A deflection evaluation method, device, electronic device and medium for crack diseases

Abstract

The present invention relates to a deflection evaluation method, device, electronic device and medium for crack diseases, including: obtaining multiple groups of deflection values according to a first detection device, obtaining the depth and width of multiple groups of cracks according to a second detection device, obtaining multiple groups of overall moduli of structural layers according to the multiple groups of deflection values, and determining multiple groups of deflection influence ranges according to a preset fluctuation range of the multiple groups of deflection values; fitting the depth and width of the multiple groups of cracks with the multiple groups of deflection influence ranges and the multiple groups of overall moduli of structural layers to obtain the fitting relationship between the depth and width of the cracks and the deflection influence range, the fitting relationship between the depth and width of the cracks and the overall modulus of the structural layer, and the fitting relationship between the multiple groups of deflection influence ranges and the multiple groups of overall moduli of structural layers; and finally evaluating the crack diseases according to these three fitting relationships. The present invention improves the detection method of crack diseases, making the detection results more in line with the actual situation.

Description

Technical Field

[0001] The present invention relates to the technical field of road engineering, and particularly relates to a method, device, electronic device and medium for evaluating the deflection of crack diseases. Background Art

[0002] In recent years, with the development of science and technology, road non-destructive testing technologies represented by the falling weight deflectometer technology have been widely used in the quality inspection of asphalt pavements. The falling weight deflectometer technology can accurately evaluate the bearing capacity of the asphalt pavement structural layer.

[0003] The main idea of the current research on the deflection change of typical diseases using the falling weight deflectometer technology is to start from the perspective of indoor numerical simulation. By computer-simulating the action of the falling weight deflectometer on the pavement structure model, the dynamic deflection basin of the pavement is obtained. The researcher analyzes the change law of the deflection basin index by changing the parameters of the pavement structural layer. However, through indoor numerical simulation calculations, although a large amount of deflection data and modulus data can be obtained, there are still certain differences between the simulated pavement stress conditions and the actual pavement stress conditions. Therefore, it is urgent to comprehensively consider experimental testing and numerical simulation for research to clarify the influence of crack diseases on the characteristics of the asphalt pavement deflection basin. Summary of the Invention

[0004] In view of this, it is necessary to provide a method, device, electronic device and medium for evaluating the deflection of crack diseases to solve the problem that the traditional method cannot quantitatively evaluate the deflection influence range of crack diseases.

[0005] On the one hand, the present invention provides a method for evaluating the deflection of crack diseases, including:

[0006] Obtaining multiple groups of deflection values at a plurality of preset marking points on the road section to be measured based on a first detection device;

[0007] Determining the overall modulus of the structural layers at the plurality of preset marking points based on the deflection values at the plurality of preset marking points;

[0008] Obtaining the widths and depths of multiple groups of cracks at a plurality of preset marking points based on a second detection device;

[0009] Determining multiple groups of deflection influence ranges according to the preset fluctuation range of the multiple groups of deflection values;

[0010] Fitting the widths and depths of the multiple groups of cracks with the multiple groups of deflection influence ranges to obtain a first fitting relationship between the widths and depths of the cracks and the deflection influence ranges;

[0011] Fitting the widths and depths of the multiple groups of cracks with the overall modulus of the structural layers to obtain a second fitting relationship between the widths and depths of the cracks and the overall modulus of the structural layers;

[0012] Fit the multiple groups of deflection influence ranges with the multiple groups of overall moduli of the structural layers to obtain a third fitting relationship between the deflection influence range and the overall modulus of the structural layer;

[0013] Evaluate the crack disease based on the first fitting relationship, and / or, the second fitting relationship, and / or, the third fitting relationship.

[0014] In some possible implementation manners, the cracks include surface cracks and hidden cracks.

[0015] In some possible implementation manners, when the cracks include surface cracks, the expression of the fitting relationship between the width and depth of the cracks and the deflection influence range is:

[0016] z = -20.55 + 1.65y - 0.08

[0017] In the formula: x represents the width of the surface crack, in mm; y represents the depth of the surface crack, in mm; z represents the deflection influence range, in cm.

[0018] In some possible implementation manners, when the cracks include hidden cracks, the expression of the fitting relationship between the width and depth of the cracks and the deflection influence range is:

[0019] c = 1.64a - 19.74b - 32.60

[0020] In the formula: a represents the depth of the hidden crack, in mm; b represents the width of the hidden crack, in mm; c represents the deflection influence range, in cm.

[0021] In some possible implementation manners, the expression of the fitting relationship between the deflection influence range corresponding to the surface crack and the overall modulus of the structural layer corresponding to the surface crack is:

[0022] j = 0.9599 2 -239.45i + 13557

[0023] In the formula: i represents the deflection influence range corresponding to the surface crack, in mm; j represents the overall resilient modulus of the structural layer corresponding to the surface crack, in MPa.

[0024] In some possible implementation manners, the expression of the fitting relationship between the deflection influence range corresponding to the hidden crack and the overall modulus of the structural layer corresponding to the hidden crack is:

[0025] w = 0.1794h 2 -104.8h + 14923

[0026] Where: h represents the deflection influence range corresponding to the hidden crack, with the unit of mm; w represents the overall resilient modulus of the structural layer corresponding to the hidden crack, with the unit of MPa.

[0027] In some possible implementation manners, evaluating the crack disease based on the first fitting relationship, and / or, the second fitting relationship, and / or, the third fitting relationship includes:

[0028] Based on the first fitting relationship and the first crack depth and the first crack width obtained by the second detection device, obtaining the first deflection influence range;

[0029] and / or, obtaining the first overall modulus of the structural layer based on the second fitting relationship and the first crack depth and the first crack width;

[0030] and / or, obtaining the second overall modulus of the structural layer based on the third fitting relationship and the first deflection influence range;

[0031] Evaluating the crack disease according to the magnitude of the first deflection influence range and the first overall modulus of the structural layer and / or, the second overall modulus of the structural layer.

[0032] On the other hand, the present invention also provides a device for evaluating the deflection of crack diseases, including:

[0033] A deflection value acquisition unit, configured to acquire multiple groups of deflection values at a plurality of preset points in the road section to be measured based on the first detection device;

[0034] An overall modulus acquisition unit of the structural layer, configured to acquire multiple groups of overall moduli of the structural layer at the plurality of preset points based on the deflection values at the plurality of preset points;

[0035] A crack width and depth acquisition unit, configured to acquire the widths and depths of multiple groups of cracks at the plurality of preset points based on the second detection device;

[0036] A deflection influence range acquisition unit, configured to acquire multiple groups of deflection influence ranges determined according to the preset fluctuation range of the multiple groups of deflection values;

[0037] A first fitting relationship construction unit, configured to fit the widths and depths of the multiple groups of cracks with the multiple groups of deflection influence ranges to obtain a first fitting relationship between the widths and depths of the cracks and the deflection influence ranges;

[0038] A second fitting relationship construction unit, configured to fit the widths and depths of the multiple groups of cracks with the multiple groups of overall moduli of the structural layer to obtain a second fitting relationship between the widths and depths of the cracks and the overall moduli of the structural layer;

[0039] A third fitting relationship construction unit, configured to fit the multiple groups of deflection influence ranges and the multiple groups of overall moduli of structural layers to obtain a third fitting relationship between the deflection influence range and the overall modulus of the structural layer;

[0040] A data processing unit, configured to evaluate the crack disease based on the first fitting relationship, and / or the second fitting relationship, and / or the third fitting relationship.

[0041] On the other hand, the present invention further provides an electronic device, including a memory and a processor. The memory is configured to store a program; the processor is coupled to the memory and is configured to execute the program stored in the memory to implement the steps in a method for evaluating deflection of crack disease according to any one of the above implementation manners.

[0042] On the other hand, the present invention further provides a computer-readable storage medium, configured to store a computer-readable program or instruction, and when the program or instruction is executed by a processor, it can implement the steps in a method for evaluating deflection of crack disease according to any one of the above implementation manners.

[0043] The beneficial effects of adopting the above embodiments are as follows: A method for evaluating deflection of crack disease provided by the present invention first obtains multiple groups of deflection values at several measuring points based on a first detection device, then calculates multiple groups of overall moduli of structural layers by inverse calculation according to the multiple groups of deflection values, obtains multiple groups of crack depths and widths at several measuring points based on a second detection device, determines multiple groups of deflection influence ranges according to the average value of the fluctuations of the multiple groups of deflection values to the normal road surface, and then fits the depth and width of the multiple groups of cracks with the multiple groups of deflection influence ranges and the multiple groups of overall moduli of structural layers to obtain a first fitting relationship between the depth and width of the cracks and the deflection influence range, a second fitting relationship between the depth and width of the cracks and the overall modulus of the structural layer, and a third fitting relationship between the multiple groups of deflection influence ranges and the multiple groups of overall moduli of structural layers; finally, evaluates the crack disease according to these three fitting relationships. Substituting the width and depth of the cracks obtained according to the second detection device into the first fitting relationship can obtain the deflection influence range. Substituting the obtained deflection influence range into the third fitting relationship can obtain the overall modulus of the structural layer. Substituting the width and depth of the cracks obtained according to the second detection device into the second fitting relationship can obtain the overall modulus of the structural layer. Substituting the obtained overall modulus of the structural layer into the third fitting relationship can obtain the deflection influence range. The present invention establishes an inverse calculation relationship between the crack size and the deflection influence range, solves the problem that the traditional method cannot quantitatively evaluate the deflection influence range of crack disease, establishes a relationship between the deflection influence range and the overall modulus of the structural layer, and can clarify the characteristics of the deflection basin around the crack disease and its influence degree on the surrounding resilient modulus. Description of the Drawings

[0044] Figure 1 Flowchart of a method for evaluating deflection of crack diseases provided by the present invention;

[0045] Figure 2 Comparison chart of disease deflection value results;

[0046] Figure 3 Schematic structural diagram of an embodiment of a device for evaluating deflection of crack diseases provided by the present invention;

[0047] Figure 4 Schematic structural diagram of an embodiment of an electronic device provided by the present invention. Detailed implementation manners

[0048] The following will specifically describe the preferred embodiments of the present invention in conjunction with the accompanying drawings. The accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to explain the principles of the present invention, rather than to limit the scope of the present invention.

[0049] Referring to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of the present invention. The phrase does not necessarily refer to the same embodiment at each occurrence in the specification, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0050] The present invention provides a method, device, electronic device and medium for evaluating deflection of crack diseases, which will be described separately below.

[0051] Please refer to Figure 1 , Figure 1 Schematic flowchart of an embodiment of a method for evaluating deflection of crack diseases provided by the present invention. A specific embodiment of the present invention discloses a method for evaluating deflection of crack diseases, including:

[0052] S101. Obtain multiple groups of deflection values at a plurality of preset measuring points on the road section to be measured based on the first detection device;

[0053] S102. Determine the overall modulus of multiple structural layers at the plurality of preset measuring points based on the deflection values at the plurality of preset measuring points;

[0054] S103. Obtain the widths and depths of multiple groups of cracks at the plurality of preset measuring points based on the second detection device;

[0055] S104. Determine multiple groups of deflection influence ranges according to the preset fluctuation range of the multiple groups of deflection values;

[0056] S105. Fit the widths and depths of the multiple groups of cracks with the multiple groups of deflection influence ranges to obtain a first fitting relationship between the widths and depths of the cracks and the deflection influence ranges.

[0057] S106. Fit the widths and depths of the multiple groups of cracks with the multiple groups of overall moduli of the structural layers to obtain a second fitting relationship between the widths and depths of the cracks and the overall moduli of the structural layers.

[0058] S107. Fit the multiple groups of deflection influence ranges with the multiple groups of overall moduli of the structural layers to obtain a third fitting relationship between the deflection influence ranges and the overall moduli of the structural layers.

[0059] S108. Evaluate the crack diseases based on the first fitting relationship, and / or the second fitting relationship, and / or the third fitting relationship.

[0060] Compared with the prior art, a method for evaluating the deflection of crack diseases provided in this embodiment first obtains multiple groups of deflection values at several measuring points based on the first detection device, then calculates the multiple groups of overall moduli of the structural layers by back-calculating according to the multiple groups of deflection values, obtains the multiple groups of crack depths and widths at several measuring points based on the second detection device, determines the multiple groups of deflection influence ranges according to the fluctuation of the multiple groups of deflection values to the average value of the normal road surface, and then fits the depths and widths of the multiple groups of cracks with the multiple groups of deflection influence ranges and the multiple groups of overall moduli of the structural layers to obtain a first fitting relationship between the depths and widths of the cracks and the deflection influence ranges, a second fitting relationship between the depths and widths of the cracks and the overall moduli of the structural layers, and a third fitting relationship between the multiple groups of deflection influence ranges and the multiple groups of overall moduli of the structural layers obtained by fitting; finally, evaluate the crack diseases according to these three fitting relationships. Substitute the widths and depths of the cracks obtained according to the second detection device into the first fitting relationship to obtain the deflection influence range. Substitute the obtained deflection influence range into the third fitting relationship to obtain the overall modulus of the structural layer. Substitute the widths and depths of the cracks obtained according to the second detection device into the second fitting relationship to obtain the overall modulus of the structural layer. Substitute the obtained overall modulus of the structural layer into the third fitting relationship to obtain the deflection influence range. The present invention establishes an inverse calculation relationship between the crack size and the deflection influence range, solves the problem that the traditional method cannot quantitatively evaluate the deflection influence range of crack diseases, and establishes a relationship between the deflection influence range and the overall modulus of the structural layer, which can clarify the characteristics of the deflection basin around the crack diseases and their influence degree on the surrounding resilient modulus.

[0061] It should be noted that Figure 2It is a comparison chart of the deflection values for diseases. In step S101, the first detection device is a falling weight deflectometer (abbreviated as FWD). In the specific implementation of this embodiment, a CFWD-10T full-automatic falling weight deflectometer is used. Table 1 shows the technical parameters of the CFWD-10T full-automatic falling weight deflectometer.

[0062] Table 1

[0063]

[0064] The working principle of the falling weight deflectometer is as follows: The falling weight assembly lifted to a certain height falls freely, and an impact force is applied to the loading plate equipped with a force sensor through the hammer head, causing it to displace. The displacement is measured by the installed displacement sensor. This force and displacement are immediately measured and the maximum value of the impact load felt by the road surface and the corresponding maximum deflection value of the road surface are displayed on the deflection test software. The entire measurement process is automatically completed under the control of a laptop computer program.

[0065] It should be noted that in step S103, the second detection device is a ground penetrating radar, and the ground penetrating radar can obtain the widths and depths of multiple groups of cracks at a preset number of measuring points.

[0066] In some embodiments of the present invention, the cracks include surface cracks and hidden cracks.

[0067] It should be noted that in step S102, based on the deflection values at a preset number of measuring points, the overall modulus of multiple groups of structural layers at the preset number of measuring points is determined. Specifically, in step S101, the deflection values at the preset number of measuring points are obtained, the units of the deflection values at the preset number of measuring points are converted, and the load at the measuring point position is converted into pressure. According to the SIDMOD software, the resilient modulus of the road surface structure layer is calculated, and the overall modulus of the road surface structure layer is calculated based on this result. The calculation formula is as follows:

[0068]

[0069] In the formula: Ex is the overall modulus of the road surface structure layer, with the unit of MPa; h1 is the thickness of the surface layer, with the unit of cm; h2 is the thickness of the base composite layer, with the unit of cm; E1 is the back-calculated modulus of the surface layer, with the unit of MPa; E2 is the back-calculated modulus of the base composite layer, with the unit of MPa.

[0070] In the specific embodiment of the present invention, according to the above method, the results of calculating the on-site modulus of the road surface are as follows: Table 2 shows the calculation of the overall modulus of the road surface structure layer at the surface crack, and Table 3 shows the calculation of the overall modulus of the road surface structure layer at the hidden crack.

[0071] Table 2

[0072]

[0073]

[0074] Table 3

[0075]

[0076] It should be noted that in step S104, the multiple groups of deflection influence ranges are determined according to the preset fluctuation ranges of the multiple groups of deflection values. Specifically, the deflection values at different distances from the crack center at one of the preset multiple marking points on the road section to be measured are obtained by the first detection device; the average deflection value of the deflection values at different distances from the crack center determines the second deflection influence range. By analogy, the deflection values at different distances from the crack center at multiple marking points determine multiple groups of deflection influence ranges. Taking the surface crack depth of 132 mm as an example, its influence range on the deflection is ±40 cm from the crack center.

[0077] In a specific embodiment of the present invention, Table 4 shows the one-to-one correspondence between the depths and widths of different surface cracks and the corresponding deflection values. It can be seen from Table 4 that there are significant differences in the center deflection values of surface cracks with different depths and widths. The farther away from the center deflection, the smaller the difference; the influence of the surface crack depth on the center deflection is greater than that of the width, and as the surface crack depth increases, the center deflection value continuously increases. Based on the above rules, in order to explore the influence rules of the changes in the depth and width of surface cracks on the deflection values around the cracks, so as to propose targeted maintenance plans, the deflection values at the crack center are selected for deflection tests at different distances from the crack center, and the test data are shown in Table 5.

[0078] Table 4

[0079]

[0080] Table 5

[0081]

[0082] It can be seen from Table 5 that for the intact road surface, that is, when the surface crack depth is 0, the deflection values at the center point and its two sides nearby do not change much, but the deflection value changes greatly around the crack; in order to analyze the changes in the deflection values at the crack center and its vicinity, taking the deflection value fluctuating to the average deflection value of the normal road surface as the boundary, the deflection influence range is calculated. The deflection influence ranges corresponding to different surface crack depths and widths are calculated respectively, and the different surface crack depths and widths are in one-to-one correspondence with the corresponding deflection influence ranges, as shown in Table 6. Table 6 shows the different surface crack depths and widths and the deflection influence ranges.

[0083] Table 6

[0084] Crack depth / mm 132 123 164 173 194 0 Crack width / mm 8.7 8.6 9.2 6.8 5.8 0 Influence range / cm 40 35 85 110 225 0

[0085] It should be noted that according to the deflection values collected on-site by the falling weight deflectometer and the deflection values obtained through encrypted detection during the local detection of the falling weight deflectometer, the depth and width of the surface cracks are fitted one by one with the corresponding deflection influence ranges. In some embodiments of the present invention, when the cracks include surface cracks, the fitting relationship expression between the width and depth of the cracks and the deflection influence range is:

[0086] z = -20.55x + 1.65y - 0.08

[0087] In the formula: x represents the width of the surface crack, with the unit of mm; y represents the depth of the surface crack, in mm; z represents the deflection influence range, with the unit of cm.

[0088] It should be noted that similar to the principle of surface cracks, encrypted dot detection is carried out around the hidden cracks to measure the deflection law at different distances from the center of the hidden cracks. Table 7 shows the deflection values corresponding to different hidden cracks.

[0089] Table 7

[0090]

[0091] As can be seen from Table 7, there are significant differences in the center deflection values of hidden cracks with different depths and widths. The farther away from the center deflection, the smaller the difference; as the depth of the hidden crack increases, the center deflection value continuously increases. Based on the above rules, in order to explore the influence law of the change in the depth of hidden cracks on the deflection values around the cracks, so as to propose a targeted maintenance plan, the center deflection value of the crack is selected for deflection tests at different distances from the center of the crack, and the test data are shown in Table 8. Table 8 shows the deflection values at different distances from the center of the hidden crack.

[0092] Table 8

[0093]

[0094] As can be seen from Table 8, for the intact road surface, that is, the depth of the hidden crack is 0, the deflection values at the center of the deflection and near its two sides change little, but the deflection values change greatly around the hidden crack. Analyzing the change in the deflection values at the center and near the crack, taking the hidden crack with a depth of 276 mm as an example, its influence range on the deflection is ±280 cm from the center of the crack. At the same time, the deflection influence ranges corresponding to the depths and widths of different hidden cracks are respectively identified, as shown in Table 9. Table 9 shows the deflection influence ranges corresponding to different depths and widths of hidden cracks.

[0095] Table 9

[0096] Crack depth / mm 276 237 205 286 217 264 0 Crack width / mm 9.6 9.2 8.6 5.0 4.4 4.8 0 Influence range / cm 280 175 100 420 150 265 0

[0097] In some embodiments of the present invention, when the crack includes a hidden crack, the fitting relationship expression between the width and depth of the crack and the deflection influence range is:

[0098] c = 1.64a - 19.74b - 32.60

[0099] Where: a represents the depth of the hidden crack, in mm; b represents the width of the hidden crack, in mm; c represents the deflection influence range, in cm.

[0100] It should be noted that in order to obtain the correlation between the deflection influence range and the resilient modulus, therefore, the fitting relationship between the width and depth of the crack and the overall modulus of the structural layer is established. In step S106, the widths and depths of the multiple groups of cracks are fitted with the multiple groups of overall moduli of the structural layer to obtain the second fitting relationship between the width and depth of the crack and the overall modulus of the structural layer. Specifically, the fitting relationship between the width and depth of the surface crack and the corresponding overall modulus of the structural layer is:

[0101] s = -2.70u - 1546.28t + 17186.58

[0102] Where, u represents the depth of the surface crack, in mm; t represents the width of the surface crack, in mm; s represents the overall modulus of the structural layer corresponding to the surface crack.

[0103] The fitting relationship between the width and depth of the hidden crack and the corresponding overall modulus of the structural layer is:

[0104] k = -48.24m - 369.97n + 16492.35

[0105] Where, m represents the depth of the hidden crack, in mm; n represents the width of the hidden crack, in mm; k represents the overall modulus of the structural layer corresponding to the hidden crack.

[0106] It should be noted that in order to further accurately evaluate the bearing capacity of the surface crack and the surrounding pavement structure, the deflection influence range corresponding to the surface crack is correlated with the resilient modulus. In some embodiments of the present invention, the fitting relationship expression between the deflection influence range corresponding to the surface crack and the overall modulus of the structural layer corresponding to the surface crack is:

[0107] j = 0.9599 2 -239.45i + 13557

[0108] Where: i represents the deflection influence range corresponding to the surface crack, in mm; j represents the overall resilient modulus of the structural layer corresponding to the surface crack, in MPa.

[0109] It should be noted that, in order to further accurately evaluate the hidden cracks and the bearing capacity of the surrounding pavement structure, the deflection influence range corresponding to the hidden cracks is correlated with the resilient modulus. In some embodiments of the present invention, the fitting relationship expression between the deflection influence range corresponding to the hidden cracks and the overall modulus of the structural layer corresponding to the hidden cracks is:

[0110] w = 0.1794h 2 -104.8h + 14923

[0111] In the formula: h represents the deflection influence range corresponding to the hidden cracks, with the unit of mm; w represents the overall resilient modulus of the structural layer corresponding to the hidden cracks, with the unit of MPa.

[0112] In some embodiments of the present invention, the crack disease is evaluated based on the first fitting relationship, and / or, the second fitting relationship, and / or, the third fitting relationship, including:

[0113] Based on the first fitting relationship and the first crack depth and the first crack width obtained by the second detection device, the first deflection influence range is obtained;

[0114] And / or, based on the second fitting relationship and the first crack depth and the first crack width, the first overall modulus of the structural layer is obtained;

[0115] And / or, based on the third fitting relationship and the first deflection influence range, the second overall modulus of the structural layer is obtained;

[0116] The crack disease is evaluated according to the magnitude of the first deflection influence range and the first overall modulus of the structural layer and / or, the second overall modulus of the structural layer.

[0117] In order to better implement a method for evaluating the deflection of crack diseases in the embodiments of the present invention, on the basis of a method for evaluating the deflection of crack diseases, correspondingly, as Figure 3 shown, the embodiments of the present invention further provide a device for evaluating the deflection of crack diseases. A device 300 for evaluating the deflection of crack diseases includes:

[0118] A deflection value acquisition unit 301, configured to acquire multiple groups of deflection values at a plurality of preset points in the road section to be measured based on the first detection device;

[0119] An overall modulus acquisition unit 302 of the structural layer, configured to acquire multiple groups of overall moduli of the structural layer at the plurality of preset points based on the deflection values at the plurality of preset points;

[0120] A crack width and depth acquisition unit 303, configured to acquire the widths and depths of multiple groups of cracks at the plurality of preset points based on the second detection device;

[0121] The deflection influence range acquisition unit 304 is configured to acquire multiple groups of deflection influence ranges determined according to a preset fluctuation range of the multiple groups of deflection values;

[0122] The first fitting relationship construction unit 305 is configured to fit the widths and depths of the multiple groups of cracks with the multiple groups of deflection influence ranges to obtain a first fitting relationship between the widths and depths of the cracks and the deflection influence ranges;

[0123] The second fitting relationship construction unit 306 is configured to fit the widths and depths of the multiple groups of cracks with the multiple groups of overall moduli of the structural layers to obtain a second fitting relationship between the widths and depths of the cracks and the overall moduli of the structural layers;

[0124] The third fitting relationship construction unit 307 is configured to fit the multiple groups of deflection influence ranges with the multiple groups of overall moduli of the structural layers to obtain a third fitting relationship between the deflection influence ranges and the overall moduli of the structural layers;

[0125] The data processing unit 308 is configured to evaluate the crack diseases based on the first fitting relationship, and / or the second fitting relationship, and / or the third fitting relationship.

[0126] It should be noted here that: the device 300 provided in the above embodiment can implement the technical solutions described in the above method embodiments. The specific implementation principles of the above modules or units can be referred to the corresponding content in the above method embodiments, which will not be elaborated here.

[0127] As Figure 4 shown, the present invention also correspondingly provides an electronic device 400. The electronic device 400 includes a processor 401, a memory 402, and a display 403. Figure 4 Only some components of the electronic device 400 are shown, but it should be understood that it is not required to implement all the shown components, and more or fewer components can be implemented alternatively.

[0128] The processor 401 may be a central processing unit (CPU), a microprocessor, or other data processing chips in some embodiments, and is configured to run the program code stored in the memory 402 or process data, such as a method for evaluating crack diseases in the present invention.

[0129] In some embodiments, the processor 401 may be a single server or a server group. The server group may be centralized or distributed. In some embodiments, the processor 401 may be local or remote. In some embodiments, the processor 401 may be implemented on a cloud platform. In one embodiment, the cloud platform may include a private cloud, a public cloud, a hybrid cloud, a community cloud, a distributed cloud, an internal cloud, a multi-cloud, etc., or any combination of the above.

[0130] In some embodiments, the memory 402 may be an internal storage unit of the electronic device 400, such as the hard disk or memory of the electronic device 400. In other embodiments, the memory 402 may also be an external storage device of the electronic device 400, such as a plug-in hard disk equipped on the electronic device 400, a Smart Media Card (SMC), a Secure Digital (SD) card, a Flash Card, etc.

[0131] Furthermore, the memory 402 may also include both the internal storage unit of the electronic device 400 and the external storage device. The memory 402 is used to store the application software installed in the electronic device 400 and various types of data.

[0132] In some embodiments, the display 403 may be an LED display, a liquid crystal display, a touch liquid crystal display, and an OLED (Organic Light-Emitting Diode) touch device, etc. The display 403 is used to display the information in the electronic device 400 and to display the visual user interface. The components 401 - 403 of the electronic device 400 communicate with each other through the system bus.

[0133] In one embodiment, when the processor 401 executes a deflection evaluation program for crack diseases in the memory 402, the following steps can be achieved:

[0134] Obtain multiple groups of deflection values at a plurality of preset marking points on the road section to be measured based on the first detection device;

[0135] Determine the overall modulus of multiple groups of structural layers at the plurality of preset marking points based on the deflection values at the plurality of preset marking points;

[0136] Obtain the widths and depths of multiple groups of cracks at the plurality of preset marking points based on the second detection device;

[0137] Determine multiple groups of deflection influence ranges according to the preset fluctuation range of the multiple groups of deflection values;

[0138] Fit the widths and depths of the multiple groups of cracks with the multiple groups of deflection influence ranges to obtain a first fitting relationship between the widths and depths of the cracks and the deflection influence ranges;

[0139] Fit the widths and depths of the multiple groups of cracks with the multiple groups of overall moduli of the structural layers to obtain a second fitting relationship between the widths and depths of the cracks and the overall moduli of the structural layers;

[0140] Fit the multiple groups of deflection influence ranges with the multiple groups of overall moduli of the structural layers to obtain a third fitting relationship between the deflection influence ranges and the overall moduli of the structural layers;

[0141] Evaluate the crack disease based on the first fitting relationship, and / or the second fitting relationship, and / or the third fitting relationship.

[0142] It should be understood that when the processor 401 executes a crack disease deflection evaluation program in the memory 402, in addition to the above functions, other functions can also be implemented. For specific details, please refer to the description of the corresponding method embodiments above.

[0143] Furthermore, the embodiments of the present invention do not specifically limit the type of the mentioned electronic device 400. The electronic device 400 can be a portable electronic device such as a mobile phone, a tablet computer, a personal digital assistant (PDA), a wearable device, a laptop computer, etc. Exemplary embodiments of the portable electronic device include, but are not limited to, portable electronic devices equipped with IOS, android, microsoft or other operating systems. The above-mentioned portable electronic devices can also be other portable electronic devices, such as a laptop computer with a touch-sensitive surface (such as a touch panel). It should also be understood that in some other embodiments of the present invention, the electronic device 400 can also not be a portable electronic device, but a desktop computer with a touch-sensitive surface (such as a touch panel).

[0144] Correspondingly, an embodiment of the present application also provides a computer-readable storage medium. The computer-readable storage medium is used to store a computer-readable program or instruction. When the program or instruction is executed by a processor, it can implement the steps or functions in a crack disease deflection evaluation method provided by each of the above method embodiments.

[0145] Those skilled in the art can understand that all or part of the processes for implementing the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The program can be stored in a computer-readable storage medium. Among them, the computer-readable storage medium is a magnetic disk, an optical disk, a read-only memory or a random access memory, etc.

[0146] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention.

Claims

1. A deflection evaluation method for crack diseases, characterized in that, Including: Obtaining multiple groups of deflection values at several preset measuring points on the road section to be measured based on a first detection device; Determining the overall modulus of multiple structural layers at the several preset measuring points based on the deflection values at the several preset measuring points; Obtaining the widths and depths of multiple groups of cracks at the several preset measuring points based on a second detection device, where the cracks include surface cracks and hidden cracks; Determining multiple groups of deflection influence ranges according to the preset fluctuation range of the multiple groups of deflection values; Fitting the widths and depths of the multiple groups of cracks with the multiple groups of deflection influence ranges to obtain a first fitting relationship between the widths and depths of the cracks and the deflection influence ranges; Fitting the widths and depths of the multiple groups of cracks with the multiple groups of overall moduli of the structural layers to obtain a second fitting relationship between the widths and depths of the cracks and the overall moduli of the structural layers; Fitting the multiple groups of deflection influence ranges with the multiple groups of overall moduli of the structural layers to obtain a third fitting relationship between the deflection influence ranges and the overall moduli of the structural layers; Evaluating the crack diseases based on the first fitting relationship, the second fitting relationship, and the third fitting relationship; The expression of the fitting relationship between the deflection influence range corresponding to the surface crack and the overall modulus of the structural layer corresponding to the surface crack is: In the formula: i represents the deflection influence range corresponding to the surface crack, with the unit of mm; j represents the overall resilient modulus of the structural layer corresponding to the surface crack, with the unit of MPa; The expression of the fitting relationship between the deflection influence range corresponding to the hidden crack and the overall modulus of the structural layer corresponding to the hidden crack is: w =0.1794 h 2 -104.8 h +14923 In the formula: h represents the deflection influence range corresponding to the hidden crack, with the unit of mm; w represents the overall resilient modulus of the structural layer corresponding to the hidden crack, with the unit of MPa; The obtaining of multiple groups of deflection values at several preset measuring points on the road section to be measured based on the first detection device includes: Converting the units of the deflection values at the several preset measuring points and converting the load at the measuring point position into pressure, calculating the resilient modulus of the road surface structural layer according to the SIDMOD software, and calculating the overall modulus of the road surface structural layer based on this result. The calculation formula is as follows: In the formula: Ex is the overall modulus of the road surface structural layer, with the unit of MPa; h1 is the thickness of the surface layer, with the unit of cm; h2 is the thickness of the base combined layer, with the unit of cm; E1 is the back-calculated modulus of the surface layer, with the unit of MPa; E2 is the back-calculated modulus of the base combined layer, with the unit of MPa.

2. The deflection evaluation method for crack diseases according to claim 1, characterized in that When the cracks include surface cracks, the expression of the fitting relationship between the width and depth of the cracks and the deflection influence range is: Wherein: represents the width of the surface crack, in mm; represents the depth of the surface crack, in mm; represents the deflection influence range, in cm.

3. The deflection evaluation method for crack diseases according to claim 1, wherein, When the cracks include hidden cracks, the expression of the fitting relationship between the width and depth of the cracks and the deflection influence range is: In the formula: represents the depth of the hidden crack, in mm; represents the width of the hidden crack, in mm; represents the deflection influence range, in cm.

4. The deflection evaluation method for crack diseases according to claim 1, wherein, Evaluating the crack diseases based on the first fitting relationship, the second fitting relationship, and the third fitting relationship includes: Obtaining a first deflection influence range based on the first fitting relationship, the first crack depth, and the first crack width obtained based on the second detection device; Obtaining a first overall modulus of the structural layer based on the second fitting relationship, the first crack depth, and the first crack width; Obtaining a second overall modulus of the structural layer based on the third fitting relationship and the first deflection influence range; Evaluate the crack disease according to the first deflection influence range, the overall modulus of the first structural layer, and the overall modulus of the second structural layer.

5. A deflection evaluation device for crack diseases, characterized in that, Including: A deflection value acquisition unit, configured to acquire multiple groups of deflection values at a plurality of preset marking points on the road section to be measured based on a first detection device; An overall modulus acquisition unit of the structural layer, configured to acquire multiple groups of overall moduli of the structural layer at the plurality of preset marking points based on the deflection values at the plurality of preset marking points; A crack width and depth acquisition unit, configured to acquire multiple groups of widths and depths of cracks at the plurality of preset marking points based on a second detection device, where the cracks include surface cracks and hidden cracks; A deflection influence range acquisition unit, configured to acquire multiple groups of deflection influence ranges determined according to a preset fluctuation range of the multiple groups of deflection values; A first fitting relationship construction unit, configured to fit the widths and depths of the multiple groups of cracks with the multiple groups of deflection influence ranges to obtain a first fitting relationship between the width and depth of the cracks and the deflection influence range; A second fitting relationship construction unit, configured to fit the widths and depths of the multiple groups of cracks with the multiple groups of overall moduli of the structural layer to obtain a second fitting relationship between the width and depth of the cracks and the overall modulus of the structural layer; A third fitting relationship construction unit, configured to fit the multiple groups of deflection influence ranges with the multiple groups of overall moduli of the structural layer to obtain a third fitting relationship between the deflection influence range and the overall modulus of the structural layer; A data processing unit, configured to evaluate the crack disease based on the first fitting relationship, and / or the second fitting relationship, and / or the third fitting relationship; The expression of the fitting relationship between the deflection influence range corresponding to the surface crack and the overall modulus of the structural layer corresponding to the surface crack is: In the formula: i represents the deflection influence range corresponding to the surface crack, with the unit of mm; j represents the overall resilient modulus of the structural layer corresponding to the surface crack, with the unit of MPa; The expression of the fitting relationship between the deflection influence range corresponding to the hidden crack and the overall modulus of the structural layer corresponding to the hidden crack is: w =0.1794 h 2 -104.8 h +14923 In the formula: h represents the deflection influence range corresponding to the hidden crack, with the unit of mm; w represents the overall resilient modulus of the structural layer corresponding to the hidden crack, with the unit of MPa; The acquisition of multiple groups of deflection values at a plurality of preset marking points on the road section to be measured based on the first detection device includes: Converting the units of the deflection values at the plurality of preset marking points and converting the load at the marking positions into pressure, calculating the resilient modulus of the road surface structural layer according to the SIDMOD software, and calculating the overall modulus of the road surface structural layer based on this result. The calculation formula is as follows: In the formula: Ex is the overall modulus of the road surface structural layer, with the unit of MPa; h1 is the thickness of the surface layer, with the unit of cm; h2 is the thickness of the base combination layer, with the unit of cm; E1 is the back-calculated modulus of the surface layer, with the unit of MPa; E2 is the back-calculated modulus of the base combination layer, with the unit of MPa.

6. An electronic device, characterized in that, Including a memory and a processor, where The memory is used to store programs; The processor is coupled to the memory and is configured to execute the program stored in the memory to implement the steps in any one of the above-mentioned methods for evaluating crack disease by deflection as claimed in claims 1 to 5.

7. A computer-readable storage medium, characterized in that, For storing computer-readable programs or instructions, when the programs or instructions are executed by a processor, they can implement the steps in a deflection evaluation method for crack diseases described in any one of the above claims 1 to 5.

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