Concrete strength measuring system and method for civil construction engineering

Abstract

The invention relates to the technical field of concrete strength measurement, and discloses a concrete strength measurement system and method for civil construction engineering, and the system comprises a data acquisition module, a concrete data analysis module and a strength measurement and evaluation module, the data acquisition module comprises an intensity data acquisition unit, an appearance data acquisition unit, an accident data acquisition unit and an environment data acquisition unit. According to the system, the actual condition of concrete can be more comprehensively known by collecting data in multiple aspects, so that the accuracy of concrete strength measurement is improved, analysis is comprehensively performed based on an initial strength coefficient, a damage influence coefficient and an environment influence coefficient, and the accuracy of concrete strength measurement is improved. By analyzing the strength, damage and environment of the concrete, potential problems can be found in time, a basis is provided for follow-up maintenance and reinforcement, and the problems can be found and processed in time by monitoring the strength and condition of the concrete in real time, so that the maintenance cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of concrete strength measurement, and in particular to a concrete strength measurement system and method for civil construction engineering. Background Art

[0002] As a major building material, concrete is an artificial stone made of cementitious materials, granular aggregates, water, and admixtures and additives added when necessary in a certain proportion, which are uniformly stirred, compacted, and cured and hardened. It has the characteristics of abundant raw materials, low price, and simple production process. At the same time, concrete also has the characteristics of high compressive strength, good durability, and a wide range of strength grades. The above characteristics make it widely used in construction projects. Therefore, in order to ensure the quality of concrete building applications, its strength needs to be accurately tested. However, the existing concrete strength detection technology has a low degree of intelligence, and there is no way to evaluate the strength of concrete in real time, which affects the timeliness of strength detection. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a concrete strength measurement system and method for civil construction projects, which has the advantages of timely discovering and handling problems by real-time monitoring of the strength and condition of concrete, thereby solving the above-mentioned technical problems.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a concrete strength measurement system for civil construction engineering, comprising a data acquisition module, a concrete data analysis module and a strength measurement and evaluation module;

[0005] The data acquisition module includes a strength data acquisition unit, an appearance data acquisition unit, an accident data acquisition unit and an environment data acquisition unit. The strength data acquisition unit is used to acquire the strength data of the current concrete sample during several pressure tests. The appearance data acquisition module is used to acquire surface crack image data of several target areas. The accident data acquisition unit is used to acquire accident damage data of several target areas. The environment data acquisition unit is used to acquire environment data after the construction of the target area is completed.

[0006] The concrete data analysis module includes a strength analysis unit, a damage analysis unit and an environment analysis unit. The strength analysis unit constructs an initial strength coefficient based on the strength data of the current concrete sample during several pressure tests. The damage analysis unit constructs a damage influence coefficient based on surface crack image data and accident damage data. The environment analysis unit constructs an environment influence coefficient based on environment data.

[0007] The strength measurement and evaluation module performs a comprehensive analysis based on the initial strength coefficient, the damage influence coefficient and the environmental influence coefficient, outputs the current concrete strength estimation coefficient, and determines whether to issue an early warning.

[0008] As a preferred technical solution of the present invention, the specific expression of the strength data acquisition unit for acquiring the strength data of the current concrete sample during several pressure tests is as follows:

[0009]

[0010] in, represents the intensity dataset, Respectively represent The strength data obtained by strength testing of concrete samples is The strength test is specifically to load a 150 mm cube under a press until it is damaged and record the maximum load.

[0011] As a preferred technical solution of the present invention, the specific expression of the appearance data acquisition module for acquiring surface crack image data of several target areas is as follows:

[0012]

[0013] in, represents the surface crack image dataset, Respectively represent Surface crack data of concrete building areas, , the image of the corresponding target location is taken by the drone and recognized by the image recognition algorithm, and the Surface crack data of concrete building areas The specific expression is as follows:

[0014]

[0015] in, Indicates The shooting area of ​​the concrete building area, Indicates The surface crack area of ​​a concrete building area.

[0016] As a preferred technical solution of the present invention, the specific expression of the accident data collection unit for collecting accident damage data of several target areas is as follows:

[0017]

[0018] in, represents the accident damage dataset, The number of natural disasters. Indicates the number of collision accidents, obtained through regional traffic data and meteorological data.

[0019] As a preferred technical solution of the present invention, the specific expression of the environmental data acquisition unit for collecting environmental data after the construction of the target area is completed is as follows:

[0020]

[0021] in, represents the environment dataset, Respectively represent Environmental data for concrete building areas, , the image of the corresponding target location is taken by the drone and recognized by the image recognition algorithm, and the Environmental data for concrete building areas The specific expression is as follows:

[0022]

[0023] in, Indicates The shooting area of ​​the concrete building area, Indicates the surface coverage of algae, moss and plants on the concrete building area.

[0024] As a preferred technical solution of the present invention, the strength analysis unit constructs a specific expression of the initial strength coefficient based on the strength data of the current concrete sample during several pressure tests as follows:

[0025]

[0026] in, represents the initial strength coefficient, represents the minimum value in the intensity data set, Indicates The strength data obtained from the strength tests of the concrete specimens are summed up.

[0027] As a preferred technical solution of the present invention, the damage analysis unit constructs a specific expression of the damage influence coefficient based on the surface crack image data and the accident damage data as follows:

[0028]

[0029] in, represents the damage influence coefficient, Indicates Surface crack data of concrete building areas, Indicates Environmental data for concrete building areas, The number of natural disasters. Indicates the number of collision accidents. represents the balance coefficient, Indicates The surface crack data of each concrete building area are summed.

[0030] As a preferred technical solution of the present invention, the specific expression of the environmental impact coefficient constructed by the environmental analysis unit based on the environmental data is as follows:

[0031]

[0032] in, represents the environmental impact coefficient, Indicates The environmental data of each concrete building area is summed.

[0033] As a preferred technical solution of the present invention, the strength measurement and evaluation module performs a comprehensive analysis based on the initial strength coefficient, the damage influence coefficient and the environmental influence coefficient, and outputs the specific expression of the current concrete strength estimation coefficient as follows:

[0034]

[0035] in, represents the initial strength coefficient, represents the damage influence coefficient, represents the environmental impact coefficient, Indicates the current concrete strength estimation coefficient;

[0036] If the current concrete strength estimation coefficient When the concrete strength estimation coefficient is lower than the concrete strength estimation threshold, a strength measurement warning is issued and maintenance is required. When the concrete strength is not lower than the estimated threshold, no strength measurement warning will be issued.

[0037] The present invention provides a method for measuring the strength of concrete for civil engineering construction projects, which uses the above-mentioned concrete strength measuring system for civil engineering construction projects and comprises the following steps:

[0038] Step 1: Obtain the strength data of concrete samples in the target area during several pressure tests, the image data of concrete surface cracks in the target area, the accident damage data of concrete in the target area, and the environmental data after the construction of the target area is completed;

[0039] Step 2: construct an initial strength coefficient based on the strength data of the current concrete specimen during several pressure tests;

[0040] Step 3: Construct the damage influence coefficient based on the surface crack image data and accident damage data;

[0041] Step 4: Construct environmental impact coefficient based on environmental data after the completion of construction in the target area;

[0042] Step 5: Based on the comprehensive analysis of the initial strength coefficient, damage influence coefficient and environmental influence coefficient, output the current concrete strength estimation coefficient and determine whether to issue an early warning.

[0043] Compared with the prior art, the present invention provides a concrete strength measurement system and method for civil construction engineering, which has the following beneficial effects:

[0044] The present invention can more comprehensively understand the actual condition of concrete by collecting data from multiple aspects, such as strength, appearance, accidents and environment, thereby improving the accuracy of concrete strength measurement. It can output the current concrete strength estimation coefficient based on a comprehensive analysis of the initial strength coefficient, damage influence coefficient and environmental influence coefficient. By analyzing the strength, damage and environment of concrete, potential problems can be discovered in time, providing a basis for subsequent maintenance and reinforcement. By real-time monitoring of the strength and condition of concrete, problems can be discovered and handled in time to avoid the expansion of problems, thereby reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a schematic diagram of the system framework of the present invention;

[0046] Figure 2 It is a schematic diagram of the process of the present invention. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] See also Figure 1-2 , a concrete strength measurement system for civil construction engineering, comprising a data acquisition module, a concrete data analysis module and a strength measurement and evaluation module;

[0049] The data acquisition module includes a strength data acquisition unit, an appearance data acquisition unit, an accident data acquisition unit and an environment data acquisition unit. The strength data acquisition unit is used to collect the strength data of the current concrete sample during several pressure tests. The appearance data acquisition module is used to collect surface crack image data of several target areas. The accident data acquisition unit is used to collect accident damage data of several target areas. The environment data acquisition unit is used to collect environmental data after the construction of the target area is completed.

[0050] The specific expression of the strength data acquisition unit used to collect the strength data of the current concrete sample during several pressure tests is as follows:

[0051]

[0052] in, represents the intensity dataset, Respectively represent The strength data obtained by strength testing of concrete samples is The strength test is specifically to load a 150 mm cube under a press until it is damaged and record the maximum load.

[0053] The specific expression of the appearance data acquisition module for collecting surface crack image data of several target areas is as follows:

[0054]

[0055] in, represents the surface crack image dataset, Respectively represent Surface crack data of concrete building areas, , the image of the corresponding target location is taken by the drone and recognized by the image recognition algorithm, and the Surface crack data of concrete building areas The specific expression is as follows:

[0056]

[0057] in, Indicates The shooting area of ​​the concrete building area, Indicates The surface crack area of ​​a concrete building area is detected by converting the colored concrete surface image into a grayscale image to reduce the amount of data and highlight the contrast between the crack and the concrete background. For example, the Canny operator first uses Gaussian blur to smooth the image, then calculates the gradient amplitude and direction, and finally obtains the edge image through non-maximum suppression and double threshold processing, which can accurately detect the edge of the crack.

[0058] The specific expression of the accident data collection unit for collecting accident damage data of several target areas is as follows:

[0059]

[0060] in, represents the accident damage dataset, The number of natural disasters. Indicates the number of collision accidents, obtained through regional traffic data and meteorological data.

[0061] The specific expression of the environmental data collection unit used to collect environmental data after the construction of the target area is completed is as follows:

[0062]

[0063] in, represents the environment dataset, Respectively represent Environmental data for concrete building areas, , the image of the corresponding target location is taken by the drone and recognized by the image recognition algorithm, and the Environmental data for concrete building areas The specific expression is as follows:

[0064]

[0065] in, Indicates The shooting area of ​​the concrete building area, Indicates the surface area of ​​concrete buildings covered by algae, mosses, and plants. Plants usually have unique color features, and can be identified by analyzing the color distribution in the image. For example, calculate the mean, variance, and other statistics of different color channels (red, green, and blue) in the image, or use a color histogram to describe the color characteristics of plants. These color features can serve as an important basis for plant identification. For example, using network architectures such as ResNeXt and DenseNet, these networks can better learn the subtle features of plants by increasing the width and depth of the network;

[0066] The concrete data analysis module includes a strength analysis unit, a damage analysis unit and an environment analysis unit. The strength analysis unit constructs an initial strength coefficient based on the strength data of the current concrete sample during several pressure tests. The damage analysis unit constructs a damage influence coefficient based on surface crack image data and accident damage data. The environment analysis unit constructs an environmental influence coefficient based on environmental data.

[0067] The strength measurement and evaluation module conducts a comprehensive analysis based on the initial strength coefficient, damage influence coefficient and environmental influence coefficient, outputs the current concrete strength estimation coefficient, and determines whether to issue an early warning.

[0068] The specific expression of the initial strength coefficient constructed by the strength analysis unit based on the strength data of the current concrete sample during several pressure tests is as follows:

[0069]

[0070] in, represents the initial strength coefficient, represents the minimum value in the intensity data set, Indicates The strength data obtained from the strength tests of concrete samples are summed up, and the initial strength coefficient is constructed based on the data of multiple pressure tests, making the strength assessment more scientific. By analyzing the strength data under different test conditions, the influence of accidental factors can be eliminated, and a coefficient that better reflects the true strength state of concrete can be obtained.

[0071] The specific expression of the damage influence coefficient constructed by the damage analysis unit based on the surface crack image data and accident damage data is as follows:

[0072]

[0073] in, represents the damage influence coefficient, Indicates Surface crack data of concrete building areas, Indicates Environmental data for concrete building areas, The number of natural disasters. Indicates the number of collision accidents. represents the balance coefficient, Indicates The surface crack data of each concrete building area are summed.

[0074] The specific expression of the environmental impact coefficient constructed by the environmental analysis unit based on environmental data is as follows:

[0075]

[0076] in, represents the environmental impact coefficient, Indicates The environmental data of each concrete building area are summed up, and environmental factors are incorporated into the concrete strength evaluation system, which improves the accuracy and reliability of the evaluation. Environmental factors have an important influence on the durability and strength of concrete. Considering environmental factors can make the evaluation results more in line with actual conditions.

[0077] The strength measurement and evaluation module conducts a comprehensive analysis based on the initial strength coefficient, damage influence coefficient and environmental influence coefficient, and outputs the specific expression of the current concrete strength estimation coefficient as follows:

[0078]

[0079] in, represents the initial strength coefficient, represents the damage influence coefficient, represents the environmental impact coefficient, Indicates the current concrete strength estimation coefficient;

[0080] If the current concrete strength estimation coefficient When the concrete strength estimation coefficient is lower than the concrete strength estimation threshold, a strength measurement warning is issued and maintenance is required. When the concrete strength is not lower than the estimated threshold, no strength measurement warning is issued. For example, in the construction and maintenance of large bridges, the strength measurement assessment module can comprehensively consider the initial strength, damage and environmental factors of the concrete and output an accurate strength estimation coefficient. If the assessment results show that the concrete strength is lower than the safety threshold or has a downward trend, a warning is issued in time so that reinforcement and repair measures can be taken to ensure the safe operation of the bridge.

[0081] Embodiment: The data recorded in this embodiment are as follows Table 1:

[0082] Table 1

[0083] parameter Specific values #timg# #timg# #timg# #timg# #timg# #timg# #timg# #timg# #timg# 0.365 Concrete strength estimation threshold 15

[0084] Calculate now , which can reflect the average initial strength of the current concrete quality. , ,calculate is greater than the concrete strength estimation threshold of 15, thereby enabling the pre-estimation of the actual concrete strength; when the concrete strength estimation coefficient When the concrete strength falls below the estimated threshold, a strength measurement warning is issued, requiring staff to perform maintenance, thereby ensuring the safety of the concrete components after construction.

[0085] The present invention provides a method for measuring the strength of concrete for civil engineering construction projects, which uses the above-mentioned concrete strength measuring system for civil engineering construction projects and comprises the following steps:

[0086] Step 1: Obtain the strength data of concrete samples in the target area during several pressure tests, the image data of concrete surface cracks in the target area, the accident damage data of concrete in the target area, and the environmental data after the construction of the target area is completed;

[0087] Step 2: construct an initial strength coefficient based on the strength data of the current concrete specimen during several pressure tests;

[0088] Step 3: Construct the damage influence coefficient based on the surface crack image data and accident damage data;

[0089] Step 4: Construct environmental impact coefficient based on environmental data after the completion of construction in the target area;

[0090] Step 5: Based on the comprehensive analysis of the initial strength coefficient, damage influence coefficient and environmental influence coefficient, output the current concrete strength estimation coefficient and determine whether to issue an early warning.

[0091] 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 concrete strength measurement system for civil construction engineering, characterized in that: It includes data acquisition module, concrete data analysis module and strength measurement and evaluation module; The data acquisition module includes a strength data acquisition unit, an appearance data acquisition unit, an accident data acquisition unit and an environment data acquisition unit. The strength data acquisition unit is used to acquire the strength data of the current concrete sample during several pressure tests. The appearance data acquisition module is used to acquire surface crack image data of several target areas. The accident data acquisition unit is used to acquire accident damage data of several target areas. The environment data acquisition unit is used to acquire environment data after the construction of the target area is completed. The concrete data analysis module includes a strength analysis unit, a damage analysis unit and an environment analysis unit. The strength analysis unit constructs an initial strength coefficient based on the strength data of the current concrete sample during several pressure tests. The damage analysis unit constructs a damage influence coefficient based on surface crack image data and accident damage data. The environment analysis unit constructs an environment influence coefficient based on environment data. The strength measurement and evaluation module performs a comprehensive analysis based on the initial strength coefficient, the damage influence coefficient and the environmental influence coefficient, outputs the current concrete strength estimation coefficient, and determines whether to issue an early warning.

2. A concrete strength measurement system for civil construction engineering according to claim 1, characterized in that: The specific expression of the strength data acquisition unit for acquiring the strength data of the current concrete sample during several pressure tests is as follows: in, represents the intensity dataset, Respectively represent The strength data obtained by strength testing of concrete samples is The strength test is specifically to load a 150 mm cube under a press until it is damaged and record the maximum load.

3. A concrete strength measurement system for civil construction engineering according to claim 2, characterized in that: The specific expression of the appearance data acquisition module for acquiring surface crack image data of several target areas is as follows: in, represents the surface crack image dataset, Respectively represent Surface crack data of concrete building areas, , the image of the corresponding target location is taken by the drone and recognized by the image recognition algorithm, and the Surface crack data of concrete building areas The specific expression is as follows: in, Indicates The shooting area of ​​the concrete building area, Indicates The surface crack area of ​​a concrete building area.

4. A concrete strength measurement system for civil construction engineering according to claim 3, characterized in that: The specific expression of the accident data collection unit for collecting accident damage data of several target areas is as follows: in, represents the accident damage dataset, The number of natural disasters. Indicates the number of collision accidents, obtained through regional traffic data and meteorological data.

5. A concrete strength measurement system for civil construction engineering according to claim 4, characterized in that: The specific expression of the environmental data acquisition unit for collecting environmental data after the target area is completed is as follows: in, represents the environment dataset, Respectively represent Environmental data for concrete building areas, , the image of the corresponding target location is taken by the drone and recognized by the image recognition algorithm, and the Environmental data for concrete building areas The specific expression is as follows: in, Indicates The shooting area of ​​the concrete building area, Indicates the surface coverage of algae, moss and plants on the concrete building area.

6. A concrete strength measurement system for civil construction engineering according to claim 5, characterized in that: The strength analysis unit constructs the specific expression of the initial strength coefficient based on the strength data of the current concrete sample during several pressure tests as follows: in, represents the initial strength coefficient, represents the minimum value in the intensity data set, Indicates The strength data obtained from the strength tests of the concrete specimens are summed up.

7. A concrete strength measurement system for civil construction engineering according to claim 6, characterized in that: The damage analysis unit constructs a specific expression of the damage influence coefficient based on the surface crack image data and the accident damage data as follows: in, represents the damage influence coefficient, Indicates Surface crack data of concrete building areas, Indicates Environmental data for concrete building areas, The number of natural disasters. Indicates the number of collision accidents. represents the balance coefficient, Indicates The surface crack data of each concrete building area are summed.

8. A concrete strength measurement system for civil construction engineering according to claim 7, characterized in that: The specific expression of the environmental impact coefficient constructed by the environmental analysis unit based on the environmental data is as follows: in, represents the environmental impact coefficient, Indicates The environmental data of each concrete building area is summed.

9. A concrete strength measurement system for civil construction engineering according to claim 8, characterized in that: The strength measurement and evaluation module performs a comprehensive analysis based on the initial strength coefficient, damage influence coefficient and environmental influence coefficient, and outputs the specific expression of the current concrete strength estimation coefficient as follows: in, represents the initial strength coefficient, represents the damage influence coefficient, represents the environmental impact coefficient, Indicates the current concrete strength estimation coefficient; If the current concrete strength estimation coefficient When the concrete strength estimation coefficient is lower than the concrete strength estimation threshold, a strength measurement warning is issued and maintenance is required. When the concrete strength is not lower than the estimated threshold, no strength measurement warning will be issued.

10. A method for measuring concrete strength for civil engineering construction, using a concrete strength measuring system for civil engineering construction as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Obtain the strength data of concrete samples in the target area during several pressure tests, the image data of concrete surface cracks in the target area, the accident damage data of concrete in the target area, and the environmental data after the construction of the target area is completed; Step 2: construct an initial strength coefficient based on the strength data of the current concrete specimen during several pressure tests; Step 3: Construct the damage influence coefficient based on the surface crack image data and accident damage data; Step 4: Construct environmental impact coefficient based on environmental data after the completion of construction in the target area; Step 5: Based on the comprehensive analysis of the initial strength coefficient, damage influence coefficient and environmental influence coefficient, output the current concrete strength estimation coefficient and determine whether to issue an early warning.

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