Convenient and fast shield tunnel steel pipe piece vacuum chuck assembling auxiliary device and construction method of convenient and fast shield tunnel steel pipe piece vacuum chuck assembling auxiliary device

Abstract

The invention discloses a shield tunnel steel pipe piece vacuum chuck assembling convenient auxiliary device and a construction method thereof.The shield tunnel steel pipe piece vacuum chuck assembling convenient auxiliary device comprises a shield tunnel steel pipe piece and a pipe piece adsorption connecting assembly, the shield tunnel steel pipe piece is of a fan-shaped structure, the pipe piece adsorption connecting assembly comprises an inner arc plate, an insertion barrel and a connecting piece, and the inner arc plate is of an arc-shaped structure; the inner arc plate is arranged on the base, the radian of the inner arc plate is matched with that of a shield tunnel steel pipe piece, a reinforcing structure is arranged on the outer side face of the inner arc plate, the inserting barrel is fixedly arranged on the inner arc plate, the opening end of the inserting barrel faces the outer side of the inner arc plate, and the connecting piece is connected with the reinforcing structure and the shield tunnel steel pipe piece. The reinforcing structure is arranged on the outer side face, serving as the connecting wall face, of the inner arc plate, so that the strength performance of the inner arc plate is enhanced, the shield tunnel steel pipe piece and the adsorption equipment are better guaranteed under the protection of the reinforcing structure, and the forming quality of a tunnel is better guaranteed.

Description

Technical Field

[0001] The invention relates to the field of tunnel construction equipment, and in particular to a convenient auxiliary device for assembling vacuum suction cups of steel pipe segments in a shield tunnel and a construction method thereof. Background Art

[0002] The tunnel segment is the main assembly component of the shield construction and the innermost barrier of the tunnel. It is responsible for resisting soil pressure, groundwater pressure and some special loads. The shield segment is the permanent lining structure of the shield tunnel. The quality of the shield segment is directly related to the overall quality and safety of the tunnel, and affects the waterproof performance and durability of the tunnel.

[0003] The structural feature of the steel pipe segment is that there are many cavities on the inner arc surface, which is not conducive to the direct adsorption of the vacuum suction cup. When the pipe segment is processed, an arc-shaped steel plate is added to its inner arc surface to provide an adsorption surface for the vacuum suction cup, which becomes an effective method for assembling the steel pipe segment. However, most shield tunnels must meet the requirements of structural strength, durability and waterproofing in design, and secondary concrete lining construction of the tunnel is required. The empty cavities of the steel pipe segment must be filled with concrete. For this reason, the arc-shaped adsorption plate of the steel pipe segment must be removed before the secondary concrete lining construction of the tunnel in the later stage. The arc-shaped adsorption plate should be removed as quickly as possible. Combined with the production process of the steel pipe segment, the arc-shaped adsorption plate is welded after the steel pipe segment is processed and formed, making it impossible to weld the weld behind the adsorption plate.

[0004] For example, in the Chinese patent literature, the authorization announcement number CN108915733B discloses a steel pipe segment structure suitable for vacuum suction cup adsorption and a manufacturing method thereof, wherein bolt holes are pre-opened on the adsorption steel plate, and bolts with sealing washers are used to connect to the inner arc steel plate of the steel pipe segment, and the outer periphery of the adsorption steel plate is connected to the inner arc steel plate of the steel pipe segment by welding. When removing the adsorption steel plate, it is only necessary to use a carbon arc air planer to blow off the weld seam on the outer periphery of the adsorption steel plate and remove all connecting bolts, thereby solving the problem of difficulty in assembling and subsequently dismantling steel pipe segments with compartments by an assembly machine with vacuum suction cups, and is theoretically and technically feasible. The above scheme is mainly used for small shield segments. When used for large shield segments, the adsorption steel plate cannot support and bear the weight of the large shield segment. Therefore, it is necessary to develop a tooling device with a stable structure to improve working stability. Summary of the invention

[0005] The purpose of the present invention is to provide a shield tunnel steel pipe segment vacuum suction cup assembly convenient auxiliary device and a construction method thereof, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a convenient auxiliary device for assembling vacuum suction cups of shield tunnel steel pipe segments, comprising: A shield tunnel steel pipe segment, wherein the shield tunnel steel pipe segment is a fan-shaped structure; The pipe segment adsorption connection component includes an inner arc plate, an insert barrel and a connecting piece. The inner arc plate is an arc-shaped structure, and the curvature is adapted to the shield tunnel steel pipe segment. The outer side of the inner arc plate is provided with a reinforcing structure. The insert barrel is fixed on the inner arc plate, and the open end of the insert barrel faces the outside of the inner arc plate. The connecting piece is respectively connected to the reinforcing structure and the shield tunnel steel pipe segment.

[0007] Preferably, the shield tunnel steel segments are composite segments of steel and reinforced concrete.

[0008] Preferably, the reinforcement structure comprises a plurality of longitudinal ribs and a plurality of transverse ribs, and the longitudinal ribs and the transverse ribs are staggered so that the reinforcement structure as a whole presents a grid structure.

[0009] Preferably, the reinforcement structure includes a left reinforcement area, a middle reinforcement area and a right reinforcement area, four longitudinal ribs are arranged along the longitudinal direction, six transverse ribs are arranged along the transverse direction, two of the transverse ribs are arranged at the left side of the inner arc plate to form a left reinforcement area, two of the transverse ribs are arranged at the middle of the inner arc plate to form a middle reinforcement area, and two of the transverse ribs are arranged at the left side of the inner arc plate to form a right reinforcement area.

[0010] Preferably, the transverse ribs include 12 side transverse ribs and 6 middle transverse ribs, wherein 6 side transverse ribs are arranged at the front end of the outer side surface of the inner arc plate, and the other 6 side transverse ribs are arranged at the rear end of the outer side surface of the inner arc plate, and the two ends of the side transverse ribs are respectively welded to the two longitudinal ribs, and the 6 middle transverse ribs are arranged in the middle part of the outer side surface of the inner arc plate, and the two ends of the middle transverse ribs are respectively welded to the two middle longitudinal ribs.

[0011] Preferably, the connecting member is a connecting side plate, wherein two longitudinal ribs are respectively arranged at two ends of the transverse rib, and a plurality of connecting side plates are arranged on the outer side surfaces of the two longitudinal ribs.

[0012] Preferably, at least two mounting holes are provided on the connecting side plate, and the longitudinal ribs are connected to the mounting holes by bolts.

[0013] Preferably, at least two insert barrels are provided, and are axially symmetrically arranged on the inner arc plate.

[0014] Preferably, a gasket is provided on the side of the longitudinal rib away from the connecting side plate, the side edge of the gasket is welded to the longitudinal rib, and the outer side surface of the gasket is welded to the shield tunnel steel pipe segment.

[0015] Preferably, it also includes an embedded connecting part, which includes a positioning part, a connecting part and an expansion part in sequence. The positioning part is arranged in a stepped manner and includes a first positioning segment, a second positioning segment and a third positioning segment arranged in sequence. The diameter of the first positioning segment is smaller than that of the second positioning segment, and the diameter of the second positioning segment is smaller than that of the third positioning segment. The two ends of the second positioning segment are respectively connected to the first positioning segment and the third positioning segment, and the third positioning segment is connected to the connecting part. The two ends of the connecting part are respectively connected to the positioning part and the expansion part, and the diameter of the connecting part decreases from the middle to the two ends, and a conical surface is formed at the two ends. A number of expansion steps are distributed on the expansion part, and a positioning groove is provided on the side of the shield tunnel steel pipe segment, and a positioning step is provided on the wall of the positioning groove, and the positioning step is adapted to the positioning part.

[0016] A construction method for shield tunnel steel pipe segments is implemented based on the above-mentioned shield tunnel steel pipe segment vacuum suction cup assembly convenient auxiliary device, comprising the following steps: 1) Place the inner arc plate, longitudinal ribs, side transverse ribs and middle transverse ribs into the bending machine for bending; 2) After the bending is completed, the four longitudinal ribs are welded to the outer arc surface of the inner arc plate in a longitudinal distribution, and then 12 side transverse ribs are selected, of which 6 side transverse ribs are welded to the front end of the outer side surface of the inner arc plate, and the other 6 side transverse ribs are welded to the rear end of the outer side surface of the inner arc plate, and all 12 side transverse ribs are welded between the two adjacent longitudinal ribs to form a segment adsorption connection assembly with a reinforced structure; 3) Drill holes on the inner arc plate, avoid the longitudinal ribs and transverse ribs, insert the barrel into the hole and weld it; 4) Install three connectors on the outside of the two longitudinal ribs close to the outside by pre-tightening with bolts, and weld three gaskets on the inside; 5) Fit the outer arc side of the inner arc plate with the reinforcement structure to the shield tunnel steel segment, so that the connectors and gaskets are in contact with the shield tunnel steel segment, and then weld until the welding is completed, and then tighten the bolts; 6) Use the negative pressure adsorption equipment to fit the inner arc surface of the inner arc plate, insert the insert bucket through the positioning structure on the negative pressure adsorption equipment, and then lift the shield tunnel steel segment with the segment adsorption connection assembly installed for installation; 7) After installation, dismantle the pipe segment adsorption connection assembly. Cut the gasket first and then remove the bolts.

[0017] Compared with the prior art, the beneficial effects of the present invention include: 1. By setting a reinforcement structure on the outer side of the inner arc plate as the connecting wall, the strength performance of the inner arc plate is enhanced, and the shield tunnel steel segment and the adsorption equipment are better protected by the reinforcement structure, so that the tunnel forming quality is more guaranteed; 2. The reinforcement structure includes the left reinforcement area, the middle reinforcement area and the right reinforcement area, which are formed by a plurality of longitudinal ribs and a plurality of transverse ribs interlaced. The longitudinal ribs, transverse ribs and inner arc plates work together to form a reinforcement structure. The force system is clear, the durability is more reliable, and the assembly is convenient; 3. By connecting the side panels as connectors, after the assembly work is completed and the segment adsorption connection components need to be disassembled, only the bolts need to be removed. The connection position of the connectors is more intuitive and easy to judge, which facilitates the disassembly work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional schematic diagram of the present invention.

[0019] Figure 2 It is a cross-sectional schematic diagram of the pipe segment adsorption connection assembly in the present invention.

[0020] Figure 3 It is a schematic diagram of the outer side surface of the pipe segment adsorption connection assembly in the present invention.

[0021] Figure 4 It is a cross-sectional schematic diagram of the barrel insertion in the present invention.

[0022] Figure 5 It is a schematic diagram of the structure of the connecting piece in the present invention.

[0023] In the figure: shield tunnel steel segment 10, segment adsorption connection assembly 20, inner arc plate 210, insert barrel 220, connector 230, mounting hole 2301, reinforcement structure 240, left reinforcement area 241, middle reinforcement area 242, right reinforcement area 243, longitudinal rib 2401, transverse rib 2402, gasket 250. DETAILED DESCRIPTION

[0024] Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein, which are instead provided for a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0025] It should be understood that the various steps described in the method embodiments of the present invention may be performed in different orders and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present invention is not limited in this respect.

[0026] The term "including" and its variations used herein are open inclusions, i.e., "including but not limited to". The term "connected" may be directly connected or indirectly connected through intermediate components (elements). The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.

[0027] It should be noted that the concepts such as "first" and "second" mentioned in the present invention are only used to distinguish between devices, modules or units, and are not used to limit these devices, modules or units to be different devices, modules or units, nor are they used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0028] Please combine Figures 1 to 5 The shield tunnel steel pipe segment vacuum suction cup assembly convenient auxiliary device shown includes a shield tunnel steel pipe segment 10 and a pipe segment suction connection assembly 20. The shield tunnel steel pipe segment 10 is a fan-shaped structure. This structure is a prior art and is not explained in detail. The pipe segment adsorption connection assembly 20 includes an inner arc plate 210, an insert barrel 220 and a connecting piece 230. The inner arc plate 210 is an arc-shaped structure, and the curvature is adapted to the shield tunnel steel pipe segment 10. The outer side surface of the inner arc plate 210 is provided with a reinforcing structure 240. The insert barrel 220 is fixed on the inner arc plate 210, and the open end of the insert barrel 220 faces the outside of the inner arc plate 210. The connecting piece 230 is respectively connected to the reinforcing structure 240 and the shield tunnel steel pipe segment 10; to be precise, the strength performance of the inner arc plate 210 is strengthened by the reinforcing structure 240, and the shield tunnel steel pipe segment 10 and the adsorption equipment are better guaranteed under the protection of the reinforcing structure 240, so that the forming quality of the tunnel is more guaranteed.

[0029] The shield tunnel steel segment 10 is a composite segment of steel and reinforced concrete; it is a common type of shield tunnel steel segment 10, in which steel components and concrete or reinforced concrete components are combined into a whole and work together, and has some characteristics of both steel structure and reinforced concrete structure.

[0030] The reinforcement structure 240 includes a plurality of longitudinal ribs 2401 and a plurality of transverse ribs 2402, and the longitudinal ribs 2401 and the transverse ribs 2402 are staggered so that the reinforcement structure 240 as a whole is a grid structure; specifically, the reinforcement structure 240 includes a left reinforcement area 241, a middle reinforcement area 242 and a right reinforcement area 243, four longitudinal ribs 2401 are arranged along the longitudinal direction, and six transverse ribs 2402 are arranged along the transverse direction, of which two transverse ribs 2402 are arranged at the left side of the inner arc plate 210 to form the left reinforcement area 241, two transverse ribs 2402 are arranged at the middle of the inner arc plate 210 to form the middle reinforcement area 242, and two transverse ribs 2402 are arranged at the left side of the inner arc plate 210 , forming a right reinforcement area 243; more specifically, the transverse ribs 2402 include 12 side transverse ribs and 6 middle transverse ribs, wherein 6 side transverse ribs are arranged at the front end of the outer side surface of the inner arc plate 210, and the other 6 side transverse ribs are arranged at the rear end of the outer side surface of the inner arc plate 210, and the two ends of the side transverse ribs are respectively welded to the two longitudinal ribs 2401, wherein 6 middle transverse ribs are arranged in the middle of the outer side surface of the inner arc plate 210, and the two ends of the middle transverse ribs are respectively welded to the two middle longitudinal ribs 2401; the reinforcement structure 240 is formed by the staggered plurality of longitudinal ribs 2401 and the plurality of transverse ribs 2402, and the longitudinal ribs 2401 and the transverse ribs 2402 work together to form a reinforcement structure 240 body, the force system is clear, the durability is more reliable, and the assembly is convenient.

[0031] The connecting piece 230 is a connecting side plate, wherein two longitudinal ribs 2401 are respectively arranged at the two ends of the transverse rib 2402, and the outer side surfaces of the two longitudinal ribs 2401 are provided with multiple connecting side plates. To be precise, at least two mounting holes 2301 are provided on the connecting side plate, and the longitudinal ribs 2401 are connected to the mounting holes 2301 by bolts. After the connecting side plate is pre-tightened and installed on the side of the longitudinal rib 2401, the connecting side plate is welded to the shield tunnel steel segment 10, and the bolts are tightened after the welding is completed; after the assembly work is completed and the segment adsorption connection assembly 20 needs to be disassembled, it is only necessary to remove the bolts. The connection position of the connecting piece 230 is more intuitive and easy to judge, which facilitates the disassembly work.

[0032] At least two inserting barrels 220 are provided, and are axially symmetrically arranged on the inner arc plate 210 to be used for positioning the adsorption equipment.

[0033] A gasket 250 is provided on the side of the longitudinal rib 2401 away from the connecting side plate, the side of the gasket 250 is welded to the longitudinal rib 2401, and the outer side of the gasket 250 is welded to the shield tunnel steel pipe segment 10; when bolts and connecting side plates are used to connect the shield tunnel steel pipe segment 10 and the pipe segment adsorption connection assembly 20, the gasket 250 is used to enhance the connection performance of the two.

[0034] The shield tunnel steel pipe segment vacuum suction cup assembly convenient auxiliary device is used to implement the shield tunnel steel pipe segment construction method, which includes the following steps: 1) Place the inner arc plate 210, the longitudinal ribs 2401, the side transverse ribs and the middle transverse ribs into a bending machine for bending; 2) After the bending is completed, the four longitudinal ribs 2401 are welded to the outer arc surface of the inner arc plate 210 in a longitudinal distribution, and then 12 side transverse ribs are selected, of which 6 side transverse ribs are welded to the front end of the outer side surface of the inner arc plate 210, and the other 6 side transverse ribs are welded to the rear end of the outer side surface of the inner arc plate 210, and all the 12 side transverse ribs are welded between two adjacent longitudinal ribs 2401 to form a segment adsorption connection assembly 20 with a reinforcement structure; 3) Drill a hole on the inner arc plate 210, avoid the longitudinal ribs 2401 and the transverse ribs 2402, insert the insert barrel 220 into the hole and weld it; 4) Three connecting pieces 230 are installed on the outer sides of the two longitudinal ribs 2401 close to the outer sides by pre-tightening with bolts, and three gaskets 250 are welded on the inner sides; 5) Fit the outer arc side of the inner arc plate 210 with the reinforcement structure to the shield tunnel steel pipe segment 10, so that the connector 230 and the gasket 250 are in contact with the shield tunnel steel pipe segment 10, and then weld them. After the welding is completed, tighten the bolts; 6) Use a negative pressure adsorption device to fit the inner arc surface of the inner arc plate 210, insert the insertion barrel 220 through the positioning structure on the negative pressure adsorption device, and then lift up the shield tunnel steel segment 10 with the segment adsorption connection assembly 20 installed for installation; 7) After the installation is completed, the pipe segment adsorption connection assembly 20 is dismantled. During the dismantling work, the gasket 250 is first cut and then the bolts are removed.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A convenient auxiliary device for assembling vacuum suction cups of shield tunnel steel pipe segments, characterized in that: include A shield tunnel steel pipe segment (10), wherein the shield tunnel steel pipe segment (10) is a fan-shaped structure; A pipe segment adsorption connection assembly (20), the pipe segment adsorption connection assembly (20) comprising an inner arc plate (210), an insert barrel (220) and a connection piece (230), the inner arc plate (210) being an arc-shaped structure, and the arc is adapted to a shield tunnel steel pipe segment (10), a reinforcement structure (240) is provided on the outer side surface of the inner arc plate (210), the insert barrel (220) is fixedly mounted on the inner arc plate (210), and the opening end of the insert barrel (220) faces the outer side of the inner arc plate (210), and the connection piece (230) is respectively connected to the reinforcement structure (240) and the shield tunnel steel pipe segment (10).

2. According to claim 1, a convenient auxiliary device for assembling vacuum suction cups of shield tunnel steel pipe segments is characterized by: The reinforcement structure (240) comprises a plurality of longitudinal ribs (2401) and a plurality of transverse ribs (2402), and the longitudinal ribs (2401) and the transverse ribs (2402) are arranged in a staggered manner, so that the reinforcement structure (240) as a whole presents a grid structure.

3. According to claim 2, a convenient auxiliary device for assembling vacuum suction cups of shield tunnel steel pipe segments is characterized by: The reinforcement structure (240) includes a left reinforcement area (241), a middle reinforcement area (242) and a right reinforcement area (243), wherein four longitudinal ribs (2401) are arranged in a longitudinal distribution, and six transverse ribs (2402) are arranged in a transverse distribution, wherein two transverse ribs (2402) are arranged at a left side of the inner arc plate (210) to form the left reinforcement area (241), wherein two transverse ribs (2402) are arranged at a middle part of the inner arc plate (210) to form the middle reinforcement area (242), and wherein two transverse ribs (2402) are arranged at a left side of the inner arc plate (210) to form the right reinforcement area (243).

4. The convenient auxiliary device for assembling vacuum suction cups of shield tunnel steel pipe segments according to claim 3 is characterized in that: The transverse ribs (2402) include 12 side transverse ribs and 6 middle transverse ribs, wherein the 6 side transverse ribs are arranged at the front end of the outer side surface of the inner arc plate (210), and the other 6 side transverse ribs are arranged at the rear end of the outer side surface of the inner arc plate (210), and the two ends of the side transverse ribs are respectively welded to the two longitudinal ribs (2401), and the 6 middle transverse ribs are arranged in the middle of the outer side surface of the inner arc plate (210), and the two ends of the middle transverse ribs are respectively welded to the two middle longitudinal ribs (2401).

5. According to claim 2, a convenient auxiliary device for assembling vacuum suction cups of shield tunnel steel pipe segments is characterized by: The connecting member (230) is a connecting side plate, wherein two longitudinal ribs (2401) are respectively arranged at two ends of a transverse rib (2402), and a plurality of connecting side plates are arranged on the outer side surfaces of the two longitudinal ribs (2401).

6. The convenient auxiliary device for assembling vacuum suction cups of shield tunnel steel pipe segments according to claim 5 is characterized in that: At least two mounting holes (2301) are provided on the connecting side plate, and the longitudinal ribs (2401) are connected to the mounting holes (2301) via bolts.

7. The convenient auxiliary device for assembling vacuum suction cups of shield tunnel steel pipe segments according to claim 1 is characterized in that: At least two of the insert barrels (220) are provided, and are axially symmetrically arranged on the inner arc plate (210).

8. The convenient auxiliary device for assembling vacuum suction cups of shield tunnel steel pipe segments according to claim 3 is characterized in that: A gasket (250) is provided on the side of the longitudinal rib (2401) away from the connecting side plate, the side edge of the gasket (250) is welded to the longitudinal rib (2401), and the outer side surface of the gasket (250) is welded to the shield tunnel steel pipe segment (10).

9. A method for constructing a shield tunnel steel segment, characterized in that: The shield tunnel steel pipe segment vacuum suction cup assembly convenient auxiliary device according to any one of claims 1 to 8 is implemented, comprising the following steps: 1) placing the inner arc plate (210), the longitudinal ribs (2401), the side transverse ribs and the middle transverse ribs into a bending machine for bending; 2) After the bending is completed, four longitudinal ribs (2401) are welded to the outer arc surface of the inner arc plate (210) in a longitudinal distribution, and then 12 side transverse ribs are selected, of which six side transverse ribs are welded to the front end of the outer side surface of the inner arc plate (210), and the other six side transverse ribs are welded to the rear end of the outer side surface of the inner arc plate (210), and all the twelve side transverse ribs are welded between two adjacent longitudinal ribs (2401), so as to form a segment adsorption connection assembly (20) with a reinforcement structure; 3) Drill a hole on the inner arc plate (210), avoid the longitudinal ribs (2401) and the transverse ribs (2402), insert the insert barrel (220) into the hole and weld it; 4) Install three connectors (230) on the outside of the two longitudinal ribs (2401) close to the outside by pre-tightening with bolts, and weld three gaskets (250) on the inside; 5) fitting the outer arc side of the inner arc plate (210) with the reinforcement structure to the shield tunnel steel pipe segment (10), so that the connecting piece (230) and the gasket (250) are in contact with the shield tunnel steel pipe segment (10), and then welding is performed. After the welding is completed, the bolts are tightened; 6) Using a negative pressure adsorption device to fit the inner arc surface of the inner arc plate (210), inserting the insertion barrel (220) through the positioning structure on the negative pressure adsorption device, and then lifting and installing the shield tunnel steel segment (10) equipped with the segment adsorption connection assembly (20); 7) After the installation is completed, the pipe segment adsorption connection assembly (20) is dismantled. During the dismantling work, the gasket (250) is first cut and then the bolts are removed.

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