Water supply pipeline repairing and reinforcing structure and combined pipeline

Abstract

The invention discloses a water supply pipeline repairing and reinforcing structure, and relates to the technical field of water supply pipeline repairing, the water supply pipeline repairing and reinforcing structure comprises a combined lining, anchoring parts and embedded steel bars, the combined lining comprises a lining layer and a filling material layer, the lining layer is arranged on the inner side of an existing water supply pipeline, a cavity is formed between the lining layer and the existing water supply pipeline, and the filling material layer is arranged in the cavity; the anchoring part sequentially penetrates through the lining layer and the filling material layer and extends into the existing water supply pipeline to achieve anchoring of the lining layer and the filling material layer, and the embedded steel bars are used for reinforcing connection of the filling material layer and the existing water supply pipeline. The invention further discloses a combined pipeline which comprises the existing water supply pipeline and the water supply pipeline repairing and reinforcing structure. Trenchless repair of the existing water supply pipeline is achieved, the overall negative pressure resistance and the internal and external water pressure resistance of the existing water supply pipeline are remarkably improved, the construction efficiency can be remarkably improved, the construction period is effectively shortened, and the problem that bonding between the filling material layer and an original concrete interface of the existing water supply pipeline is weak is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline repair, and in particular to a water supply pipeline repair reinforcement structure and a combined pipeline. Background Art

[0002] With the deepening of urbanization and the rapid growth of population, the maintenance and renewal of water supply and drainage systems are becoming more and more important. Among them, water supply pipelines are important water supply facilities in urban life, and the importance of their maintenance and repair work is becoming more and more prominent.

[0003] At present, water supply pipelines are mostly made of reinforced concrete structures. Due to improper design, construction and use management, material quality does not meet the requirements, damage caused by disasters and insufficient durability, water supply pipelines need to be repaired and reinforced. Conventional water supply pipeline repair methods usually involve digging up the pipeline for maintenance. However, digging up the pipeline usually causes urban road traffic congestion, damages underground facilities, and affects residents' daily lives.

[0004] Therefore, a trenchless repair technology is provided to repair the water supply pipeline. Summary of the invention

[0005] The purpose of the present invention is to provide a water supply pipe repair and reinforcement structure and a combined pipe to solve the problems existing in the above-mentioned prior art, to realize non-excavation repair of existing water supply pipes, to significantly improve the overall ability of existing water supply pipes to resist negative pressure and internal and external water pressures, to significantly improve construction efficiency, to effectively save construction period, and to solve the problem of weak bonding between the filling material layer and the original concrete interface of the existing water supply pipe.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] The present invention provides a water supply pipe repair and reinforcement structure, including a combined lining, an anchor and embedded steel bars, the combined lining including an inner lining layer and a filling material layer, the inner lining layer is used to be arranged on the inner side of an existing water supply pipe, and a gap is provided between the outer wall of the inner lining layer and the inner wall of the existing water supply pipe to form a chamber, and the filling material layer is arranged in the chamber; the anchor passes through the inner lining layer and the filling material layer in sequence, and extends into the existing water supply pipe to realize the anchoring of the inner lining layer and the filling material layer; one end of the embedded steel bar extends into the existing water supply pipe, and the other end extends into the filling material layer to reinforce the connection between the filling material layer and the existing water supply pipe.

[0008] Preferably, the lining layer includes a plurality of arc-shaped lining plates, which are connected in sequence along the circumference of the existing water supply pipe to form a ring-shaped lining layer; wherein both ends of any one of the arc-shaped lining plates are connected to the existing water supply pipe through anchors.

[0009] Preferably, adjacent arc-shaped lining plates are also connected by welding via arc-shaped connecting plates.

[0010] Preferably, the arc-shaped lining plate and the arc-shaped connecting plate are steel plates, stainless steel plates or stainless steel composite plates.

[0011] Preferably, the anchoring member is a chemical anchor bolt, and a plurality of the chemical anchor bolts are evenly distributed along the axial direction of the existing water supply pipe at both ends of any one of the arc-shaped inner lining plates.

[0012] Preferably, the inner lining layer is a UHPC-wire mesh composite plate.

[0013] Preferably, the filling material layer is formed by pouring concrete, grouting material or epoxy mortar.

[0014] Preferably, the embedded reinforcement is L-shaped embedded reinforcement, I-shaped embedded reinforcement or U-shaped embedded reinforcement, and the embedded reinforcement avoids the longitudinal reinforcement and the circumferential reinforcement of the existing water supply pipeline;

[0015] The embedded steel bars are evenly distributed in a plurality of circles along the axial direction of the existing water supply pipe, and any circle of the embedded steel bars is evenly distributed in a plurality of circles along the circumferential direction of the existing water supply pipe.

[0016] Preferably, it further comprises a bolt connector, which is welded to the outer wall of the inner lining layer and extends into the filling material layer to connect the inner lining layer and the filling material layer;

[0017] The bolt connectors are evenly distributed in a plurality of circles along the axial direction of the inner lining layer, and any circle of the bolt connectors is evenly distributed in a plurality of circles along the circumferential direction of the inner lining layer.

[0018] Preferably, the anchoring piece, the implanted bar and the bolt connector are staggered and located in different planes.

[0019] The present invention also provides a combined pipeline, comprising an existing water supply pipeline and the water supply pipeline repair and reinforcement structure as described above.

[0020] Compared with the prior art, the present invention has achieved the following technical effects:

[0021] The present invention arranges a combined lining on the inner side of the existing water supply pipe for repair and reinforcement, thereby realizing trenchless repair; and the lining layer is arranged on the inner side of the existing water supply pipe, serving as a load-bearing element and a casting template, thereby significantly improving construction efficiency and effectively saving construction period; and the repair and reinforcement structure based on the combined lining has excellent load-bearing performance, thereby significantly improving the overall ability of the water supply pipe to resist negative pressure and internal and external water pressure, and increasing the overall stiffness of the water supply pipe; and the arrangement of embedded reinforcement can also strengthen the connection between the existing water supply pipe and the filling material layer, thereby effectively solving the problem of weak bonding between the filling material layer and the original concrete interface of the existing water supply pipe.

[0022] The present invention adopts the above-mentioned repair and reinforcement structure to repair and reinforce the existing water supply pipeline, and the formed combined pipeline has excellent overall performance, prolongs the service life of the existing water supply pipeline, and has good economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is an overall schematic diagram of the water supply pipeline repair and reinforcement structure in an embodiment of the present invention;

[0025] Figure 2 It is a cross-sectional schematic diagram of a water supply pipeline repair and reinforcement structure according to an embodiment of the present invention;

[0026] Figure 3 Schematic diagram of the splicing of the inner lining layer in an embodiment of the present invention.

[0027] In the figure: 1-existing water supply pipe; 2-combined lining; 3-lining layer; 4-filling material layer; 5-anchor; 6-embedded reinforcement; 7-arc lining plate; 8-arc connecting plate; 9-bolt connector. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] The purpose of the present invention is to provide a water supply pipe repair and reinforcement structure and a combined pipe to solve the problems existing in the above-mentioned prior art, to realize non-excavation repair of existing water supply pipes, to significantly improve the overall ability of existing water supply pipes to resist negative pressure and internal and external water pressures, to significantly improve construction efficiency, to effectively save construction period, and to solve the problem of weak bonding between the filling material layer and the original concrete interface of the existing water supply pipe.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Embodiment 1

[0032] like Figure 1-Figure 3 As shown, this embodiment provides a water supply pipe repair and reinforcement structure, including a combined lining 2, an anchor 5 and an embedded bar 6, the combined lining 2 includes a lining layer 3 and a filling material layer 4, the lining layer 3 is used to be arranged on the inner side of an existing water supply pipe 1, and there is a gap between the outer wall of the lining layer 3 and the inner wall of the existing water supply pipe 1 to form a chamber, and the filling material layer 4 is arranged in the chamber; the anchor 5 passes through the lining layer 3 and the filling material layer 4 in sequence, and extends into the existing water supply pipe 1 to achieve anchoring of the lining layer 3 and the filling material layer 4; one end of the embedded bar 6 extends into the existing water supply pipe 1, and the other end extends into the filling material layer 4 to reinforce the connection between the filling material layer 4 and the existing water supply pipe 1.

[0033] In this embodiment, a combined lining 2 is arranged on the inner side of the existing water supply pipe 1 for repair and reinforcement, so as to realize trenchless repair; and the lining layer 3 is arranged on the inner side of the existing water supply pipe 1, serving as a load-bearing element and a casting template, which significantly improves the construction efficiency and effectively saves the construction period; and based on the superior load-bearing performance of the repair and reinforcement structure of the combined lining 2, the overall ability of the water supply pipe to resist negative pressure and internal and external water pressure is significantly improved, and the overall stiffness of the water supply pipe is increased, and the arrangement of embedded reinforcement 6 can strengthen the connection between the existing water supply pipe 1 and the filling material layer 4, and effectively solve the problem of weak bonding between the filling material layer 4 and the original concrete interface of the existing water supply pipe 1.

[0034] In this embodiment, the above-mentioned repair and reinforcement structure is used to repair and reinforce the existing water supply pipe 1. The formed combined pipe has excellent overall performance, extends the service life of the existing water supply pipe 1, and has good economic benefits.

[0035] In this embodiment, the filling material layer 4 can be formed by pouring concrete, grouting material or epoxy mortar.

[0036] In this embodiment, the inner lining layer 3 includes a plurality of arc-shaped inner lining plates 7, and the plurality of arc-shaped inner lining plates 7 are connected in sequence along the circumference of the existing water supply pipe 1 to form a ring-shaped inner lining layer 3; wherein, both ends of any arc-shaped inner lining plate 7 are connected to the existing water supply pipe 1 through anchors 5, and adjacent arc-shaped inner lining plates 7 are also welded and connected through arc-shaped connecting plates 8.

[0037] In this embodiment, the arc-shaped lining plate 7 is processed in the factory, transported to the site and welded with the arc-shaped connecting plate 8 to form a casting template, and then the filling material layer 4 is cast, which is simple to construct and highly efficient.

[0038] In this embodiment, the arc-shaped lining plate 7 and the arc-shaped connecting plate 8 are preferably steel plates, stainless steel plates or stainless steel composite plates.

[0039] In this embodiment, the anchor 5 is preferably a chemical anchor, and both ends of any one of the arc-shaped lining plates 7 are evenly distributed with a plurality of the chemical anchors along the axial direction of the existing water supply pipe 1, that is, the plurality of chemical anchors are arranged at equal intervals along the axial direction to ensure the anchoring strength.

[0040] Furthermore, it should be noted that the lining layer 3 in this embodiment is not limited to the above-mentioned steel lining, and lining layers 3 of other materials can also be selected according to work needs. For example, the lining layer 3 can also be made of UHPC-steel mesh composite plate.

[0041] In this embodiment, the anchor bar 6 is preferably an L-shaped anchor bar, an I-shaped anchor bar or a U-shaped anchor bar. Figure 2 For example, the embedded rebar 6 is an L-shaped embedded rebar, the corner of which is located in the filling material layer 4, and the long side extends into the existing water supply pipe 1; wherein the embedded rebar 6 avoids the longitudinal reinforcement and the annular reinforcement of the existing water supply pipe 1 to avoid mutual influence; moreover, the embedded rebar 6 is evenly distributed in multiple circles along the axial direction of the existing water supply pipe 1, and any circle of the embedded rebar 6 is evenly distributed in multiple circles along the circumferential direction of the existing water supply pipe 1, that is, all the embedded rebars 6 are arranged at equal intervals along the circumferential and axial directions on the inner surface of the existing water supply pipe 1, and extend into the filling material layer 4 to ensure the connection strength.

[0042] In this embodiment, it also includes a bolt connector 9, which is welded on the outer wall of the inner lining layer 3 and extends into the filling material layer 4 to connect the inner lining layer 3 and the filling material layer 4, and the bolt connector 9 enhances the combined effect between the inner lining layer 3 and the filling material layer 4; wherein, the bolt connector 9 has multiple circles evenly distributed along the axial direction of the inner lining layer 3, and any circle of the bolt connector 9 has multiple circles evenly distributed along the circumferential direction of the inner lining layer 3, that is, all the bolt connectors 9 are welded to the outer surface of the inner lining layer 3 at equal intervals along the circumferential and axial directions to ensure the connection strength between the inner lining layer 3 and the filling material layer 4.

[0043] In this embodiment, the anchoring piece 5, the implanted bar 6 and the bolt connector 9 are all staggered and not in the same plane to avoid mutual influence.

[0044] This embodiment also provides a combined pipeline, including an existing water supply pipeline 1 and the water supply pipeline repair and reinforcement structure as described above.

[0045] In summary, the present invention adopts a combined lining 2 to repair the existing water supply pipe 1, which significantly improves the overall ability of the water supply pipe to resist negative pressure and internal and external water pressure, and increases the overall stiffness of the water supply pipe; the use of embedded reinforcement 6 can strengthen the connection between the existing water supply pipe 1 and the filling material layer 4, and effectively solve the problem of weak bonding between the filling material layer 4 and the original concrete interface of the existing water supply pipe 1; and the lining layer 3 also serves as a force-bearing element and a casting template, which significantly improves construction efficiency, effectively saves construction period, and extends the service life of the pipeline structure, and has broad engineering application prospects.

[0046] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A water supply pipeline repair and reinforcement structure, characterized in that: It includes a combined lining, anchors and embedded steel bars, the combined lining includes a lining layer and a filling material layer, the lining layer is used to be arranged on the inner side of an existing water supply pipe, and there is a gap between the outer wall of the lining layer and the inner wall of the existing water supply pipe to form a chamber, and the filling material layer is arranged in the chamber; the anchor passes through the lining layer and the filling material layer in sequence, and extends into the existing water supply pipe to achieve anchoring of the lining layer and the filling material layer; one end of the embedded steel bar extends into the existing water supply pipe, and the other end extends into the filling material layer to reinforce the connection between the filling material layer and the existing water supply pipe.

2. The water supply pipeline repair and reinforcement structure according to claim 1 is characterized in that: The inner lining layer includes a plurality of arc-shaped inner lining plates, which are sequentially connected along the circumference of the existing water supply pipe to form an annular inner lining layer; wherein both ends of any one of the arc-shaped inner lining plates are connected to the existing water supply pipe via anchors.

3. The water supply pipeline repair and reinforcement structure according to claim 2 is characterized in that: Adjacent arc-shaped lining plates are also connected by welding via arc-shaped connecting plates.

4. The water supply pipeline repair and reinforcement structure according to claim 3 is characterized in that: The arc-shaped lining plate and the arc-shaped connecting plate are steel plates, stainless steel plates or stainless steel composite plates.

5. The water supply pipeline repair and reinforcement structure according to claim 2 is characterized in that: The anchoring piece is a chemical anchor bolt, and a plurality of the chemical anchor bolts are evenly distributed along the axial direction of the existing water supply pipeline at both ends of any arc-shaped lining plate.

6. The water supply pipeline repair and reinforcement structure according to claim 1 is characterized in that: The inner lining layer is a UHPC-steel wire mesh composite plate.

7. The water supply pipeline repair and reinforcement structure according to claim 1 is characterized in that: The filling material layer is formed by pouring concrete, grouting material or epoxy mortar.

8. The water supply pipeline repair and reinforcement structure according to claim 1 is characterized in that: The embedded reinforcement is L-shaped embedded reinforcement, I-shaped embedded reinforcement or U-shaped embedded reinforcement, and the embedded reinforcement avoids the longitudinal reinforcement and the circumferential reinforcement of the existing water supply pipeline; The embedded steel bars are evenly distributed in a plurality of circles along the axial direction of the existing water supply pipe, and any circle of the embedded steel bars is evenly distributed in a plurality of circles along the circumferential direction of the existing water supply pipe.

9. The water supply pipeline repair and reinforcement structure according to claim 1 is characterized in that: It also includes a bolt connector, which is welded to the outer wall of the inner lining layer and extends into the filling material layer to connect the inner lining layer and the filling material layer; The bolt connectors are evenly distributed in a plurality of circles along the axial direction of the inner lining layer, and any circle of the bolt connectors is evenly distributed in a plurality of circles along the circumferential direction of the inner lining layer; The anchoring piece, the implanted bar and the bolt connector are all staggered and located in different planes.

10. A combined pipeline, characterized in that: It comprises an existing water supply pipeline and a water supply pipeline repair and reinforcement structure as described in any one of claims 1 to 9.

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