Pipeline repairing device
By combining grouting structures and precast segment structures, the problem of siltation when large-section pipelines are severely damaged is solved, achieving a safe and efficient repair effect and meeting the stress requirements of large-diameter pipelines.
Patent Information
- Application Number
- CN202520551157.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-03-26
AI Technical Summary
When large-section pipelines are severely damaged, a large amount of silt is generated inside the pipeline. Existing trenchless repair technologies cannot effectively repair the pipeline and cannot guarantee the safety of construction personnel.
The system employs a grouting structure and a precast segment structure. The grouting structure is located on the outside of the pipe, while the precast segment structure is located on the inner wall of the pipe. It includes multiple grouting pipes and upper and lower inner lining segments, which are connected by snap-fit to form a closed structure. Combined with the reinforced soil layer and steel segments, it can withstand water and soil pressure and internal water pressure.
It improves the load-bearing capacity of large-section pipelines, ensures construction safety, meets the stress requirements of large-diameter pipelines, ensures the safety of construction personnel, and enables effective pipeline repair.
Smart Images
Figure CN223709014U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to pipeline trenchless repair technical field, especially pipeline repair device. BACKGROUND
[0002] At present, pipeline trenchless repair technology mainly adopts pipe lining method, and the main material used is PVC pipe and grouting material, the pipe is connected and assembled in the pipe by using the connecting piece, then the grouting material is filled between the original pipeline and the assembled lining pipe, so that the new lining pipe and the original pipeline are integrated, and the purpose of repairing the damaged pipeline is achieved.
[0003] When the damaged pipeline to be repaired is large in section (the inner diameter of the pipeline is greater than or equal to 800mm), the pipeline has lost the carrying capacity, and a large amount of silt will be generated in the pipeline, so it is difficult to remove the silt in the pipeline, and the existing conventional trenchless repair technology cannot be used for repair, and the safety of construction personnel cannot be guaranteed. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a pipeline repair device to alleviate the problem that when the damaged pipeline to be repaired is large in section (the inner diameter of the pipeline is greater than or equal to 800mm), a large amount of silt will be generated in the pipeline, the conventional trenchless repair technology cannot be used for repair, and the safety of construction personnel cannot be guaranteed.
[0005] In order to solve the above technical problems, the technical scheme provided by the utility model is as follows:
[0006] A pipeline repair device for repairing a pipeline with poor geology and large section, comprising a grouting structure and a prefabricated pipe piece structure, the grouting structure is arranged outside the pipeline to be repaired, and the prefabricated pipe piece structure is arranged on the inner wall of the pipeline to be repaired.
[0007] The grouting structure comprises a plurality of grouting pipes arranged outside the pipeline to be repaired, and the grouting pipes are arranged at intervals.
[0008] The prefabricated pipe piece structure comprises an upper ring lining pipe piece, a lower ring lining pipe piece and a lining pipe, the upper ring lining pipe piece and the lower ring lining pipe piece are connected in a closed structure along the circumference, and the upper ring lining pipe piece and the lower ring lining pipe piece are arranged between the lining pipe and the pipeline to be repaired.
[0009] Furthermore, the top end of the grouting pipe is flush with the ground line, and the bottom end of the grouting pipe is located above or below the pipeline to be repaired.
[0010] Furthermore, the grouting structure further comprises a reinforced soil layer, and the reinforced soil layer is arranged outside the pipeline to be repaired along the circumference.
[0011] Further, the upper ring inner lining pipe piece comprises an upper ring outer steel plate, an upper ring stiffener and an upper ring inner steel plate, and the upper ring stiffener is arranged between the upper ring outer steel plate and the upper ring inner steel plate.
[0012] Further, the upper ring outer steel plate, the upper ring stiffener and the upper ring inner steel plate jointly enclose to form a closed semi-ring structure.
[0013] Further, the upper ring outer steel plate and the upper ring inner steel plate are connected through a buckle structure.
[0014] Further, the lower ring inner lining pipe piece comprises a lower ring outer steel plate, a lower ring stiffener and a lower ring inner steel plate, and the lower ring stiffener is arranged between the lower ring outer steel plate and the lower ring inner steel plate.
[0015] Further, the lower ring outer steel plate, the lower ring stiffener and the lower ring inner steel plate jointly enclose to form a closed semi-ring structure.
[0016] Further, the lower ring outer steel plate and the lower ring inner steel plate are connected through a buckle structure.
[0017] Further, the upper ring inner lining pipe piece and the lower ring inner lining pipe piece are connected through a buckle structure.
[0018] The utility model at least brings following beneficial effect:
[0019] The utility model provides a pipeline repair device for the repair of poor geological large-section pipeline, comprising: a grouting structure and a prefabricated pipe piece structure, the grouting structure is arranged outside the pipeline to be repaired, and the prefabricated pipe piece structure is arranged on the inner wall of the pipeline to be repaired.
[0020] The grouting structure can ensure the stability of the surrounding soil and the pipeline foundation of the pipeline to be repaired, ensure the safety of the personnel construction in the pipeline to be repaired, the prefabricated pipe piece structure can bear the water and soil pressure on the outside and the internal water pressure, the double-layer pipe piece structure has large rigidity, high strength and light weight, and can better meet the stress requirement of the large-diameter pipeline to be repaired.
[0021] In order to make the above object, characteristics and advantages of the present application more obvious, the following preferred embodiments are described in detail below, and the accompanying drawings are used for reference. BRIEF DESCRIPTION OF DRAWINGS
[0022] In order to make the above object, characteristics and advantages of the present application more obvious, the following preferred embodiments are described in detail below, and the accompanying drawings are used for reference.
[0023] Figure 1 A reinforcing profile of a soil body around a pipeline to be repaired is provided for the embodiments of the present application.
[0024] Figure 2 A reinforcing plan of a soil body around a pipeline to be repaired is provided for the embodiments of the present application.
[0025] Figure 3 A reinforcing profile of a soil body around a pipeline to be repaired is provided for the embodiments of the present application.
[0026] Figure 4 A schematic diagram of a prefabricated segment structure is provided for the embodiments of the present application.
[0027] Icon:
[0028] 1-ground line; 2-grouting pipe; 3-reinforced soil body layer; 4-pipeline to be repaired; 5-upper ring inner lining segment; 6-lower ring inner lining segment; 7-inner lining pipe; 8-welding seam; 9-buckle connecting device one; 10-buckle connecting device two; 501-upper ring outer steel plate; 502-upper ring stiffening rib; 503-upper ring inner steel plate; 601-lower ring outer steel plate; 602-lower ring stiffening rib; 603-lower ring inner steel plate. DETAILED DESCRIPTION
[0029] The technical solutions of the present application will be described below in detail with reference to the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0030] It should be noted that: similar labels and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Physical quantities in formulas, unless otherwise specified, should be understood as basic quantities of the International System of Units (SI) base units, or derived quantities derived from basic quantities through mathematical operations such as multiplication, division, differentiation, or integration.
[0032] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0033] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0034] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0035] Example 1
[0036] When the damage to the pipeline to be repaired is severe and has a large cross-section (inner diameter ≥ 800 mm), the pipeline has lost its load-bearing capacity and a large amount of silt will be generated inside the pipeline. It is difficult to remove the silt from the pipeline, and existing conventional trenchless repair techniques cannot be used for repair, nor can the safety of construction personnel be guaranteed.
[0037] Therefore, the utility model discloses a kind of pipeline repair devices, for the repair of adverse geology large section pipeline, comprising: grouting structure and prefabricated pipe piece structure, grouting structure is set to the outside of the pipeline 4 to be repaired, prefabricated pipe piece structure is set to the inner wall of the pipeline 4 to be repaired;Grouting structure includes the multiple grouting pipes 2 being set to the outside of the pipeline 4 to be repaired, and the multiple grouting pipes 2 are interval set;Prefabricated pipe piece structure includes upper ring inner lining pipe piece 5, lower ring inner lining pipe piece 6 and inner lining pipe 7, and upper ring inner lining pipe piece 5 and lower ring inner lining pipe piece 6 are connected to form closed structure along the circumference, and upper ring inner lining pipe piece 5 and lower ring inner lining pipe piece 6 are arranged between inner lining pipe 7 and the pipeline 4 to be repaired, and upper ring inner lining pipe piece 5 and lower ring inner lining pipe piece 6 are connected by buckle structure.
[0038] The grouting structure can ensure the stability of the surrounding soil and pipeline foundation of the pipeline to be repaired 4, and ensure the safety of the personnel construction inside the pipeline to be repaired 4, and the prefabricated pipe piece structure can bear the water and soil pressure and internal water pressure on the outside, and the double-layer pipe piece structure has large rigidity, high strength and light weight, and can better meet the stress requirements of the large-diameter pipeline to be repaired 4.
[0039] In an optional mode of the embodiment, the top end of the grouting pipe 2 is flush with the ground line 1, and the bottom end of the grouting pipe 2 is located above or below the pipeline to be repaired 4.
[0040] Please refer to Figure 1 The grouting pipe 2 is arranged around the pipeline to be repaired 4, and grouting is performed from the ground line 1 to a certain depth at the bottom of the pipeline, so as to ensure the stability of the surrounding soil and pipeline foundation soil of the pipeline to be repaired 4, and provide safety guarantee for the next step of artificial cleaning of sediments inside the pipeline and pipe piece installation. The soil within a certain range above the pipeline to be repaired 4 and below the pipeline foundation along the line is grouted and reinforced by the grouting pipe 2, and the grouting and reinforcing material can be cement and water glass double slurry.
[0041] In an optional mode of the embodiment, the grouting structure further includes a reinforced soil layer 3, and the reinforced soil layer 3 is arranged on the outside of the pipeline to be repaired 4 along the circumference.
[0042] Please refer to Figure 2 The grouting can form a reinforced soil layer 3 outside the pipeline to be repaired 4, so as to ensure the stability of the surrounding soil of the pipeline to be repaired 4, and there is no risk of gushing water and sand.
[0043] In an optional mode of the embodiment, the upper ring inner lining pipe piece 5 includes an upper ring outer steel plate 501, an upper ring stiffening rib 502 and an upper ring inner steel plate 503, and the upper ring stiffening rib 502 is arranged between the upper ring outer steel plate 501 and the upper ring inner steel plate 503.
[0044] As shown in Figure 4 The upper ring outer steel plate 501, the upper ring stiffening rib 502 and the upper ring inner steel plate 503 jointly enclose to form a closed semi-ring structure, and the upper ring outer steel plate 501 and the upper ring inner steel plate 503 are connected through the buckle structure. The upper ring outer steel plate 501 and the upper ring inner steel plate 503 are respectively provided with buckle connection device one 9 and buckle connection device two 10, so as to realize the buckle connection of the two.
[0045] In an optional mode of the embodiment, the lower ring inner liner piece 6 includes a lower ring outer steel plate 601, a lower ring stiffening rib 602 and a lower ring inner steel plate 603, and the lower ring stiffening rib 602 is arranged between the lower ring outer steel plate 601 and the lower ring inner steel plate 603.
[0046] As shown in Figure 4 The lower ring outer steel plate 601, the lower ring stiffening rib 602 and the lower ring inner steel plate 603 jointly enclose to form a closed semi-ring structure, and the lower ring outer steel plate 601 and the lower ring inner steel plate 603 are connected through the buckle structure. The lower ring outer steel plate 601 and the lower ring inner steel plate 603 are respectively provided with buckle connection device one 9 and buckle connection device two 10, so as to realize the buckle connection of the two.
[0047] As shown in Figure 3 and Figure 4 In the embodiment, the outer steel plate is connected through the buckle connection in the circumferential direction and the longitudinal direction, the inner steel plate is connected through the weld 8 in the circumferential direction and the buckle connection in the longitudinal direction.
[0048] The steel pipe piece can bear the water and soil pressure on the outside and the internal water pressure, adopts the double-layer structure pipe piece, the stiffening rib is arranged in the middle, the pipe piece structure has the characteristics of large overall rigidity, high strength, light weight and the like, and can better meet the stress requirement of the to-be-repaired pipeline 4.
[0049] Embodiment two
[0050] The embodiment provides a trenchless repair method for a large-section pipeline in adverse geology, and the steps are as follows:
[0051] S1: Taking the interval between inspection wells as a repair section, temporarily plugging and draining on both sides of the upstream and downstream inspection wells to ensure that the to-be-repaired pipeline 4 has no upstream water inflow;
[0052] S2: Grouting and reinforcing the soil within a certain range above the to-be-repaired pipeline 4 and below the pipeline foundation along the line;
[0053] S3: Cleaning the sediments in the to-be-repaired pipeline 4 by manually going down the well, the length of each cleaning can be according to the length of the precast pipe piece structure assembly, and the length of each cleaning is preliminarily determined as 40 cm;
[0054] S4: the prefabricated pipe piece structure is transported to the inside of the pipeline 4 to be repaired, and is manually installed, the pipe piece is 30cm per ring, and the pipe piece is divided into upper and lower pipe pieces per ring, the upper and lower pipe pieces are connected through buckling and welding, and the rings are connected through buckling;
[0055] S5: the steps of S3 and S4 are cycled until the pipeline repair is completed;
[0056] S6: ultraviolet curing repair is performed in the pipeline 4 to be repaired.
[0057] Through the ultraviolet curing repair, the inner lining hose can be firmly pasted on the inner wall of the pipe piece through the resin, the sealing requirement of the pipeline can be met, and the pipeline can be prevented from leaking.
[0058] Through the comprehensive utilization of the grouting technology, the inner lining pipe piece reinforcing technology and the ultraviolet curing repair technology, the effectiveness of the pipeline repair can be ensured.
[0059] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: the technical solutions recorded in the foregoing embodiments can still be modified, or part or all of the technical features can be replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.
Claims
1. A pipe repairing device for repairing a large-section pipe in poor geology, characterized by comprising: The application relates to a pipeline repair device, which comprises: a grouting structure arranged outside a pipeline to be repaired and a prefabricated pipe segment structure arranged on the inner wall of the pipeline to be repaired; the grouting structure comprises a plurality of grouting pipes arranged outside the pipeline to be repaired, and the grouting pipes are arranged at intervals; the prefabricated pipe segment structure comprises an upper ring inner lining pipe segment, a lower ring inner lining pipe segment and an inner lining pipe, the upper ring inner lining pipe segment and the lower ring inner lining pipe segment are connected in a closed structure in the circumferential direction, and the upper ring inner lining pipe segment and the lower ring inner lining pipe segment are arranged between the inner lining pipe and the pipeline to be repaired.
2. The pipeline repair device according to claim 1, wherein the top end of the grouting pipe is flush with the ground line, and the bottom end of the grouting pipe is arranged above or below the pipeline to be repaired.
3. The pipeline repair device according to claim 2, wherein the grouting structure further comprises a reinforced soil layer, and the reinforced soil layer is arranged outside the pipeline to be repaired in the circumferential direction.
4. The pipeline repair device according to claim 1, wherein the upper ring inner lining pipe segment comprises an upper ring outer steel plate, an upper ring stiffening rib and an upper ring inner steel plate, and the upper ring stiffening rib is arranged between the upper ring outer steel plate and the upper ring inner steel plate.
5. The pipeline repair device according to claim 4, wherein the upper ring outer steel plate, the upper ring stiffening rib and the upper ring inner steel plate jointly form a closed semi-ring structure.
6. The pipeline repair device according to claim 4, wherein the upper ring outer steel plate and the upper ring inner steel plate are connected through a buckle structure.
7. The pipeline repair device according to claim 4, wherein the lower ring inner lining pipe segment comprises a lower ring outer steel plate, a lower ring stiffening rib and a lower ring inner steel plate, and the lower ring stiffening rib is arranged between the lower ring outer steel plate and the lower ring inner steel plate.
8. The pipeline repair device according to claim 7, wherein the lower ring outer steel plate, the lower ring stiffening rib and the lower ring inner steel plate jointly form a closed semi-ring structure.
9. The pipeline repair device according to claim 7, wherein the lower ring outer steel plate and the lower ring inner steel plate are connected through a buckle structure.
10. The pipeline repair device according to claim 1, wherein the upper ring inner lining pipe segment and the lower ring inner lining pipe segment are connected through a buckle structure.