A water transportation wharf pile repairing and reinforcing device and a reinforcing method

Abstract

The application discloses a kind of water transport wharf pile repair reinforcing device and reinforcing method, device includes: inner cylinder, it is surrounded in the outer periphery of pile, and it is formed with filling space between inner cylinder and pile;Inner cylinder is made of first inner half cylinder and second inner half cylinder and is spliced together;Reinforcing mesh frame is installed in the outer peripheral wall of inner cylinder;Outer cylinder, it is surrounded in the outer periphery of inner cylinder and reinforcing mesh frame, and it is formed with pouring space of accommodating reinforcing mesh frame between outer cylinder and inner cylinder, and outer cylinder is made of first outer half cylinder and second outer half cylinder and is spliced together.The application directly installs reinforcing mesh frame in the outer peripheral wall of inner cylinder, so that the installation position of reinforcing mesh frame is more accurate and stable, reduces the assembly difficulty of outer cylinder, guarantees the installation accuracy of reinforcing mesh frame, provides guarantee for the quality of subsequent pouring reinforcement, can effectively repair the concrete surface layer peeling, cracking, reinforcing steel corrosion and other diseases of pile, restores and improves the bearing capacity of pile.

Description

Technical Field

[0001] This invention relates to the field of pile repair technology for waterway wharves, and in particular, to a pile repair and reinforcement device and method for waterway wharves. Background Technology

[0002] As core vertical load-bearing components in infrastructure such as waterway terminals, bridges, and municipal engineering projects, piles are prone to problems during long-term service, especially under harsh conditions like those at waterway terminals. These problems include concrete surface spalling, cracking, steel reinforcement corrosion, pile cross-section damage, and decreased bearing capacity. If these pile damages are not repaired and reinforced in a timely manner, they will continue to deteriorate the structural integrity and mechanical properties of the pile, reducing its overall bearing capacity, impermeability, and durability, thereby threatening the overall structural safety and long-term stability of the superstructure.

[0003] Currently, most existing pile repair and reinforcement construction schemes adopt the reinforcement method of external concrete wrapping. This usually involves setting a sleeve on the outside of the pile, laying steel bars inside the sleeve, and then grouting. However, this reinforcement method is not convenient for precise steel bar laying, the steel bar installation and load-bearing are unstable, it is easy to cause interference to the sleeve installation, and the assembly is difficult. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a device and method for repairing and reinforcing piles at water transport wharves.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A device for repairing and reinforcing piles at a water transport terminal includes: an inner cylinder surrounding the outer periphery of the pile, with a filling space formed between the inner cylinder and the pile; the inner cylinder is formed by assembling a first inner half-cylinder and a second inner half-cylinder; a steel mesh frame installed on the outer periphery of the inner cylinder; and an outer cylinder surrounding the inner cylinder and the steel mesh frame, with a pouring space formed between the outer cylinder and the inner cylinder to accommodate the steel mesh frame, the outer cylinder being formed by assembling a first outer half-cylinder and a second outer half-cylinder; wherein the peripheral walls of both the first and second inner half-cylinders are provided with grouting holes, allowing the filling space and the pouring space to communicate through the grouting holes.

[0006] Furthermore, the steel reinforcement mesh is composed of two semi-circular steel reinforcement skeletons spliced ​​together, and the two semi-circular steel reinforcement skeletons are connected and fixed; the two semi-circular steel reinforcement skeletons are respectively installed in the first inner half cylinder and the second inner half cylinder.

[0007] Furthermore, the semicircular steel reinforcement skeleton includes arc steel bars and vertical steel bars. Multiple arc steel bars are arranged vertically, and multiple vertical steel bars are arranged in a ring. The vertical steel bars connect all the arc steel bars on the same semicircular steel reinforcement skeleton in series. Multiple support blocks are arranged around the outer peripheral walls of the first inner half cylinder and the second inner half cylinder. The support blocks are provided with support grooves with openings at the top for arc steel bars of corresponding height to be embedded.

[0008] Furthermore, the arc-shaped steel bar has transversely extending extension sections at both ends, and the arc-shaped steel bars on the two semi-circular steel bar skeletons on the same steel bar mesh are staggered in the height direction, and the extension sections are used to connect with the other semi-circular steel bar skeleton.

[0009] Furthermore, the inner cylinder, the steel mesh frame, and the outer cylinder are arranged vertically, and two vertically adjacent inner cylinders are stacked, two vertically adjacent outer cylinders are stacked, and the vertical steel bars on two vertically adjacent steel mesh frames are connected by steel bar sleeves.

[0010] Furthermore, the outer peripheral walls of the first inner half-cylinder and the second inner half-cylinder are each provided with at least one set of positioning strips. Two positioning strips in the same set are spaced apart circumferentially, and there is a gap between the two positioning strips in the same set for the corresponding vertical reinforcing bars to be embedded.

[0011] Furthermore, the upper end of the support groove is provided with an inclined guide surface on the side near the inner cylinder.

[0012] Furthermore, the first inner half-cylinder has outwardly extending first connecting blocks on both sides of its upper end; the second inner half-cylinder has outwardly extending second connecting blocks on both sides of its upper end; the first outer half-cylinder has inwardly extending third connecting blocks on both sides of its upper end; and the second outer half-cylinder has inwardly extending fourth connecting blocks on both sides of its upper end. The first connecting blocks, second connecting blocks, third connecting blocks, and fourth connecting blocks have corresponding holes for connection and fixation by fasteners.

[0013] Furthermore, the lower ends of the first inner half-cylinder are provided with outwardly extending first overlapping structures on both sides; the lower ends of the second inner half-cylinder are provided with outwardly extending second overlapping structures on both sides; the lower ends of the first outer half-cylinder are provided with inwardly extending third overlapping structures on both sides; the lower ends of the second outer half-cylinder are provided with inwardly extending fourth overlapping structures on both sides; the first overlapping structure includes a first base block and a second support block connected to the upper end of the first base block and extending toward the second overlapping structure; the second overlapping structure is provided with a second groove for the second support block to be inserted into; the second support block is inserted into the second groove and its bottom is in contact with the bottom wall of the second groove; the outer end of the second support block is provided with a downwardly extending first hook block; the second... The overlapping structure is sandwiched between the first hook block and the first base block; the first overlapping structure and the second overlapping structure are respectively provided with a first through hole and a second through hole that pass through laterally; the fourth overlapping structure includes a fourth base block and a through block, one end of the through block is connected to the fourth base block, and the other end passes through the first through hole and the second through hole; the end of the through block away from the fourth base block is provided with a second hook block that extends downward, and the second hook block is in contact with the side of the first base block; the third overlapping structure includes a third base block and an extension block, one end of the extension block is connected to the third base block, and the other end extends toward the fourth overlapping structure; the through block is provided with a vertical hole, and the extension block is provided with a limiting block that extends downward and is embedded in the vertical hole.

[0014] This invention also provides a method for repairing and reinforcing piles, comprising the following steps: roughening the outer periphery of the pile; assembling a first inner half-cylinder and a second inner half-cylinder around the outer periphery of the pile to form an inner cylinder, wherein a filling space is formed between the inner cylinder and the pile; installing a steel mesh frame around the outer periphery of the inner cylinder; assembling a first outer half-cylinder and a second outer half-cylinder around the outer periphery of the inner cylinder and the steel mesh frame to form an outer cylinder, wherein a casting space for accommodating the steel mesh frame is formed between the outer cylinder and the inner cylinder, wherein the peripheral walls of the first and second inner half-cylinders are provided with grouting holes, so that the filling space and the casting space are connected through the grouting holes; pouring filling material into the casting space, wherein part of the filling material enters the filling space through the grouting holes.

[0015] The present invention has the following beneficial effects: The inner cylinder of this device is composed of a first inner half-cylinder and a second inner half-cylinder, and the outer cylinder is composed of a first outer half-cylinder and a second outer half-cylinder. Compared with the integral sleeve, the modular structure can be flexibly disassembled and assembled, facilitating on-site transportation and assembly. It can be quickly installed around the perimeter of the pile column, reducing the difficulty of on-site construction. Secondly, the steel mesh is directly installed on the outer wall of the inner cylinder, so that the steel mesh has a corresponding installation positioning structure (inner cylinder). The installation position of the steel mesh is more precise and stable, effectively avoiding the problem of steel bar position displacement and shaking before pouring. At the same time, it eliminates the interference of steel bars on the installation of the outer cylinder, reduces the assembly difficulty of the outer cylinder, ensures the installation accuracy of the steel mesh, and provides a guarantee for the quality of subsequent pouring and reinforcement. Furthermore, a filling space is formed between the inner cylinder and the pile, and a casting space for the reinforcing steel mesh is formed between the outer cylinder and the inner cylinder. Both the first and second inner cylinders have grouting holes on their peripheral walls, allowing the filling space and the casting space to communicate through these holes. This enables grout exchange between the two spaces, allowing the grout to flow freely and fully fill the filling space during grouting. This ensures the filling space is fully filled, reducing cavities and hollow areas, and guaranteeing a tight connection between the pile surface and the external reinforcement device. Through the coordinated operation of the inner cylinder, the reinforcing steel mesh, and the outer cylinder, and the grout exchange achieved through the grouting holes, the pile, inner cylinder, reinforcing steel mesh, and outer cylinder form an integrated load-bearing system. This effectively improves the overall structural strength, impermeability, and durability of the repaired and reinforced pile, effectively repairing defects such as concrete surface spalling, cracking, and steel corrosion, restoring and enhancing the pile's bearing capacity.

[0016] In addition to the objectives, features, and advantages described above, the present invention has other objectives, features, and advantages. The invention will now be described in further detail with reference to the figures. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a structural schematic diagram of the construction state of one embodiment of the present invention; Figure 2 yes Figure 1 A schematic diagram of the decomposition state; Figure 3 This is a schematic diagram of the connection structure according to one embodiment of the present invention; Figure 4 yes Figure 3 A schematic diagram of the decomposed state structure; Figure 5 yes Figure 3 A sectional perspective view; Figure 6 yes Figure 5 Enlarged view of point A; Figure 7 yes Figure 5 Enlarged view of point B; Figure 8 This is a partial cross-sectional view of an exploded state according to one embodiment of the present invention; Figure 9 This is a schematic diagram of the connection structure between the inner cylinder and the steel mesh frame; Figure 10 It is an exploded diagram of the inner cylinder, the steel mesh frame, and the outer cylinder.

[0018] Legend: Inner cylinder 100, pile column 101, grouting hole 102, first inner half cylinder 110, first connecting block 1110, first support block 1111, first overlapping structure 1120, second support block 1121, first hook block 1122, first through hole 1123, first base block 1124; second inner half cylinder 120, second connecting block 1210, first groove 1211, second overlapping structure 1220, second groove 1221, second through hole 1222, support block 130, support groove 131, inclined guide surface 132, positioning strip 140; 200 steel mesh frame, 210 semi-circular steel cage, 211 arc steel bar, 212 vertical steel bar, 213 extension section, 220 steel sleeve; Outer cylinder 300, casting space 301, first outer half cylinder 310, third connecting block 3110, third overlapping structure 3120, extension block 3121, limiting block 3122, third base block 3123, second outer half cylinder 320, fourth connecting block 3210, fourth overlapping structure 3220, through block 3221, second hook block 3222, vertical hole 3223, fourth base block 3224. Detailed Implementation

[0019] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0022] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0023] Please refer to Figure 1 , Figure 2 and Figure 3 A preferred embodiment of the present invention provides a waterway wharf pile repair and reinforcement device, comprising an inner cylinder 100, a steel mesh frame 200, and an outer cylinder 300.

[0024] An inner cylinder 100 surrounds the outer periphery of the pile 101, forming a filling space between the inner cylinder 100 and the pile 101; the inner cylinder 100 is formed by assembling a first inner half-cylinder 110 and a second inner half-cylinder 120. In this embodiment, the inner cylinder 100 may be made of UHPC material.

[0025] The steel mesh frame 200 is installed on the outer circumferential wall of the inner cylinder 100.

[0026] An outer cylinder 300 surrounds the inner cylinder 100 and the steel mesh 200. A casting space 301 for accommodating the steel mesh 200 is formed between the outer cylinder 300 and the inner cylinder 100. The outer cylinder 300 is composed of a first outer half cylinder 310 and a second outer half cylinder 320. The walls of the first inner half cylinder 110 and the second inner half cylinder 120 are provided with grout passage holes 102, so that the filling space and the casting space 301 are connected through the grout passage holes 102.

[0027] The inner cylinder 100 of this device is composed of a first inner half-cylinder 110 and a second inner half-cylinder 120, and the outer cylinder 300 is composed of a first outer half-cylinder 310 and a second outer half-cylinder 320. Compared with the integral sleeve, the modular structure can be flexibly disassembled and assembled, which is convenient for on-site transportation and assembly. During installation, the inner cylinder 100 and the outer cylinder 300 do not need to be fitted as a whole. The first inner half-cylinder 110, the second inner half-cylinder 120, the first outer half-cylinder 310, and the second outer half-cylinder 320 can be spliced ​​from the side of the pile column, which effectively avoids the difficulty of not being able to be directly fitted due to the non-open structure at both ends of the pile column, improves the convenience of on-site construction, and reduces the construction difficulty. The steel mesh frame 200 is directly installed on the outer circumferential wall of the inner cylinder 100, providing a corresponding installation and positioning structure. In traditional methods, the steel bars are supported by the bottom bearing surface, which is uneven and prone to sinking under pressure, making the steel mesh frame unstable during installation. However, the inner cylinder of this application provides a corresponding installation and positioning structure for the steel mesh frame, making the installation position of the steel mesh frame 200 more precise and stable. This effectively avoids the problem of steel bar position shifting and shaking before pouring, while eliminating interference of the steel bars with the installation of the outer cylinder 300, reducing the assembly difficulty of the outer cylinder 300, ensuring the installation accuracy of the steel mesh frame 200, and providing a guarantee for the quality of subsequent pouring and reinforcement. In addition, a filling space is formed between the inner cylinder 100 and the pile column 101, and a pouring space 301 for accommodating the steel mesh 200 is formed between the outer cylinder 300 and the inner cylinder 100. Furthermore, grouting holes 102 are provided on the periphery of the first inner half cylinder 110 and the second inner half cylinder 120, so that the filling space and the pouring space 301 are connected through the grouting holes 102, realizing the grout exchange between the filling space and the pouring space 301. During the grouting process, the grout can flow freely and fully fill the two spaces through the grouting holes 102, ensuring that the grout in the filling space is fully filled, reducing the occurrence of cavities and hollows, and ensuring a tight connection between the pile surface and the external reinforcement device. By filling and reinforcing materials (such as ultra-high performance concrete UHPC) into the filling space and pouring space 301, the pile column 101, inner cylinder 100, steel mesh frame 200 and outer cylinder 300 are poured to form an integrated load-bearing system, which effectively improves the overall structural strength, impermeability and durability of the pile column after repair and reinforcement. It can effectively repair the defects such as concrete surface peeling, cracking and steel corrosion of the pile column 101, and restore and improve the bearing capacity of the pile column 101.

[0028] Understandably, to improve the stability of the splicing of the first inner half-cylinder 110 and the second inner half-cylinder 120, shear keys can be provided on their mating surfaces. These shear keys can be concave-convex structures on the mating surfaces of the first inner half-cylinder 110 and the second inner half-cylinder 120, thereby achieving a concave-convex fit on the mating surfaces. For example, a groove can be provided on the mating surface of the first inner half-cylinder 110, and a protrusion that can be embedded in the groove can be provided on the mating surface of the second inner half-cylinder 120. This ensures that the mating surfaces are no longer solely subjected to frictional forces; shear force can be transmitted through the concave-convex fit structure, improving shear bearing capacity and preventing relative slippage between the two. It is also understandable that shear key structures can be provided on the mating surfaces of the first outer half-cylinder 310 and the second outer half-cylinder 320.

[0029] In some embodiments, the outer cylinder may be made of UHPC material and used as a precast UHPC permanent formwork. It is not disassembled after casting and permanently serves as the outer layer of the reinforcement structure. In addition, the outer cylinder 300 may have pre-embedded reinforcing bars protruding from its inner side, which extend into the casting space 301 to provide shear resistance.

[0030] Of course, in some other embodiments, the outer cylinder and inner cylinder 100 may also be made of other materials (such as metal materials).

[0031] Reference Figure 4 In some embodiments of the present invention, the steel reinforcement mesh 200 is formed by splicing two semi-circular steel reinforcement skeletons 210, which are connected and fixed. The two semi-circular steel reinforcement skeletons 210 are respectively installed on the first inner half-cylinder 110 and the second inner half-cylinder 120 at the same height. By setting the steel reinforcement mesh 200 to be spliced ​​from two semi-circular steel reinforcement skeletons 210, the steel reinforcement mesh 200 and the inner cylinder 100 can be disassembled and assembled simultaneously, avoiding the problem of difficulty in installing the whole steel reinforcement mesh 200, further reducing the difficulty of on-site assembly of the steel reinforcement mesh 200. After the two semi-circular steel reinforcement skeletons 210 are joined together, they form a complete annular stress-bearing structure, improving the overall rigidity of the reinforcement layer.

[0032] Reference Figure 5In a further embodiment of the present invention, the semicircular steel reinforcement skeleton 210 includes arc steel reinforcement 211 and vertical steel reinforcement 212. Multiple arc steel reinforcement 211 are arranged vertically, and multiple vertical steel reinforcement 212 are arranged around it. The vertical steel reinforcement 212 connects all the arc steel reinforcement 211 on the same semicircular steel reinforcement skeleton 210 in series. The vertical steel reinforcement 212 and the arc steel reinforcement 211 can be connected by binding or fixed by welding. Multiple support blocks 130 are arranged around the outer peripheral walls of the first inner half cylinder 110 and the second inner half cylinder 120. The support block 130 is provided with a support groove 131 with an upper opening for the arc steel reinforcement 211 of corresponding height to be embedded. By setting support blocks 130 on the outer periphery of the inner cylinder 100 and using the support grooves 131 of the support blocks 130 to accurately position and stably support the arc steel bars 211, the arc steel bars 211 are arranged in an orderly manner vertically without shifting or falling, which further ensures the overall positional accuracy of the steel mesh frame 200. This solves the problem that the traditional steel mesh frame 200 is prone to shifting and falling when placed directly on uneven ground, effectively avoids interference between the steel mesh frame 200 and the outer cylinder 300 during installation, and reduces the difficulty of on-site assembly.

[0033] Reference Figure 6 In a further embodiment of the present invention, the arc-shaped steel bar 211 has transversely extending extension sections 213 at both ends, and the arc-shaped steel bars 211 on the two semi-circular steel bar skeletons 210 on the same steel bar mesh 200 are staggered in the height direction; the extension section 213 is used to connect with the other semi-circular steel bar skeleton 210. Specifically, the extension section 213 of one of the semi-circular steel bar skeletons 210 on the same steel bar mesh 200 extends toward the other semi-circular steel bar skeleton 210, and the extension section 213 will be adjacent to the arc-shaped steel bar 211 and the extension section 213 on the other semi-circular steel bar skeleton 210. The extension section 213 can be connected to the arc-shaped steel bar 211 and / or the extension section 213 on the other semi-circular steel bar skeleton 210. It is understandable that the arc-shaped reinforcing bars 211 on the two semicircular reinforcing bar skeletons 210 on the same reinforcing bar grid are staggered in the height direction. The two semicircular reinforcing bar skeletons 210 will form multiple sets of staggered and adjacent arc-shaped reinforcing bars 211 and extension segments 213. Through these staggered and adjacent structural connections, the two semicircular reinforcing bar skeletons 210 are connected and fixed, making the overall stress of the reinforcing bar grid 200 more uniform. The extension segment 213 can be connected and fixed to the arc-shaped reinforcing bars 211 and / or the extension segment 213 on the other semicircular reinforcing bar skeleton 210 by binding or welding.

[0034] Reference Figure 1 and Figure 2In a further embodiment of the present invention, the inner cylinder 100, the steel mesh frame 200, and the outer cylinder 300 are arranged vertically, with two vertically adjacent inner cylinders 100 stacked and two vertically adjacent outer cylinders 300 stacked. The vertical steel bars 212 on two vertically adjacent steel mesh frames 200 are connected by steel bar sleeves 220. The stacked arrangement of the inner cylinders 100 and outer cylinders 300 can adapt to the reinforcement requirements of piles 101 of different heights, thus having a wider range of applications. The vertical steel bars 212 of the vertically adjacent steel mesh frames 200 are connected by steel bar sleeves 220, ensuring the connection reliability and force transmission continuity of the vertical steel bars 212, so that the multi-layer reinforcement structure forms an integral vertical force-bearing system. Specifically, the lower end of the rebar sleeve 220 is fitted onto the upper end of the vertical rebar 212 of the lower rebar mesh 200, and the upper end of the rebar sleeve 220 is fitted onto the lower end of the vertical rebar 212 of the upper rebar mesh 200. The rebar sleeve 220 and the vertical rebar 212 can be fixed by threaded connection or welding.

[0035] Reference Figure 9 and Figure 10 In some embodiments of the present invention, the bottom of the first inner half-cylinder 110 and the second inner half-cylinder 120 is provided with an end-embedding portion 150. When the embedding portion 150 is stacked, it is embedded in the center hole of the lower inner cylinder 100. That is, the outer circumferential diameter of the embedding portion 150 is adapted to the inner circumferential diameter of the first inner half-cylinder 110 and the second inner half-cylinder 120, thereby realizing the alignment and stacking.

[0036] Reference Figure 9 In a further embodiment of the present invention, the outer peripheral walls of the first inner half-cylinder 110 and the second inner half-cylinder 120 are each provided with at least one set of positioning strips 140. The two positioning strips 140 in the same set are spaced apart circumferentially, and there is a gap between the two positioning strips 140 in the same set for the corresponding vertical steel bars 212 to be embedded, thereby circumferentially positioning and limiting the vertical steel bars 212, preventing the semi-circular steel bar skeleton 210 from shifting or shaking circumferentially, and further improving the installation stability of the steel bar mesh 200.

[0037] Reference Figure 8 In a further embodiment of the present invention, an inclined guide surface 132 is provided on the side of the upper end of the support groove 131 near the inner cylinder 100. This guide surface plays a guiding role when the arc-shaped steel bar 211 is embedded into the support groove 131, so that the arc-shaped steel bar 211 falls into the support groove 131 more smoothly, reducing the difficulty of installing the steel mesh frame 200 and improving the efficiency of on-site assembly.

[0038] Reference Figure 4 and Figure 7In a further embodiment of the present invention, the upper ends of the first inner half-cylinder 110 are provided with outwardly extending first connecting blocks 1110 on both sides; the upper ends of the second inner half-cylinder 120 are provided with outwardly extending second connecting blocks 1210 on both sides; the upper ends of the first outer half-cylinder 310 are provided with inwardly extending third connecting blocks 3110 on both sides; the upper ends of the second outer half-cylinder 320 are provided with inwardly extending fourth connecting blocks 3210 on both sides; the first connecting blocks 1110, the second connecting blocks 1210, the third connecting blocks 3110 and the fourth connecting blocks 3210 are provided with corresponding holes for connection and fixation by fasteners. The first connecting block 1110, the second connecting block 1210, the third connecting block 3110, and the fourth connecting block 3210 are synchronously fixed by fasteners passing through the holes of each connecting block. This not only realizes the docking and assembly of the first inner half cylinder 110 and the second inner half cylinder 120, and the first outer half cylinder 310 and the second outer half cylinder 320, but also realizes the coordinated fixing of the inner cylinder 100 and the outer cylinder 300, which simplifies the assembly and reduces the assembly steps and difficulty.

[0039] Reference Figure 6 and Figure 8 In a further embodiment of the present invention, the lower ends of the first inner half-cylinder 110 are provided with outwardly extending first overlapping structures 1120 on both sides; the lower ends of the second inner half-cylinder 120 are provided with outwardly extending second overlapping structures 1220 on both sides; the first overlapping structures 1120 and the corresponding second overlapping structures 1220 cooperate to limit the relative movement of the first inner half-cylinder 110 and the second inner half-cylinder 120 in the separation direction, thereby realizing the pre-positioning and temporary fixing of the lower end of the inner half-cylinder. During assembly construction, the operator can first complete the initial engagement of the inner half-cylinder through the lower overlapping structure, without the need for additional auxiliary tools to continuously support the inner half-cylinder, reducing the operational difficulty of aligning and installing the upper first connecting block 1110 and the second connecting block 1210, improving the stability and construction efficiency of the inner cylinder assembly, and after the upper ends of the first inner half-cylinder 110 and the second inner half-cylinder 120 are fixed with fasteners, the lower ends can be stably assembled and fixed without fasteners.

[0040] The lower ends of the first outer half-cylinder 310 are provided with inwardly extending third overlapping structures 3120 on both sides; the lower ends of the second outer half-cylinder 320 are provided with inwardly extending fourth overlapping structures 3220 on both sides; the third overlapping structure 3120 and the corresponding fourth overlapping structure 3220 cooperate to limit the movement of the first outer half-cylinder 310 and the second outer half-cylinder 320 relative to each other in the separation direction, so that the first outer half-cylinder 310 and the second outer half-cylinder 320 can be initially positioned and fixed at the lower end simultaneously during assembly, without the need for separate temporary fixing of the lower end, and without the need for additional auxiliary tooling to continuously support the outer half-cylinder, reducing the operational difficulty of aligning and installing the upper third connecting block 3110 and the fourth connecting block 3210, and avoiding misalignment of the lower ends of the two outer half-cylinders under external force during installation.

[0041] The first overlapping structure 1120 includes a first base block 1124 and a second support block 1121. The second support block 1121 is connected to the upper end of the first base block 1124 and extends toward the second overlapping structure 1220. The second overlapping structure 1220 is provided with a second groove 1221 for the second support block 1121 to be inserted into. The second overlapping structure 1220 is a structural block connected to the outer peripheral wall of the second inner half-cylinder. The second support block 1121 is inserted into the second groove 1221 and its bottom is in contact with the bottom wall of the second groove 1221. The outer end of the second support block 1121 is provided with a downwardly extending first hook block 1122, which is the end of the second support block 1121 that is away from the first base block 1124. The second overlapping structure 1220 is clamped between the first hook block 1122 and the first base block 1124. By embedding the second support block 1121 into the second groove 1221, and by clamping the second overlapping structure 1220 between the first hook block 1122 and the first base block 1124, multi-directional limiting of the lower ends of the first inner half-cylinder 110 and the second inner half-cylinder 120 is achieved. Not only is lateral alignment and vertical support achieved through the cooperation of the second support block 1121 and the second groove 1221, but the separation tendency of the two inner half-cylinders is also restricted by the first hook block 1122. Reliable temporary fixation of the lower end of the inner half-cylinder can be achieved without the installation of fasteners, which effectively improves the firmness of the pre-fixation. At the same time, it can effectively transmit the force after assembly, effectively reducing the possibility of cracking and misalignment at the splice when the pile is under stress after repair.

[0042] The first overlapping structure 1120 and the second overlapping structure 1220 are respectively provided with a first through hole 1123 and a second through hole 1222 that are transversely penetrating. The fourth overlapping structure 3220 includes a fourth base block 3224 and a through block 3221. One end of the through block 3221 is connected to the fourth base block 3224, and the other end passes through the first through hole 1123 and the second through hole 1222. The end of the through block 3221 facing away from the fourth base block 3224 is provided with a downwardly extending second hook block 3222. The side of the second hook block 3222 is in contact with the side of the first base block 1124. The second hook block 3222 is in contact with the side of the first base block 1124 through the contact of the side of the first base block 1124. The second outer half-cylinder 320 and the lower end of the inner cylinder 100 are linked and pre-fixed. The first overlapping structure, the second overlapping structure and the fourth overlapping structure 3220 are connected in series. The two overlapping structures (the first overlapping structure 1120 and the second overlapping structure 1220) at the lower end of the first inner half-cylinder and the second inner half-cylinder are wrapped and limited by the through block 3221 and the second hook block 3222 to achieve lateral locking. At the same time, the two overlapping structures also achieve lateral limitation of the fourth overlapping structure 3220. There is no need to install fasteners at the lower end of the inner cylinder 100 and the outer cylinder 300 to fix them, which simplifies the lower end assembly steps.

[0043] The third overlapping structure 3120 includes a third base block 3123 and an extension block 3121. One end of the extension block 3121 is connected to the third base block 3123, and the other end extends toward the fourth overlapping structure 3220. The through block 3221 is provided with a vertical hole 3223, and the extension block 3121 is provided with a limiting block 3122 that extends downward and is embedded in the vertical hole 3223. By embedding the limiting block 3122 into the vertical hole 3223, the third overlapping structure 3120 and the fourth overlapping structure 3220 are connected in series for limiting, which can effectively restrict the separation tendency of the first outer half-cylinder 310 and the second outer half-cylinder 320. In addition, the fourth overlapping structure 3220 cooperates with the first overlapping structure 1120 and the second overlapping structure 1220 for limiting, thereby realizing the connection of the four overlapping structures at the bottom into a whole structure with mutual overlapping and limiting. During assembly, the positioning and locking of the four overlapping structures can be completed without fasteners. The operation is simple, and the bottom position is inconvenient for fastener installation. The above structure combination can achieve lower end limiting and pre-fixing without the aid of fasteners, thus improving construction efficiency.

[0044] It is understandable that the first lap structure 1120, the second lap structure 1220, the third lap structure 3120 and the fourth lap structure 3220 are all within the casting space. After casting, they will be wrapped by the casting material, which will further improve the connection strength and stability of each component, making each component a whole and further improving the overall structure.

[0045] In a specific embodiment of the present invention, the bottom surface of the extension block 3121 is supported by the through block 3221. By supporting the bottom surface of the extension block 3121 on the through block 3221, the weight of the first outer half-cylinder 310 can be transferred to the through block 3221 through the extension block 3121. During assembly, the first outer half-cylinder 310 can be directly rested on the through block 3221 for temporary support, eliminating the need for operators to continuously lift the first outer half-cylinder 310 and reducing the difficulty of operation. The bottom surface of the through block 3221 is supported by the bottom walls of the first through hole 1123 and the second through hole 1222. This achieves effective support and load transfer for the through block 3221, allowing it to be directly rested on the bottom walls of the two through holes after insertion, achieving temporary support and fixation without additional auxiliary support, further simplifying the installation operation of the second outer half-cylinder.

[0046] In a specific embodiment of the present invention, the upper end of the first connecting block 1110 is provided with a first support block 1111 extending toward the second connecting block 1210, and the upper end of the second connecting block 1210 is provided with a first groove 1211 into which the first support block 1111 is inserted. The first support block 1111 is inserted into the first groove 1211 and its bottom is in contact with the bottom wall of the first groove 1211. By inserting the first support block 1111 into the first groove 1211 and with their bottoms in contact, the precise alignment and support of the upper ends of the first inner half-cylinder 110 and the second inner half-cylinder 120 are achieved. During assembly, the positioning of the upper ends of the two first inner half-cylinders 110 and the second inner half-cylinder 120 can be automatically completed through the cooperation of the first support block 1111 and the first groove 1211. The hole alignment of the first connecting block and the second connecting block can be achieved without repeated manual adjustments, thereby improving the assembly accuracy and alignment efficiency.

[0047] Of course, in some embodiments, to improve the overall connection between the steel mesh 200 and the pile 101, the steel mesh 200 and the original pile surface can be connected by rebar installation. Several steel bars (or anchor bolts) are drilled into the original pile surface, and the ends of the installed steel bars are connected and fixed to the steel bars of the steel mesh 200.

[0048] The present invention also provides a method for repairing and reinforcing piles, comprising the following steps: roughening the outer periphery of the pile 101; assembling a first inner half-cylinder 110 and a second inner half-cylinder 120 around the outer periphery of the pile 101 to form an inner cylinder 100, wherein a filling space is formed between the inner cylinder 100 and the pile 101; installing a steel mesh frame 200 around the outer periphery of the inner cylinder 100; assembling a first outer half-cylinder 310 and a second outer half-cylinder 320 around the outer periphery of the inner cylinder 100 and the steel mesh frame 200 to form an outer cylinder 300, wherein a casting space 301 for accommodating the steel mesh frame 200 is formed between the outer cylinder 300 and the inner cylinder 100, wherein the peripheral walls of the first inner half-cylinder 110 and the second inner half-cylinder 120 are provided with grouting holes 102, so that the filling space and the casting space 301 are connected through the grouting holes 102. First, the outer periphery of the pile 101 is roughened to improve the adhesion between the filling material and the pile 101. Then, the first inner half-cylinder 110 and the second inner half-cylinder 120 are assembled in sequence to form the inner cylinder 100. The steel mesh frame 200 is installed, and the first outer half-cylinder 310 and the second outer half-cylinder 320 are assembled to form the outer cylinder 300. The process is clear and the assembly is convenient. The filling material is poured into the pouring space 301. Some of the material enters the filling space through the grout hole 102, so that the filling of the filling space and the pouring of the pouring space 301 are completed simultaneously in one pouring. This makes the pile 101, the inner cylinder 100, the steel mesh frame 200 and the outer cylinder 300 form an integrated load-bearing system, which improves the reinforcement quality and construction efficiency.

[0049] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A device for repairing and reinforcing piles at a waterway wharf, characterized in that, include: An inner cylinder (100) is arranged around the outer periphery of the pile (101), and a filling space is formed between the inner cylinder (100) and the pile (101); the inner cylinder (100) is composed of a first inner half cylinder (110) and a second inner half cylinder (120); A steel mesh frame (200) is installed on the outer circumferential wall of the inner cylinder (100); An outer cylinder (300) surrounds the outer periphery of the inner cylinder (100) and the steel mesh frame (200). A casting space (301) for accommodating the steel mesh frame (200) is formed between the outer cylinder (300) and the inner cylinder (100). The outer cylinder (300) is composed of a first outer half-cylinder (310) and a second outer half-cylinder (320). The first inner cylinder (110) and the second inner cylinder (120) are provided with grout passage holes (102) on their peripheral walls, so that the filling space and the pouring space (301) are connected through the grout passage holes (102).

2. The waterway wharf pile repair and reinforcement device according to claim 1, characterized in that, The steel mesh frame (200) is spliced ​​from two semi-circular steel skeletons (210), and the two semi-circular steel skeletons (210) are connected and fixed; the two semi-circular steel skeletons (210) are respectively installed in the first inner half cylinder (110) and the second inner half cylinder (120).

3. The waterway wharf pile repair and reinforcement device according to claim 2, characterized in that, The semicircular steel reinforcement skeleton (210) includes arc steel bars (211) and vertical steel bars (212). Multiple arc steel bars (211) are arranged vertically, and multiple vertical steel bars (212) are arranged around each other. The vertical steel bars (212) connect all the arc steel bars (211) on the same semicircular steel reinforcement skeleton (210) in series. Multiple support blocks (130) are arranged around the outer periphery of the first inner cylinder (110) and the second inner cylinder (120). The support blocks (130) are provided with support grooves (131) with openings at the top for the arc steel bars (211) of corresponding height to be embedded.

4. The waterway wharf pile repair and reinforcement device according to claim 3, characterized in that, The arc steel bar (211) has transversely extending extension sections (213) at both ends. The arc steel bars (211) on the two semi-circular steel bar skeletons (210) on the same steel bar grid (200) are staggered in the height direction. The extension section (213) is used to connect with the other semi-circular steel bar skeleton (210).

5. The waterway wharf pile repair and reinforcement device according to claim 3, characterized in that, The inner cylinder (100), the steel mesh frame (200), and the outer cylinder (300) are arranged vertically, and two vertically adjacent inner cylinders (100) are stacked, and two vertically adjacent outer cylinders (300) are stacked. The vertical steel bars (212) on two vertically adjacent steel mesh frames (200) are connected by steel bar sleeves (220).

6. The waterway wharf pile repair and reinforcement device according to claim 3, characterized in that, The outer peripheral walls of the first inner half-cylinder (110) and the second inner half-cylinder (120) are provided with at least one set of positioning strips (140). The two positioning strips (140) in the same set are arranged circumferentially at intervals, and there is a gap between the two positioning strips (140) in the same set for the corresponding vertical steel bars (212) to be embedded.

7. The waterway wharf pile repair and reinforcement device according to claim 3, characterized in that, The upper end of the support groove (131) is provided with an inclined guide surface (132) on the side near the inner cylinder (100).

8. The waterway wharf pile repair and reinforcement device according to claim 1, characterized in that, The first inner half-cylinder (110) has outwardly extending first connecting blocks (1110) on both sides of its upper end; the second inner half-cylinder (120) has outwardly extending second connecting blocks (1210) on both sides of its upper end; the first outer half-cylinder (310) has inwardly extending third connecting blocks (3110) on both sides of its upper end; the second outer half-cylinder (320) has inwardly extending fourth connecting blocks (3210) on both sides of its upper end; the first connecting block (1110), the second connecting block (1210), the third connecting block (3110) and the fourth connecting block (3210) have corresponding holes for connection and fixation by fasteners.

9. The waterway wharf pile repair and reinforcement device according to claim 8, characterized in that, The first inner half-cylinder (110) has outwardly extending first overlapping structures (1120) on both sides of its lower end; the second inner half-cylinder (120) has outwardly extending second overlapping structures (1220) on both sides of its lower end; the first outer half-cylinder (310) has inwardly extending third overlapping structures (3120) on both sides of its lower end; the second outer half-cylinder (320) has inwardly extending fourth overlapping structures (3220) on both sides of its lower end; the first overlapping structure (1120) includes a first base block (1124) and a connection to the first base block (1124). A second support block (1121) extends towards the second overlapping structure (1220). The second overlapping structure (1220) has a second groove (1221) for the second support block (1121) to be inserted into. The second support block (1121) is inserted into the second groove (1221) and its bottom is in contact with the bottom wall of the second groove (1221). The outer end of the second support block (1121) has a first hook block (1122) extending downward. The second overlapping structure (1220) is sandwiched between the first hook block (1122) and the first base block (1121). 24); the first overlapping structure (1120) and the second overlapping structure (1220) are respectively provided with a first through hole (1123) and a second through hole (1222) that are transversely penetrating; the fourth overlapping structure (3220) includes a fourth base block (3224) and a through block (3221); one end of the through block (3221) is connected to the fourth base block (3224), and the other end passes through the first through hole (1123) and the second through hole (1222); the end of the through block (3221) facing away from the fourth base block (3224) is provided with a downward extending The second hook block (3222) extends and is attached to the side of the first base block (1124); the third overlapping structure (3120) includes a third base block (3123) and an extension block (3121), one end of the extension block (3121) is connected to the third base block (3123), and the other end extends toward the fourth overlapping structure (3220); the through block (3221) is provided with a vertical hole (3223), and the extension block (3121) is provided with a limiting block (3122) that extends downward and is embedded in the vertical hole (3223).

10. A method for repairing and reinforcing piles, characterized in that, Includes the following steps: Roughening treatment is performed on the outer periphery of the pile (101); A first inner half-cylinder (110) and a second inner half-cylinder (120) are assembled around the outer periphery of the pile (101) to form an inner cylinder (100), and a filling space is formed between the inner cylinder (100) and the pile (101); A steel mesh frame (200) is installed on the outer periphery of the inner cylinder (100); A first outer half-cylinder (310) and a second outer half-cylinder (320) are assembled around the inner cylinder (100) and the steel mesh frame (200) to form an outer cylinder (300). A casting space (301) for accommodating the steel mesh frame (200) is formed between the outer cylinder (300) and the inner cylinder (100). The first inner half-cylinder (110) and the second inner half-cylinder (120) are provided with grouting holes (102) on their peripheral walls, so that the filling space and the casting space (301) are connected through the grouting holes (102). Filling material is poured into the pouring space (301), and part of the filling material enters the filling space through the grouting hole (102).

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