the connecting rod 27 ensures the stability of the support leg 21 and further enhances the reliability of the entire reinforcing device.

[0041] As shown in Figure 5 , 7 , the driving structure 3 includes a preset track 31 placed on the bottom side of the support structure 2, and the preset track 31 is provided with a roller 32 correspondingly. The side of the roller 32 is mechanically connected with a driving motor 34 through a gear set 33, and the driving structure 3 and the support leg 21 are movably connected through the telescopic support rod.

[0042] In this embodiment, the driving structure 3 is installed on the bottom side of the support structure 2, and its core components include a preset track 31, a roller 32, a gear set 33, and a driving motor 34. The preset track 31 is fixed at the bottom of the tunnel, providing a stable moving path for the driving structure 3; the roller 32 is installed on the preset track 31, realizing the moving function of the support structure 2 through cooperation with the track. One side of the roller 32 is mechanically connected to the driving motor 34 through the gear set 33, and the driving motor 34 drives the roller 32 to rotate through the gear set 33, thereby realizing the directional movement of the support structure 2 along the preset track 31. In addition, the driving structure 3 is movably connected to the support foot 21 through a telescopic support rod, which can adjust the length according to the construction requirements, ensuring that the support structure 2 always remains stable during movement.

[0043] The beneficial effects produced by the combination of these components are: the driving structure 3 realizes the flexible movement function of the support structure 2 through the design of the preset track 31 and the roller 32, can quickly adjust the position of the reinforcing device according to the progress and requirements of the shield tunnel construction, greatly improving the construction efficiency. The cooperation of the driving motor 34 and the gear set 33 provides a stable power source for the movement of the support structure 2, ensuring the stability and reliability of the movement process. The movable connection mode of the telescopic support rod further enhances the adaptability of the device, enabling it to maintain stable support under different terrains and construction conditions. Overall, the design of the driving structure 3 not only improves the flexibility and adaptability of the shield tunnel reinforcing device, but also significantly reduces the time and labor cost in the construction process, improving the overall efficiency and safety of the construction.

[0044] In use, first, according to the actual size of the shield tunnel and the construction requirements, connect several reinforcing plates 1 with the tunnel wall in correspondence to form a basic reinforcing frame. Then, install the support structure 2 inside the reinforcing plate 1, including several support feet 21 and support frames 22, and connect the support frame 22 with the reinforcing plate 1 through the hydraulic support structure 11 to ensure the stability of the overall structure. This modular design enables the device to be quickly assembled and disassembled, while the hydraulic support structure can dynamically adjust the support force according to the stress changes during the construction process, thereby effectively solving the problems of non-modular design of the support structure, inconvenience of disassembly and installation, and inability to update the position of the reinforcing device synchronously with the progress of the project in the prior art.

[0045] Although the present utility model has been disclosed as above with preferred embodiments, it is not intended to limit the present utility model, and anyone skilled in the art can make various modifications and modifications without departing from the spirit and scope of the present utility model, therefore the protection scope of the present utility model should be defined by the claims.

Claims

1. A mortar reinforcement device for a shield tunnel, comprising a plurality of reinforcement plates (1) connected in correspondence with a wall body, characterized in that: The inside of the reinforcing plate (1) is provided with a support structure (2), the support structure (2) comprises a plurality of support feet (21) arranged in the reinforcing plate (1), a support frame (22) corresponding to the reinforcing plate (1) is arranged above the support feet (21), and a plurality of uniformly distributed hydraulic support structures (11) are arranged between the support frame (22) and the reinforcing plate (1).

2. The apparatus for reinforcing the mortar of a shield tunnel according to claim 1, wherein: One end of the reinforcing plate (1) is fixedly connected with a connecting piece (12), the reinforcing plate (1) is connected end to end through the connecting piece (12), and the side of the reinforcing plate (1) close to the support structure (2) is provided with a first fixing piece (13), a second fixing piece (14) and a third fixing piece (15) which are symmetrically distributed and correspondingly connected with the hydraulic support structures (11) respectively.

3. A device for reinforcing the ground in the construction of a tunnel according to claim 2, characterized in that: The upper ends of the support feet (21) are mechanically connected with a cross beam (16), the cross beam (16) is correspondingly connected with the support frame (22), the connection between the support frame (22) and the lower end surface of the cross beam (16) is provided with a triangular connecting piece (17), and the two corners of the triangular connecting piece (17) away from the support frame (22) are provided with transverse shaft through holes which transversely penetrate the triangular connecting piece (17); the support frame (22) is connected with the support feet (21) and the cross beam (16) through a bolt structure.

4. The apparatus for reinforcing the mortar of a shield tunnel according to claim 3, wherein: The hydraulic support structure (11) comprises a first hydraulic rod (23), a second hydraulic rod (24) and a third hydraulic rod (25) which are movably connected with the first fixing piece (13), the second fixing piece (14) and the third fixing piece (15) respectively; and the hydraulic support structure (11) further comprises a fourth hydraulic rod (26) connecting the cross beam (16) and the corresponding support foot (21). The other end of the first hydraulic rod (23) is connected with the support frame (22), the other ends of the second hydraulic rod (24) and the third hydraulic rod (25) are correspondingly arranged in the transverse shaft through holes of the triangular connecting piece (17), and the two ends of the hydraulic support structure (11) are connected through locking bolts.

5. The apparatus according to claim 1, wherein: The end of the support foot (21) away from the support frame (22) is mechanically connected with a driving structure (3), the driving structure (3) comprises a preset track (31) arranged at the bottom side of the support structure (2), a roller (32) is correspondingly arranged on the preset track (31), one side of the roller (32) is mechanically connected with a driving motor (34) through a gear set (33), and the driving structure (3) and the support foot (21) are movably connected through a telescopic support rod.

6. The apparatus of claim 1, wherein: The reinforcing plate (1) is provided with a grouting hole (18) penetrating through itself, and the inside of the reinforcing plate (1) is provided with a plurality of uniformly distributed fixed plates (19); the support feet (21) are movably connected with a connecting rod (27) between the single side.

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