Lining reinforcing structure suitable for in-situ repair of pipeline

Abstract

The utility model relates to the technical field of pipeline repair, and discloses a lining reinforcing structure suitable for in-situ repair of a pipeline, which comprises a concrete pipeline, a hot rolling seamless steel pipe is arranged in the concrete pipeline, a channel steel guide rail is fixed at the bottom end of the concrete pipeline, and a lining steel pipe is mounted on the outer side wall of the channel steel guide rail. And non-shrinkage cement mortar is filled between the concrete pipeline and the lining steel pipe. The channel steel is used as guide rail equipment, so that the accuracy of the mounting position of the lining steel pipe can be ensured, a reliable positioning and mounting channel can be provided, and the construction is greatly facilitated; the gap between the lining steel pipe and the current pipeline is filled and compacted through the preset grouting guide pipe, so that the safety and durability of the reinforced pipeline are further guaranteed, and the design and construction problems of positioning and combination of the lining steel pipe and the current pipeline are successfully solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline repair, in particular to an inner lining reinforcement structure suitable for in-situ repair of pipelines. Background Art

[0002] With the rapid expansion of my country's urban scale, the construction and operation scale of municipal pipeline networks have expanded rapidly. A large number of underground pipeline systems have reached their design service life, and a large number of pipelines have developed various defects such as cracking, subsidence, and collapse. In order to ensure the normal operation of municipal roads, existing pipelines should be repaired in situ as much as possible.

[0003] In the current conventional design, the in-situ pipeline repair methods include the interlacing method, in-situ curing method, spiral winding method, lining method, and fractured pipe method. Based on the lining method, a new lining reinforcement method is proposed and optimized. It is a pipeline reinforcement method suitable for existing pipelines after structural diseases occur. Utility Model Content

[0004] The purpose of the utility model is to provide a lining reinforcement structure suitable for in-situ repair of pipelines, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lining reinforcement structure suitable for in-situ repair of pipelines, comprising a concrete pipe, a hot-rolled seamless steel pipe is arranged inside the concrete pipe, a channel steel guide rail is fixed to the bottom end of the concrete pipe, a lining steel pipe is installed on the outer side wall of the channel steel guide rail, and non-shrinkage cement mortar is filled between the concrete pipe and the lining steel pipe.

[0006] Preferably, a plurality of the hot-rolled seamless steel pipes are provided, and the plurality of the hot-rolled seamless steel pipes are distributed in a ring shape inside the concrete pipe.

[0007] Preferably, three groups of the channel steel guide rails are provided, and the three groups of the channel steel guide rails are evenly spaced within a range of 120° at the bottom of the concrete pipe.

[0008] Preferably, a reinforcement ring piece is welded and fixed to the inner side wall of the lining steel pipe, and a reinforcing rod body is welded and fixed to the inner side wall of the reinforcement ring piece.

[0009] Preferably, three groups of the reinforcement ring plates are provided, and the three groups of the reinforcement ring plates are distributed at equal intervals on the inner wall of the lined steel pipe.

[0010] Preferably, a hole is provided inside the concrete pipe, a positioning groove is provided inside the lined steel pipe, and positioning rods are provided inside both the hole and the positioning groove.

[0011] Preferably, two groups of positioning rods are provided, and the two groups of positioning rods are symmetrically distributed about the central axis of the concrete pipe.

[0012] Preferably, the cross section of the positioning rod is smaller than the cross section of the positioning slot body, and a snap-fit ​​structure is formed between the positioning rod and the positioning slot body.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the lining reinforcement structure suitable for in-situ pipeline repair not only facilitates pipeline reinforcement and repair, achieves better pipeline repair and reinforcement effect, but also realizes the positioning of the lining steel pipe to ensure the accuracy of repairing the corresponding position of the pipeline;

[0014] (1) Using channel steel as the guide rail equipment can not only ensure the accurate installation position of the lining steel pipe, but also provide a reliable positioning and installation channel, which greatly facilitates the construction. By using the preset grouting conduit to fill the gap between the lining steel pipe and the existing pipeline, the safety and durability of the reinforced pipeline are further guaranteed, and the design and construction problems of positioning and combining the lining steel pipe with the existing pipeline are successfully solved;

[0015] (2) By providing a reinforcing rod body and a reinforcing ring sheet, the reinforcing rod body is arranged inside the lining steel pipe and supports the lining steel pipe together with the reinforcing ring sheet, so that the structural strength of the lining steel pipe is better, and the lining steel pipe is not easy to deform and generate gaps between the concrete pipe as the service time increases, so that the reinforcement structure has a better repair effect on the pipe;

[0016] (3) By providing components such as a hole body, a positioning rod and a positioning groove body, after the lining steel pipe is installed to the corresponding position inside the concrete pipe through the channel steel guide rail, the positioning rod can pass through the hole body inside the concrete pipe and then be inserted into the positioning groove body inside the lining steel pipe. The lining steel pipe is limited to the position that needs to be repaired inside the concrete pipe through the engagement of the positioning rod and the positioning groove body, thereby avoiding the phenomenon of displacement caused by the repair, making the reinforcement structure more accurate in repairing the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0018] Figure 2 It is a side view structural schematic diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the front cross-sectional structure of the reinforcement ring piece of the utility model;

[0020] Figure 4 For the utility model Figure 2 Schematic diagram of the enlarged cross-section structure at point A in the middle.

[0021] In the figure: 1. hot-rolled seamless steel pipe; 2. concrete pipe; 3. non-shrinkage cement mortar; 4. lining steel pipe; 5. channel steel guide rail; 6. reinforcing rod; 7. reinforcing ring; 8. hole; 9. positioning rod; 10. positioning slot. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1: Please refer to Figure 1-4 A lining reinforcement structure suitable for in-situ repair of pipelines, comprising a concrete pipeline 2, a hot-rolled seamless steel pipe 1 is arranged inside the concrete pipeline 2, a channel steel guide rail 5 is fixed to the bottom end of the concrete pipeline 2, a lining steel pipe 4 is installed on the outer wall of the channel steel guide rail 5, non-shrinkage cement mortar 3 is filled between the concrete pipeline 2 and the lining steel pipe 4, a plurality of hot-rolled seamless steel pipes 1 are arranged, and the plurality of hot-rolled seamless steel pipes 1 are distributed in a ring shape inside the concrete pipeline 2, three groups of channel steel guide rails 5 are arranged, and the three groups of channel steel guide rails 5 are evenly spaced and distributed within a range of 120° at the bottom of the concrete pipeline 2;

[0024] Specifically, if Figure 1 and Figure 2 As shown, three channel steel rails 5 are set within 120° of the bottom of the concrete pipe 2 and 5 cm breaks are set every 50 cm. The concrete pipe 2 is cleaned and coated with an interface agent. The lining steel pipe 4 is made and rust removal and anti-corrosion work are completed. The lining steel pipe 4 is installed on the channel steel rails 5 and installed in place by pushing and pulling.

[0025] Embodiment 2: A reinforcing ring piece 7 is welded and fixed to the inner wall of the lining steel pipe 4, and a reinforcing rod 6 is welded and fixed to the inner wall of the reinforcing ring piece 7. Three groups of reinforcing ring pieces 7 are provided, and the three groups of reinforcing ring pieces 7 are evenly spaced and distributed on the inner wall of the lining steel pipe 4, which has a better reinforcing effect on the lining steel pipe 4;

[0026] Specifically, if Figure 2 and Figure 3 As shown, when the lining steel pipe 4 is installed inside the concrete pipe 2 to reinforce the concrete pipe 2, three sets of reinforcing ring plates 7 and reinforcing rods 6 are added inside the lining steel pipe 4, so that the structural strength of the lining steel pipe 4 is stronger, the lining steel pipe 4 is not easy to deform, and the reinforcement effect on the concrete pipe 2 is better.

[0027] Embodiment 3: A hole body 8 is provided inside the concrete pipe 2, a positioning groove body 10 is provided inside the lining steel pipe 4, and positioning rods 9 are provided inside the hole body 8 and the positioning groove body 10. Two groups of positioning rods 9 are provided, and the two groups of positioning rods 9 are symmetrically distributed about the central axis of the concrete pipe 2. The cross section of the positioning rod 9 is smaller than the cross section of the positioning groove body 10. A snap-fit ​​structure is formed between the positioning rod 9 and the positioning groove body 10. The design of the symmetrically distributed positioning rods 9 and the snap-fit ​​structure makes the positioning rod 9 have a better positioning effect on the lining steel pipe 4;

[0028] Specifically, if Figure 2 and Figure 4 As shown, when the lining steel pipe 4 enters the corresponding position that needs to be repaired inside the concrete pipe 2 through the channel steel guide rail 5, the positioning rod 9 can be taken out and inserted into the positioning groove 10 inside the lining steel pipe 4 through the hole 8 inside the concrete pipe 2 to position the lining steel pipe 4, so that the lining steel pipe 4 can accurately repair the position that needs to be repaired in the concrete pipe 2, and then reliable measures are taken to close the hole 8.

[0029] Working principle: When the utility model is used, the existing pipeline structure and foundation are first comprehensively inspected, and a Φ48 hot-rolled seamless steel pipe 1 grouting pipe is evenly arranged in the circumferential direction at the pipeline joint. The grouting material adopts cement-water glass double liquid slurry, PO42.5 ordinary Portland cement is used, the volume ratio is 1:1, the cement slurry water-cement ratio is 1:1, the water glass modulus is 2.4~3.4, the concentration is 30~45Be, the slurry initial setting time is 60~180s, the final setting time is 1~2h, and the grouting pressure is 0.5~0.8MPa. Before grouting, a field test should be carried out to determine the final grouting parameters. After the grouting is completed, reliable measures should be taken to close the Φ48 hot-rolled seamless steel pipe 1 grouting pipe. After the pipeline foundation reinforcement test is qualified, three channel steel guide rails 5 are set within 120° at the bottom of the concrete pipe 2 and 5cm fractures are set every 50cm. The concrete pipe 2 is cleaned and coated with an interface agent, and the lining steel pipe 4 is made and rust removal and anti-corrosion work is completed. The lining steel pipe 4 is installed on the channel steel guide rail 5 and installed in place by pushing and pulling. Then, the positioning rod 9 is taken out and inserted into the positioning groove 10 inside the lining steel pipe 4 through the hole 8 inside the concrete pipe 2 to position the lining steel pipe 4. M10 non-shrinkage cement mortar 3 is filled between the concrete pipe 2 and the lining steel pipe 4. Finally, a water-tightness test is carried out and acceptance is carried out.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A lining reinforcement structure suitable for in-situ repair of a pipeline, comprising a concrete pipeline (2), characterized in that: A hot-rolled seamless steel pipe (1) is arranged inside the concrete pipe (2), a channel steel guide rail (5) is fixed to the bottom end of the concrete pipe (2), an inner lining steel pipe (4) is installed on the outer side wall of the channel steel guide rail (5), and non-shrinkage cement mortar (3) is filled between the concrete pipe (2) and the inner lining steel pipe (4).

2. The lining reinforcement structure suitable for in-situ repair of pipelines according to claim 1, characterized in that: A plurality of the hot-rolled seamless steel pipes (1) are provided, and the plurality of the hot-rolled seamless steel pipes (1) are distributed in a ring shape inside the concrete pipe (2).

3. The lining reinforcement structure suitable for in-situ pipeline repair according to claim 1, characterized in that: Three groups of the channel steel guide rails (5) are provided, and the three groups of the channel steel guide rails (5) are distributed at equal intervals within a range of 120° at the bottom of the concrete pipe (2).

4. The lining reinforcement structure suitable for in-situ repair of pipelines according to claim 1, characterized in that: A reinforcing ring piece (7) is welded and fixed to the inner side wall of the inner lining steel pipe (4), and a reinforcing rod body (6) is welded and fixed to the inner side wall of the reinforcing ring piece (7).

5. The lining reinforcement structure suitable for in-situ repair of pipelines according to claim 4, characterized in that: The reinforcement ring pieces (7) are provided in three groups, and the three groups of reinforcement ring pieces (7) are distributed at equal intervals on the inner side wall of the lining steel pipe (4).

6. The lining reinforcement structure suitable for in-situ repair of pipelines according to claim 1, characterized in that: The concrete pipe (2) is provided with a hole body (8) inside, the inner lining steel pipe (4) is provided with a positioning groove body (10) inside, and positioning rods (9) are provided inside both the hole body (8) and the positioning groove body (10).

7. The lining reinforcement structure suitable for in-situ repair of pipelines according to claim 6, characterized in that: Two groups of positioning rods (9) are provided, and the two groups of positioning rods (9) are symmetrically distributed about the central axis of the concrete pipe (2).

8. The lining reinforcement structure suitable for in-situ repair of pipelines according to claim 6, characterized in that: The cross section of the positioning rod (9) is smaller than the cross section of the positioning slot body (10), and a snap-fit ​​structure is formed between the positioning rod (9) and the positioning slot body (10).

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