A leak prevention device for grouting material in steel pipe piles

Abstract

This application relates to a grout leakage prevention device for steel pipe piles, installed inside the steel pipe pile, including brackets and a leak-proof component. Multiple brackets are spaced apart on the inner wall of the steel pipe pile and are fixedly connected to it. The leak-proof component prevents leakage of the grout inside the steel pipe pile and prevents silt from entering the pile. The leak-proof component includes a circular plate and a rubber grout-stopping strip. The circular plate is positioned on top of the bracket, and a predetermined gap exists between the outer edge of the circular plate and the inner wall of the steel pipe pile. The rubber grout-stopping strip surrounds the outer edge of the circular plate and seals the gap. This grout leakage prevention device for steel pipe piles can effectively prevent leakage of grout for offshore wind turbine foundations and avoid silt from mixing into the grout.

Description

Technical Field

[0001] This application relates to the field of offshore wind power engineering technology, specifically to a leakage prevention device for grouting material in steel pipe piles. Background Technology

[0002] In offshore wind power projects, jacket foundations have been widely used. However, due to verticality deviations during construction, steel pipe piles often fail to maintain the ideal angle with the vertical during pile driving. This can easily lead to incomplete fit between the lower structure of the jacket and the steel pipe piles, causing damage to the packer and resulting in grout leakage. Because the grout has a relatively high density, the leaked grout will continue to sink, while the surrounding silt will move upwards, causing the silt to mix into the grout. Ultimately, this reduces the connection strength of the grout, affecting the connection strength between the steel pipe piles and the jacket, and consequently impacting the stability of the overall structure. Utility Model Content

[0003] This application provides a grout leakage prevention device for steel pipe piles, which can effectively prevent leakage of grout for offshore wind turbine foundations and avoid silt from mixing into the grout.

[0004] The anti-leakage device for grouting material of steel pipe piles provided in this application is installed inside the steel pipe pile and includes:

[0005] The brackets are multiple, and the multiple brackets are arranged at intervals on the inner wall of the steel pipe pile, and the brackets are fixedly connected to the steel pipe pile;

[0006] A leak-proof component is provided to prevent the grout material inside the steel pipe pile from leaking out and to prevent silt from entering the steel pipe pile. The leak-proof component includes a circular plate and a rubber grout-stopping strip. The circular plate is disposed on the top of the corbel, and there is a preset gap between the outer edge of the circular plate and the inner wall of the steel pipe pile. The rubber grout-stopping strip is disposed around the outer edge of the circular plate and is used to seal the gap.

[0007] In addition, the anti-leakage device for grouting material of steel pipe piles provided in this application may also have the following additional technical features:

[0008] In one alternative embodiment, the grouting material leakage prevention device for steel pipe piles further includes multiple safety rope attachment points, which are spaced apart on the side of the circular plate away from the corbel, and the safety rope attachment points are fixedly connected to the circular plate, with through holes for the safety rope to pass through.

[0009] In one alternative embodiment, the grouting material leakage prevention device for steel pipe piles further includes reinforcing ribs, which are disposed on the side of the circular plate facing the corbel and are fixedly connected to the circular plate. The reinforcing ribs include a plurality of angle steels arranged in a crisscross pattern.

[0010] In one alternative embodiment, the circular plate is made of steel, and the thickness of the circular plate is not less than 10 mm, and the gap between the outer edge of the circular plate and the steel pipe pile is not less than 3 cm.

[0011] In one alternative embodiment, the number of corbels is four, and the four corbels are evenly arranged on the inner wall of the steel pipe pile at equal angles and heights. The corbels are fixedly connected to the steel pipe pile by welding. The reinforcing ribs are fixedly connected to the circular plate by welding.

[0012] The beneficial effects of this application are as follows:

[0013] The anti-leakage device for grouting material in this application uses multiple brackets to fix a circular plate inside the steel pipe pile. A rubber grout-stopping strip is set around the outer edge of the circular plate and is used to seal the gap between the steel pipe pile and the circular plate, thereby playing a certain sealing role for the steel pipe pile, preventing the grouting material inside the steel pipe pile from leaking out, and preventing silt from entering the steel pipe pile. To a certain extent, it solves the problems of large-scale grouting leakage and reduced bonding strength, and can better meet the requirements of rapid and safe grouting of jacket foundations and steel pipe piles.

[0014] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0015] Figure 1 A schematic diagram of the installation structure of the anti-leakage device for steel pipe pile grouting material provided in this application;

[0016] Figure 2 A schematic diagram of the structural composition of the anti-leakage device for steel pipe pile grouting material provided in this application;

[0017] Figure 3 This is a schematic diagram of the structure of the safety rope attachment point provided in this application in one specific embodiment.

[0018] Attached reference numerals: 1. Steel pipe pile; 2. Bracket; 3. Circular plate; 4. Rubber grout stop; 5. Safety rope hanging point; 51. Through hole; 6. Reinforcing rib; 61. Angle steel.

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Detailed Implementation

[0020] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0021] It should be understood that the described embodiments are merely some embodiments of this application, and not all embodiments. All other technical solutions obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0022] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0023] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0024] It should be noted that the directional terms such as "upper," "lower," "left," and "right" described in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when it is mentioned that an element is connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected to the other element "upper" or "lower" through an intermediate element.

[0025] like Figure 1-3 As shown in the figure, this application embodiment provides a grouting material leakage prevention device for steel pipe piles. The grouting material leakage prevention device is installed inside the steel pipe pile 1 and mainly includes brackets 2 and leakage prevention components. There are multiple brackets 2, which are arranged at intervals on the inner wall of the steel pipe pile 1 and are fixedly connected to the steel pipe pile 1. The leakage prevention components are used to prevent the grouting material inside the steel pipe pile 1 from leaking during construction and to prevent surrounding silt from entering the steel pipe pile 1, thereby ensuring the purity of the grouting material. The leakage prevention components include a circular plate 3 and a rubber grout-stopping strip 4. The circular plate 3 is set on the top of the bracket 2, and there is a preset gap between the outer edge of the circular plate 3 and the inner wall of the steel pipe pile 1. The rubber grout-stopping strip 4 is surrounded on the outer edge of the circular plate 3 and is used to seal the gap.

[0026] In this embodiment, the anti-leakage device for grouting material of steel pipe piles uses multiple brackets 2 to fix the circular plate 3 inside the steel pipe pile 1. The rubber grout-stopping strip 4 is set around the outer edge of the circular plate 3 and is used to seal the gap between the steel pipe pile 1 and the circular plate 3, thereby playing a certain sealing role for the steel pipe pile 1, preventing the grouting material inside the steel pipe pile 1 from leaking, and preventing silt from entering the steel pipe pile 1. To a certain extent, it solves the problems of large-scale grouting leakage and reduced bonding strength, and can better meet the requirements of rapid and safe grouting of the jacket foundation and the steel pipe pile 1.

[0027] like Figure 1-3 As shown, in one specific embodiment, the steel pipe pile grouting material leakage prevention device further includes multiple safety rope hanging points 5, which are spaced apart on the side of the circular plate 3 away from the corbel 2, and the safety rope hanging points 5 are fixedly connected to the circular plate 3. The safety rope hanging points 5 have through holes 51 for the safety rope to pass through.

[0028] like Figure 1-2 As shown, in one specific embodiment, the anti-leakage device for grouting material of steel pipe piles further includes reinforcing ribs 6. The reinforcing ribs 6 are disposed on the side of the circular plate 3 facing the corbel 2, and the reinforcing ribs 6 are fixedly connected to the circular plate 3. The reinforcing ribs 6 include a plurality of longitudinally and transversely arranged angle steels 61. The grooves of the angle steels 61 are welded to the circular plate 3 with the grooves facing upward to form a whole, thereby enhancing the structural strength and rigidity of the circular plate 3 and preventing the circular plate 3 from deforming.

[0029] In addition, the circular plate 3 is made of steel. In order to ensure that the circular plate 3 has a certain rigidity, the thickness of the circular plate 3 shall not be less than 10mm. Furthermore, in order to facilitate installation, the diameter of the circular plate 3 shall be slightly narrower than the diameter of the steel pipe pile 1, and the gap between the edge of the steel plate and the inner wall of the steel pipe pile 1 shall be more than 3cm, that is, the gap between the outer edge of the circular plate 3 and the steel pipe pile 1 shall not be less than 3cm.

[0030] like Figure 1-2 As shown, in one specific embodiment, the bracket 2 is made of steel, and there are four brackets 2. The four brackets 2 are evenly arranged on the inner wall of the steel pipe pile 1 at equal angles and heights, and are fixedly connected to the steel pipe pile 1 by welding. The reinforcing rib 6 is fixedly connected to the circular plate 3 by welding. In addition, the bracket 2 has a T-shaped structure, and the side of the bracket 2 is fixed to the inner wall of the steel pipe pile 1 by welding. The top of the bracket 2 is a plane that supports the circular plate 3. In this embodiment, there are four brackets 2, but in some other embodiments, the number of brackets 2 can be increased or decreased according to the pipe diameter of the steel pipe pile 1, the position of the circular plate 3, etc. This article will not go into details. Generally speaking, the number of brackets 2 should not be less than three.

[0031] The anti-leakage device for grouting material of steel pipe piles in this embodiment has low cost and simple structure. After application, it can effectively solve the problem of leakage of grouting material in the wind turbine foundation and the resulting decrease in connection strength. During use, the bracket 2 can be welded and fixed during the design and manufacturing process of steel pipe pile 1. Before shipment, the circular plate 3 can be placed on the bracket 2, which can save the operation time of offshore hoisting and reduce safety risks.

[0032] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A leakage preventing device for a steel pipe pile grout, which is provided in the inside of a steel pipe pile, characterized in that, include: The brackets are multiple, and the multiple brackets are arranged at intervals on the inner wall of the steel pipe pile, and the brackets are fixedly connected to the steel pipe pile; A leak-proof component is provided to prevent the grout material inside the steel pipe pile from leaking out and to prevent silt from entering the steel pipe pile. The leak-proof component includes a circular plate and a rubber grout-stopping strip. The circular plate is disposed on the top of the corbel, and there is a preset gap between the outer edge of the circular plate and the inner wall of the steel pipe pile. The rubber grout-stopping strip is disposed around the outer edge of the circular plate and is used to seal the gap.

2. The steel pipe pile grout leakage prevention device according to claim 1, characterized by It also includes multiple safety rope attachment points, which are spaced apart on the side of the circular plate away from the corbel, and the safety rope attachment points are fixedly connected to the circular plate, and each safety rope attachment point has a through hole for the safety rope to pass through.

3. The anti-leakage device for grouting material of steel pipe piles according to claim 1 or 2, characterized in that, It also includes reinforcing ribs, which are disposed on the side of the circular plate facing the corbel, and are fixedly connected to the circular plate. The reinforcing ribs include a plurality of angle steels arranged in a crisscross pattern.

4. The anti-leakage device for grouting material of steel pipe piles according to claim 3, characterized in that, The circular plate is made of steel, and the thickness of the circular plate is not less than 10mm. The gap between the outer edge of the circular plate and the steel pipe pile is not less than 3cm.

5. The anti-leakage device for grouting material of steel pipe piles according to claim 3, characterized in that, The number of brackets is four, and the four brackets are evenly arranged on the inner wall of the steel pipe pile at equal angles and heights. The brackets are fixedly connected to the steel pipe pile by welding. The reinforcing ribs are fixedly connected to the circular plate by welding.

Images