A repair component for concrete structure and repair method thereof

Abstract

The present application relates to the technical field of concrete structure repair, and discloses a repair component for concrete structure and a repair method thereof, wherein the repair component for concrete structure comprises a plurality of fixed cylinders, and fixing parts driving the plurality of fixed cylinders to be fixedly installed on the concrete structure, the plurality of fixed cylinders are arranged at intervals, and a connecting part is connected between two adjacent fixed cylinders; one end of the fixed cylinder is coaxially connected with a grouting nozzle, the fixed cylinder is slidably connected with a vent pipe for extending into the crack of the concrete structure, the vent pipe and the fixed cylinder are detachably installed, the two ends of the vent pipe in the length direction are closed ends, the side wall of the vent pipe is provided with a vent groove, the fixed cylinder is connected with an inflatable pipe, the inflatable pipe is connected with an inflatable device, the air outlet of the inflatable pipe is connected with the vent groove, and the air outlet of the vent pipe is connected with the air outlet. The present application can clean the cracks multiple times, thereby improving the degree of repair of the concrete structure.

Description

Technical Field

[0001] The present application relates to the technical field of concrete structure repair, and in particular to a repair component for a concrete structure and a repair method thereof. Background Art

[0002] There are many reasons why cracks appear in concrete walls in concrete structures, including material factors, unreasonable mix design, construction factors, design factors, external loads and environmental factors. In actual projects, the causes of cracks should be analyzed according to specific circumstances, and corresponding preventive measures and repair methods should be taken.

[0003] The repair method of concrete wall cracks mainly depends on the crack width, depth, location and its impact on the structure. Repair methods include surface repair method, pressure grouting method, enlargement reinforcement method, pasting reinforcement materials, etc. When the crack width is large, the repair method mainly adopts pressure grouting method, and the repair component includes a glue injection nozzle. The main repair steps include cleaning the crack with high-pressure gas, pre-burying multiple glue injection nozzles at the crack, closing the crack, and using pressure delivery equipment to inject structural glue into the crack until the crack is completely filled. After the structural glue is completely cured, check the repair surface to ensure that there is no hollowing, cracking, etc.

[0004] With regard to the above-mentioned related technologies, the depths of the cracks vary. When high-pressure gas is blown toward a part of the crack, dust and debris are blown toward other parts of the crack. The dust and debris are not cleaned thoroughly enough, and the degree of repair of the concrete structure needs to be improved. Summary of the invention

[0005] In order to improve the degree of repair of concrete structures, the present application provides a repair component for concrete structures and a repair method thereof.

[0006] In a first aspect, the present application provides a repair component for a concrete structure, which adopts the following technical solution:

[0007] A repair component for a concrete structure comprises a plurality of fixing tubes and fixing parts driving the plurality of fixing tubes to be fixedly installed on the concrete structure, the plurality of fixing tubes are arranged at intervals, and a connecting part is connected between two adjacent fixing tubes; a grouting nozzle is coaxially connected to one end of the fixing tube, a vent pipe for extending into a crack of the concrete structure is slidably connected to the fixing tube, the vent pipe and the fixing tube are detachably installed, both ends of the vent pipe in the length direction are closed ends, a vent groove is provided on the side wall of the vent pipe, and when the vent pipe slides along the fixing tube, the fixing tube always covers the vent groove, the fixing tube is connected to an inflation tube, the inflation tube is connected to an inflation device, the air outlet of the inflation tube is communicated with the vent groove, and an air outlet hole is provided on the tube wall at one end of the vent pipe extending into the crack.

[0008] By adopting the above technical scheme, multiple fixed tubes are formed into a whole through connecting parts, and the fixed tubes can be distributed at intervals along the direction of the crack. The fixed tube and the vent pipe cooperate so that the vent pipe can be stably inserted into the crack, and the depth of the vent pipe inserted into the crack can be adjusted to adapt to the depth of the crack. The inflation tube is always connected to the vent pipe, and the inflation device allows gas to enter the inflation tube in a high-pressure state. Gas can be filled into multiple positions of the crack at the same time, so that the dust and debris blown up in the crack are completely removed from the crack, thereby improving the degree of crack cleaning. When the crack is sealed with sealing glue, high-pressure gas can be filled into the vent pipe again, so that the dust that falls into the crack during the sealing process is blown up and adheres to the sealing glue, which can have a secondary cleaning effect on the crack, thereby improving the degree of repair of the concrete structure; after the vent pipe is detached from the fixed tube, grouting can be injected into the fixed tube, and mortar flows into the crack from the grouting pipe.

[0009] Optionally, the outer wall of the ventilation pipe is connected to a guide rod, the rod wall of the guide rod is connected to a slider, the guide rod is inserted into the fixed cylinder, the outer wall of the fixed cylinder is provided with a travel groove for sliding the slider, and the length of the travel groove is smaller than the length of the ventilation groove.

[0010] By adopting the above technical solution, the guide rod can guide the movement of the ventilation pipe, and the slider slides in the travel groove, thereby limiting the movement distance of the ventilation pipe, so that the ventilation pipe can stably slide in the fixed cylinder.

[0011] Optionally, the sliding block is detachably mounted on the guide rod.

[0012] By adopting the above technical solution, when the sliding block is detached from the guide rod, the sliding stroke of the ventilation pipe is no longer limited, and the ventilation pipe can directly leave the fixing tube.

[0013] Optionally, the connecting member is a connecting rod, and the connecting rod is made of a flexible material.

[0014] By adopting the above technical solution, since multiple fixing tubes are distributed according to the direction of the cracks, the flexible connecting rod can keep the original state without deformation after the position of the fixing tube is determined, and the fixing tube is also stably installed.

[0015] Optionally, the connecting rod is connected with a link, and the link is connected to the fixed tube.

[0016] By adopting the above technical solution, the link connected by the connecting rod is connected to the fixed cylinder, thereby enhancing the connection strength between the connecting piece and the fixed cylinder.

[0017] Optionally, a sphere is fixedly connected to the outer wall of the fixed cylinder, and the link is provided with a mounting groove for mounting the sphere, the mounting groove is an annular and variable diameter structure, and the maximum outer diameter of the mounting groove is equal to the outer diameter of the sphere.

[0018] By adopting the above technical solution, the fixed tube can rotate appropriately through the cooperation of the sphere and the link, and the vent pipe can extend into the crack in an inclined state along with the rotation of the fixed tube, so that the vent pipe can better adapt to the irregular depth in the crack.

[0019] Optionally, the inflation tube is connected to a valve.

[0020] By adopting the above technical solution, the valve connected to the inflation pipe is used to control the filling and stopping of gas.

[0021] Optionally, a plurality of the inflation tubes are connected to a collecting tube.

[0022] By adopting the above technical solution, multiple inflation pipes are connected to a central pipe, thereby realizing unified air supply to multiple ventilation pipes.

[0023] Optionally, the fixing member includes a fixing plate and a driving member for driving the fixing plate to abut against the concrete structure, and a fixing rod is connected between the fixing plate and the fixing cylinder.

[0024] By adopting the above technical solution, the driving member can achieve stable abutment of the fixing plate against the concrete structure, thereby ensuring the firm installation of the repair component on the concrete structure.

[0025] In a second aspect, the present application provides a method for repairing a concrete structure, which adopts the following technical solution:

[0026] A method for repairing a concrete structure, according to the above-mentioned repair component for a concrete structure, comprises the following steps:

[0027] Install the fixed cylinder. Before crack treatment, multiple fixed cylinders are installed on the concrete structure. The fixed cylinders are spaced along the crack direction. The connecting rods of two adjacent fixed cylinders are deformed and matched. The fixed cylinders and the chain rotate relatively. The ventilation pipe is extended into the crack. The extension length of the ventilation pipe is adjusted according to the crack depth.

[0028] Clean the cracks, and simultaneously introduce pressurized gas into multiple ventilation pipes to blow soot at multiple locations of the cracks at the same time;

[0029] Seal the cracks with a sealant, and bond the sealant to the fixing tube;

[0030] Clean the cracks for the second time and continue to introduce pressurized gas into multiple ventilation pipes at the same time;

[0031] For crack grouting, remove the vent pipe and use a grouting pump to inject the grouting material into the fixed cylinder at a certain pressure;

[0032] Curing and maintenance.

[0033] By adopting the above technical scheme, the cracks are cleaned twice before grouting, and multiple locations of the cracks are cleaned at the same time. Dust and waste residue are blown out of the cracks and are not easy to fall back into the cracks. The second crack cleaning is mainly to clean the dust. The dust in the cracks is blown away and adheres to the sealing glue. There is no need to pre-embed the grouting nozzle before grouting. The fixed tube can be used as the grouting nozzle, and the repair component can participate in the repair process.

[0034] In summary, the present application includes at least one of the following beneficial effects:

[0035] 1. Through the design of detachable vent pipe, connecting rod made of flexible material and mounting groove with variable diameter structure, the repair component can better adapt to cracks of different shapes and sizes, and can clean the cracks at multiple points at the same time, thus improving the flexibility and applicability of the repair;

[0036] 2. Through the sliding guide mechanism of the guide rod and the slider, the precise control of the gas filling by the valve, and the unified gas supply of multiple ventilation pipes by the collecting pipe, the precise control and regulation of the repair process is achieved, and the repair effect is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is a schematic diagram of a repair component of an embodiment of the present application installed on a concrete structure;

[0038] Figure 2 is a cross-sectional view of an embodiment of the present application showing a ventilation pipe vertically inserted into a crack;

[0039] Figure 3 is a cross-sectional view of an embodiment of the present application showing a ventilation pipe obliquely inserted into a crack;

[0040] Figure 4 It is a flow chart of the repair method of the embodiment of the present application.

[0041] Explanation of the reference numerals: 10, fixing cylinder; 11, grouting nozzle; 12, travel groove; 13, sphere; 20, fixing piece; 21, fixing plate; 22, fixing rod; 23, oblique support; 30, connecting piece; 31, connecting rod; 32, link; 33, mounting groove; 40, ventilation pipe; 41, air outlet; 42, ventilation groove; 43, guide rod; 44, slider; 50, inflation pipe; 51, valve; 60, collecting pipe; 100, concrete wall; 200, crack. DETAILED DESCRIPTION

[0042] The following is combined with Figure 1-4 This application is described in further detail.

[0043] The present application embodiment discloses a repair component for a concrete structure. Figure 1A repair component for a concrete structure is applied to the repair of a crack 200 in a concrete wall 100. The repair component for a concrete structure includes a plurality of fixed cylinders 10, and a fixing member 20 that drives the plurality of fixed cylinders 10 to be fixedly installed on the concrete structure. The fixing member 20 includes a fixing plate 21 and a plurality of fixing rods 22 fixedly installed on the fixing plate 21, one end of the fixing rod 22 is fixedly connected to the fixing cylinder 10, and the fixing rod 22 is made of a flexible material, such as iron wire. The plurality of fixed cylinders 10 are arranged at intervals, and the plurality of fixed cylinders 10 are distributed according to the direction of the crack 200. A connecting member 30 is connected between two adjacent fixed cylinders 10, and the connecting member 30 is a connecting rod 31 made of a flexible material, which maintains a deformed state after being deformed according to the direction of the crack 200. The connecting rod 31 of the embodiment of the present application is preferably made of iron wire. The fixing member 20 also includes a driving member for driving the fixing plate 21 to abut against the concrete structure. At the construction site, an inclined support 23 is required as a driving member to support the fixing plate 21. One end of the inclined support 23 is fixedly connected to the fixing plate 21, and the other end of the inclined support 23 is fixedly connected to the ground, so that the entire repair component can remain stable during the air blowing cleaning and grouting process.

[0044] Specifically, refer to Figure 2 The fixed cylinder 10 is a hollow cylindrical structure with two ends open. A grouting nozzle 11 is coaxially connected to one end of the fixed cylinder 10. The grouting nozzle 11 is a hollow truncated cone structure. When the fixed cylinder 10 is installed on the concrete wall 100, the grouting nozzle 11 extends into the crack 200. The grouting nozzle 11 is short and shorter than the minimum depth of the crack 200. The fixed cylinder 10 is slidably connected with a vent pipe 40 for extending into the crack 200 of the concrete wall 100. The vent pipe 40 passes through the grouting nozzle 11. The outer wall of the vent pipe 40 and the inner wall of the fixed cylinder 10 are fitted. The two ends of the vent pipe 40 in the length direction are closed ends. Both ends of the vent pipe 40 extend out of the fixed cylinder 10. An air outlet 41 is opened on the pipe wall of one end of the vent pipe 40 extending into the crack 200. The air outlet 41 is distributed in a plurality of directions along the pipe wall of the vent pipe 40. The part of the vent pipe 40 extending out of the concrete wall 100 cannot be ventilated.

[0045] Reference Figure 2In order to allow high-pressure gas to enter the ventilation pipe 40, a ventilation groove 42 is provided on the side wall of the ventilation pipe 40 located in the fixed cylinder 10. When the ventilation pipe 40 slides along the fixed cylinder 10, the fixed cylinder 10 always covers the ventilation groove 42, so that the ventilation groove 42 is not exposed outside the fixed cylinder 10. The fixed rod 22 is connected to the inflation tube 50, and the inflation tube 50 is a hose. The air outlet of the inflation tube 50 is connected to the ventilation groove 42. The inflation tube 50 and the fixed rod 22 are tied and connected by a rope (not shown in the figure), so that the inflation tube 50 can be deformed along with the deformation of the fixed rod 22, and the fixed rod 22 supports the inflation tube 50. The inflation tube 50 is connected to an inflation device (not shown in the figure), and the inflation device includes an inflation tank and an inflation pump, etc. The connection between the inflation device and the inflation tube 50 is a prior art, and this application will not describe it in detail. The inflation tube 50 is filled with high-pressure gas, and the high-pressure gas enters the crack 200 through the ventilation tube 40 , and the high pressure removes dust and debris in the crack 200 .

[0046] Reference Figure 1 , multiple inflatable tubes 50 are connected to the same collecting tube 60, and the collecting tube 60 is fixedly embedded and installed on the fixed plate 21. The inflatable tubes 50 are all installed with valves 51, and the valves 51 are small-caliber valves 51. Turning the valves 51 can control whether the inflatable tubes 50 are ventilated. When cleaning the cracks 200, the fixed rods 22 are distributed in the cracks 200 at intervals according to the on-site conditions. After the valves 51 of all the inflatable tubes 50 are fully opened, the collecting tube 60 is passed with high-pressure gas, and multiple positions of the cracks 200 can be blown and cleaned at the same time. The distribution of the fixed cylinder 10 can adapt to the direction of the cracks 200. The sliding fit of the vent pipe 40 and the fixed cylinder 10 allows the vent pipe 40 to adapt to different depths of the same crack 200. If the crack 200 is deeper, the vent pipe 40 can also be inserted. The design of the fixed cylinder 10 and the vent pipe 40 allows the dust and debris in the entire crack 200 to be blown out at the same time, thereby improving the removal effect of dust and debris.

[0047] More specifically, see Figure 1 and Figure 3 , the connecting rod 31 is connected with a link 32, the outer wall of the fixed tube 10 is fixedly connected with a sphere 13, the fixed tube 10 is penetrated by the sphere 13, and the central axis of the fixed tube 10 coincides with the center of the sphere 13. The link 32 is provided with a mounting groove 33 for the installation of the sphere 13, the mounting groove 33 is an annular and variable diameter structure, and the maximum outer diameter of the mounting groove 33 is equal to the outer diameter of the sphere 13. The sphere 13 is installed in the mounting groove 33 and is rotatably installed in the mounting groove 33. The fixed tube 10 and the link 32 rotate relative to each other, and the link 32 remains stationary. After the fixed tube 10 is adjusted in position, it has an angle with the wall surface of the concrete wall 100, and the angle is small, which does not affect the ventilation pipe 40 to blow and clean the crack 200, and can also facilitate the ventilation pipe 40 to extend into the deepest part of the crack 200.

[0048] More specifically, see Figure 2In order to make the vent pipe 40 adapt to cracks 200 of different depths and prevent the vent pipe 40 from leaving the fixed cylinder 10 easily. A guide rod 43 is fixedly connected to the outside of the vent pipe 40, and the fixed cylinder 10 is provided with a guide groove for the guide rod 43 to be inserted and slided, and the guide rod 43 is inserted into the guide groove. A slider 44 is detachably connected to the outer wall of the guide rod 43, and a travel groove 12 is provided on the outer side wall of the fixed cylinder 10 for the slider 44 to slide. The slider 44 is installed on the guide rod 43 and slides in the travel groove 12 along with the movement of the vent hole. The length of the travel groove 12 is less than the length of the vent groove 42. The cooperation of the slider 44 and the fixed cylinder 10 limits the travel of the vent pipe 40, so that the vent pipe 40 can slide stably in the fixed cylinder 10.

[0049] When the crack 200 is sealed by the sealant, the sealant adheres to the outer wall of the fixed tube 10. Since part of the fixed tube 10 is inclined with the concrete wall 100, the sealant fills the gap between the fixed tube 10 and the concrete wall 100, and can also increase the connection strength and sealing strength of the fixed tube 10 and the concrete wall 100. Before grouting the crack 200, the slider 44 is disassembled to separate the vent pipe 40 from the fixed tube 10, and grouting can be directly injected into the fixed tube 10. During the initial grouting, most of the valves 51 of the inflation tubes 50 are closed, and at least one valve 51 of the inflation tube 50 is opened, and the grouting material can be injected into the crack 200 at high pressure. When the crack 200 is basically filled, the inflation tube 50 can be cut with scissors at the inflation tube 50 between the valve 51 and the fixed tube 10, and then it can be determined whether the crack 200 is full of mortar according to whether the inflation tube 50 leaks.

[0050] The implementation principle of a repair component for a concrete structure in the embodiment of the present application is:

[0051] After cracks 200 appear in the concrete wall 100, the repair component is installed. First, multiple fixing cylinders 10 are distributed and installed according to the direction of the cracks 200, and the ventilation pipe 40 is driven to be inserted into the cracks 200 first. The entire repair component is installed and fixed with the fixing member 20, and then the rotation angle of the fixing cylinder 10 is carefully adjusted so that the fixing cylinder 10 can carry the ventilation pipe 40 and insert it deep into the crack 200. After all the ventilation pipes 40 are installed in place; open the valves 51 of all the charging pipes 50, and fill the collection pipe 60 with high-pressure gas. The high-pressure gas is ejected from the ventilation pipe 40 extending into the crack 200, and the crack 200 can be blown at multiple points at the same time, and the dust and debris in the crack 200 can be blown out of the crack 200;

[0052] After the crack 200 is cleaned, the fixing cylinder 10 remains stationary, and the crack 200 is sealed first. The position of the fixing cylinder 10 is also fixed, and the fixing cylinder 10 no longer rotates due to the relationship between the ball 13 and the link 32. After the crack 200 is completely sealed, the high-pressure gas is turned on to clean the crack 200 again. The dust and debris in the crack 200 adhere to the sealing glue, which further reduces the dust in the crack 200.

[0053] Then the ventilation pipe 40 can be removed, leaving only the fixed tube 10 installed on the concrete wall 100. The fixed tube 10 can be used as a part of the grouting nozzle 11. The valve 51 of the partial inflation tube 50 is closed first, and the grouting material is injected into the fixed tube 10 at a certain pressure using a grouting pump. The grouting material enters the crack 200 through the grouting nozzle 11; when the crack 200 is filled, the inflation tube 50 is cut off. If grouting material flows out of the inflation tube 50, it means that the crack 200 has been filled. During the repair process of the concrete wall 100, the repair component plays a dual role of cleaning the crack 200, grouting and checking the grouting condition, thereby improving the overall degree of concrete repair.

[0054] The embodiment of the present application also discloses a repair method for a concrete structure.

[0055] A method for repairing a concrete structure is performed according to the above-mentioned concrete repair component, comprising the following steps:

[0056] Install the fixing tube 10. Before the crack 200 is treated, multiple fixing tubes 10 are installed on the concrete structure. The fixing tubes 10 are spaced apart along the crack 200. The connecting rods 31 of two adjacent fixing tubes 10 are deformed and matched. The fixing tube 10 and the link 32 rotate relatively. The vent pipe 40 and the grouting nozzle 11 extend into the crack 200. The extension length of the vent pipe 40 is adjusted according to the depth of the crack 200 so that the vent pipe 40 can extend into the deepest part of the crack 200.

[0057] Clean the crack 200, and at the same time, introduce high-pressure gas into multiple ventilation pipes 40, so that the ventilation pipes 40 blow dust at multiple locations of the crack 200 at the same time, so that all dust and debris can be blown out and are not easy to remain;

[0058] The crack 200 is sealed by using a sealing adhesive, the sealing adhesive is bonded to the fixing tube 10, and the fixing tube 10 remains stationary;

[0059] The crack 200 is cleaned for the second time, and the high-pressure gas is continuously introduced into the multiple ventilation pipes 40 at the same time;

[0060] The crack 200 is grouted, and the vent pipe 40 is disassembled. The depth of the crack 200 can be determined according to the insertion of the vent pipe 40. The vent pipe 40 at the shallower position of the crack 200 can be left unplugged first. The deeper position of the crack 200 is grouted first. The grouting material is injected into the fixed tube 10 at a certain pressure using a grouting pump. The grouting material enters the crack 200 from the grouting nozzle 11. The injection of the grouting material should be observed, and it is decided whether to introduce high-pressure gas according to the situation. The high-pressure gas can be used to squeeze the grouting material in the crack 200 to further reduce the formation of bubbles or cavities in the crack 200 by the grouting material. Finally, other vent pipes 40 are pulled out. After the vent pipe 40 is pulled out, observe whether there is grouting material in the vent pipe 40. The situation of the vent pipe 40 can also reflect the filling situation of the grouting material in the crack 200. At the same time, it is necessary to control the grouting speed to avoid the formation of bubbles or cavities in the crack 200 by the grouting material to ensure that the crack 200 is completely filled.

[0061] During curing and maintenance, the grouting area should be kept dry and clean to avoid external impact and vibration.

[0062] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A repair component for a concrete structure, characterized in that: The invention comprises a plurality of fixing cylinders (10) and fixing members (20) for driving the plurality of fixing cylinders (10) to be fixedly installed on a concrete structure. The plurality of fixing cylinders (10) are arranged at intervals, and a connecting member (30) is connected between two adjacent fixing cylinders (10). One end of the fixing cylinder (10) is coaxially connected to a grouting nozzle (11), and the fixing cylinder (10) is slidably connected to a vent pipe (40) for extending into a crack (200) in the concrete structure. The vent pipe (40) and the fixing cylinder (10) are detachably installed. Both ends of the tube (40) in the length direction are closed ends, a ventilation groove (42) is provided on the side wall of the ventilation tube (40), when the ventilation tube (40) slides along the fixed cylinder (10), the fixed cylinder (10) always covers the ventilation groove (42), the fixed cylinder (10) is connected to an inflation tube (50), the inflation tube (50) is connected to an inflation device, the air outlet of the inflation tube (50) is in communication with the ventilation groove (42), and an air outlet hole (41) is provided on the tube wall of one end of the ventilation tube (40) extending into the crack (200); The connecting member (30) is a connecting rod (31), and the connecting rod (31) is made of a flexible material; The connecting rod (31) is connected to a link (32), and the link (32) is connected to the fixed cylinder (10); The outer wall of the fixed cylinder (10) is fixedly connected to a sphere (13), and the link (32) is provided with a mounting groove (33) for mounting the sphere (13). The mounting groove (33) is an annular structure with a variable diameter, and the maximum outer diameter of the mounting groove (33) is equal to the outer diameter of the sphere (13).

2. A repair component for a concrete structure according to claim 1, characterized in that: The outer wall of the ventilation pipe (40) is connected to a guide rod (43), the rod wall of the guide rod (43) is connected to a slider (44), the guide rod (43) is plugged into the fixed cylinder (10), and the outer wall of the fixed cylinder (10) is provided with a travel groove (12) for the slider (44) to slide, and the length of the travel groove (12) is less than the length of the ventilation groove (42).

3. A repair component for a concrete structure according to claim 2, characterized in that: The sliding block (44) is detachably mounted on the guide rod (43).

4. The repair component for concrete structure according to claim 1, characterized in that: The inflation tube (50) is connected to a valve (51).

5. A repair component for concrete structure according to claim 4, characterized in that: A plurality of the inflation tubes (50) are connected to a collecting tube (60).

6. The repair component for concrete structure according to claim 1, characterized in that: The fixing member (20) comprises a fixing plate (21) and a driving member for driving the fixing plate (21) to abut against the concrete structure; a fixing rod (22) is connected between the fixing plate (21) and the fixing cylinder (10).

7. A method for repairing a concrete structure, according to the repair component for a concrete structure according to claim 1, characterized in that: The following steps are included: Installing the fixing tubes (10), before treating the cracks (200), a plurality of fixing tubes (10) are installed on the concrete structure, the fixing tubes (10) are spaced apart along the direction of the cracks (200), the connecting rods (31) of two adjacent fixing tubes (10) are deformed and matched, the fixing tubes (10) and the connecting ring (32) are relatively rotated, the ventilation pipe (40) is extended into the cracks (200), and the extension length of the ventilation pipe (40) is adjusted according to the depth of the cracks (200); Cleaning the crack (200), while simultaneously introducing pressurized gas into a plurality of ventilation pipes (40), and simultaneously blowing soot from a plurality of locations of the crack (200); Sealing the crack (200), sealing the crack (200) with a sealing adhesive, and bonding the sealing adhesive to the fixing tube (10); The cracks (200) are cleaned for the second time, and pressurized gas is continuously introduced into the plurality of ventilation pipes (40) simultaneously; Grouting the crack (200), removing the ventilation pipe (40), and using a grouting pump to inject grouting material into the fixing tube (10) at a certain pressure; Curing and maintenance.

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