Repair systems for cracked concrete foundations

By using detection modules, analysis modules and repair modules in the concrete foundation crack detection system, combined with oily liquid depth detection, the problem of iron powder not being able to fill cracks and being unable to judge steel bar rust is solved, and more accurate and stable crack repair is achieved. Avoid cavity problems and improve repair effect.

CN118187176BActive Publication Date: 2024-12-06SHANDONG WEIYAN HIGH SPEED RAILWAY CO LTD
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Patent Information

Application Number
CN202410269495.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-03-11
Publication Date
2024-12-06
Estimated Expiration
2044-03-11

AI Technical Summary

Technical Problem

In the prior art, iron powder is used as the infusion medium and it is easy to fail to fill the entire crack, resulting in inaccurate analysis results, and it is impossible to judge whether the steel bars exposed to the external environment for a long time have rust, especially when the cracks are too deep, which can easily produce cavities, which affects the impact of Later repair effect.

Method used

A system including detection module, analysis module and repair module was designed to detect crack width and oxidation conditions, generate feedback signals, repair signals or casting signals, and use oily liquids for depth detection and filling to ensure accurate repair of cracks. and pour to avoid cavity generation.

Benefits of technology

It improves the accuracy of crack detection and restoration stability of concrete foundations, saves materials, ensures the comprehensiveness and accuracy of the restoration process, and avoids the problem of hollow cavity repair in the later stage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the technical field of concrete repair, and in particular to a repair system for a cracked concrete foundation, wherein the system comprises: a detection module, which is used to perform quality detection on cracks in a concrete foundation and form corresponding detection records; an analysis module, which is used to judge the state of the cracks in the concrete foundation according to the detection records, and generate a feedback signal, a repair signal or a pouring signal according to the judgment results; and a repair module, which is used to receive the repair signal and the pouring signal respectively, and repair or re-pour the cracks in the concrete foundation. By setting the above modules, the present invention effectively improves the stability and comprehensiveness of detection, while avoiding the problem of cavities generated in cracks during the later repair process, thereby effectively improving the accuracy of repairing cracked concrete foundations and saving repair materials.
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Description

Technical Field

[0001] The invention relates to the technical field of concrete repair, in particular to a repair system for a cracked concrete foundation. Background Art

[0002] Concrete foundations can be used as building foundations, equipment foundations, etc. Due to environmental humidity, temperature, and the quality of the material itself, cracks often occur during long-term load-bearing. Concrete, as a protective layer for internal steel bars, prevents oxidation of internal steel bars. Once concrete cracks, the steel bars are exposed to the external environment and oxidize, which will affect the structural performance of the entire foundation. Therefore, the cracked concrete foundation should be repaired in time according to the actual situation.

[0003] Chinese patent application number: CN117589973A discloses a concrete crack detection method, system, storage medium and intelligent terminal. The application relates to a concrete crack detection method, system, storage medium and intelligent terminal, which includes a detection vehicle moving along a concrete pavement and acquiring a detection image; stopping moving and injecting iron powder when a preset crack feature appears on the detection image; acquiring the injection height and injection volume; calculating the injection surface area based on the injection height and injection volume and forming a mapping relationship between the injection height and the injection surface area; forming a reference crack model based on the mapping relationship when the injection height is equal to the preset concrete surface height; outputting the reference crack model and using an electromagnet component to suck out and recycle the iron powder after the reference crack model is output. The application has the function of forming a reference crack model for reference for subsequent engineering analysis, providing multi-faceted and multi-angle data, and improving the accuracy and multi-faceted effect of crack detection.

[0004] However, the above method has the following problems: using iron powder as the injection medium may not be able to fill the entire crack, resulting in inaccurate analysis results, and it is impossible to judge whether the steel bars exposed to the external environment for a long time will rust. When the crack is too deep, using iron powder to fill it may easily produce cavities, making it impossible to fill the entire crack during the subsequent repair process, causing changes in the basic structure. Summary of the invention

[0005] To this end, the present invention provides a repair system and method for a cracked concrete foundation, so as to overcome the problem in the prior art that iron powder used as an injection medium is easily unable to fill the entire crack, resulting in inaccurate analysis results, and it is impossible to judge whether the steel bars exposed to the external environment for a long time are rusted. When the cracks are too deep, the use of iron powder for filling is likely to produce cavities, making it impossible to fill the entire crack in the later repair process, resulting in changes in the foundation structure.

[0006] To achieve the above object, the present invention provides a repair system for a cracked concrete foundation, comprising:

[0007] A detection module, which is used to perform quality detection on concrete foundation cracks and form corresponding detection records;

[0008] An analysis module, which is connected to the detection module, and is used to judge the state of the cracks in the concrete foundation according to the detection record, and to generate a feedback signal, a repair signal or a pouring signal according to the judgment result;

[0009] A repair module, connected to the analysis module, for receiving the repair signal and the pouring signal respectively, and repairing or re-pour the concrete foundation cracks;

[0010] Wherein, when the analysis module sends a feedback signal, the detection module performs a further detection on the cracks of the concrete foundation;

[0011] When the analysis module sends a repair signal, the repair module repairs the concrete foundation cracks;

[0012] When the analysis module sends a pouring signal, the repair module re-pours the concrete foundation cracks.

[0013] Furthermore, the detection module includes:

[0014] A first detection unit, which is used to detect the width of the cracks in the concrete foundation and send the detection record to the analysis module;

[0015] The second detection unit is used to receive the feedback signal, detect whether the steel bars in the cracks of the concrete foundation are oxidized, and send the detection record to the analysis module.

[0016] Furthermore, the analysis module is provided with a first width value and a second width value. When the first detection unit completes a single detection of the width of the concrete foundation crack, the detection record is sent to the analysis module, and the analysis module determines the repair method of the concrete foundation crack according to the crack width value obtained by the detection;

[0017] If the crack width value is less than the first width value, the analysis module determines that the concrete foundation crack needs further detection, and at this time the analysis module sends a feedback signal to the second detection unit;

[0018] If the crack width value is greater than or equal to the first width value and less than the second width value, the analysis module determines that the concrete foundation crack needs to be repaired, and sends the repair signal to the repair module;

[0019] If the crack width value is greater than or equal to the second width value, the analysis module determines that the concrete foundation crack needs to be recast, and sends the casting signal to the repair module;

[0020] The first width value and the second width value are related to parameters of the corresponding concrete.

[0021] Further, when the second detection unit receives the feedback signal, it performs steel bar detection on the cracks of the concrete foundation;

[0022] Wherein, the steel bar detection is a process of using oily liquid to saturate and fill the cracks in the concrete foundation for detection;

[0023] If the steel bar detection determines that the steel bars exposed in the concrete foundation cracks are corroded, recasting the concrete foundation cracks;

[0024] If the steel bar detection determines that the steel bars exposed in the concrete foundation cracks are not corroded, the concrete foundation cracks are repaired.

[0025] Further, when the repair module receives the repair signal, it performs basic repair work on the concrete foundation cracks;

[0026] When the pouring signal is received, re-pour the concrete foundation cracks;

[0027] The foundation repair work is carried out without damaging the existing concrete foundation.

[0028] Furthermore, when the entire fracture is saturated and filled with the oil liquid, the second detection unit determines that the saturated filling is completed when the second detection unit detects that the oil liquid no longer enters the fracture.

[0029] Furthermore, when determining the crack size, the detection module also uses a sealing material to seal the crack surface of the concrete foundation and exposes its corresponding upper surface to the air.

[0030] Furthermore, after receiving the repair signal, the repair module performs corresponding repair work according to different width values ​​of the concrete foundation cracks.

[0031] Furthermore, when the second detection unit completes the saturation filling of the entire crack, the crack is left to stand for a preset time and knocks around the crack of the concrete foundation;

[0032] If bubbles appear in the cracks of the concrete foundation, the analysis module determines that the cracked steel bars corresponding to the concrete foundation are oxidized, and determines that the concrete foundation should be recast;

[0033] If no bubbles appear in the cracks of the concrete foundation, the analysis module determines that the steel bars of the concrete foundation are not oxidized, and determines to repair the concrete foundation;

[0034] The preset time duration is related to the viscosity coefficient of the oily liquid.

[0035] Furthermore, when the detection module uses a sealing material to seal the crack surface of the concrete foundation, if the crack of the concrete foundation does not have the upper surface, a test gap is reserved on the upper part of the crack for oil filling and observation;

[0036] The width of the test gap is related to the size of the crack.

[0037] Compared with the prior art, the beneficial effect of the present invention lies in that the system of the present invention utilizes the method of setting up detection modules and adopts multiple methods to detect cracks in concrete foundations, thereby improving the stability of detection, effectively improving the accuracy of repairing cracked concrete foundations and saving materials.

[0038] Furthermore, by setting up an analysis module, the state of the cracks is analyzed, and the cracks are classified and processed. This effectively improves the comprehensiveness of the coverage detection problems, further improves the accuracy of the cracked concrete foundation repair and saves materials.

[0039] Furthermore, by utilizing the repair module, different crack problems can be dealt with in different ways, which effectively reduces labor and material losses while further improving the accuracy of cracked concrete foundation repair and saving materials.

[0040] Furthermore, the steel bars inside the cracks were deeply tested by infiltrating them with oily materials, which effectively avoided the problem of cavities in the cracks during the later repair process, further improved the accuracy of the cracked concrete foundation repair and saved materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a structural schematic diagram of a repair system for a cracked concrete foundation of the present invention;

[0042] Figure 2 The present invention is a flow chart of the method for repairing a cracked concrete foundation. DETAILED DESCRIPTION

[0043] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0044] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0045] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0046] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] See also Figure 1 As shown, it is a structural schematic diagram of a repair system for a cracked concrete foundation of the present invention, a repair system for a cracked concrete foundation, comprising:

[0048] A detection module, which is used to perform quality detection on concrete foundation cracks and form corresponding detection records;

[0049] An analysis module, which is connected to the detection module, is used to judge the state of the concrete foundation cracks according to the detection records, and generate a feedback signal, a repair signal or a pouring signal according to the judgment results;

[0050] A repair module, which is connected to the analysis module, is used to receive the repair signal and the pouring signal respectively, and repair or re-pour the concrete foundation cracks;

[0051] Among them, when the analysis module sends a feedback signal, the detection module performs the next step of detection on the concrete foundation cracks;

[0052] When the analysis module sends a repair signal, the repair module repairs the cracks in the concrete foundation;

[0053] When the analysis module sends a pouring signal, the repair module re-pours the concrete foundation cracks.

[0054] Specifically, the detection module includes:

[0055] A first detection unit, which is used to detect the width of the cracks in the concrete foundation and send the detection records to the analysis module;

[0056] The second detection unit is used to receive the feedback signal, detect whether the steel bars in the cracks of the concrete foundation are oxidized, and send the detection record to the analysis module.

[0057] It is understandable that the inspection records include crack width and whether the steel bars are oxidized.

[0058] Specifically, the system of the present invention utilizes a detection module to detect cracks in the concrete foundation in a variety of ways, thereby improving the stability of the detection, effectively improving the accuracy of repairing the cracked concrete foundation and saving materials.

[0059] Specifically, the analysis module is provided with a first width value and a second width value. When the first detection unit completes a single concrete foundation crack width detection, the detection record is sent to the analysis module, and the analysis module determines the repair method of the concrete foundation crack according to the crack width value obtained by the detection;

[0060] If the crack width value is less than the first width value, the analysis module determines that the concrete foundation crack needs further detection, and at this time the analysis module sends a feedback signal to the second detection unit;

[0061] If the crack width value is greater than or equal to the first width value and less than the second width value, the analysis module determines that the concrete foundation crack needs to be repaired, and sends a repair signal to the repair module;

[0062] If the crack width value is greater than or equal to the second width value, the analysis module determines that the concrete foundation crack needs to be recast, and sends a casting signal to the repair module;

[0063] The first width value and the second width value are related to parameters of the corresponding concrete.

[0064] Embodiment 1:

[0065] In this embodiment, the concrete foundation is cast using C30 concrete, the first width value is set to 3 mm, and the second width value is set to 5 mm. If the first detection unit measures the target crack width to be 1 mm, the analysis module determines that the crack needs further detection, and at this time the analysis module sends a feedback signal to the second detection unit;

[0066] If the first detection unit measures the target crack width to be 4 mm, the analysis module determines that the crack needs to be repaired, and sends a repair signal to the repair module to perform glue filling repair on the crack;

[0067] If the first detection unit measures the target crack width to be 6 mm, the analysis module determines that the crack needs to be recast, and sends a casting signal to the repair module to chisel the crack and recast;

[0068] Embodiment 2:

[0069] Based on Example 1, the difference is that the concrete foundation is cast with C25 concrete, the first width value is set to 2 mm, and if the first detection unit measures the target crack width to be 1 mm, the analysis module determines that the crack needs further detection, and at this time the analysis module sends a feedback signal to the second detection unit;

[0070] If the first detection unit measures the target crack width to be 3 mm, the analysis module determines that the crack needs to be repaired, and sends a repair signal to the repair module to apply cement mortar to the crack for repair;

[0071] If the first detection unit measures the target crack width to be 6 mm, the analysis module determines that the crack needs to be recast, and sends a casting signal to the repair module to chisel the crack and recast;

[0072] Embodiment 3:

[0073] Based on Example 1, the difference is that the concrete foundation is cast with C50 concrete, the second width value is set to 6 mm, and if the first detection unit measures the target crack width to be 1 mm, the analysis module determines that the crack needs further detection, and at this time the analysis module sends a feedback signal to the second detection unit;

[0074] If the first detection unit measures the target crack width to be 4 mm, the analysis module determines that the crack needs to be repaired and sends a repair signal to the repair module to repair the crack by applying cement mortar;

[0075] If the first detection unit measures the target crack width to be 8 mm, the analysis module determines that the crack needs to be recast, and sends a casting signal to the repair module to chisel the crack and recast;

[0076] Specifically, when the second detection unit receives the feedback signal, it performs steel bar detection on the cracks in the concrete foundation;

[0077] Among them, steel bar detection is the process of using oily liquid to saturate and fill the cracks in the concrete foundation for detection;

[0078] If the steel bar inspection determines that the exposed steel bars in the concrete foundation cracks are corroded, the concrete foundation cracks will be recast;

[0079] If the steel bar inspection determines that the exposed steel bars in the concrete foundation cracks are not corroded, the concrete foundation cracks will be repaired.

[0080] Embodiment 4:

[0081] In this embodiment, on the basis of embodiment 1, when the second detection unit receives the feedback signal, it starts to detect the steel bars of the crack, firstly closes the side of the crack with a plastic film, leaving only the top surface of the crack, then pours tung oil into the crack until it can no longer penetrate into the crack, after standing for 5 minutes, uses a rubber hammer to knock around the crack to observe whether there are bubbles, and if no bubbles emerge, the crack is repaired by a coating covering method;

[0082] If bubbles appear, it means that the steel bars inside the crack are corroded and the concrete foundation needs to be dismantled and re-poured.

[0083] Specifically, by setting up an analysis module, the state of the cracks is analyzed, and the cracks are classified and processed. This effectively improves the comprehensiveness of coverage detection issues, further improves the accuracy of cracked concrete foundation repair and saves materials.

[0084] Specifically, when the repair module receives the repair signal, it performs basic repair work on the concrete foundation cracks;

[0085] When a pouring signal is received, the concrete foundation cracks are re-poured;

[0086] The foundation repair work is carried out without damaging the existing concrete foundation.

[0087] Specifically, by using the repair module, different crack problems are dealt with in different ways, which effectively reduces labor and material losses, further improves the accuracy of cracked concrete foundation repair and saves materials.

[0088] Specifically, when the second detection unit is in the process of saturating and filling the entire fracture with oily liquid, the second detection unit determines that the saturated filling is completed when it detects that the oily liquid no longer enters the fracture.

[0089] Specifically, when determining the size of the crack, the detection module also uses a sealing material to seal the crack surface of the concrete foundation and exposes its corresponding upper surface to the air.

[0090] Specifically, after receiving the repair signal, the repair module performs corresponding repair work according to the different width values ​​of the concrete foundation cracks.

[0091] Specifically, when the second detection unit completes saturation filling of the entire crack, the crack is left to stand for a preset time and knocks around the crack of the concrete foundation;

[0092] If bubbles appear in the cracks of the concrete foundation, the analysis module determines that the corresponding cracked steel bars of the concrete foundation are oxidized, and determines that the concrete foundation should be recast;

[0093] If there are no bubbles in the cracks of the concrete foundation, the analysis module determines that the steel bars of the concrete foundation are not oxidized, and determines to repair the concrete foundation;

[0094] The preset time length is related to the viscosity coefficient of the oil liquid.

[0095] It can be understood that the preset time length is positively correlated with the viscosity coefficient of the oil liquid.

[0096] Specifically, when the detection module uses sealing materials to seal the crack surface of the concrete foundation, if the crack of the concrete foundation has no upper surface, a test gap is reserved on the upper part of the crack for oil filling and observation;

[0097] The width of the test gap is related to the size of the crack.

[0098] It can be understood that the width of the test gap is positively correlated with the size of the crack.

[0099] Embodiment 5:

[0100] See also Figure 2 As shown, it is a flow chart of the method for repairing a cracked concrete foundation of the present invention;

[0101] Referring to the above-mentioned cracked concrete foundation repair system, a cracked concrete foundation repair method is obtained, comprising:

[0102] Step S1, using a measuring tool to measure the width of the crack in the concrete foundation;

[0103] Step S2, using a sealing material to seal the crack surface of the concrete foundation, leaving only the upper surface exposed to the air;

[0104] Step S3, comparing the measurement result with the set width value to determine whether repair is needed. If repair is not needed, proceed to the next step of detection;

[0105] Step S4, pouring oily liquid into the cracks of the concrete foundation until the cracks are saturated and filled;

[0106] Step S5, standing for a period of time, and using a knocking tool to knock around the cracks in the concrete foundation;

[0107] Step S6, judging whether re-casting is required according to whether bubbles appear in the cracks of the concrete foundation;

[0108] Among them, setting the width value is related to the parameters and design values ​​of the corresponding concrete;

[0109] The entire fracture is saturated and filled when the oil liquid no longer enters the fracture during the process of injecting the oil liquid.

[0110] Standing for a period of time is associated with oily liquids.

[0111] Specifically, in step S2, the step of comparing the measurement result with the set width value and determining whether repair is needed includes:

[0112] Step S201, comparing the measurement result with the first width value;

[0113] Step S202, comparing the measurement result with the second width value;

[0114] The first width value and the second width value are related to parameters of the corresponding concrete.

[0115] Specifically, in step S201, if the measurement result is less than the first width value, it is determined that the concrete foundation crack needs further inspection;

[0116] If the measurement result is greater than or equal to the first width value, proceed to the next step.

[0117] Specifically, in step S2012, if the measurement result is less than the second width value, it is determined that the concrete foundation crack needs to be repaired;

[0118] If the measurement result is greater than or equal to the second width value, it is determined that the concrete foundation crack needs to be recast.

[0119] Specifically, in step S6, whether the steel bars exposed in the cracks of the concrete foundation are oxidized and corroded is determined according to whether bubbles appear in the cracks of the concrete foundation. If oxidized and corroded, re-casting is required;

[0120] When the steel bars are oxidized and corroded, cracks will form on the surface, and oily liquid will enter the cracks. By knocking on the cracks around the concrete foundation, vibrations will be generated, allowing bubbles to be discharged from the upper surface.

[0121] Specifically, the steel bars inside the cracks are deeply inspected by infiltrating them with oily materials, which effectively avoids the problem of cavities forming in the cracks during the later repair process, further improves the accuracy of the repair of cracked concrete foundations and saves materials.

[0122] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0123] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A repair system for a cracked concrete foundation, characterized in that: include: A detection module, which is used to perform quality detection on concrete foundation cracks and form corresponding detection records; An analysis module, which is connected to the detection module, and is used to judge the state of the cracks in the concrete foundation according to the detection record, and to generate a feedback signal, a repair signal or a pouring signal according to the judgment result; A repair module, connected to the analysis module, for receiving the repair signal and the pouring signal respectively, and repairing or re-pour the concrete foundation cracks; Wherein, when the analysis module sends a feedback signal, the detection module performs a further detection on the cracks of the concrete foundation; When the analysis module sends a repair signal, the repair module repairs the concrete foundation cracks; When the analysis module sends a pouring signal, the repair module re-pours the concrete foundation cracks; The detection module comprises: A first detection unit, which is used to detect the width of the cracks in the concrete foundation and send the detection record to the analysis module; A second detection unit, which is used to receive the feedback signal, detect whether the steel bars in the cracks of the concrete foundation are oxidized, and send the detection record to the analysis module; The analysis module is provided with a first width value and a second width value. When the first detection unit completes a single detection of the width of the concrete foundation crack, the detection record is sent to the analysis module, and the analysis module determines the repair method of the concrete foundation crack according to the crack width value obtained by the detection; If the crack width value is less than the first width value, the analysis module determines that the concrete foundation crack needs further detection, and at this time the analysis module sends a feedback signal to the second detection unit; If the crack width value is greater than or equal to the first width value and less than the second width value, the analysis module determines that the concrete foundation crack needs to be repaired, and sends the repair signal to the repair module; If the crack width value is greater than or equal to the second width value, the analysis module determines that the concrete foundation crack needs to be recast, and sends the casting signal to the repair module; The first width value and the second width value are related to parameters of the corresponding concrete; When the second detection unit receives the feedback signal, it performs steel bar detection on the cracks in the concrete foundation; The steel bar detection is a process of using oily liquid to saturate and fill the cracks in the concrete foundation for detection; If the steel bar detection determines that the steel bars exposed in the concrete foundation cracks are corroded, recasting the concrete foundation cracks; If the steel bar detection determines that the steel bars exposed in the concrete foundation cracks are not corroded, the concrete foundation cracks are repaired.

2. The repair system for cracked concrete foundation according to claim 1, characterized in that: When the repair module receives the repair signal, it performs basic repair work on the concrete foundation cracks; When the pouring signal is received, re-pour the concrete foundation cracks; The foundation repair work is carried out without damaging the existing concrete foundation.

3. The repair system for cracked concrete foundation according to claim 2, characterized in that: When the second detection unit saturates and fills the entire fracture, the second detection unit determines that the saturated filling is completed when the second detection unit detects that the oil liquid no longer enters the fracture during the process of pouring the oil liquid.

4. The repair system for cracked concrete foundation according to claim 3, characterized in that: When determining the crack size, the detection module also uses a sealing material to seal the crack surface of the concrete foundation and exposes its corresponding upper surface to the air.

5. The repair system for cracked concrete foundation according to claim 4, characterized in that: After receiving the repair signal, the repair module performs corresponding repair work according to the different width values ​​of the concrete foundation cracks.

6. The repair system for cracked concrete foundation according to claim 5, characterized in that: When the second detection unit has completed saturation filling of the entire crack, the crack is left to stand for a preset time and knocks around the crack of the concrete foundation; If bubbles appear in the cracks of the concrete foundation, the analysis module determines that the cracked steel bars corresponding to the concrete foundation are oxidized, and determines that the concrete foundation should be recast; If no bubbles appear in the cracks of the concrete foundation, the analysis module determines that the steel bars of the concrete foundation are not oxidized, and determines to repair the concrete foundation; The preset time duration is related to the viscosity coefficient of the oily liquid.

7. The repair system for cracked concrete foundation according to claim 6, characterized in that: When the detection module uses a sealing material to seal the crack surface of the concrete foundation, if the crack of the concrete foundation does not have the upper surface, a test gap is reserved on the upper part of the crack for oil filling and observation; The width of the test gap is related to the size of the crack.