Reinforcing structure for grouting material crack on top surface of fan foundation table column

Abstract

The utility model relates to the technical field of wind power generation, and discloses a reinforcing structure for a grouting material crack on the top surface of a platform column of a fan foundation, which comprises a platform column top surface, a crack is arranged on the surface of the platform column top surface, a connecting plate is arranged on the surface of the platform column top surface, and the connecting plate is positioned at the top of the crack. The connecting plate is fixed by the bolt and the expansion pipe through the rotation of the bolt, the two sides of the crack in the vertical direction are reinforced through the arrangement of the steel bars and the carbon fiber plate, the crack is prevented from being enlarged, and compared with a traditional device, the device has the advantages that the two sides of the crack are supported through the steel bars; and the carbon fiber plate provides tensile stress for the two sides of the crack, the crack is prevented from being enlarged again by the tensile stress generated on the two sides of the crack, then the pouring groove is sealed through the carbon fiber plate, impurities are prevented from being blown into the uncured grouting material by external airflow, the reinforcing quality is improved, the grouting material can be well cured, and the crack is filled.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation, and more specifically to a reinforcement structure for cracks in grouting material on the top surface of a wind turbine foundation column. Background Art

[0002] The wind turbine foundation column is the structural foundation for supporting the wind turbine tower and wind turbine in a wind turbine generator set. It bears the weight of the wind turbine and the wind load, ensuring that the wind turbine can operate stably at an altitude of 60-100 meters. The main functions of the wind turbine foundation column include load-bearing support, earthquake and vibration resistance, and facilitation of cleaning and maintenance of the wind turbine.

[0003] In the application of the top surface of the wind turbine foundation column, the grouting material is mainly used to fill the gap between the foundation column and the wind turbine tower to ensure the tight connection and stability between the wind turbine tower and the foundation column. However, due to the high force strength of the column and the long-term exposure of the column to high wind force, the grouting material on the top surface of the column will dry and crack, destroying the integrity of the grouting material. Over time, the cracks will further expand, affecting the bearing capacity of the wind turbine foundation, so the cracks need to be reinforced.

[0004] At present, when reinforcing cracks, grouting is usually used to inject high-strength grouting materials into the cracks. However, when waiting for the grouting material to solidify, when the external environment has strong winds, the force on the wind turbine increases, and the incompletely solidified grouting material cannot support the column, causing the cracks to further expand. Therefore, it needs to be improved and optimized. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a reinforcement structure for grouting cracks on the top surface of a fan foundation column, which has the advantage of good reinforcement effect.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a reinforcement structure for grouting cracks on the top surface of a fan foundation column, comprising a column top surface, a crack is arranged on the surface of the column top surface, a connecting plate is arranged on the surface of the column top surface, and the connecting plate is located at the top of the crack;

[0007] A carbon fiber plate is provided on the top of the connecting plate, and nuts are fixedly installed on the top of the carbon fiber plate. There are four groups of nuts, all of which are fixedly installed at the four corners of the top of the carbon fiber plate. Bolts are sleeved on the internal threads of the nuts, and the bottoms of the bolts pass through the inside of the top surface of the column and are sleeved on the expansion tube threads. A pouring groove is opened inside the connecting plate, and steel bars are fixedly installed inside the pouring groove.

[0008] As a preferred technical solution of the utility model, the outer wall of the carbon fiber plate is provided with a waterproof coating to prevent rainwater from penetrating.

[0009] As a preferred technical solution of the utility model, the connecting plate is fixedly installed on the top of the top surface of the column, and the steel bars and cracks inside the pouring groove are perpendicular to each other.

[0010] As a preferred technical solution of the utility model, a first connecting head is fixedly installed on the left side of the connecting plate, a second connecting head is fixedly installed on the right side of the connecting plate, and the two groups of connecting plates are hinged to each other through the first connecting head and the second connecting head.

[0011] As a preferred technical solution of the utility model, the inside of the grouting groove and the crack is filled with high-strength grouting material, and the carbon fiber plate seals the grouting groove.

[0012] As a preferred technical solution of the utility model, the waterproof coating is K waterproof coating, which improves the air permeability of the grouting material.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model fixes the connection plate with the bolts and the expansion tube by rotating the bolts, and then reinforces the two sides of the crack in the vertical direction by setting the steel bars and the carbon fiber plates to prevent the crack from expanding. Compared with the traditional device, the device supports the two sides of the crack by the steel bars, and the carbon fiber plates provide tensile stress on the two sides of the crack to prevent the tensile stress generated on both sides of the crack from expanding the crack again, and then caps the grouting groove by the carbon fiber plates to prevent the external airflow from blowing debris into the uncured grouting material, thereby improving the quality of reinforcement, enabling the grouting material to be well cured and filling the cracks.

[0015] 2. The utility model connects multiple groups of connecting plates by setting a first connecting head and a second connecting head, and then isolates rainwater and moisture through the waterproof coating on the top of the carbon fiber plate. Compared with the traditional device, the device prevents the uncured grouting material inside the grouting groove and the crack from being affected by the waterproof coating, and then hinges the multiple groups of connecting plates to each other through the first connecting head and the second connecting head to avoid cracking in the left and right directions, thereby improving the reinforcement quality and ensuring the molding of the grouting material. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure when the connecting plates of the utility model are connected to each other;

[0018] Figure 3 This is a schematic diagram of the steel bar structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the pouring tank of the utility model;

[0020] Figure 5 It is a schematic diagram of the structure of the utility model during reinforcement.

[0021] In the figure: 1. Top surface of the column; 2. Crack; 3. Connecting plate; 4. Carbon fiber plate; 5. Nut; 6. Bolt; 7. Expansion tube; 8. Casting trough; 9. Rebar; 10. Waterproof coating; 11. First connector; 12. Second connector. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figures 1 to 5 As shown, the utility model provides a reinforcement structure for grouting cracks on the top surface of a fan foundation column, comprising a column top surface 1, a crack 2 is arranged on the surface of the column top surface 1, a connecting plate 3 is arranged on the surface of the column top surface 1, and the connecting plate 3 is located at the top of the crack 2;

[0024] A carbon fiber plate 4 is provided on the top of the connecting plate 3, and nuts 5 are fixedly installed on the top of the carbon fiber plate 4. There are four groups of nuts 5, all of which are fixedly installed at the four corners of the top of the carbon fiber plate 4. Bolts 6 are sleeved on the internal threads of the nuts 5. The bottom of the bolts 6 passes through the inside of the top surface 1 of the column and is threadedly sleeved with the expansion tube 7. A pouring groove 8 is opened inside the connecting plate 3, and a steel bar 9 is fixedly installed inside the pouring groove 8.

[0025] When it is necessary to reinforce the cracks of the grouting material on the top surface of the column, the staff first cleans the surface of the crack 2, and then fills the inside of the crack 2 so that the high-strength grouting material completely fills the crack 2. Secondly, the staff removes the grouting nozzle and places the connecting plate 3 at the grouting nozzle position so that the steel bar 9 is perpendicular to the cracking direction. After the positioning is completed, the staff continues to fill the inside of the grouting groove 8 with grouting material, and after the filling is completed, the grouting groove 8 is capped with the carbon fiber plate 4. The staff rotates the bolt 6, and the rotation of the bolt 6 causes the expansion tube 7 to expand. At this time, the expansion tube 7 is tightly installed inside the top surface 1 of the column, so that the connecting plate 3 is installed On both sides of the crack 2, the steel bars 9 support the two sides of the crack 2, and the carbon fiber plate 4 provides tensile stress on both sides of the crack 2 to prevent the tensile stress generated on both sides of the crack 2 from expanding the crack 2 again. The staff installs multiple sets of connecting plates 3 along the crack 2, and at this time the first connecting head 11 and the second connecting head 12 are hinged to each other to prevent the top surface 1 of the column from cracking left and right. After the installation is completed, the staff applies a waterproof coating 10 on the surface of the carbon fiber plate 4. When it rains outside, the waterproof coating 10 on the surface of the carbon fiber plate 4 will isolate rainwater and moisture to prevent the grouting material in the grouting groove 8 and the crack 2 from being affected by moisture, thereby completing the reinforcement.

[0026] By rotating the bolt 6, the bolt 6 and the expansion tube 7 fix the connecting plate 3, and then by setting the steel bar 9 and the carbon fiber plate 4, the two sides of the crack 2 in the vertical direction are reinforced to prevent the crack 2 from increasing. Compared with the traditional device, the device supports the two sides of the crack 2 through the steel bar 9, and the carbon fiber plate 4 provides tensile stress on both sides of the crack 2 to prevent the tensile stress generated on both sides of the crack 2 from expanding the crack 2 again. Then, the carbon fiber plate 4 caps the pouring groove 8 to prevent external airflow from blowing debris into the uncured grouting material, thereby improving the quality of reinforcement, enabling the grouting material to cure well and fill the crack 2.

[0027] The outer wall of the carbon fiber plate 4 is provided with a waterproof coating 10 to prevent rainwater from penetrating.

[0028] The staff applies the waterproof coating 10 on the surface of the carbon fiber plate 4. When it rains outside, the waterproof coating 10 on the surface of the carbon fiber plate 4 will isolate the rainwater and moisture, preventing the grouting material in the grouting groove 8 and the crack 2 from being affected by moisture, thereby completing the reinforcement.

[0029] The plurality of connection plates 3 are connected by means of the first connection head 11 and the second connection head 12, and rainwater and moisture are isolated by the waterproof coating 10 on the top of the carbon fiber plate 4. Compared with the traditional device, the device prevents the uncured grouting material inside the grouting groove 8 and the crack 2 from being affected by the waterproof coating 10, and then the plurality of connection plates 3 are hinged to each other by means of the first connection head 11 and the second connection head 12 to avoid cracking in the left and right directions, thereby improving the reinforcement quality and ensuring the molding of the grouting material.

[0030] The connecting plate 3 is fixedly installed on the top of the top surface 1 of the column, and the steel bars 9 and the cracks 2 inside the pouring groove 8 are perpendicular to each other.

[0031] The steel bars 9 support both sides of the crack 2 to prevent the tensile stress generated on both sides of the crack 2 from expanding the crack 2 again.

[0032] A first connection head 11 is fixedly installed on the left side of the connection plate 3 , a second connection head 12 is fixedly installed on the right side of the connection plate 3 , and the two groups of connection plates 3 are hinged to each other through the first connection head 11 and the second connection head 12 .

[0033] The staff installs multiple groups of connecting plates 3 along the crack 2, and at this time the first connecting head 11 and the second connecting head 12 are hinged to each other to prevent the top surface 1 of the column from cracking left and right.

[0034] The inside of the pouring groove 8 and the crack 2 are filled with high-strength grouting material, and the carbon fiber plate 4 seals the pouring groove 8 .

[0035] The carbon fiber plate 4 will provide tensile stress to both sides of the crack 2 for a long time, making the reinforcement more stable.

[0036] Among them, the waterproof coating 10 is K11 waterproof coating, which improves the air permeability of the grouting material.

[0037] The working principle and use process of this utility model:

[0038] When it is necessary to reinforce the cracks of the grouting material on the top surface of the column, the staff first cleans the surface of the crack 2, and then fills the inside of the crack 2 so that the high-strength grouting material completely fills the crack 2. Secondly, the staff removes the grouting nozzle and places the connecting plate 3 at the grouting nozzle position so that the steel bar 9 is perpendicular to the cracking direction. After the positioning is completed, the staff continues to fill the inside of the grouting groove 8 with grouting material, and after the filling is completed, the grouting groove 8 is capped with the carbon fiber plate 4. The staff rotates the bolt 6, and the rotation of the bolt 6 causes the expansion tube 7 to expand. At this time, the expansion tube 7 is tightly installed inside the top surface 1 of the column, so that the connecting plate 3 is installed On both sides of the crack 2, the steel bars 9 support the two sides of the crack 2, and the carbon fiber plate 4 provides tensile stress on both sides of the crack 2 to prevent the tensile stress generated on both sides of the crack 2 from expanding the crack 2 again. The staff installs multiple sets of connecting plates 3 along the crack 2, and at this time the first connecting head 11 and the second connecting head 12 are hinged to each other to prevent the top surface 1 of the column from cracking left and right. After the installation is completed, the staff applies a waterproof coating 10 on the surface of the carbon fiber plate 4. When it rains outside, the waterproof coating 10 on the surface of the carbon fiber plate 4 will isolate rainwater and moisture to prevent the grouting material in the grouting groove 8 and the crack 2 from being affected by moisture, thereby completing the reinforcement.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reinforcement structure for cracks in grouting material on the top surface of a fan foundation column, comprising a column top surface (1), wherein the surface of the column top surface (1) is provided with cracks (2), and characterized in that: The top surface (1) of the platform column is provided with a connecting plate (3), and the connecting plate (3) is located at the top of the crack (2); A carbon fiber plate (4) is arranged on the top of the connecting plate (3), and nuts (5) are fixedly installed on the top of the carbon fiber plate (4). There are four groups of nuts (5), which are fixedly installed at the four corners of the top of the carbon fiber plate (4). Bolts (6) are threadedly sleeved on the inner part of the nuts (5). The bottom of the bolts (6) passes through the inside of the top surface (1) of the column and is threadedly sleeved with the expansion tube (7). A pouring groove (8) is opened inside the connecting plate (3), and a steel bar (9) is fixedly installed inside the pouring groove (8).

2. A reinforcement structure for grouting cracks on the top surface of a fan foundation column according to claim 1, characterized in that: The outer wall of the carbon fiber plate (4) is provided with a waterproof coating (10) to prevent rainwater from penetrating.

3. A reinforcement structure for grouting cracks on the top surface of a fan foundation column according to claim 1, characterized in that: The connecting plate (3) is fixedly mounted on the top of the top surface (1) of the platform column, and the steel bars (9) and the cracks (2) inside the pouring groove (8) are perpendicular to each other.

4. A reinforcement structure for cracks in grouting material on the top surface of a fan foundation column according to claim 1, characterized in that: A first connecting head (11) is fixedly mounted on the left side of the connecting plate (3), a second connecting head (12) is fixedly mounted on the right side of the connecting plate (3), and the two groups of connecting plates (3) are hingedly connected to each other via the first connecting head (11) and the second connecting head (12).

5. A reinforcement structure for cracks in grouting material on the top surface of a fan foundation column according to claim 1, characterized in that: The inside of the pouring groove (8) and the crack (2) are filled with high-strength grouting material, and the carbon fiber plate (4) seals the pouring groove (8).

6. A reinforcement structure for grouting cracks on the top surface of a fan foundation column according to claim 2, characterized in that: The waterproof coating (10) is a K11 waterproof coating, which improves the air permeability of the grouting material.

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