Fastening treatment device for water conservancy project maintenance

Abstract

The utility model discloses a hydraulic engineering maintenance fastening treatment device. Relates to the field of hydraulic engineering. When an existing glass fiber sleeve is used for grouting, the circle center of an underwater glass fiber sleeve and the circle center of a bridge pier cannot be located on the same straight line, the glass fiber sleeve deviates from the circle center of the bridge pier, the thickness of epoxy grouting is uniform, and the stress of a bridge body is uneven. The anti-deviation fastening device comprises a fastening anti-deviation processing assembly, the fastening anti-deviation processing assembly comprises an outer side arc plate, an inner side arc plate and a sealing plate, the end of the outer side arc plate and the end of the inner side arc plate are integrally connected with the sealing plate, the outer side arc plate and the inner side arc plate are of a parallel structure, the outer side arc plate and the inner side arc plate are concentric arc-shaped faces, and the outer side arc plate and the inner side arc plate are integrally connected. A grouting cavity is formed among the outer side arc plate, the inner side arc plate and the two sealing plates; by means of the structure, when the underwater glass fiber sleeves surround the bridge pier, the distances between the underwater glass fiber sleeves and the bridge pier are the same, and therefore it is guaranteed that the thicknesses of material bodies are the same after the bridge pier is reinforced. The fastening device is applied to the field of hydraulic engineering pier maintenance fastening treatment.

Description

Technical Field

[0001] The utility model relates to the field of water conservancy projects, in particular to a water conservancy project maintenance and fastening processing device. Background Art

[0002] Water conservancy project maintenance and fastening devices are equipment used for the maintenance of water conservancy project facilities. They are primarily used to reinforce various components within water conservancy projects. For example, the maintenance of bridge piers in water conservancy projects requires regular inspection of the pier surface for cracks, spalling, exposed rebar, and other conditions, recording their location, length, and width. If small cracks are present, their development should be continuously monitored. Attention should be paid to water erosion around the pier foundation. If excessive erosion poses a risk of foundation exposure, reinforcement measures such as riprap and dike construction should be promptly implemented. For piers exposed to frequent water level fluctuations, attention should be paid to damage caused by alternating dry and wet conditions, and appropriate waterproofing materials can be used for protection. Pier reinforcement in water conservancy projects is primarily due to structural aging. With age, pier concrete may carbonize and rebar may corrode, leading to a decline in structural performance. Reinforcement is required to restore or improve load-bearing capacity and durability. Furthermore, early design may include underestimation of loads, inappropriate structural calculations, or quality defects during construction. Subsequent reinforcement can address these deficiencies and ensure the proper functioning of the piers.

[0003] Currently, fiberglass sleeves are commonly used for the maintenance and fastening of bridge piers in water conservancy projects. Because fiberglass sleeves are water-insensitive, they can be installed directly underwater, eliminating the need for cofferdams and drainage systems. Furthermore, when used in conjunction with epoxy grouting, fiberglass sleeves form a tight bond, effectively repairing and reinforcing bridge columns. However, before epoxy grouting, the fiberglass sleeves can be placed off-center from the pier, resulting in uneven thickness of the epoxy grout and uneven stress distribution on the bridge. This can lead to uneven stress distribution when the reinforced structure is subjected to external forces such as vehicle loads, wind, and earthquakes. This deviation from the center causes the loads shared by each sleeve section to differ from those when installed concentrically. Some areas may experience excessive stress, exceeding their load-bearing capacity, reducing the overall reinforcement effectiveness and impacting the stability and safety of the structure. Furthermore, a caking effect can occur, affecting the bond strength to the pier surface. Utility Model Content

[0004] In order to solve the problem that the center of the underwater fiberglass sleeve and the center of the bridge pier cannot be aligned in a straight line during grouting of the existing fiberglass sleeve, the utility model causes the fiberglass sleeve to deviate from the center of the pier, resulting in uneven thickness of the epoxy grouting and uneven stress on the bridge body, and therefore provides a water conservancy project maintenance and fastening processing device.

[0005] The technical solution of the utility model is:

[0006] A water conservancy project maintenance and fastening device, comprising an underwater fiberglass sleeve, the underwater fiberglass sleeve being annularly arranged in the outer area of ​​a bridge pier, at least two layers of upper and lower fastening and anti-deviation treatment components being installed between the underwater fiberglass sleeve and the bridge pier, each fastening and anti-deviation treatment component being composed of modular splicing, the fastening and anti-deviation treatment components being annularly arranged to match the outer annular surface of the bridge pier;

[0007] Each of the fastening anti-deflection processing components includes an outer arc plate, an inner arc plate and a sealing plate, the ends of the outer arc plate and the inner arc plate are integrally connected to the sealing plate, the outer arc plate and the inner arc plate are parallel to each other, and the outer arc plate and the inner arc plate are concentric arc surfaces;

[0008] A grouting cavity is formed between the outer arc plate, the inner arc plate and the two sealing plates. The top and bottom of the grouting cavity are through structures, and the grouting cavity is surrounded by a closed arc-shaped cavity structure. A group of grouting cavities are arranged in a ring structure between the underwater fiberglass sleeve and the bridge pier. Through the group of grouting cavities, the area of ​​the grouting space between the underwater fiberglass sleeve and the bridge pier is made the same.

[0009] Furthermore, the two sealing plates on each of the fastening and anti-deviation processing components are rectangular plate structures, and the two sealing plates on each of the fastening and anti-deviation processing components are arranged in a vertical structure;

[0010] At least two connecting holes are opened on the plate surface of the sealing plate in the horizontal or vertical direction, and a bolt assembly is inserted into the connecting hole. The bolt assembly consists of a group of screws and nuts of the same size. A group of fastening anti-deviation processing components are connected through the bolt assembly.

[0011] Furthermore, a set of fastening anti-deviation processing components are fixedly connected head to tail through a bolt assembly between the sealing plates on two adjacent fastening anti-deviation processing components to form an annular structure with a set of grouting cavities.

[0012] Furthermore, the length of the outer arc plate on the fastening anti-deflection processing component is greater than the length of the inner arc plate;

[0013] The outer curved surface of the outer curved plate on the fastening anti-deviation processing component is fitted with the inner cylindrical surface of the underwater fiberglass sleeve, and the inner curved surface of the inner curved plate on the fastening anti-deviation processing component is fitted with the surface of the bridge pier.

[0014] Furthermore, the inner curved surface of the inner arc plate on the fastening anti-deviation processing component is provided with a rubber strip, one end of the rubber strip is fixedly connected to the plate surface of the inner arc plate, and the other end of the rubber strip is fitted with the surface of the pier, thereby increasing the friction between the inner arc plate and the pier.

[0015] Furthermore, a group of the fastening and anti-deviation processing components comprises at least four fastening and anti-deviation processing components, and each fastening and anti-deviation processing component has the same structure;

[0016] A set of fastening and anti-deviation treatment components are enclosed by an underwater fiberglass sleeve. The enclosed underwater fiberglass sleeve has a ring structure, and the outer tube surface of the underwater fiberglass sleeve is wrapped with an adjustable canvas strap. The underwater fiberglass sleeve and the set of fastening and anti-deviation treatment components are fixedly connected by the adjustable canvas strap, so that a set of fastening and anti-deviation treatment components, the underwater fiberglass sleeve and the bridge pier form an integrated structure.

[0017] Furthermore, as the length of the bridge pier increases, the number of fastening and anti-deviation treatment components is increased, wherein the grouting cavity on the topmost fastening and anti-deviation treatment component serves as the grouting inlet, and the epoxy grouting material is poured into the grouting cavity from the top, so that the grouting cavity is filled between the underwater fiberglass sleeve and the bridge pier.

[0018] Furthermore, the bridge pier is a cylindrical bridge pier or an elliptical bridge pier;

[0019] The structures of the bridge piers are different, and the lengths of the outer arc plates and the inner arc plates of the fastening anti-deviation treatment components used are different.

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

[0021] When the epoxy grouting material is poured into the cracks of the bridge pier according to the utility model, it is necessary to align the connection holes on the sealing plate of the fastening anti-deviation treatment component with the hole positions of the connection holes on the sealing plate of the adjacent fastening anti-deviation treatment component, and tighten and lock them by the bolt assembly. After locking, the two fastening anti-deviation treatment components form a semicircular structure. Similarly, the above-mentioned method is adopted to connect the four fastening anti-deviation treatment components with the same structure end to end. The fastening anti-deviation treatment components after connection are fixed on the surface of the bridge pier. According to the different cross-sections of the bridge pier, fastening anti-deviation treatment components of different sizes are selected. By installing the fastening anti-deviation treatment components on the bridge pier, the underwater fiberglass sleeve can enclose the bridge pier so that the distance between the underwater fiberglass sleeve and the bridge pier is the same, thereby ensuring that the thickness of the material body after the bridge pier reinforcement is the same.

[0022] The utility model installs at least upper and lower fastening and anti-deviation treatment components on the surface of the pier. After the installation is completed, an underwater fiberglass sleeve is laid on the outside of the structure composed of a group of fastening and anti-deviation treatment components. The underwater fiberglass sleeve completely encloses the sides of the fastening and anti-deviation treatment components, so that there is a certain distance between the underwater fiberglass sleeve and the pier. The area of ​​this distance is the grouting area. After the underwater fiberglass sleeve is installed, the underwater fiberglass sleeve is tied tightly by an adjustable canvas strap, and epoxy grouting material is poured into the grouting cavity on the topmost fastening and anti-deviation treatment component to make the epoxy grouting material fill the grouting area between the underwater fiberglass sleeve and the pier. After the epoxy grouting material is cooled, the fastening and anti-deviation treatment component is fixed to the pier through the solidified epoxy grouting material. The fastening and anti-deviation treatment components are all metal structures, which increases the overall strength of the pier.

[0023] Prior to epoxy grouting, the utility model installs a fastening anti-deviation treatment component on the bridge pier, so that the underwater fiberglass sleeve and the bridge pier are close to the same center during grouting. This ensures a uniform thickness of the epoxy grouting on the pier, evenly distributes stress on the bridge body, and avoids uneven stress distribution when the reinforced structure is subjected to external forces such as vehicle loads, wind, and earthquakes. Deviation from the center of the circle causes the load shared by each part of the sleeve to be different from that in an ideal concentric installation. Some areas may be subjected to excessive stress, exceeding their load-bearing capacity, thereby reducing the overall reinforcement effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of the utility model;

[0025] Figure 2 yes Figure 1 AA section view in;

[0026] Figure 3 yes Figure 1 A partial enlarged view of B in the middle;

[0027] Figure 4 It is a schematic diagram of the structure of a single fastening anti-deviation processing component;

[0028] Figure 5 This is a front view of the fastening anti-deflection treatment component;

[0029] Figure 6 is a side view of the fastening anti-deflection processing component;

[0030] Figure 7 This is a schematic diagram of installation when the cross section of the pier is elliptical;

[0031] In the figure: 1. Underwater fiberglass sleeve, 2. Bridge pier, 3. Fastening anti-deviation treatment component, 4. Bolt assembly, 5. Rubber strip, 6. Adjustable canvas strap, 7. Epoxy grouting material, 31. Outer arc plate, 32. Inner arc plate, 33. Sealing plate, 34. Grouting cavity, 35. Connection hole. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0033] Specific implementation method 1: Combination Figure 1 — Figure 3 This embodiment describes a water conservancy project maintenance and fastening device, which includes an underwater fiberglass sleeve 1, which is annularly arranged in the outer area of ​​a pier 2. At least two layers of fastening and anti-deviation processing components 3 are installed between the underwater fiberglass sleeve 1 and the pier 2. Each fastening and anti-deviation processing component 3 is composed of modular splicing. The fastening and anti-deviation processing components 3 are annularly arranged and match the outer annular surface of the pier 2.

[0034] Each of the fastening anti-deflection processing components 3 includes an outer arc plate 31, an inner arc plate 32 and a sealing plate 33. The ends of the outer arc plate 31 and the inner arc plate 32 are integrally connected to the sealing plate 33. The outer arc plate 31 and the inner arc plate 32 are parallel to each other and are concentric arc surfaces.

[0035] A grouting cavity 34 is formed between the outer arc plate 31, the inner arc plate 32 and the two sealing plates 33. The top and bottom of the grouting cavity 34 are through structures, and the grouting cavity 34 is surrounded by a closed arc-shaped cavity structure. A group of grouting cavities 34 are annular structures and are arranged between the underwater fiberglass sleeve 1 and the bridge pier 2. Through the group of grouting cavities 34, the area of ​​the grouting space between the underwater fiberglass sleeve 1 and the bridge pier 2 is the same.

[0036] The epoxy grouting material is poured from the top grouting cavity 34, and falls to the bottom of the underwater fiberglass sleeve by gravity. Then the underwater fiberglass sleeve is filled from bottom to top in the area between the underwater fiberglass sleeve 1 and the pier 2, so that the solidified epoxy grouting material 7 and the pier 2 form a whole, thereby increasing the thickness of the pier.

[0037] Specific implementation method 2: Combination Figure 4 — Figure 6 This embodiment describes a water conservancy project maintenance and fastening processing device in which the two sealing plates 33 on each of the fastening and anti-deviation processing components 3 are rectangular plate structures, and the two sealing plates 33 on each of the fastening and anti-deviation processing components 3 are arranged in a vertical structure;

[0038] At least two connecting holes 35 are opened on the plate surface of the sealing plate 33 in the horizontal or vertical direction, and a bolt assembly 4 is inserted into the connecting hole 35. The bolt assembly 4 is composed of a group of screws and nuts of the same size. A group of fastening anti-deviation processing components 3 are connected through the bolt assembly 4.

[0039] The connection holes 35 on the sealing plates 33 have the same aperture, and the connection holes 35 are circular hole structures. When two adjacent fastening and anti-deviation processing components 3 are connected, the sealing plates 33 on the two adjacent fastening and anti-deviation processing components 3 are fitted together, and the connection holes 35 on the fitted sealing plates 33 are aligned. After alignment, the screw rod of the bolt assembly 4 is inserted from the connection hole 35 and fixed by a nut, thereby fixing the two adjacent fastening and anti-deviation processing components 3. A group of fastening and anti-deviation processing components 3 are fixedly connected in the above manner to form an annular structure set on the pier 2, so that the fastening and anti-deviation processing components 3 are perpendicular to the pier 2.

[0040] Specific implementation method three: Combination Figure 4 — Figure 6 To illustrate this embodiment, a water conservancy project maintenance and fastening treatment device according to this embodiment is provided, in which a group of fastening and anti-deviation treatment components 3 are fixedly connected head to tail by a bolt assembly 4 between the sealing plates 33 on two adjacent fastening and anti-deviation treatment components 3 to form an annular structure with a group of grouting cavities 34.

[0041] The fastening and anti-deviation processing components 3 are at least four fastening and anti-deviation processing components 3, and the diameter of the annular structure composed of the inner arc plates on the four fastening and anti-deviation processing components 3 is almost the same as the outer diameter of the pier, so that the fastening and anti-deviation processing components 3 are fixed near the top and near the bottom of the pier 2, and the two layers of fastening and anti-deviation processing components 3 are fixedly installed.

[0042] Specific implementation method four: Combination Figure 4 — Figure 6 This embodiment describes a water conservancy project maintenance and fastening device. The length of the outer arc plate 31 on the fastening and anti-deviation processing component 3 is greater than the length of the inner arc plate 32.

[0043] The outer arc surface of the outer arc plate 31 on the fastening anti-deviation processing component 3 is in contact with the inner cylinder surface of the underwater fiberglass sleeve 1 , and the inner arc surface of the inner arc plate 32 on the fastening anti-deviation processing component 3 is in contact with the surface of the pier 2 .

[0044] The outer arc plate 31, the inner arc plate 32 and the sealing plate 33 of the fastening anti-deviation processing component 3 are an integrated casting structure, and the integrated structure is a fan-shaped structure with a grouting cavity 34. Through this structure, the fastening anti-deviation processing component 3 can be modularized, and the number of fastening anti-deviation processing components 3 can be appropriately increased according to different needs, which makes it more flexible to use and more convenient to transport.

[0045] Specific implementation method five: Combination Figure 4 — Figure 6 The present embodiment is described as a water conservancy project maintenance and fastening device. The inner curved surface of the inner arc plate 32 on the fastening and anti-deviation processing component 3 is provided with a rubber strip 5. One end of the rubber strip 5 is fixedly connected to the plate surface of the inner arc plate 32, and the other end of the rubber strip 5 is in contact with the surface of the pier 2, thereby increasing the friction between the inner arc plate 32 and the pier 2.

[0046] The rubber strip 5 has the same curvature as the inner arc plate 32 of the fastening anti-deviation processing component 3. According to different needs, a rubber strip 5 is added to the inner arc plate 32 of the fastening anti-deviation processing component 3. The rubber strip 5 is made of rubber. When the inner arc plate 32 of the fastening anti-deviation processing component 3 is fitted with the surface of the pier 2, by arranging the rubber strip on the inner arc plate 32 of the fastening anti-deviation processing component 3, the friction between the fastening anti-deviation processing component 3 and the pier 2 can be increased, thereby increasing the stability of the fastening anti-deviation processing component 3.

[0047] Specific implementation method six: combination Figure 4 — Figure 6 This embodiment describes a water conservancy project maintenance and fastening processing device in which a group of fastening and anti-deviation processing components 3 comprises at least four fastening and anti-deviation processing components 3, and each fastening and anti-deviation processing component 3 has the same structure;

[0048] A set of fastening and anti-deviation processing components 3 are enclosed by an underwater fiberglass sleeve 1. The enclosed underwater fiberglass sleeve 1 has a ring structure, and the outer tube surface of the underwater fiberglass sleeve 1 is wrapped with an adjustable canvas strap 6. The underwater fiberglass sleeve 1 and the set of fastening and anti-deviation processing components 3 are fixedly connected by the adjustable canvas strap 6, so that a set of fastening and anti-deviation processing components 3, the underwater fiberglass sleeve 1 and the bridge pier 2 form an integrated structure.

[0049] When the fastening and anti-deviation treatment component 3 is fixed on the surface of the pier 2, the underwater fiberglass sleeve 1 is wrapped around the outside of the fastening and anti-deviation treatment component 3. The underwater fiberglass sleeve 1 after being wrapped is made into a cylindrical structure through the upper and lower layers of the fastening and anti-deviation treatment component 3. Due to the limiting effect of the fastening and anti-deviation treatment component, the area formed between the underwater fiberglass sleeve 1 and the pier 2 after being wrapped can be made the same, thereby ensuring the same thickness of the epoxy grouting material 7 and ensuring the uniform thickness of the pier 2.

[0050] Specific implementation method seven: combination Figure 4 — Figure 6The present embodiment is described as a water conservancy project maintenance and fastening treatment device. As the length of the pier 2 increases, the number of fastening and anti-deviation treatment components 3 is increased, wherein the grouting cavity 34 on the topmost fastening and anti-deviation treatment component 3 is the grouting inlet, and the epoxy grouting material is poured into the grouting cavity 34 at the top, so that the grouting cavity 34 is filled between the underwater fiberglass sleeve 1 and the pier 2.

[0051] The epoxy grouting material 7 is poured into the grouting cavity 34 of the upper fastening and anti-deviation treatment component 3. After the epoxy grouting material 7 fills the space between the underwater fiberglass sleeve 1 and the bridge pier 2, the epoxy grouting material 7 is solidified. The solidified epoxy grouting material 7 solidifies the fastening and anti-deviation treatment component 3 and the bridge pier 2 into an integrated structure.

[0052] Specific implementation method eight: combination Figure 1 — Figure 7 The present embodiment is described as a water conservancy project maintenance and fastening device. The pier 2 is a cylindrical pier or an elliptical pier. The structure of the pier 2 is different, and the lengths of the outer arc plate 31 and the inner arc plate 32 of the fastening and anti-deviation processing component 3 used are different.

[0053] Working principle:

[0054] A comprehensive inspection and assessment of the bridge pier 2 is conducted to determine the location, scope, and degree of reinforcement required. The original structural information and damage status of the bridge are also recorded to provide a basis for subsequent design and construction. According to the design requirements, underwater fiberglass sleeves 1 of appropriate specifications and performance, as well as the matching epoxy grouting material 7, are prepared. The surface of the bridge pier structure that needs reinforcement is cleaned to remove impurities such as oil, dust, laitance, and loose layers, so that the concrete surface is clean and smooth. High-pressure water guns, brooms, grinding wheels, and other tools can be used for cleaning. For cracks wider than 0.2 mm, pressure injection is required to inject materials such as epoxy grouting material 7 into the cracks to fill the cracks and improve the integrity of the structure.

[0055] When the epoxy grouting material 7 is poured into the crack of the bridge pier, it is necessary to align the connection hole 35 on the sealing plate 33 of the fastening anti-deviation treatment component 3 with the hole position of the connection hole 35 of the sealing plate 33 on the adjacent fastening anti-deviation treatment component 3, and tighten and lock it through the bolt component 4. After locking, the two fastening anti-deviation treatment components 3 form a semicircular structure. Similarly, the above-mentioned method is used to connect the four fastening anti-deviation treatment components 3 with each other end to end. The fastening anti-deviation treatment components 3 after connection are fixed on the surface of the bridge pier 2. At least the upper and lower fastening anti-deviation treatment components 3 are installed on the surface of the bridge pier 2. After the installation is completed, underwater fiberglass is laid on the outside of the structure composed of a group of fastening anti-deviation treatment components 3. Sleeve 1, the underwater fiberglass sleeve 1 completely encloses the side of the fastening anti-deviation treatment component 3, so that there is a certain distance between the underwater fiberglass sleeve 1 and the bridge pier 2. The area of ​​this distance is the grouting area. After the underwater fiberglass sleeve 1 is installed, the underwater fiberglass sleeve 1 is tied tightly by the adjustable canvas strap 6, and the epoxy grouting material 7 is poured into the grouting cavity 34 on the topmost fastening anti-deviation treatment component 3, so that the epoxy grouting material 7 fills the grouting area between the underwater fiberglass sleeve 1 and the bridge pier 2. After the epoxy grouting material 7 is cooled, the fastening anti-deviation treatment component 1 is fixed to the bridge pier through the solidified epoxy grouting material 7. By setting up this structure, the thickness of the grouting on the periphery of the bridge pier can be guaranteed to be the same during grouting.

[0056] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of the technical content disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent replacement and improvement of the above embodiments made according to the technical essence of the present invention, within the spirit and principles of the present invention, without departing from the content of the technical solution of the present invention, shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A water conservancy project maintenance and fastening device, comprising an underwater glass fiber sleeve (1), wherein the underwater glass fiber sleeve (1) is annularly arranged in the outer area of ​​a pier (2), and is characterized in that: At least two layers of upper and lower fastening and anti-deviation processing components (3) are installed between the underwater glass fiber sleeve (1) and the bridge pier (2), each fastening and anti-deviation processing component (3) is composed of modular splicing, and the fastening and anti-deviation processing component (3) is annular in structure and matches the outer pier annular surface of the bridge pier (2); Each of the fastening anti-deflection processing components (3) comprises an outer arc plate (31), an inner arc plate (32) and a sealing plate (33), the ends of the outer arc plate (31) and the inner arc plate (32) are integrally connected to the sealing plate (33), the outer arc plate (31) and the inner arc plate (32) are in a parallel structure, and the outer arc plate (31) and the inner arc plate (32) are concentric arc surfaces; A grouting cavity (34) is formed between the outer arc plate (31), the inner arc plate (32) and the two sealing plates (33). The top and bottom of the grouting cavity (34) are through-structures, and the surrounding of the grouting cavity (34) is a closed arc-shaped cavity structure. A group of grouting cavities (34) is arranged in an annular structure between the underwater glass fiber sleeve (1) and the bridge pier (2). The group of grouting cavities (34) makes the area of ​​the grouting space between the underwater glass fiber sleeve (1) and the bridge pier (2) the same.

2. The water conservancy project maintenance and fastening device according to claim 1, characterized in that: The two sealing plates (33) on each of the fastening anti-deviation processing components (3) are rectangular plate structures, and the two sealing plates (33) on each of the fastening anti-deviation processing components (3) are arranged in a vertical structure; At least two connection holes (35) are provided on the plate surface of the sealing plate (33) in the transverse or longitudinal direction. Bolt assemblies (4) are inserted into the connection holes (35). The bolt assemblies (4) are composed of a group of screws and nuts of the same size. A group of fastening anti-deviation processing assemblies (3) are connected through the bolt assemblies (4).

3. The water conservancy project maintenance and fastening device according to claim 2, characterized in that: A set of fastening anti-deviation processing components (3) is fixedly connected head to tail via a bolt assembly (4) between the sealing plates (33) on two adjacent fastening anti-deviation processing components (3) to form an annular structure with a set of grouting cavities (34).

4. The water conservancy project maintenance and fastening device according to claim 3, characterized in that: The length of the outer arc plate (31) on the fastening anti-deflection processing component (3) is greater than the length of the inner arc plate (32); The outer arc surface of the outer arc plate (31) on the fastening anti-deviation processing component (3) is in contact with the inner cylinder surface of the underwater fiberglass sleeve (1), and the inner arc surface of the inner arc plate (32) on the fastening anti-deviation processing component (3) is in contact with the surface of the bridge pier (2).

5. The water conservancy project maintenance and fastening device according to claim 4, characterized in that: The inner curved surface of the inner curved plate (32) on the fastening anti-deviation processing component (3) is provided with a rubber strip (5), one end of the rubber strip (5) is fixedly connected to the plate surface of the inner curved plate (32), and the other end of the rubber strip (5) is in contact with the surface of the bridge pier (2), thereby increasing the friction between the inner curved plate (32) and the bridge pier (2).

6. The water conservancy project maintenance and fastening device according to claim 5, characterized in that: A group of the fastening and anti-deviation processing components (3) comprises at least four fastening and anti-deviation processing components (3), and each fastening and anti-deviation processing component (3) has the same structure; A set of fastening and anti-deviation processing components (3) are enclosed by an underwater glass fiber sleeve (1); the enclosed underwater glass fiber sleeve (1) presents a ring-shaped structure; and an outer tube surface of the underwater glass fiber sleeve (1) is wound with an adjustable canvas strap (6); the underwater glass fiber sleeve (1) and the set of fastening and anti-deviation processing components (3) are fixedly connected by the adjustable canvas strap (6), so that the set of fastening and anti-deviation processing components (3), the underwater glass fiber sleeve (1) and the bridge pier (2) form an integrated structure.

7. The water conservancy project maintenance and fastening device according to claim 1, characterized in that: As the length of the bridge pier (2) increases, the number of fastening and anti-deviation treatment components (3) increases, wherein the grouting cavity (34) on the topmost fastening and anti-deviation treatment component (3) serves as a grouting inlet, and epoxy grouting material (7) is poured into the top grouting cavity (34) so ​​that the grouting cavity (34) is fully distributed between the underwater fiberglass sleeve (1) and the bridge pier (2).

8. The water conservancy project maintenance and fastening device according to claim 7, characterized in that: The bridge pier (2) is a columnar bridge pier or an elliptical bridge pier.

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