Repair system for corrosion of photovoltaic concrete pile head
The cylindrical structure repair system, consisting of a self-compacting concrete layer, an anti-corrosion coating, and UHPC segmented ring plates, solves the structural damage problem of photovoltaic concrete pile heads in harsh environments, achieving efficient and stable repair results and improved durability.
Patent Information
- Application Number
- CN202423114741.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-17
AI Technical Summary
In the Gobi Desert and other desert environments, the cement slurry layer of photovoltaic concrete pile heads peels off due to freeze-thaw cycles, alkalization, and wind and sand erosion, leading to structural cracking and damage. Existing repair methods are either inefficient or complex to construct.
The structure is formed by prefabricated segmented rings using self-compacting concrete layers, concrete anti-corrosion coatings, and UHPC materials. Self-compacting concrete is poured by splicing and filling the cavities, and the anti-corrosion coating enhances the structural durability.
It achieves a fast and simple repair effect, improves the stability and bearing capacity of concrete pile heads, extends service life, resists wind and sand erosion, and reduces construction difficulty.
Smart Images
Figure CN223607919U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the field of photovoltaic concrete piles, in particular to a repair system for repairing an eroded photovoltaic concrete pile head. BACKGROUND
[0002] In the Gobi desert and desert environment, the photovoltaic concrete pile head is subjected to freeze-thaw cycles, alkalization and wind and sand erosion, resulting in peeling of the cement paste layer and exposure of the internal aggregate. This process is accompanied by further cracking of the concrete structure, and the continuous erosion of the wind and sand intensifies the damage to the pile head, and even causes the entire pile head to break into pieces. At present, the conventional treatment method for the sand-eroded pile head is to use fine solid concrete for repair, but this method can only provide temporary protection. Another method is to build a formwork for the pile head and re-pour concrete for repair, however, this repair process is complex, has a long construction period and is low in efficiency. CONTENT OF THE UTILITY MODEL
[0003] The application provides a repair system for repairing an eroded photovoltaic concrete pile head, which is easy to operate and can conveniently and quickly repair the eroded concrete pile, has good repair effect and is high in efficiency.
[0004] The technical scheme provided by the application is as follows:
[0005] The application provides a repair system for repairing an eroded photovoltaic concrete pile head, which comprises a self-compacting concrete layer, a concrete anticorrosive coating and a plurality of UHPC material prefabricated block ring pieces.
[0006] The plurality of block ring pieces are spliced into a ring-shaped cylindrical structure, the cylindrical structure is sleeved on the photovoltaic concrete pile head to be repaired, a filling cavity gap is formed between the inner wall of the cylindrical structure and the outer peripheral wall of the photovoltaic concrete pile head to be repaired, the filling cavity gap is filled with the self-compacting concrete layer to tightly connect the photovoltaic concrete pile head and the cylindrical structure, and the outer periphery of the cylindrical structure is coated with the concrete anticorrosive coating.
[0007] Further, the splicing surface of the block ring piece is provided with a clamping groove for splicing, and the adjacent block ring pieces are abutted and connected by the clamping groove structure.
[0008] Further, the splicing end surface of the block ring piece extends outward along the radial direction of the cylindrical structure and has a butt joint ear plate, and the butt joint ear plate has a lock hole, and a locking bolt is arranged in the lock hole.
[0009] Further, the UHPC material prefabricated block ring piece is internally provided with a mesh layer structure composed of steel bars or steel wires.
[0010] Further, the splicing surface of the adjacent block ring pieces is further provided with an epoxy resin-based adhesive.
[0011] Further, the axial height of the UHPC material prefabricated segmented ring piece is set to be equal to the height of the photovoltaic concrete pile head to be repaired on the ground.
[0012] Further, the thickness of the UHPC material prefabricated segmented ring piece is 10-30mm.
[0013] Further, the number of segmented ring pieces in the cylindrical structure is two to three.
[0014] Further, the axial height of the UHPC material prefabricated segmented ring piece is set to be equal to the height of the photovoltaic concrete pile head to be repaired on the ground, and the thickness of the UHPC material prefabricated segmented ring piece is 10-30mm.
[0015] Advantages
[0016] The application provides a repair system for photovoltaic concrete pile head corrosion, which comprises a self-compacting concrete layer, a concrete anticorrosive coating, and a plurality of UHPC material prefabricated segmented ring pieces; the segmented ring pieces and the assembled cylindrical structure have the advantages of UHPC material, such as high strength, high toughness, high impermeability, freeze-thaw resistance, chemical corrosion resistance and impact resistance; the plurality of UHPC material prefabricated segmented ring pieces are assembled into a cylindrical structure on the outside of the concrete pile head to be repaired, preferably the segmented ring pieces are made into semicircular ring pieces, two pieces of which can be spliced into a cylindrical structure, effectively reducing the construction difficulty, splicing quickly and simply; the gap between the cylindrical structure and the concrete pile head to be repaired is filled with self-compacting concrete slurry, the slurry is a prefabricated product, and field construction ensures the quality of cast-in-place self-compacting concrete, effectively ensuring the stability and bearing capacity of the repaired and reinforced concrete pile head; in addition, the cylindrical structure of the UHPC material is coated with a concrete anticorrosive coating, which can effectively reduce the damage caused by wind and sand erosion, enhance the durability of the overall structure, and prolong the service life of the pile head. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments described in the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any inventive labor.
[0018] Figure 1 A structural schematic diagram of a repair system for photovoltaic concrete pile head corrosion is provided for the present embodiment;
[0019] Figure 2 A three-dimensional state structural schematic diagram of segmented ring pieces and concrete pile heads in a repair system for photovoltaic concrete pile head corrosion is provided for the present embodiment;
[0020] Figure 3 A first structure diagram of a split ring segment in a repair system for photovoltaic concrete pile head corrosion provided by the embodiment is shown in the figure;
[0021] Figure 4 A second structure diagram of a split ring segment in a repair system for photovoltaic concrete pile head corrosion provided by the embodiment is shown in the figure;
[0022] In the figure, 10 is a cylindrical structure, 11 is a split ring segment, 12 is an abutting ear plate, 20 is a self-compacting concrete layer, and 30 is a concrete pile head. DETAILED DESCRIPTION
[0023] In order to make the technical personnel in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by the ordinary technical personnel in the art without creative labor are within the scope of protection of the present application.
[0024] It should be noted that when an element is referred to as being “fixed to” or “set on” another element, it can be directly on the other element or indirectly on the other element; when an element is referred to as being “connected to” another element, it can be directly connected to the other element or indirectly connected to the other element.
[0025] It should be understood that the terms “length”, “width”, “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer” and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the indicated processing tool or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0026] In addition, the terms “first” and “second” are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with “first” and “second” can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of “multiple” and “several” is two or more, unless otherwise specifically limited.
[0027] It is to be understood that the structures, proportions, sizes, etc. shown in the drawings of the present specification are merely used to cooperate with the disclosed content, to be understood and read by those skilled in the art, and are not used to limit the defined conditions that can be implemented by the present application, and therefore do not have technical significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.
[0028] The embodiments of the present application are written in a progressive manner.
[0029] Referring to Figures 1 to 2 The embodiments of the present application provide a repair system for photovoltaic concrete pile head corrosion, comprising: a self-compacting concrete layer 20, a concrete anticorrosive coating, and a plurality of UHPC material prefabricated segmented ring pieces 11;
[0030] The plurality of segmented ring pieces are spliced into a ring-shaped cylindrical structure 10, which is sleeved on the photovoltaic concrete pile head 30 to be repaired; a filling cavity gap is formed between the inner wall of the cylindrical structure and the outer peripheral wall of the photovoltaic concrete pile head to be repaired; the filling cavity gap is filled with a self-compacting concrete layer to tightly connect the photovoltaic concrete pile head and the cylindrical structure; the outer periphery of the cylindrical structure is coated with a concrete anticorrosive coating.
[0031] In the above scheme, the segmented ring pieces and the cylindrical structure body formed by splicing them fully integrate the excellent performance of UHPC (ultra-high performance concrete) material, exhibiting high strength, high toughness, excellent impermeability, outstanding freeze-thaw cycle resistance, good chemical corrosion resistance, and outstanding impact resistance; by prefabricating a plurality of UHPC material segmented ring pieces and splicing them on the outside of the concrete pile head to be repaired, a cylindrical structure body is formed; in this process, the segmented ring pieces with a semicircular design are preferably used, and only two pieces are needed to conveniently splice into a complete cylindrical structure, which significantly reduces the construction difficulty and realizes quick and simple splicing operation; the filling cavity between the cylindrical structure body and the concrete pile head to be repaired is filled with prefabricated self-compacting concrete grout, which is a finished product prefabricated material, ensuring the quality of the cast-in-place self-compacting concrete layer under field construction conditions, effectively guaranteeing the stability and bearing capacity of the repaired and reinforced concrete pile head. In addition, applying a concrete anticorrosive coating to the outside of the cylindrical structure body made of UHPC material can effectively resist damage caused by wind and sand erosion, improve the durability of the overall structure, and prolong the service life of the pile head.
[0032] Referring to Figure 3 The splicing surface of the segmented ring piece is provided with a clamping groove for splicing, and adjacent segmented ring pieces are abutted and connected by the clamping groove structure;
[0033] Alternatively, referring to Figure 4The joint end face of the split ring piece is outwardly extended in the radial direction of the cylindrical structure, and has a butt joint lug plate 12 with a locking hole.
[0034] In the above scheme, the split ring piece of the UHPC material is preformed and has a mesh layer structure composed of steel bars or steel wires, which effectively enhances the strength and other properties. Further, the joint surface of the adjacent split ring pieces is provided with an epoxy resin-based glue; the use of the epoxy resin joint glue effectively enhances the stability of the joint.
[0035] Further, the axial height of the split ring piece of the UHPC material is equal to the height of the photovoltaic concrete pile head to be repaired on the ground. Alternatively, the axial height of the split ring piece of the UHPC material is slightly greater than the height of the photovoltaic concrete pile head to be repaired on the ground, preferably greater than 5 cm.
[0036] The thickness of the split ring piece of the UHPC material is 10-30 mm; the embodiment adopts 15 mm.
[0037] Further, the number of split ring pieces in the cylindrical structure is two to three; the cross section of the cylindrical structure includes a circular cross section of a circular pile or a square cross section of a square pile; in the embodiment, the circular concrete pile head is taken as an example, the number of split ring pieces is two, and the split ring pieces are semicircular ring sheets, which are jointed into a circular cylindrical structure.
[0038] The above description of disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A repair system for erosion of photovoltaic concrete pile heads, characterized in that, include: Self-compacting concrete layer, concrete anti-corrosion coating, and multiple UHPC material prefabricated segmented ring pieces; Multiple segmented ring pieces are spliced together to form a ring-shaped cylindrical structure, which is fitted onto the photovoltaic concrete pile head to be repaired; a filling cavity gap is formed between the inner wall of the cylindrical structure and the outer peripheral wall of the photovoltaic concrete pile head to be repaired; the filling cavity gap is filled with a self-compacting concrete layer to securely connect the photovoltaic concrete pile head and the cylindrical structure; the outer periphery of the cylindrical structure is coated with a concrete anti-corrosion coating.
2. The repair system according to claim 1, characterized in that, The splicing surfaces of the segmented ring pieces are provided with splicing grooves, and adjacent segmented ring pieces are matched and connected by the groove structure.
3. The repair system according to claim 1, characterized in that, The segmented ring splicing end face extends outward along the radial direction of the cylindrical structure with a mating lug plate, and the mating lug plate has a locking hole; a locking bolt is installed in the locking hole for fixation.
4. The repair system according to claim 1, characterized in that, The pre-formed UHPC material consists of segmented rings with a mesh structure built into them, consisting of steel bars or wires.
5. The repair system according to any one of claims 1-4, characterized in that, Epoxy resin colloid is also provided at the joint surfaces of adjacent segmented ring pieces.
6. The repair system according to claim 5, characterized in that, The axial height of the prefabricated UHPC material segmented rings is set at the same height as the photovoltaic concrete pile head to be repaired on the ground.
7. The repair system according to claim 6, characterized in that, The thickness of the UHPC material preformed segmented ring sheets is 10-30mm.
8. The repair system according to any one of claims 1-4 and 6-7, characterized in that, The number of segmented ring pieces in the cylindrical structure is two to three.
9. The repair system according to any one of claims 1-4, characterized in that, The axial height of the UHPC prefabricated segmented ring sheet is set at the same height as the photovoltaic concrete pile head to be repaired on the ground, and the thickness of the UHPC prefabricated segmented ring sheet is 10-30mm.