Pipe-jacking construction pipeline reinforcing structure

Abstract

The utility model relates to the technical field of pipeline reinforcement, and provides a pipe-jacking construction pipeline reinforcement structure aiming at the problem that in the construction process of a traditional pipe-jacking pipeline, dislocation and cracking are likely to happen to the connecting position, the pipe-jacking construction pipeline reinforcement structure comprises an annular connecting steel belt and a connecting piece, and the annular connecting steel belt is pre-buried in the inner circumference of the pipe-jacking pipeline; the two ends of each connecting piece are fixedly connected to the annular connecting steel belts on the inner peripheries of the adjacent pipe jacking pipelines correspondingly. The pipe jacking pipeline reinforcing device has the effect of reinforcing and limiting the adjacent pipe jacking pipelines.

Description

Technical Field

[0001] This application relates to the field of pipeline reinforcement, and in particular to a pipeline reinforcement structure for pipe jacking construction. Background Technology

[0002] Pipe jacking, as a trenchless underground pipeline construction technology, has advantages such as eliminating the need for open-cut construction, minimizing impact on surface buildings, and reducing construction noise. It is widely applicable to urban pipeline laying projects.

[0003] In the relevant technology, the front and rear ends of the jacking pipe are respectively formed with a socket and a spigot. During construction, the front and rear pipes are connected by inserting and matching the sockets and spigots at the nearest ends to achieve the splicing of adjacent jacking pipes. Then, the jacking jacks push the spliced ​​pipe section into the soil layer.

[0004] Regarding the aforementioned technologies, currently adjacent jacking pipes are only connected by a socket at one of their closest ends, resulting in limited overall connection strength. In actual pipe jacking construction, uneven distribution of jacking torque or external loads can easily lead to misalignment and cracking at the connection point of adjacent jacking pipes, causing accidents such as water leakage. Therefore, there is room for improvement. Utility Model Content

[0005] In order to connect and reinforce adjacent pipe jacking pipelines and improve the connection integrity of adjacent pipe jacking pipelines, this application provides a pipe jacking construction pipeline reinforcement structure.

[0006] This application provides a pipeline reinforcement structure for pipe jacking construction, which adopts the following technical solution:

[0007] A pipe jacking construction pipeline reinforcement structure includes an annular connecting steel strip and connectors. The annular connecting steel strip is pre-embedded in the inner circumference of the jacking pipe, and the two ends of the connectors are respectively fixedly connected to the annular connecting steel strip in the inner circumference of adjacent jacking pipes.

[0008] By adopting the above technical solution, by pre-embedding annular connecting steel strips on the inner circumference of the jacking pipe, during the subsequent jacking construction process, after the adjacent jacking pipes are spliced, the two ends of the connector are respectively connected and fixed to the annular connecting steel strips of the adjacent jacking pipes. The connectors, together with the annular connecting steel strips, reinforce and limit the adjacent jacking pipes, which helps to improve the integrity and rigidity of the connection between adjacent jacking pipes and prevents cracking due to misalignment at the connection point of adjacent jacking pipes during construction.

[0009] Preferably, the connector includes reinforcing bars, and a plurality of reinforcing bars are provided, which are evenly distributed around the annular connecting steel strip; the two ends of the reinforcing bars are respectively welded and fixed to the annular connecting steel strip on the inner circumference of the adjacent jacking pipe.

[0010] By adopting the above technical solution, when reinforcing adjacent jacking pipes, the two ends of the reinforcing steel bars are welded to the annular connecting steel strips on the inner circumference of the adjacent jacking pipes in sequence. This can reinforce and limit the adjacent jacking pipes, which helps to prevent misalignment and cracking of adjacent jacking pipes due to uneven stress during the jacking construction process.

[0011] Preferably, the connector further includes a plurality of annular reinforcing ribs, which are connected and fixed to the plurality of reinforcing steel bars.

[0012] By adopting the above technical solution, the connection integrity of adjacent reinforcing bars is improved by using ring reinforcement, which helps to improve the overall structural strength of the reinforced structure and facilitates better reinforcement and restraint of adjacent jacking pipes.

[0013] Preferably, the connector includes reinforcing rods, and a plurality of reinforcing rods are provided, which are evenly distributed around the annular connecting steel strip; both ends of the reinforcing rods are connected to connecting ears by fasteners, and the connecting ears at both ends of the reinforcing rods are welded and fixed to the annular connecting steel strip of the adjacent jacking pipe.

[0014] By adopting the above technical solution, when reinforcing adjacent jacking pipes, the connecting lugs at both ends of the reinforcing rod are welded to the annular connecting steel strip on the inner circumference of the adjacent jacking pipes, thereby reinforcing and limiting the adjacent jacking pipes.

[0015] Preferably, the fastener includes two fastening nuts, both of which are threaded onto the outer periphery of the reinforcing rod, and the two fastening nuts are respectively pressed against the opposite sides of the corresponding connecting lug.

[0016] By adopting the above technical solution, the reinforcing rod and the connecting lug can be detachably connected. If the reinforcing rod is damaged during the subsequent operation of the jacking pipeline, the reinforcing rod can be disassembled and replaced.

[0017] Preferably, the connector includes a connecting steel pipe, with both ends of the connecting steel pipe respectively fitted onto the inner circumference of the annular connecting steel strip of the adjacent jacking pipe, and the ends of the connecting steel pipe being connected and fixed to the corresponding annular connecting steel strip.

[0018] By adopting the above technical solution, when reinforcing adjacent jacking pipes, the connecting steel pipe is moved into the jacking pipe, and both ends of the connecting steel pipe are respectively fitted into the annular connecting steel strip of the adjacent jacking pipe. Then, the two ends of the connecting steel pipe are respectively welded into the annular connecting steel strip on the inner circumference of the adjacent jacking pipe, which can reinforce and limit the adjacent jacking pipe.

[0019] Preferably, the annular connecting steel strip is welded and fixed to the inner circumference of the reinforcing cage inside the jacking pipe.

[0020] By adopting the above technical solution, it is beneficial to enhance the connection stability between the annular connecting steel strip and the jacking pipe, thereby improving the bonding strength between the reinforcement structure and the jacking pipe.

[0021] Preferably, both ends of the annular connecting steel strip are coaxially connected with water-stop wing rings.

[0022] By adopting the above technical solution, the waterproof performance of the connection between the annular connecting steel strip and the jacking pipe is improved by using the water-stop wing rings at both ends of the annular connecting steel strip. This limits the subsequent external moisture from entering the inner circumference of the jacking pipe through the gap between the annular connecting steel strip and the jacking pipe, thus preventing corrosion of the steel cage structure inside the jacking pipe.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By using pre-embedded annular connecting steel strips and connectors to reinforce and limit the adjacent jacking pipes, the connection strength of the adjacent jacking pipes is improved, and misalignment and cracking at the connection point are limited.

[0025] 2. By welding the annular connecting steel strip to the internal steel cage structure of the jacking pipe, it is beneficial to improve the integration of the reinforcement structure and the jacking pipe, and facilitate the reinforcement and limiting of adjacent jacking pipes through the reinforcement structure.

[0026] 3. By setting water-stop wing rings at both ends of the annular connecting steel strip, the waterproof performance at the connection between the annular connecting steel strip and the jacking pipe is improved. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the pipeline reinforcement structure used in Example 1 for pipe jacking construction.

[0028] Figure 2 yes Figure 1 Enlarged schematic diagram of part A in the middle.

[0029] Figure 3 This is a schematic diagram of the pipeline reinforcement structure used in Example 2 for pipe jacking construction.

[0030] Figure 4 yes Figure 1 Enlarged schematic diagram of section B.

[0031] Figure 5 This is a schematic diagram of the pipeline reinforcement structure used in Example 3 for pipe jacking construction.

[0032] Figure 6 This is an exploded schematic diagram of the jacking pipe and connecting steel pipe used in Example 3.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Pipe jacking; 10. Reinforcing cage; 11. Circular connecting steel strip; 12. Water-stop wing ring; 2. Reinforcing steel bar; 21. Connecting bar; 22. Circular reinforcing bar; 3. Reinforcing rod; 31. Connecting lug; 32. Fastening nut; 4. Connecting steel pipe. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0036] This application discloses a pipeline reinforcement structure for pipe jacking construction, referring to... Figure 1 and Figure 2 It includes an annular connecting steel strip 11 and a connector. The annular connecting steel strip 11 is pre-embedded and fixed in the inner circumference of the jacking pipe 1. The two ends of the connector are respectively fixedly connected to the annular connecting steel strip 11 in the inner circumference of the adjacent jacking pipe 1 to reinforce and limit the adjacent jacking pipe 1.

[0037] In this embodiment, the annular connecting steel strip 11 is made of high-strength steel, such as carbon steel or alloy steel. The outer periphery of the annular connecting steel strip 11 is welded and fixed to the outer periphery of the reinforcing cage 10 inside the jacking pipe 1. This improves the integration of the reinforcement structure and the jacking pipe, and allows subsequent loads acting on the annular connecting steel strip 11 to be promptly distributed to the reinforcing cage 10 structure inside the jacking pipe 1, reducing the concentration of external loads on the annular connecting steel strip 11 and preventing deformation and damage. The annular connecting steel strip 11 is coated with an anti-rust paint layer to limit corrosion and improve its durability.

[0038] Both ends of the annular connecting steel strip 11 are coaxially welded with water-stop wing rings 12. The water-stop wing rings 12 increase the path of external moisture entering the jacking pipe 1 through the connection between the annular connecting steel strip 11 and the jacking pipe, thereby limiting the direct entry of external moisture into the jacking pipe 1 through the connection between the annular connecting steel strip 11 and the jacking pipe to rust the reinforcing cage 10 of the jacking pipe 1.

[0039] The connector includes reinforcing steel bars 2, of which several are evenly distributed around annular connecting steel strips 11. Both ends of the reinforcing steel bars 2 are welded and fixed to the annular connecting steel strips 11 on the inner circumference of the adjacent jacking pipe 1 via connecting bars 21. Using the reinforcing steel bars 2 in conjunction with the annular connecting steel strips 11 at both ends to reinforce and limit the connection between adjacent jacking pipes 1 helps improve the connection strength between the two adjacent jacking pipes 1 and prevents them from cracking due to uneven stress or external loads during subsequent jacking.

[0040] The connector also includes several annular reinforcing ribs 22, which are evenly distributed along the length of the reinforcing steel bars 2. The outer periphery of each annular reinforcing rib 22 is welded and fixed to the reinforcing steel bars 2. After welding both ends of the reinforcing steel bars 2 to the corresponding annular connecting steel strips 11, the annular reinforcing ribs 22 are moved into the jacking pipe 1 and welded and fixed to the reinforcing steel bars 2. The annular reinforcing ribs 22 are used to connect and limit the adjacent reinforcing steel bars 2, which helps to improve the overall strength of the reinforcement structure and facilitates better connection and limitation of the reinforcement structure to the adjacent jacking pipe 1.

[0041] The implementation principle of Example 1 is as follows: During pipe jacking construction, after the two adjacent pipe jacking pipes 1 are spliced ​​together, several reinforcing steel bars 2 are moved into the pipe jacking pipe 1, and the two ends of the reinforcing steel bars 2 are welded and fixed to the annular connecting steel strips 11 in the two adjacent pipe jacking pipes 1 through connecting bars 21 respectively; then the outer periphery of the annular reinforcing bar 22 is welded and fixed to several reinforcing steel bars 2, and the reinforcing steel bars 2, together with the annular reinforcing bar 22 and the annular connecting reinforcing strips pre-embedded in the adjacent pipe jacking pipes 1, are used to reinforce and limit the two adjacent pipe jacking pipes 1.

[0042] Example 2

[0043] The difference between Example 2 and Example 1 is that: (Refer to...) Figure 3 and Figure 4 The connector includes reinforcing rods 3, which are made of alloy steel bars. Several reinforcing rods 3 are evenly distributed around the annular connecting steel strip 11. Both ends of the reinforcing rods 3 are connected to connecting ears 31 via fasteners. The connecting ears 31 at both ends of the reinforcing rods 3 are welded and fixed to the annular connecting steel strip 11 of the adjacent jacking pipe 1, thus using the reinforcing rods 3 in conjunction with the annular connecting steel strips 11 of two adjacent jacking pipes 1 to reinforce and limit the movement of the two adjacent jacking pipes 1.

[0044] Specifically, the end of the reinforcing rod 3 passes through the through hole in the connecting lug 31 and is inserted into the corresponding connecting lug 31; the fasteners include two fastening nuts 32; the end of the reinforcing rod 3 is threadedly connected to the two fastening nuts 32, and the two fastening nuts 32 are respectively pressed against the opposite sides of the connecting lug 31, realizing a detachable connection between the reinforcing rod 3 and the connecting lug 31. If the reinforcing rod 3 is damaged in the future, the fastening nuts 32 can be removed to facilitate the disassembly and replacement of the reinforcing rod 3.

[0045] The implementation principle of Example 2 is as follows: During pipe jacking construction, after the two adjacent pipe jacking pipes 1 are spliced ​​together, several reinforcing rods 3 are moved into the pipe jacking pipe 1, and the connecting lugs 31 at both ends of the reinforcing rods 3 are welded and fixed to the annular connecting steel strips 11 in the two adjacent pipe jacking pipes 1.

[0046] Example 3

[0047] The difference between Example 3 and Example 1 is that: (Refer to...) Figure 5 and Figure 6 The connector includes a connecting steel pipe 4, with both ends of the connecting steel pipe 4 respectively fitted onto the annular connecting steel strips 11 of two adjacent jacking pipes 1; a number of connecting bolts are evenly arranged on the outer circumference of the ends of the connecting steel pipe 4, and through holes are opened on the outer circumference of the connecting steel pipe 4 corresponding to the connecting bolts. The connecting bolts pass through the through holes and are threaded to the inner circumference of the corresponding annular connecting steel strips 11, so as to fix both ends of the connecting steel pipe 4 onto the two adjacent annular connecting steel strips 11 respectively.

[0048] The principle of Example 3 is as follows: During pipe jacking construction, after the two adjacent pipe jacking pipes 1 are spliced ​​together, the connecting steel pipe 4 is moved into the pipe jacking pipe 1. After drilling threaded holes in the annular connecting steel strip 11 through the perforation on the connecting steel pipe 4, the connecting bolt is inserted into the connecting steel pipe 4 through the perforation and then threaded onto the corresponding threaded hole of the annular connecting steel strip 11.

[0049] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pipe jacking pipe reinforcing structure, characterized by: It includes an annular connecting steel strip (11) and a connector. The annular connecting steel strip (11) is pre-embedded in the inner circumference of the jacking pipe (1). The two ends of the connector are respectively fixedly connected to the annular connecting steel strip (11) in the inner circumference of the adjacent jacking pipe (1).

2. A pipe jacking pipe reinforcing structure according to claim 1, characterized in that: The connector includes reinforcing bars (2), and a plurality of reinforcing bars (2) are provided, and the plurality of reinforcing bars (2) are evenly distributed around the annular connecting steel strip (11); the two ends of the reinforcing bars (2) are respectively welded and fixed to the annular connecting steel strip (11) on the inner circumference of the adjacent jacking pipe (1).

3. A pipe jacking pipe reinforcing structure according to claim 2, characterized in that: The connector also includes several annular reinforcing ribs (22), which are connected and fixed to several reinforcing steel bars (2).

4. A pipe jacking pipe reinforcing structure according to claim 1, characterized in that: The connector includes a reinforcing rod (3), and a plurality of the reinforcing rods (3) are provided, and the plurality of the reinforcing rods (3) are evenly distributed around the annular connecting steel strip (11); both ends of the reinforcing rod (3) are connected to connecting ears (31) by fasteners, and the connecting ears (31) at both ends of the reinforcing rod (3) are welded and fixed to the annular connecting steel strip (11) of the adjacent jacking pipe (1).

5. A pipe jacking conduit reinforcing structure according to claim 4, wherein: The fastener includes two fastening nuts (32), both of which are threaded onto the outer periphery of the reinforcing rod (3), and the two fastening nuts (32) are respectively pressed against the opposite sides of the corresponding connecting lug (31).

6. A pipe jacking pipe reinforcing structure according to claim 1, characterized in that: The connector includes a connecting steel pipe (4), with both ends of the connecting steel pipe (4) respectively fitted inside the annular connecting steel strip (11) of the adjacent jacking pipe (1), and the end of the connecting steel pipe (4) is connected and fixed to the corresponding annular connecting steel strip (11).

7. A pipe jacking pipe reinforcing structure according to any one of claims 1 to 6, characterized in that: The annular connecting steel strip (11) is welded and fixed to the internal steel reinforcement cage (10) of the jacking pipe (1).

8. A pipe jacking pipe reinforcing structure according to claim 7, characterized in that: Both ends of the annular connecting steel strip (11) are coaxially connected to water-stop wing rings (12).

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