Pipeline system for synchronous construction of secondary lining of shield tunnel

Abstract

The utility model discloses a pipeline system for shield tunnel secondary lining synchronous construction, which comprises a template unit, a frame and a support assembly, the template unit is arranged on the periphery of the frame, and the support assembly is connected with the template unit and the frame; the cross section of each formwork unit is in a major arc shape, the frame comprises two oppositely-arranged door frames and a connecting frame for connecting the two door frames, and the door frames are arranged in a rectangular shape so that a passing space can be formed in the frame. According to the pipeline system for the shield tunnel secondary lining synchronous construction, the clearance height of a passing space can be effectively increased, so that normal passing of a shield construction vehicle is facilitated, the safety performance of logistics transportation is improved, synchronous construction of the shield tunnel and the secondary lining can be ensured, a guarantee is provided for safe and stable proceeding of a whole project, and the construction efficiency is improved. And the construction period is effectively shortened.

Description

Technical Field

[0001] This application belongs to the field of tunnel construction technology, specifically relating to a pipeline system for the synchronous construction of secondary lining in shield tunnels. Background Technology

[0002] The tunnel secondary lining construction adopts cast-in-place concrete. First, the steel mesh is tied, then the formwork trolley is erected, and concrete is pumped and poured in layers. After compaction by vibration, it is cured to enhance the structural stability and waterproofing. The tunnel secondary lining trolley is a mobile formwork equipment used for pouring concrete lining. It can adjust the cross-sectional size, support the formwork, and move and position it, improving construction efficiency and quality.

[0003] Currently, shield tunneling is widely used in high-speed rail, highway, and municipal tunnel construction. However, the simultaneous construction of secondary lining within shield tunnels presents numerous challenges. Because shield tunnels have a single circular cross-section and dense, difficult-to-avoid rigid piping, traditional multi-circle splicing arch formwork support systems used in mining are unsuitable. If conventional secondary lining trolley construction piping systems are employed, not only will they have poor process adaptability, but they will also severely restrict construction progress. Utility Model Content

[0004] The purpose of this application is to provide a pipeline system for the synchronous construction of secondary lining in shield tunnels, which can solve the problem that the internal space of the pipeline system in the conventional secondary lining trolley construction is small, resulting in the inability to construct the secondary lining and the shield at the same time.

[0005] To achieve the above objectives, a specific embodiment of this application provides a pipeline system for simultaneous construction of the secondary lining of a shield tunnel, the technical solution of which is as follows:

[0006] A pipeline system for synchronous construction of secondary lining of shield tunnel includes a template unit, a frame, and a support assembly. The template unit is disposed on the outer periphery of the frame, and the support assembly connects the template unit and the frame.

[0007] The template unit has a cross-sectional shape of an arc. The frame includes two opposing portal frames and a connecting frame connecting the two portal frames. The portal frames are rectangular so that a passage space is formed within the frame.

[0008] In one or more embodiments of this application, the gantry includes two opposite and parallel vertical bars and a horizontal bar connected to the ends of the vertical bars. The two vertical bars and the horizontal bar are arranged in a rectangular shape, and the connecting frame is connected to the horizontal bar.

[0009] In one or more embodiments of this application, the support assembly includes a diagonal brace and at least two telescopic members, one end of which is hinged to the template unit and the other end of which is hinged to the diagonal brace. One end of the diagonal brace is hinged to the gantry.

[0010] In one or more embodiments of this application, the support assembly includes two telescopic members located on the same side of the diagonal brace, and the two telescopic members are spread out in a direction away from the diagonal brace.

[0011] In one or more embodiments of this application, the system further includes a base plate, the diagonal brace is hinged to one end of the vertical bar adjacent to the horizontal bar, and an installation space is formed outside the frame, inside the template unit, below the diagonal brace, and on the base plate.

[0012] In one or more embodiments of this application, two installation spaces are formed on both sides of the frame, and the two installation spaces are respectively provided with an internal circulating water pipe and a mud pipe.

[0013] In one or more embodiments of this application, the template unit includes a support and a template mounted on the support, the template is segmented, and the support is located on the side of the crossbar away from the passage space.

[0014] In one or more embodiments of this application, the template unit includes two symmetrically arranged template components, each template component including at least two templates hinged to each other, and a telescopic member connecting one of the templates.

[0015] In one or more embodiments of this application, the system further includes a base plate on which a track is mounted, and the frame is slidable along the extension direction of the track.

[0016] In one or more embodiments of this application, a distributed pouring device is provided above the frame.

[0017] Compared to existing template units with a semi-circular cross-section and an arched frame design, this application presents a pipeline system for simultaneous construction of the secondary lining of a shield tunnel. The template unit has a superior arc cross-section, and the frame, through a gantry structure, creates an internal passageway. This effectively increases the clearance height of the passageway, facilitating the normal passage of shield tunneling vehicles, improving the safety of logistics transportation, ensuring simultaneous construction of the shield tunnel and secondary lining, guaranteeing the safe and stable progress of the entire project, and effectively saving construction time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a cross-sectional schematic diagram of a pipeline system for synchronous construction of secondary lining of a shield tunnel according to an embodiment of this application;

[0020] Figure 2 This is a schematic diagram of the structure of a template unit for a pipeline system used in the synchronous construction of the secondary lining of a shield tunnel, according to one embodiment of this application.

[0021] Figure 3 This is a schematic diagram of the frame and track of a pipeline system for synchronous construction of secondary lining of a shield tunnel according to an embodiment of this application;

[0022] Figure 4 for Figure 3 Enlarged diagram of point A in the middle.

[0023] Explanation of key figure labels:

[0024] 1. Template unit; 11. Support; 12. Template; 2. Frame; 21. Vertical bar; 22. Horizontal bar; 3. Support component; 31. Diagonal brace; 32. Telescopic component; 4. Base plate; 5. Passage space; 6. Internal circulating water pipe; 7. Mud pipe; 8. Track. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of this application.

[0026] Reference Figures 1 to 3 One embodiment of this application discloses a pipeline system for simultaneous construction of the secondary lining of a shield tunnel, comprising a template unit 1, a frame 2, a support component 3, and a base plate 4. The template unit 1 is disposed on the outer periphery of the frame 2, and the support component 3 connects the template unit 1 and the frame 2. A track 8 is installed on the base plate 4, and the frame 2 can slide along the extension direction of the track 8. The cross-sectional shape of the template unit 1 is an arc, and the frame 2 includes two opposing portal frames and a connecting frame connecting the two portal frames. The portal frames are rectangular, so that a passage space 5 is formed within the frame 2. Compared with the existing template unit 1, which has a semi-circular cross-sectional shape, and the frame 2, which has an arched design, this application can effectively increase the clearance height of the passage space 5, thereby facilitating the normal passage of shield tunneling vehicles, improving the safety performance of logistics transportation, ensuring simultaneous construction of the shield tunnel and the secondary lining, providing a guarantee for the safe and stable progress of the entire project, and effectively saving construction time.

[0027] It should be noted that in this embodiment, the cross-section of template unit 1 is formed by cutting template unit 1 with a reference plane, and the reference unit is a plane perpendicular to the extension direction of the tunnel.

[0028] Reference Figure 1 and Figure 3 The gantry includes two opposite and parallel vertical bars 21 and a horizontal bar 22 connected to the ends of the vertical bars 21. The two vertical bars 21 and the horizontal bar 22 are rectangularly arranged, and a connecting frame is connected to the horizontal bar 22. One end of the vertical bar 21 is slidably mounted on the track 8, and the other ends of the two vertical bars 21 are connected by the horizontal bar 22. The two gantry frames are connected by the connecting frame so that a passage space 5 for construction vehicles to pass through is formed inside the frame 2.

[0029] Reference Figure 1 and Figure 4 The support assembly 3 includes a diagonal brace 31 and at least two telescopic members 32. One end of each telescopic member 32 is hinged to the template unit 1, and the other end is hinged to the diagonal brace 31. One end of the diagonal brace 31 is hinged to the gantry frame. In this embodiment, the support assembly 3 includes two telescopic members 32 as an example for illustrative purposes; this is not a limitation on the number of telescopic members 32. The telescopic members 32 can be configured as hydraulic cylinders. The two telescopic members 32 are located on the same side of the diagonal brace 31, and the two telescopic members 32 are arranged in an open manner away from the diagonal brace 31 to ensure the rationality of the structural stress.

[0030] Reference Figure 1 and Figure 2 The template unit 1 includes a support 11 and templates 12 mounted on the support 11. The templates 12 are segmented, and the support 11 is located on the side of the crossbar 22 away from the passage space 5. The template unit 1 includes two symmetrically arranged template assemblies, each template assembly including at least two mutually hinged templates 12, with a telescopic member 32 connecting each template 12. The templates 12 are curved. This embodiment uses two templates 12 per template assembly as an example for illustrative purposes, but this is not a limitation on the number. In this embodiment, the four curved templates 12 of the two template assemblies are interconnected to form the template unit 1 with a superior arc cross-section. When the telescopic member 32 extends or retracts, it can move the templates 12 to adjust their position, facilitating subsequent concrete pouring.

[0031] Reference Figure 1 and Figure 4The diagonal brace 31 is hinged to one end of the vertical rod 21 adjacent to the horizontal rod 22. Installation spaces are formed outside the frame 2, inside the template unit 1, below the diagonal brace 31, and on the base plate 4. In this embodiment, two installation spaces are formed on each side of the frame 2, and an internal circulating water pipe 6 and a mud pipe 7 are respectively installed in the two installation spaces to facilitate tunnel construction. By positioning the support assembly 3 around the base plate 4, the problem of pipeline position conflict in the shield tunnel can be effectively solved, ensuring smooth construction.

[0032] In one optional embodiment, a distributed pouring device is provided above the frame 2. The pouring device is a common device in the art, and will not be described in detail in this embodiment.

[0033] In one optional embodiment, the pipeline system used for the simultaneous construction of the secondary lining of the shield tunnel is also equipped with a transverse platform to allow construction personnel to maintain the internal structure of the system and coordinate operations to complete the secondary lining construction. Additionally, stairs can be provided within the system to allow construction personnel to access different transverse platforms.

[0034] Therefore, this application effectively solves the problems of limited passage space and high safety risks within the frame 2 by using a template unit 1 with a superior arc cross-section and a rectangular gantry. Simultaneously, the structural optimization of the support component 3 addresses the issue of pipeline location interference. Thus, this pipeline system for simultaneous construction of the secondary lining of a shield tunnel can effectively improve the efficiency of the secondary lining construction progress, thereby saving construction costs. It also avoids the safety risks of overlapping construction, promoting the safe and rapid construction of shield tunnel projects.

[0035] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A pipe system for synchronous construction of a second lining of a shield tunnel, characterized in that, The system comprises a template unit (1), a frame (2) and a support assembly (3), the template unit (1) is arranged on the periphery of the frame (2), and the support assembly (3) connects the template unit (1) and the frame (2). The cross-sectional shape of the template unit (1) is an arc of a circle, the frame (2) comprises two oppositely arranged door frames and a connecting frame connecting the two door frames, and the door frames are arranged in a rectangular shape to form a passing space (5) in the frame (2).

2. The pipe system for synchronous construction of the second lining of a shield tunnel according to claim 1, characterized in that, The door frame comprises two oppositely arranged vertical rods (21) and a horizontal rod (22) connected to the end of the vertical rod (21), and the two vertical rods (21) and the horizontal rod (22) are arranged in a rectangular shape, and the connecting frame is connected to the horizontal rod (22).

3. The pipe system for synchronous construction of the second lining of a shield tunnel according to claim 2, characterized in that, The support assembly (3) comprises a diagonal strut (31) and at least two telescopic members (32), one end of the telescopic member (32) is hinged to the template unit (1), the other end is hinged to the diagonal strut (31), and one end of the diagonal strut (31) is hinged to the door frame.

4. The pipe system for synchronous construction of the second lining of a shield tunnel according to claim 3, characterized in that, The support assembly (3) comprises two telescopic members (32), the two telescopic members (32) are located on the same side of the diagonal strut (31), and the two telescopic members (32) are arranged in an open manner away from the diagonal strut (31).

5. The pipe system for synchronous construction of the second lining of a shield tunnel according to claim 3, characterized in that, The system further comprises a bottom plate (4), one end of the diagonal strut (31) is hinged to the vertical rod (21) adjacent to the horizontal rod (22), and an installation space is formed outside the frame (2), inside the template unit (1), below the diagonal strut (31) and on the bottom plate (4).

6. The pipe system for synchronous construction of the second lining of a shield tunnel according to claim 5, characterized in that, Two installation spaces are formed on both sides of the frame (2), respectively, and an inner circulating water pipe (6) and a slurry pipeline (7) are arranged in the installation space, respectively.

7. The pipe system for synchronous construction of the second lining of a shield tunnel according to claim 3, characterized in that, The template unit (1) comprises a support (11) and a template (12) mounted on the support (11), the template (12) is arranged in sections, and the support (11) is arranged on the side of the horizontal rod (22) away from the passing space (5).

8. The pipe system for synchronous construction of the second lining of a shield tunnel according to claim 7, characterized in that, The template unit (1) comprises two symmetrically arranged template assemblies, each template assembly comprises at least two hingedly connected templates (12), and one telescopic member (32) is connected to one template (12).

9. The pipe system for synchronous construction of the second lining of a shield tunnel according to claim 1, characterized in that, The system further comprises a bottom plate (4), and a track (8) is mounted on the bottom plate (4), and the frame (2) can slide along the extension direction of the track (8).

10. The pipe system for synchronous construction of the second lining of a shield tunnel according to claim 1, characterized in that, A distributed pouring device is arranged above the frame (2).

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