Deformation joint structure of large-diameter reinforced concrete pressure pipeline
By setting an Ω metal plate and a rubber water stop in the deformed joint structure of a large diameter reinforced concrete pressure pipeline, combined with a sealing fixing part, the leakage problems caused by unsatisfactory grouting leakage plugging and secondary disturbance in the prior art are solved, and better waterproofing and durability are achieved.
Patent Information
- Application Number
- CN202422001573.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-08-19
AI Technical Summary
When the prior art deals with leakage of deformation joints of large-diameter reinforced concrete pressure pipelines, the grouting leakage plugging effect is not ideal, and after the main structure is secondary disturbed, leakage channels are prone to appear again, and repeated grouting is required for a long time, affecting the normal operation of the project and structural safety.
The deformed joint structure of the large diameter reinforced concrete pressure pipeline is arranged through the inside and outside, and the Ω-type metal plate and rubber water stop are fixedly connected to the pipeline structure through the sealing fixing part to form a sealed waterproof layer.
Under high internal water pressure, the Ω metal plate and rubber water stop belt are squeezed outwards, and combined with the sealing fixing part, it significantly improves the waterproof effect, reduces the impact of secondary disturbance on leakage, and prolongs the durability of leakage plugging.
Smart Images
Figure CN223034072U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of municipal culvert engineering, and particularly relates to a deformation joint structure of a large-diameter reinforced concrete pressure pipeline. Background Art
[0002] In the current technology, leakage easily occurs at the deformation joints of underground projects, which has a great impact on the normal operation of the project and the structural safety. Moreover, its causes are complex and it is difficult to radically cure in the later stage. In actual projects, the treatment plan after leakage usually is grouting plugging, but its effect is not very ideal. And after the main structure is disturbed for the second time, leakage channels will appear again between the original grouting material and the main structure, and it is necessary to repeatedly grout and plug for a long time, which affects the normal operation of the project and the structural safety during the process.
[0003] The defects of the existing technology are as follows:
[0004] Since the treatment plan after leakage in the existing technology usually is grouting plugging, but its effect is not very ideal. And after the main structure is disturbed for the second time, leakage channels will appear again between the original grouting material and the main structure, so it is necessary to repeatedly grout and plug for a long time, which affects the normal operation of the project and the structural safety during the process. Summary of the Invention
[0005] Aiming at the above problems, the utility model provides a deformation joint structure of a large-diameter reinforced concrete pressure pipeline, aiming to improve the waterproof effect; meanwhile, it should adapt to the secondary disturbance of the pipeline structure.
[0006] To solve the above problems, the technical solution provided by the utility model is as follows:
[0007] A deformation joint structure of a large-diameter reinforced concrete pressure pipeline, the deformation joint structure is arranged through the pipe wall of the pressure pipeline structure inside and outside; on the inner side of the deformation joint structure, a buffer rubber, a water stop strip, a buffer strip, an Ω-shaped metal plate, a rubber water stop belt, a metal pressing plate and a sealant are sequentially stacked from outside to inside; wherein:
[0008] The protruding parts of the Ω-shaped metal plate and the rubber water stop belt are arranged on the inner side of the deformation joint structure; the Ω-shaped metal plate, the rubber water stop belt and the metal pressing plate are fixedly connected with the pressure pipeline structure through a sealing and fixing part.
[0009] Preferably, the buffer rubber is filled circumferentially along the deformation joint structure, and a groove is formed between it and the pressure pipeline structure on its inner side; the buffer rubber adopts a polyurethane sealant.
[0010] Preferably, the water stop strips are symmetrically distributed circumferentially along the groove; the water stop strips are respectively in close contact with the pressure pipeline structure and the buffer rubber; the water stop strips adopt water-swelling water stop strips.
[0011] Preferably, the buffer strips are symmetrically distributed circumferentially along the groove; the buffer strips are in close contact with the pressure pipeline structure and the water stop strip respectively; the buffer strips are made of polyethylene (PE) foam rods.
[0012] Preferably, the sealing and fixing part includes structural adhesive, adhesive, and edge sealing adhesive; the structural adhesive and the edge sealing adhesive are Class I AAA grade normal temperature structural adhesives; the adhesive is a supporting adhesive.
[0013] Preferably, the wings of the Ω-shaped metal plate are longitudinally symmetric along the pressure pipeline structure, and are adhesively bonded to the inner wall of the pressure pipeline structure circumferentially through the structural adhesive; the ends of the wings of the Ω-shaped metal plate are adhesively bonded to the pressure pipeline structure through the edge sealing adhesive; the protruding part of the Ω-shaped metal plate faces the outside of the pressure pipeline structure and is in close contact with the buffer strip; the width of the protruding part of the Ω-shaped metal plate is equal to the width of the deformation joint structure.
[0014] Preferably, the wings of the rubber water stop are longitudinally symmetric along the pressure pipeline structure; one circumferential side of the wings of the rubber water stop is adhesively bonded to the Ω-shaped metal plate through the adhesive, and the other side is adhesively bonded to the metal pressing plate through the adhesive; the protruding part of the rubber water stop faces the outside of the pressure pipeline structure, and the width of the protruding part of the rubber water stop is equal to the inner net size of the protruding part of the Ω-shaped metal plate.
[0015] Preferably, the deformation joint structure further includes an anchoring assembly; through holes matching the anchoring assembly are respectively provided on the Ω-shaped metal plate, the rubber water stop, and the metal pressing plate; the bolt end of the anchoring assembly passes through the stainless steel gasket, the rubber gasket, and the through hole and then extends into the pressure pipeline structure, and fixes the metal pressing plate to the pressure pipeline structure.
[0016] Preferably, the number of the anchoring assemblies is two groups, and the two groups of anchoring assemblies are symmetrically arranged on both sides of the center line of the metal pressing plate along the longitudinal direction of the pressure pipeline structure.
[0017] Preferably, the inner surface of the sealant is coplanar with the inner wall of the metal pressing plate.
[0018] Compared with the prior art, the present utility model has the following advantages:
[0019] 1. Since the present utility model changes the traditional grouting plugging to arranging an Ω-shaped metal plate and a rubber water stop inside the pressure pipeline, under the action of high internal water pressure, combined with the sealing and fixing part, it can achieve a good waterproof effect.
[0020] 2. Since the utility model adopts the structure of arranging the Ω-shaped metal plate and the rubber water stop belt inside the pressure pipeline, the secondary disturbance of the pipeline structure can be utilized. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic structural view of the deformation joint structure of the large-diameter reinforced concrete pressure pipeline of the specific embodiment of the utility model.
[0022] Wherein: 1. Ω-shaped metal plate, 2. Rubber water stop belt, 3. Metal pressing plate, 4. Structural adhesive, 5. Supporting adhesive, 6. Edge sealing adhesive, 7. Rubber gasket, 8. Stainless steel gasket, 9. Sealing glue, 10. Pressure pipeline structure, 11. Buffer strip, 12. Water stop strip, 13. Buffer rubber, 14. Anchoring component, 15. Sealing and fixing part DETAILED DESCRIPTION OF THE EMBODIMENTS
[0023] The following further clarifies the present invention in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. After reading the present invention, those skilled in the art's various equivalent modifications of the present invention all fall within the scope defined by the appended claims of this application.
[0024] As Figure 1 shown, for the deformation joint structure of the large-diameter reinforced concrete pressure pipeline, the deformation joint structure is arranged through and through on the pipe wall of the pressure pipeline structure 10; on the inner side of the deformation joint structure, a buffer rubber 13, a water stop strip 12, a buffer strip 11, an Ω-shaped metal plate 1, a rubber water stop belt 2, a metal pressing plate 3 and a sealing glue 9 are sequentially stacked from outside to inside; wherein:
[0025] The protruding parts of the Ω-shaped metal plate 1 and the rubber water stop belt 2 are arranged on the inner side of the deformation joint structure; the Ω-shaped metal plate 1, the rubber water stop belt 2 and the metal pressing plate 3 are fixedly connected to the pressure pipeline structure 10 through the sealing and fixing part 15.
[0026] It should be noted that the utility model changes the traditional embedded water stop belt to arranging the Ω-shaped metal plate 1 and the rubber water stop belt 2 inside the pressure pipeline structure 10. In this way, under the action of high internal water pressure, the Ω-shaped metal plate 1 and the rubber water stop belt 2 are compacted towards the outside of the pressure pipeline structure, and together with the sealing and fixing part 15, it can achieve a good waterproof effect.
[0027] It should be noted that the wing edge of the Ω-shaped metal plate 1 is longitudinally symmetrical with respect to the pressure pipeline structure 10, and is adhesively attached to the inner wall of the pressure pipeline structure 10 through the structural adhesive 4 in the circumferential direction; the end of the wing edge of the Ω-shaped metal plate 1 is adhesively attached to the pressure pipeline structure 10 through the edge sealing adhesive 6; the protruding part of the Ω-shaped metal plate 1 faces the outside of the pressure pipeline structure 10 and is closely attached to the buffer strip 11; the width of the protruding part of the Ω-shaped metal plate 1 is equal to the width of the deformation joint structure.
[0028] It should be further noted that under the action of high internal and external water pressures, the wing ring of the Ω-shaped metal plate 1 is adhesively attached to the pressure pipeline structure 10 in a close-fitting manner, thereby ensuring its waterproof effect. At the same time, the protruding end of the Ω-shaped metal plate 1 is closely attached to the buffer strip 11, which can ensure the stability of the Ω-shaped metal plate 1 and reduce the displacement under the action of external forces.
[0029] It should be further noted that by orienting the protruding part of the Ω-shaped metal plate 1 towards the outside of the pressure pipeline structure 10, under the action of high internal water pressure, the Ω-shaped metal plate 1 is compacted towards the outside of the pressure pipeline and becomes tighter under pressure, thereby ensuring its waterproof effect. At the same time, the width of the protruding part of the Ω-shaped metal plate 1 is equal to the width of the deformation joint structure, which can ensure the stability of the Ω-shaped metal plate 1 and reduce the displacement under the action of external forces.
[0030] It should be noted that the wings of the rubber waterstop 2 are longitudinally symmetric with respect to the pressure pipeline structure 10. The circumferential side of the wing of the rubber waterstop 2 is adhesively attached to the Ω-shaped metal plate 1 through the adhesive 5, and the other side is adhesively attached to the metal pressing plate 3 through the adhesive 5. The protruding part of the rubber waterstop 2 faces the outside of the pressure pipeline structure 10, and the width of the protruding part of the rubber waterstop 2 is equal to the inner net dimension of the protruding part of the Ω-shaped metal plate 1.
[0031] It should be further noted that by adding the rubber waterstop 2 outside the Ω-shaped metal plate 1, the sealing effect of the Ω-shaped metal plate 1 can be better, and the waterproof effect can be further enhanced.
[0032] It should be further noted that by orienting the protruding part of the rubber waterstop 2 towards the outside of the pressure pipeline structure 10, under the action of high internal water pressure, the rubber waterstop 2 is compacted towards the outside of the pressure pipeline and becomes tighter under pressure, thereby ensuring its waterproof effect. At the same time, the width of the protruding part of the rubber waterstop 2 is equal to the inner net dimension of the protruding part of the Ω-shaped metal plate 1, which can ensure the stability of the rubber waterstop 2 and reduce the displacement under the action of external forces.
[0033] It should be further noted that the Ω-shaped metal plate 1 and the rubber waterstop 2 need to be customized according to the radial displacement and horizontal displacement on both sides of the existing pressure pipeline deformation joint, which can make the Ω-shaped metal plate 1 and the rubber waterstop 2 fit closely with the existing pressure pipeline structure. The sealing and fixing part 15 can ensure a better sealing effect and can adapt to the secondary disturbance of the pipeline structure.
[0034] In this specific embodiment, the Ω-shaped metal plate 1 is made of a metal pressing plate, preferably stainless steel, with a thickness of 3 mm.
[0035] In this specific embodiment, the rubber waterstop 2 is a chloroprene rubber flat waterstop with a thickness of 8 mm. The material properties shall comply with the provisions of Table D.0.2-5 in the Technical Specification for Leakage Treatment of Underground Engineering (JGJ / T 212-2010), and the connection of the rubber waterstop shall comply with the provisions of Article 6.3.13 in the Technical Specification for Deformation Joints of Concrete Structures in Water Supply and Drainage Engineering (TCECS117-2017).
[0036] It should be noted that the buffer rubber 13 is filled along the circumferential direction of the deformation joint structure and forms a groove on the inner side with the pressure pipeline structure 10; the buffer rubber 13 is made of polyurethane sealant.
[0037] It should be further noted that the buffer rubber 13 can ensure that the deformation joint structure is closely attached, effectively reducing the mutual infiltration of internal and external water; the strength of the buffer rubber 13 is much lower than that of the reinforced concrete structure, which can effectively reduce the damage to the main structure caused by the direct interaction of the reinforced concrete structures on both sides of the deformation joint due to uneven settlement, etc.
[0038] It should be noted that the waterstop strips 12 are symmetrically distributed along the circumferential direction of the groove; the waterstop strips 12 are closely attached to the pressure pipeline structure 10 and the buffer rubber 13 respectively; the waterstop strips 12 are made of water-swellable waterstop strips.
[0039] It should be further noted that by symmetrically distributing the waterstop strips 12 along the circumferential direction of the groove and closely attaching them to the pressure pipeline structure 10 and the buffer rubber 13, it can ensure that the waterstop strips 12 expand under the condition of water, thus ensuring that the deformation joint structure is more closely attached and effectively reducing the mutual infiltration of internal and external water.
[0040] It should be noted that the buffer strips 11 are symmetrically distributed along the circumferential direction of the groove; the buffer strips 11 are closely attached to the pressure pipeline structure 10 and the waterstop strips 12 respectively; the buffer strips 11 are made of polyethylene PE foam rods.
[0041] It should be further noted that the buffer strips 11 are symmetrically distributed along the circumferential direction of the groove and are closely attached to the pressure pipeline structure 10 and the waterstop strips 12, which can ensure that the deformation joint structure is closely attached, effectively reducing the mutual infiltration of internal and external water. The strength of the buffer strips is much lower than that of the reinforced concrete structure and the rubber waterstop 2, which can effectively reduce the damage to the main structure caused by the direct interaction of the reinforced concrete structures on both sides of the deformation joint due to uneven settlement, etc. and the influence of the water swelling of the buffer rubber 13 and the waterstop strips 12 on the rubber waterstop 2.
[0042] It should be noted that the sealing and fixing part 15 includes structural adhesive 4, adhesive 5, and edge-sealing adhesive 6; the structural adhesive 4 and the edge-sealing adhesive 6 are Class I AAA grade normal-temperature structural adhesives; the adhesive 5 is a supporting adhesive.
[0043] It should be further noted that using Class I AAA normal-temperature structural adhesive can make the bonding between the Ω-shaped metal plate 1 and the pressure pipeline structure 10 dense and firm. The performance shall comply with the provisions of Article B.0.3 of the National Standard "General Code for Appraisal and Strengthening of Existing Buildings" (GB 55021-2021).
[0044] It should be further noted that using the supporting adhesive can make the bonding between the rubber waterstop 2, the Ω-shaped metal plate 1 and the metal pressing plate 3 dense and firm.
[0045] It should be further noted that the adhesive 5 uses chlorinated rubber adhesive. The material performance shall comply with the provisions of Table D.0.2-6 of the "Technical Specification for Leakage Treatment of Underground Engineering" (JGJ / T 212-2010).
[0046] It should be noted that the inner surface of the sealant 9 is coplanar with the inner wall of the metal pressing plate 3.
[0047] It should be further noted that by setting the inner surface of the sealant 9 to be coplanar with the inner wall of the metal pressing plate 3, on the one hand, it can be more complete on the basis of ensuring the structural strength of the entire expansion joint structure, and on the other hand, it makes the entire expansion joint structure look more beautiful.
[0048] In this specific embodiment, the metal pressing plate 3 is a metal pressing plate, preferably made of stainless steel, with a thickness of 5 mm.
[0049] It should be noted that the expansion joint structure further includes an anchoring assembly 14; the Ω-shaped metal plate 1, the rubber waterstop 2, and the metal pressing plate 3 are respectively provided with through holes matching the anchoring assembly 14; the bolt end of the anchoring assembly 14 passes through the stainless steel gasket 8, the rubber gasket 7, and the through hole and then extends into the pressure pipeline structure 10, and fixes the metal pressing plate 3 to the pressure pipeline structure 10.
[0050] It should be further noted that by setting the anchoring assembly 14, the metal pressing plate 3 can be firmly connected to the pressure pipeline structure 10 to avoid loosening or falling off; at the same time, the metal pressing plate 3 can also press the Ω-shaped metal plate 1 and the rubber waterstop 2 against the pressure pipeline structure 10 to ensure the waterproof effect.
[0051] It should be further noted that the number of the anchoring assemblies 14 is two groups, and the two groups of anchoring assemblies 14 are symmetrically arranged on both sides of the center line of the metal pressing plate 3 along the longitudinal direction of the pressure pipeline structure 10.
[0052] It should be further noted that by setting two groups of anchoring assemblies 14, the metal pressing plate 3 can be more firmly connected and fixed to the pressure pipeline structure 10, ensuring its force balance and improving the anti-external force interference performance.
[0053] In this specific embodiment, the anchoring assembly 14 adopts an expansion type torque-controlled mechanical anchor bolt. The anchor bolt is of the model M10L = 120mm, and the length of the screw rod is 120mm. Between the nut and the metal pressing plate, there are used a circular rubber gasket with a thickness of 2mm and a diameter of 20mm and a circular stainless steel gasket with a thickness of 2mm and a diameter of 20mm. The performance and inspection standards of the anchor bolt shall comply with the relevant provisions of "Mechanical Anchor Bolts for Concrete" (JG / T 160-2017). During construction, the pressing plate 3 can be pre-drilled before installation, with a hole spacing of 300mm. If the expansion anchor bolt touches the steel bar during the driving process, the position of the expansion anchor bolt can be adjusted forward and backward to ensure that the final formed anchor bolt spacing is not greater than 300mm. If the steel bar is touched during the hole forming process, the abandoned drill hole should be promptly sealed with high-strength non-shrinking mortar. The construction party can also pre-drill holes in the structure to install the anchor bolts and then position and install the waterproof materials. When fabricating the anchor plate, when the diameter of the anchor plate hole is greater than the allowable value in Table 7.1.6 of "Technical Specification for Post-anchoring of Concrete Structures" (JGJ 145-2013) and the maximum gap is not greater than 2 times the maximum gap in Table 7.1.6, the void should be filled densely with an adhesive.
[0054] During the construction of the expansion type torque-controlled mechanical anchor bolt, the construction procedures shall comply with the following regulations: First step, clean the attachments, oil stains, etc. on the substrate surface to ensure that the surface is firm, flat, without obvious defects, and carry out lofting and positioning; Second step, drill, clean the hole and install the anchor bolt; Third step, conduct anchoring quality inspection. 2 For the anchor holes of the anchor bolt, tools such as compressed air, vacuum cleaner, manual air pump and special brush can be used to clean the dust in the hole. 3 The drilling quality and the allowable deviation of the diameter shall meet the requirements in Tables 9.2.4-1 and 9.2.4-2 of "Technical Specification for Post-anchoring of Concrete Structures" (JGJ 145-2013). 4 For other relevant requirements, please refer to the relevant chapters of "Technical Specification for Post-anchoring of Concrete Structures" (JGJ 145-2013).
[0055] In the above detailed description, various features are combined in a single embodiment to simplify the present disclosure. This method of disclosure should not be construed as reflecting the intention that the embodiments of the claimed subject matter require more features than those clearly stated in each claim. On the contrary, as reflected in the appended claims, the present invention is in a state with fewer features than all the features of the disclosed single embodiment. Therefore, the appended claims are hereby clearly incorporated into the detailed description, where each claim alone serves as a separate preferred embodiment of the present invention.
[0056] The above-described disclosed embodiments are provided so that any person skilled in the art can implement or use the present invention. For those skilled in the art, various modifications of these embodiments are obvious, and the general principles defined herein can also be applied to other embodiments without departing from the spirit and scope of the present disclosure. Therefore, the present disclosure is not limited to the embodiments given herein, but is consistent with the broadest scope of the principles and novel features disclosed in this application.
[0057] The above description includes examples of one or more embodiments. Of course, it is not possible to describe all possible combinations of components or methods for the purpose of describing the above embodiments, but those of ordinary skill in the art should recognize that the various embodiments can be further combined and arranged. Therefore, the embodiments described herein are intended to cover all such changes, modifications, and variations that fall within the scope of the appended claims. In addition, with respect to the term "comprising" used in the specification or claims, the manner in which this term is encompassed is similar to the term "including," as that term is interpreted when used as a transitional word in a claim. Further, any use of the term "or" in the specification or claims is to mean "non-exclusive or."
[0058] The specific embodiments described above further elaborate on the objectives, technical solutions, and beneficial effects of the present invention. It should be understood that the above description is only the specific embodiments of the present invention and is not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.
Claims
1. A deformation joint structure of a large diameter reinforced concrete pressure pipe, characterized in that: The deformation joint structure is arranged on the pipe wall of the pressure pipe structure (10) in a manner that it penetrates inside and outside; the inner side of the deformation joint structure is provided with a buffer glue (13), a water stop strip (12), a buffer strip (11), an Ω-shaped metal plate (1), a rubber water stop strip (2), a metal pressure plate (3) and a sealant (9) in a sequential manner from outside to inside; wherein: The protruding portion of the Ω-shaped metal plate (1) and the protruding portion of the rubber waterstop (2) are arranged on the inner side of the deformation joint structure; the Ω-shaped metal plate (1), the rubber waterstop (2) and the metal pressure plate (3) are fixedly connected to the pressure pipe structure (10) via a sealing fixing portion (15).
2. The deformation joint structure of a large diameter reinforced concrete pressure pipe according to claim 1 is characterized in that: The buffer glue (13) is filled in the circumferential direction along the deformation joint structure, and forms a groove with the pressure pipe structure (10) on the inner side thereof; the buffer glue (13) is made of polyurethane sealant.
3. The deformation joint structure of the large-diameter reinforced concrete pressure pipe according to claim 2 is characterized in that: The water stop strips (12) are symmetrically distributed along the annular direction of the groove; the water stop strips (12) are respectively in close contact with the pressure pipe structure (10) and the buffer glue (13); and the water stop strips (12) are water-swelling water stop strips.
4. The deformation joint structure of the large diameter reinforced concrete pressure pipe according to claim 3 is characterized in that: The buffer strips (11) are symmetrically distributed along the annular direction of the groove; the buffer strips (11) are respectively in close contact with the pressure pipe structure (10) and the water stop strips (12); and the buffer strips (11) are made of polyethylene PE foam rods.
5. The deformation joint structure of a large diameter reinforced concrete pressure pipe according to claim 4 is characterized in that: The sealing and fixing part (15) comprises a structural adhesive (4), an adhesive (5), and an edge-sealing adhesive (6); the structural adhesive (4) and the edge-sealing adhesive (6) are Class I AAA-grade normal-temperature structural adhesive; and the adhesive (5) is a matching adhesive.
6. The deformation joint structure of a large diameter reinforced concrete pressure pipe according to claim 5 is characterized in that: The wing edges of the Ω-shaped metal plate (1) are longitudinally symmetrical along the pressure pipe structure (10), and are tightly adhered to the inner wall of the pressure pipe structure (10) in the circumferential direction by the structural adhesive (4); the ends of the wing edges of the Ω-shaped metal plate (1) are glued to the pressure pipe structure (10) by the edge sealing adhesive (6); the protruding portion of the Ω-shaped metal plate (1) faces the outside of the pressure pipe structure (10) and is tightly adhered to the buffer strip (11); the width of the protruding portion of the Ω-shaped metal plate (1) is equal to the width of the deformation joint structure.
7. The deformation joint structure of a large diameter reinforced concrete pressure pipe according to claim 6, characterized in that: The wing edge of the rubber waterstop (2) is symmetrical along the longitudinal direction of the pressure pipe structure (10); one circumferential side of the wing edge of the rubber waterstop (2) is tightly bonded to the Ω-shaped metal plate (1) through the adhesive (5), and the other side is tightly bonded to the metal pressure plate (3) through the adhesive (5); the protrusion of the rubber waterstop (2) faces the outside of the pressure pipe structure (10), and the width of the protrusion of the rubber waterstop (2) is equal to the inner net size of the protrusion of the Ω-shaped metal plate (1).
8. The deformation joint structure of a large diameter reinforced concrete pressure pipe according to claim 7 is characterized in that: The deformation joint structure also includes an anchoring assembly (14); the Ω-shaped metal plate (1), the rubber water stop (2), and the metal pressure plate (3) are respectively provided with through holes matching the anchoring assembly (14); the bolt end of the anchoring assembly (14) passes through a stainless steel gasket (8), a rubber gasket (7), and the through hole and then extends into the pressure pipe structure (10), thereby fixing the metal pressure plate (3) to the pressure pipe structure (10).
9. The deformation joint structure of a large diameter reinforced concrete pressure pipe according to claim 8, characterized in that: The number of the anchoring assemblies (14) is two groups, and the two groups of the anchoring assemblies (14) are symmetrically arranged on both sides of the center line of the metal pressure plate (3) along the longitudinal direction of the pressure pipe structure (10).
10. The deformation joint structure of a large diameter reinforced concrete pressure pipe according to claim 9, characterized in that: The inner surface of the sealant (9) is coplanar with the inner wall of the metal pressing plate (3).