Concrete pavement integrity assessment method, device, equipment and storage medium

Abstract

This invention belongs to the field of road assembly technology and discloses a method, device, equipment, and storage medium for evaluating the integrity of concrete pavement. The method includes: obtaining a bending fatigue remaining life factor based on stiffness information; obtaining a bidirectional load transfer capacity factor for the assembled surface based on the difference in longitudinal and transverse loading displacements and the weights of the longitudinal and transverse load transfer coefficients; obtaining a structural interlayer vertical deformation coordination factor based on the assembled surface displacement, support layer displacement, and displacement tolerance; and obtaining a dynamic integrity index based on multiple factors for integrity evaluation. This invention quantifies pavement performance from three key dimensions—fatigue life, load transfer, and interlayer deformation—by calculating the bending fatigue remaining life factor, the bidirectional load transfer capacity factor for the assembled surface, and the structural interlayer vertical deformation coordination factor. It not only reflects the instantaneous state but also adjusts with changes in load and environment, enabling real-time evaluation during construction acceptance and long-term monitoring, thus improving the timeliness and accuracy of the evaluation.

Description

Technical Field

[0001] This invention relates to the field of road assembly technology, and in particular to a method, apparatus, equipment and storage medium for assessing the integrity of concrete pavement. Background Technology

[0002] Prefabricated concrete pavement systems are a new type of road structure. By transporting prefabricated units to the site and quickly assembling them into a pavement structure, they offer advantages over traditional cement concrete and asphalt pavements, including shorter construction time, environmental friendliness, and higher mechanization. With the development of prefabricated pavement technology, various prefabricated pavement structural forms and construction methods have emerged both domestically and internationally. However, there is no unified evaluation standard to judge the collaborative working mechanism of prefabricated pavement structures or to conduct construction acceptance testing. Summary of the Invention

[0003] In view of this, it is necessary to provide a method, apparatus, equipment and storage medium for assessing the integrity of concrete pavement, in order to solve the technical problem of inaccurate assessment of concrete pavement integrity.

[0004] To address the above problems, this invention provides a method for assessing the integrity of concrete pavement, comprising:

[0005] The flexural fatigue remaining life factor is obtained based on the initial stiffness and current stiffness of the concrete pavement. The flexural fatigue remaining life factor characterizes the influence of the initial stiffness and the current stiffness on the service life of the concrete pavement.

[0006] The bidirectional load transfer capacity factor of the assembled surface is obtained based on the longitudinal loading displacement difference, the transverse loading displacement difference, the transverse load transfer coefficient weight, and the longitudinal load transfer coefficient weight of the concrete pavement. The bidirectional load transfer capacity factor of the assembled surface characterizes the influence of the longitudinal loading displacement difference, the transverse loading displacement difference, the transverse load transfer coefficient weight, and the longitudinal load transfer coefficient weight on the load transfer capacity of the concrete pavement.

[0007] The vertical deformation coordination factor between structural layers is obtained based on the displacement of the assembled surface of the concrete pavement, the displacement of the supporting layer, and the displacement tolerance value. The vertical deformation coordination factor between structural layers characterizes the influence of the displacement of the assembled surface, the displacement of the supporting layer, and the displacement tolerance value on the vertical deformation of the concrete.

[0008] The dynamic integrity index is obtained by summing the bending fatigue remaining life factor, the bidirectional load transfer capacity factor of the assembly surface, and the vertical deformation coordination factor between structural layers.

[0009] The integrity of the concrete pavement is assessed based on the dynamic integrity index.

[0010] In one possible implementation, the stiffness information includes initial stiffness and current stiffness;

[0011] The method of obtaining the flexural fatigue remaining life factor based on the initial stiffness and current stiffness of the concrete pavement includes:

[0012] The stiffness ratio is obtained based on the initial stiffness and the current stiffness;

[0013] The bending fatigue remaining life factor is obtained based on the material parameters of the concrete pavement and the stiffness ratio.

[0014] In one possible implementation, obtaining the bidirectional load transfer capacity factor of the assembled surface based on the longitudinal loading displacement difference, the transverse loading displacement difference, the transverse load transfer coefficient weight, and the longitudinal load transfer coefficient weight of the concrete pavement includes:

[0015] The longitudinal dynamic load transfer efficiency and the transverse dynamic load transfer efficiency are obtained based on the longitudinal load displacement difference and the transverse load displacement difference of the concrete pavement.

[0016] The longitudinal dynamic load transfer efficiency and the weight of the longitudinal load transfer coefficient are multiplied together to obtain the longitudinal factor, and the lateral dynamic load transfer efficiency and the weight of the lateral load transfer coefficient are multiplied together to obtain the lateral factor.

[0017] The longitudinal factor and the transverse factor are added together to obtain the bidirectional load transfer capacity factor of the assembly surface.

[0018] In one possible implementation, the step of obtaining the inter-layer vertical deformation compatibility factor based on the assembly surface displacement of the concrete pavement, the support layer displacement, and the displacement tolerance value includes:

[0019] The displacement difference is obtained by subtracting the displacement of the concrete pavement assembly surface from the displacement of the supporting layer.

[0020] The vertical deformation coordination factor between structural layers is obtained by subtracting the ratio of the displacement difference to the displacement tolerance value from the preset value.

[0021] In one possible implementation, the step of accumulating the dynamic integrity index based on the bending fatigue remaining life factor, the bidirectional load transfer capacity factor of the assembly surface, and the vertical deformation compatibility factor between structural layers includes:

[0022] Obtain the preset unit board weight, preset assembly surface weight, and preset structure weight;

[0023] The unit plate coefficient is obtained by multiplying the bending fatigue remaining life factor and the preset unit plate weight; the assembly surface coefficient is obtained by multiplying the bidirectional load transfer capacity factor of the assembly surface and the preset assembly surface weight; and the structural system number is obtained by multiplying the vertical deformation coordination factor between structural layers and the preset structural body weight.

[0024] The dynamic integrity index is obtained by adding the unit plate coefficient, the assembly surface coefficient, and the structural system number.

[0025] In one possible implementation, the integrity assessment of the concrete pavement based on the dynamic integrity index includes:

[0026] Obtain the dynamic integrity threshold;

[0027] The integrity assessment of the dynamic integrity index is determined based on the dynamic integrity threshold.

[0028] In one possible implementation, the integrity assessment of determining the dynamic integrity index based on the dynamic integrity threshold includes:

[0029] Obtain the first, second, third, and fourth dynamic integrity thresholds, arranged from largest to smallest.

[0030] When the dynamic integrity index is greater than or equal to the first dynamic integrity threshold, structural integrity is used as the integrity assessment.

[0031] When the dynamic integrity index is less than the first dynamic integrity threshold and greater than or equal to the second dynamic integrity threshold, minor damage is used as an integrity assessment.

[0032] When the dynamic integrity index is less than the second dynamic integrity threshold and greater than or equal to the third dynamic integrity threshold, functional degradation is used as an integrity assessment.

[0033] When the dynamic integrity index is less than the third dynamic integrity threshold and greater than or equal to the fourth dynamic integrity threshold, critical failure is used as an integrity assessment.

[0034] When the dynamic integrity index is less than the fourth dynamic integrity threshold, structural failure is considered as an integrity assessment.

[0035] Furthermore, to achieve the above objectives, the present invention also proposes a concrete pavement integrity assessment device, the concrete pavement integrity assessment device comprising:

[0036] The integrity factor calculation module is used to obtain the flexural fatigue remaining life factor based on the initial stiffness and current stiffness of the concrete pavement. The flexural fatigue remaining life factor characterizes the influence of the initial stiffness and the current stiffness on the service life of the concrete pavement.

[0037] The integrity factor calculation module is also used to obtain the bidirectional load transfer capacity factor of the assembled surface based on the longitudinal loading displacement difference, the transverse loading displacement difference, the transverse load transfer coefficient weight and the longitudinal load transfer coefficient weight of the concrete pavement. The bidirectional load transfer capacity factor of the assembled surface characterizes the influence of the longitudinal loading displacement difference, the transverse loading displacement difference, the transverse load transfer coefficient weight and the longitudinal load transfer coefficient weight on the load transfer capacity of the concrete pavement.

[0038] The integrity factor calculation module is also used to obtain the interlayer vertical deformation coordination factor based on the assembly surface displacement, support layer displacement and displacement tolerance value of the concrete pavement. The interlayer vertical deformation coordination factor characterizes the influence of the assembly surface displacement, the support layer displacement and the displacement tolerance value on the vertical deformation of the concrete.

[0039] The integrity factor calculation module is also used to accumulate the dynamic integrity index based on the bending fatigue remaining life factor, the bidirectional load transfer capacity factor of the assembly surface, and the vertical deformation coordination factor between structural layers.

[0040] The concrete pavement assessment module is used to assess the integrity of the concrete pavement based on the dynamic integrity index.

[0041] Furthermore, to achieve the above objectives, the present invention also proposes an electronic device comprising: a memory, a processor, a display, and a concrete pavement integrity assessment program stored in the memory and executable on the processor, the concrete pavement integrity assessment program being configured to implement the steps of the concrete pavement integrity assessment method as described above.

[0042] In addition, to achieve the above objectives, the present invention also proposes a storage medium storing a concrete pavement integrity assessment program, wherein when the concrete pavement integrity assessment program is executed by a processor, it implements the steps of the concrete pavement integrity assessment method as described above.

[0043] The beneficial effects of adopting the above implementation method are as follows: by calculating the bending fatigue remaining life factor, the bidirectional load transfer capacity factor of the assembled surface, and the vertical deformation coordination factor between structural layers, the pavement performance is quantified from three key dimensions: fatigue life, load transfer, and interlayer deformation. The dynamic integrity index is obtained by combining the three factors, which not only reflects the instantaneous state of the pavement, but also adjusts with changes in load and environment. It can be used for real-time evaluation during construction acceptance and long-term monitoring, promptly identify problems, and improve the timeliness and accuracy of the evaluation. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is a flowchart illustrating the first embodiment of the concrete pavement integrity assessment method of the present invention;

[0046] Figure 2 This is a schematic diagram of load transfer between slabs under ideal conditions in the first embodiment of the concrete pavement integrity assessment method of the present invention;

[0047] Figure 3 This is a schematic diagram of load transfer between slabs under actual conditions in the first embodiment of the concrete pavement integrity assessment method of the present invention;

[0048] Figure 4 This is a schematic diagram illustrating the interlayer deformation transfer analysis between the unit plate and the support layer in the first embodiment of the concrete pavement integrity assessment method of the present invention.

[0049] Figure 5 This is a schematic diagram of the road integrity evaluation process for a road prefabricated concrete pavement system, as shown in the first embodiment of the concrete pavement integrity evaluation method of the present invention.

[0050] Figure 6 This is a flowchart illustrating the second embodiment of the concrete pavement integrity assessment method of the present invention;

[0051] Figure 7 This is a structural block diagram of the first embodiment of the concrete pavement integrity assessment device of the present invention;

[0052] Figure 8 This is a schematic diagram of the structure of the electronic device provided by the present invention. Detailed Implementation

[0053] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0054] In the description of the embodiments of this application, unless otherwise stated, "a plurality of" means two or more.

[0055] In this embodiment of the invention, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, apparatus, product or device that includes a series of steps or modules is not necessarily limited to those steps or modules that are explicitly listed, but may include other steps or modules that are not explicitly listed or that are inherent to such process, method, product or device.

[0056] The naming or numbering of steps in the embodiments of the present invention does not mean that the steps in the method flow must be executed in the time / logical order indicated by the naming or numbering. The execution order of the named or numbered process steps can be changed according to the technical purpose to be achieved, as long as the same or similar technical effect can be achieved.

[0057] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0058] The executing entity in this embodiment can be a computing service device with data processing, network communication, and program execution functions, such as a tablet computer, personal computer, or mobile phone, or an electronic device capable of performing the above functions, such as a concrete pavement integrity assessment device. The following description uses a concrete pavement integrity assessment device as an example to illustrate this embodiment and the subsequent embodiments.

[0059] This invention provides a method for assessing the integrity of concrete pavement, referring to... Figure 1 , Figure 1 This is a flowchart illustrating the first embodiment of the concrete pavement integrity assessment method of the present invention.

[0060] In this embodiment, the concrete pavement integrity assessment method includes steps S10 to S50:

[0061] Step S10: Obtain the flexural fatigue remaining life factor based on the initial stiffness and current stiffness of the concrete pavement. The flexural fatigue remaining life factor characterizes the influence of the initial stiffness and the current stiffness on the service life of the concrete pavement.

[0062] It should be noted that stiffness information can include the initial stiffness and current stiffness of the concrete pavement.

[0063] It should be noted that the bending fatigue remaining life factor is used to characterize the remaining bending fatigue life of a unit plate. The fatigue remaining life factor is the ratio of the remaining life to the total life, describing the decay of the remaining life with fatigue cycles.

[0064] It should be emphasized that the bending fatigue remaining life factor can be calculated based on the comprehensive damage variables after multiple cyclic loading, or it can be calculated based on the change in the stiffness of the concrete pavement. This embodiment describes the two cases separately.

[0065] In practical implementation, theoretically, the initial total lifetime can be assumed by calculating the comprehensive damage variables after multiple cyclic loading. The remaining lifespan is The introduction has gone through Comprehensive damage variables after the second loading cycle :

[0066]

[0067] in, The differential equations, similar to the modified Miner accumulation model, are as follows:

[0068]

[0069] in, This represents the local stress amplitude. For reference stress (such as the material's bending fatigue limit); , , These are material parameters, obtained through experimental fitting. The damage evolution rate coefficient is obtained by fitting multi-stress level fatigue test data; It is a stress sensitivity index; This is the damage nonlinearity index.

[0070] Furthermore, the bending fatigue remaining life factor It can be defined as:

[0071]

[0072] In one feasible implementation, step S10 may include steps A11-A12:

[0073] Step A11: Obtain the stiffness ratio based on the initial stiffness and the current stiffness.

[0074] It should be noted that in actual engineering, the stiffness ratio of concrete pavement is conventionally used to calculate the remaining life factor of flexural fatigue.

[0075] Specifically, the stiffness ratio can be expressed by the following formula: E i / E0, it should be noted that the above comprehensive damage variables The stiffness of the unit plate after loading can be measured using stiffness degradation theory and introduced into the macroscopic damage. and initial stiffness get.

[0076] Step A12: Obtain the bending fatigue remaining life factor based on the material parameters of the concrete pavement and the stiffness ratio.

[0077] It should be noted that the material parameters of concrete pavement can be understood as damage nonlinearity indices. The bending fatigue remaining life factor, calculated based on the damage nonlinearity index and the stiffness ratio, can be found using the following formula:

[0078]

[0079] It should be noted that the initial state of the unit board At that time, , , When fatigue life is reached ,but , .

[0080] Furthermore, the proposed unit plate bending fatigue remaining life factor It is related to the service life of the plate, i.e., the number of fatigue loads applied, to obtain accurate... The key lies in the consistency of bending fatigue testing methods. In the research, other testing methods can also be used to quickly obtain the bending fatigue remaining life factor of the unit plate to characterize the bending fatigue performance of the unit plate.

[0081] In this embodiment, the stiffness of the unit plate after use and the initial stiffness in the macroscopic damage are measured by the stiffness degradation theory to describe the comprehensive damage variable of the concrete pavement after long-term use. Based on the comprehensive damage variable, the remaining bending fatigue life of the unit plate of the concrete pavement can be described more conveniently without losing accuracy, so as to obtain a more accurate integrity evaluation of the concrete pavement by integrating multiple factors.

[0082] The above are merely feasible implementations of step S10 provided in this embodiment. This embodiment does not specifically limit the specific implementation of step S10.

[0083] Step S20: Obtain the bidirectional load transfer capacity factor of the assembled surface based on the longitudinal loading displacement difference, the transverse loading displacement difference, the transverse load transfer coefficient weight, and the longitudinal load transfer coefficient weight of the concrete pavement. The bidirectional load transfer capacity factor of the assembled surface characterizes the influence of the longitudinal loading displacement difference, the transverse loading displacement difference, the transverse load transfer coefficient weight, and the longitudinal load transfer coefficient weight on the load transfer capacity of the concrete pavement.

[0084] It should be noted that since the slab is primarily under load before bending failure, the overall integrity of the assembled panel mainly depends on the connectivity of the reinforcing bars and connectors. Therefore, based on a clear understanding of the overall performance degradation mechanism of the assembled panel, a two-way load transfer capacity factor of the assembled surface is proposed. Evaluate the overall integrity of prefabricated concrete pavement panels after splicing.

[0085] In one feasible implementation, step S20 may include steps A21 to A23:

[0086] Step A21: Obtain the longitudinal dynamic load transfer efficiency and the transverse dynamic load transfer efficiency based on the longitudinal loading displacement difference and the transverse loading displacement difference of the concrete pavement.

[0087] It should be noted that prefabricated concrete pavement specifically refers to a road prefabricated concrete pavement system assembled on site from precast concrete units. The core characteristic being evaluated is the presence of a large number of longitudinal and transverse assembly joints.

[0088] It is important to emphasize that when a load (such as a vehicle wheel) is applied to a precast slab, the load will be transferred to the adjacent slab through the joint due to the presence of the joint. The displacement difference refers to the difference in vertical displacement between the precast slab on the loaded side and the adjacent precast slab on the unloaded side at the edge of the joint under the load.

[0089] Furthermore, the longitudinal loading displacement difference can be understood as the displacement difference between the two plates on both sides of the joint when the load is transferred at the joint along the road driving direction (longitudinal); the transverse loading displacement difference refers to the displacement difference between the two plates on both sides of the joint when the load is transferred at the joint perpendicular to the road driving direction (transverse).

[0090] It should be understood that the smaller the displacement difference, the more coordinated the deformation of the plates on both sides of the joint, the better the load transfer effect, and the stronger the "integrity" of the joint. Conversely, the larger the displacement difference, the worse the load transfer capacity, the weaker the joint, and the more prone it is to damage.

[0091] It should be noted that the longitudinal and transverse loading displacement differences of the concrete pavement can be obtained by the falling weight deflectometer method or the sensor static loading method. The choice can be made according to the actual application scenario or usage requirements. This embodiment does not limit this.

[0092] In practical implementation, the vertical and horizontal dynamic load transfer efficiencies are denoted as DLTE. Z and DLTE H Considering the relative independence of the two, the longitudinal dynamic load transfer efficiency and the transverse dynamic load transfer efficiency, based on the longitudinal loading displacement difference and the transverse loading displacement difference of the concrete pavement, can be expressed as follows:

[0093]

[0094] in, , These represent the displacement differences under longitudinal and transverse loading, respectively. , This is the initial value. In the initial state... When completely ineffective .

[0095] Step A22: Multiply the longitudinal dynamic load transfer efficiency and the longitudinal load transfer coefficient weight to obtain the longitudinal factor, and multiply the lateral dynamic load transfer efficiency and the lateral load transfer coefficient weight to obtain the lateral factor.

[0096] It is understandable that the weights of the longitudinal load transfer coefficient and the lateral load transfer coefficient are preset values.

[0097] It should be noted that in pavement structures, the load frequency, magnitude, and impact on overall performance of longitudinal joints (parallel to the driving direction) and transverse joints (perpendicular to the driving direction) are different. For example, since vehicle loads are mainly transmitted longitudinally, the load transfer capacity of longitudinal joints may have a greater impact on pavement fatigue life, and therefore they are usually given a higher weight. These two weight values ​​are predetermined based on theoretical analysis, experimental data, and engineering experience, and their main function can be understood as distinguishing the contribution of load transfer performance in different directions to the overall "bidirectional load transfer capacity".

[0098] Step A23: Add the longitudinal factor and the transverse factor to obtain the bidirectional load transfer capacity factor of the assembly surface.

[0099] It is understandable that the longitudinal and transverse factors are combined to form a two-way load transfer capacity factor for the assembly surface, so as to evaluate the load transfer capacity of prefabricated concrete from two different dimensions of load transfer performance.

[0100] It should be noted that, considering both longitudinal and transverse load transfer capabilities, the bidirectional load transfer capability factor of the assembled surface is adopted. Evaluate the overall integrity of the assembled unit panels. It can be represented as:

[0101]

[0102] In the formula, , The weighting factors for the longitudinal and lateral load transfer coefficients are respectively. Under normal working conditions, the longitudinal direction, which is the overall direction of travel, is more important. A preliminary plan is proposed. , The different load transfer capacities between plates can be simulated by adjusting the tightness of the connectors.

[0103] It should be noted that the bidirectional load transfer capacity factor of the assembled surface reflects the degradation of the overall load transfer capacity of the assembled surface under multi-field coupling. When both the longitudinal and transverse directions reach an ideal state, such as... Figure 2 The diagram shows the load transfer between plates under ideal conditions. That is, prefabricated concrete pavement unit slabs form an ideal pavement whole on the plane, and their performance is comparable to that of continuously reinforced concrete pavement; when At times, such as Figure 3 The diagram shows the load transfer between slabs under actual conditions; when At that time, the assembled surface degenerates into a discrete unit plate paving form that is not a force transmission form.

[0104] In this embodiment, the importance of the longitudinal and transverse load transfer coefficients to the bidirectional load transfer capacity factor of the assembled surface is determined by pre-setting the longitudinal load transfer coefficient weight and the transverse load transfer coefficient weight. Based on the different importance settings of different dimensions, a more accurate bidirectional load transfer capacity factor of the assembled surface can be calculated, thereby providing a more accurate reference for evaluating the integrity of prefabricated concrete pavement.

[0105] The above are merely feasible implementations of step S20 provided in this embodiment. This embodiment does not specifically limit the specific implementation of step S20.

[0106] Step S30: Based on the displacement of the assembled surface of the concrete pavement, the displacement of the supporting layer, and the displacement tolerance value, the interlayer vertical deformation coordination factor is obtained. The interlayer vertical deformation coordination factor characterizes the influence of the displacement of the assembled surface, the displacement of the supporting layer, and the displacement tolerance value on the vertical deformation of the concrete.

[0107] It should be noted that the displacement of the assembly surface can refer to the vertical displacement (settlement or deformation) of the uppermost prefabricated assembly panel under load. The uppermost prefabricated assembly panel is the layer that directly bears the wheel load. The displacement of the uppermost prefabricated assembly panel reflects the stiffness of the panel itself and the combined response of the support plate under the panel under load.

[0108] It should be noted that the support layer displacement refers to the vertical displacement of the base layer or subbase (i.e., support layer) below the assembly surface under the same load. The support layer displacement reflects the solidity and bearing capacity of the base layer.

[0109] It is important to emphasize that a common problem with prefabricated pavement is the separation of layers. If the supporting layer is not compacted enough or is eroded, its displacement will not match the displacement of the panel, causing the panel to lose effective support.

[0110] It should be noted that the displacement tolerance value is a pre-set safety threshold or allowable limit value, which limits the maximum allowable interlayer displacement difference to ensure the long-term performance of the pavement. The displacement tolerance value can be pre-determined based on design specifications, material properties and engineering experience.

[0111] Furthermore, the displacement tolerance value can be used as a benchmark to judge whether the deformation is "coordinated". If the displacement difference is lower than this tolerance value, the coordination is considered to be good; if it is close to or exceeds this value, it means that there is a risk.

[0112] It should be emphasized that the displacement of the assembled surface of the concrete pavement and the displacement of the supporting layer can be obtained through static load test method, dynamic load test method, or continuous monitoring by pre-embedded sensors to obtain data in real time. This embodiment does not limit this and can be adjusted according to the actual use scenario and usage requirements.

[0113] It should be noted that the prefabricated concrete pavement system, formed by the assembly surface of the structural layer and its bonding with the base layer, depends on the collaborative working mechanism of the "slab-surface-body" structure. Ideally, the deformation between the assembly surface and the foundation support layer should be perfectly matched, i.e., the interlayer displacement should be consistent. However, in reality, due to support defects, material fatigue, and temperature effects, there are relative displacement differences between layers. This is addressed by incorporating the interlayer vertical deformation coordination factor. It characterizes the degree of interlayer bonding, i.e. the coordination of deformation transfer.

[0114] In one feasible implementation, step S30 may include steps A31-A32:

[0115] Step A31: Obtain the displacement difference by subtracting the displacement of the assembled surface of the concrete pavement from the displacement of the supporting layer.

[0116] Specifically, the displacement difference can be calculated using the following formula:

[0117]

[0118] in, , These represent the displacements of the assembly surface and the support layer, respectively, with Δω representing the displacement difference.

[0119] Step A32: Obtain the interlayer vertical deformation coordination factor by subtracting the ratio of the displacement difference to the displacement tolerance value from the preset value.

[0120] It should be noted that the vertical deformation compatibility factor between structural layers can be obtained by subtracting the ratio of the displacement difference to the displacement tolerance value from the preset value, using the following formula:

[0121]

[0122] in, To design tolerance values, f t This represents the vertical deformation compatibility factor between structural layers.

[0123] It is important to emphasize that, under ideal conditions, When completely emptied, .

[0124] Furthermore, considering the improved toughness of the unitized panels and the discontinuous contact state between layers, It is close to 1 and cannot be 0. A schematic diagram of the interlayer deformation transfer analysis between the unit plate and the support layer can be found here. Figure 4 , Figure 4 Interlayer displacement difference The larger it is, the worse the coordination. Approaching 0; when When the value approaches zero, the cumulative vertical deformation of the foundation support layer is completely transferred within the prefabricated concrete pavement system. Approaching 1. Even with rubber fiber reinforcement, the allowable bending toughness of the unit plate is still limited. With increasing service life, the vertical deformation of the top of the support layer will continue to increase due to the increased degree of voiding. When the wheel load exceeds the allowable range, the plate will break and re-establish contact with the base layer, i.e. After increasing to a certain value, it will remain relatively stable, but after a break or damage, a new contact relationship will be established. It will decrease.

[0125] In this embodiment, the coordination between the assembly surface and the support layer is determined by comparing the displacement difference between the assembly surface and the support layer with the designed displacement difference tolerance value, thereby accurately assessing the vertical deformation coordination factor between structural layers. In turn, the integrity of the concrete pavement can be accurately assessed based on the vertical deformation coordination factor between structural layers.

[0126] The above are merely feasible implementations of step S30 provided in this embodiment. This embodiment does not specifically limit the specific implementation of step S30.

[0127] Step S40: The dynamic integrity index is obtained by summing the bending fatigue remaining life factor, the bidirectional load transfer capacity factor of the assembly surface, and the vertical deformation coordination factor between structural layers.

[0128] It is understandable that calculating the dynamic integrity index based on the bending fatigue remaining life factor, the bidirectional load transfer capacity factor of the assembled surface, and the vertical deformation coordination factor between structural layers can fully consider the cascading and collaborative working characteristics of prefabricated concrete pavement “slab-surface-body”. Starting from slab fatigue, inter-slab connection and inter-layer coordination, it is proposed to define the dynamic integrity index (DII) to characterize the structural integrity of prefabricated concrete pavement.

[0129] Step S50: Assess the integrity of the concrete pavement based on the dynamic integrity index.

[0130] It should be noted that, based on the "slab-surface-volume" three-stage progressive deterioration mechanism of structural integrity, a failure criterion for the integrity of prefabricated concrete structures, which differs from that for cast-in-place concrete pavements, is established.

[0131] Understandably, the dynamic integrity index can be compared with the pre-set indices for different states of prefabricated concrete pavement, thereby assessing the integrity of the concrete pavement based on the dynamic integrity index.

[0132] In specific implementation, when If this occurs, the prefabricated concrete pavement system is considered to have failed, requiring maintenance or reinforcement measures. The value is a pre-set index for different states of prefabricated concrete pavement. It can be adapted to the index set according to the different pavement performance requirements of highways, general roads, urban roads, airport roads, etc. One or more of these indices can be set and adjusted according to the actual situation. The index is determined by calibration through on-site data.

[0133] This application constructs an evaluation system based on the coordinated working mechanism of "slab-surface-body" in prefabricated concrete pavement, avoiding the one-sidedness of a single evaluation indicator.

[0134] In one feasible implementation, step S50 may include steps A51-A52:

[0135] Step A51: Obtain the dynamic integrity threshold.

[0136] It should be noted that the dynamic integrity threshold in this embodiment includes a first dynamic integrity threshold, a second dynamic integrity threshold, a third dynamic integrity threshold, and a fourth dynamic integrity threshold, and the relationship between the first dynamic integrity threshold, the second dynamic integrity threshold, the third dynamic integrity threshold, and the fourth dynamic integrity threshold is from large to small.

[0137] Step A52: Determine the integrity assessment of the dynamic integrity index based on the dynamic integrity threshold.

[0138] It should be noted that when the dynamic integrity index is greater than or equal to the first dynamic integrity threshold, structural integrity is used as the integrity assessment; when the dynamic integrity index is less than the first dynamic integrity threshold but greater than or equal to the second dynamic integrity threshold, minor damage is used as the integrity assessment; when the dynamic integrity index is less than the second dynamic integrity threshold but greater than or equal to the third dynamic integrity threshold, functional degradation is used as the integrity assessment; when the dynamic integrity index is less than the third dynamic integrity threshold but greater than or equal to the fourth dynamic integrity threshold, critical failure is used as the integrity assessment; and when the dynamic integrity index is less than the fourth dynamic integrity threshold, structural failure is used as the integrity assessment.

[0139] The first dynamic integrity threshold can be set to 0.85, the second dynamic integrity threshold can be set to 0.75, the third dynamic integrity threshold can be set to 0.6, and the fourth dynamic integrity threshold can be set to 0.45.

[0140] A method for evaluating the road service integrity of prefabricated concrete pavement systems. Through data acquisition and testing, the cascading degradation mechanism, namely the fatigue performance of unit plates, is obtained. Load transfer capacity of the assembled surface Interlayer deformation coordination capability Next, calibrate the cascaded attenuation parameters of the "plate-surface-volume" system and determine the cooperative weighting coefficients of the "plate-surface-volume" system; finally, perform... Calculation. Determined based on the engineering requirements of different pavements. ,by Compare and determine the road integrity of the prefabricated concrete pavement system.

[0141] In practical implementation, the flowchart for evaluating the road integrity of prefabricated concrete pavement systems can be used as a reference. Figure 5 , Figure 5 The integrity evaluation process, which combines the specific values ​​of the first, second, third, and fourth dynamic integrity thresholds, first involves collecting and testing data on prefabricated pavement. Based on the collected data, the fatigue performance of unit plates, the load transfer capacity of the assembled surface, and the interlayer deformation coordination are obtained. Then, the cascade attenuation parameters of the "plate-surface-body" are calibrated, followed by the synergistic weight coefficient calibration of the "plate-surface-body". Based on the calibration results, the dynamic integrity index is calculated. According to the preset failure criteria of levels I-V, the standard of the dynamic integrity index is determined, thereby obtaining the integrity status of the corresponding prefabricated concrete pavement. Finally, an accurate decision is made based on the integrity status.

[0142] In this embodiment, by comparing the dynamic integrity index with preset values ​​of different integrity, an objective quantitative evaluation of prefabricated pavement with different structural forms is achieved. The dynamic integrity index is set to standardize the construction and acceptance process of the prefabricated concrete pavement system. The dynamic integrity index is calculated and compared with the operation and maintenance threshold to propose failure criteria, avoiding the risk of blind repair or omission, and reducing the cost during the service life of the pavement.

[0143] The above are merely feasible implementations of step S50 provided in this embodiment. This embodiment does not specifically limit the specific implementation of step S50.

[0144] This embodiment provides a method for assessing the integrity of concrete pavement. By calculating the remaining flexural fatigue life factor, the bidirectional load transfer capacity factor of the assembled surface, and the vertical deformation coordination factor between structural layers, the pavement performance is quantified from three key dimensions: fatigue life, load transfer, and interlayer deformation. This method not only reflects the instantaneous state but also adjusts with changes in load and environment. It enables real-time assessment during construction acceptance and long-term monitoring, improving the timeliness and accuracy of the assessment.

[0145] Based on the first embodiment of this application, in the second embodiment of this application, the content that is the same as or similar to that in Embodiment 1 above can be referred to the above description, and will not be repeated hereafter. Based on this, please refer to... Figure 6 Step S40, the concrete pavement integrity assessment method further includes steps S41~S43:

[0146] Step S41: Obtain the preset unit board weight, preset assembly surface weight, and preset structure weight.

[0147] It should be noted that the preset unit plate weight, preset assembly surface weight, and preset structural weight can be weight values ​​that have been pre-calibrated based on experience or experiments. The weight of each parameter indicates the importance of each parameter to the integrity of the prefabricated concrete pavement. Generally speaking, the greater the weight, the more important it is.

[0148] It should be noted that the preset unit plate weight, preset assembly surface weight, and preset structural weight respectively characterize the remaining bending fatigue life factor of the unit plate. Bidirectional load transfer capacity factor of the assembly surface and interlayer vertical deformation compatibility factor of the structure The weight.

[0149] Specifically, using parameters , , The weighting coefficients for unit panels, assembled surfaces, and structures were determined through sensitivity analysis and experimental data. .

[0150] Step S42: Multiply the bending fatigue remaining life factor and the preset unit plate weight to obtain the unit plate coefficient; multiply the assembly surface bidirectional load transfer capacity factor and the preset assembly surface weight to obtain the assembly surface coefficient; multiply the interlayer vertical deformation coordination factor and the preset structural body weight to obtain the structural system number.

[0151] It should be noted that the unit plate coefficient can also be obtained by using the preset unit plate weight as the life exponent and then using the life exponent of the bending fatigue remaining life factor as the unit plate coefficient.

[0152] Furthermore, the assembly surface coefficient can also be obtained by using the preset assembly surface weight as the assembly surface exponent, and then using the assembly surface exponent of the bidirectional load transfer capacity factor of the assembly surface as the assembly surface coefficient.

[0153] Furthermore, the structural system number can also be obtained by using the preset structural weights as the structural exponent powers, and then using the structural exponent powers of the vertical deformation coordination factors between structural layers as the structural system number.

[0154] Step S43: Add the unit plate coefficient, the assembly surface coefficient, and the structural system number to obtain the dynamic integrity index.

[0155] In practical implementation, the calculation of DII can be referenced using the following formula:

[0156]

[0157] It is worth emphasizing that, since all three factors are values ​​between 0 and 1, the dynamic integrity index (DII) of the pavement structure also falls within the range of 0 to 1. When DII = 1, the prefabricated concrete pavement has an ideal integral structure, comparable to the initial state of cast-in-place concrete pavement. When DII approaches 0, the prefabricated concrete pavement has become approximately a discrete structure, and the pavement structure integrity is lost.

[0158] This embodiment provides a method for evaluating the integrity of concrete pavement. By combining three core evaluation factors—bending fatigue, bidirectional load transfer, and interlayer coordination—with preset weights for unit plates, assembled surfaces, and structural components, a dynamic integrity index is calculated. This solves the problem of inaccurate judgment caused by the failure of traditional evaluation methods to distinguish the primary and secondary contributions of different structural components to the overall performance, resulting in a more accurate dynamic integrity index that can represent prefabricated concrete pavement.

[0159] To better implement the concrete pavement integrity assessment method in this invention embodiment, based on the concrete pavement integrity assessment method, correspondingly, as follows: Figure 7 As shown, this embodiment of the invention also provides a concrete pavement integrity assessment device, the concrete pavement integrity assessment device 700 comprising:

[0160] The integrity factor calculation module 701 is used to obtain the bending fatigue remaining life factor based on the initial stiffness and current stiffness of the concrete pavement. The bending fatigue remaining life factor characterizes the influence of the initial stiffness and the current stiffness on the service life of the concrete pavement.

[0161] The integrity factor calculation module 701 is also used to obtain the bidirectional load transfer capacity factor of the assembled surface based on the longitudinal loading displacement difference, the transverse loading displacement difference, the transverse load transfer coefficient weight and the longitudinal load transfer coefficient weight of the concrete pavement. The bidirectional load transfer capacity factor of the assembled surface characterizes the influence of the longitudinal loading displacement difference, the transverse loading displacement difference, the transverse load transfer coefficient weight and the longitudinal load transfer coefficient weight on the load transfer capacity of the concrete pavement.

[0162] The integrity factor calculation module 701 is also used to obtain the interlayer vertical deformation coordination factor based on the assembly surface displacement, support layer displacement and displacement tolerance value of the concrete pavement. The interlayer vertical deformation coordination factor characterizes the influence of the assembly surface displacement, the support layer displacement and the displacement tolerance value on the vertical deformation of the concrete.

[0163] The integrity factor calculation module 701 is also used to accumulate the dynamic integrity index based on the bending fatigue remaining life factor, the assembly surface bidirectional load transfer capacity factor and the interlayer vertical deformation coordination factor.

[0164] The concrete pavement assessment module 702 is used to assess the integrity of the concrete pavement based on the dynamic integrity index.

[0165] The concrete pavement integrity assessment device 700 provided in the above embodiments can realize the technical solutions described in the above concrete pavement integrity assessment method embodiments. The specific implementation principles of each module or unit can be found in the corresponding content in the above concrete pavement integrity assessment method embodiments, and will not be repeated here.

[0166] like Figure 8 As shown, the present invention also provides an electronic device 800. The electronic device 800 includes a processor 801, a memory 802, and a display 803. Figure 8 Only some components of the electronic device 800 are shown, but it should be understood that it is not required to implement all the components shown, and more or fewer components may be implemented instead.

[0167] In some embodiments, memory 802 may be an internal storage unit of electronic device 800, such as a hard disk or memory of electronic device 800. In other embodiments, memory 802 may also be an external storage device of electronic device 800, such as a plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, etc. equipped on electronic device 800.

[0168] Furthermore, the memory 802 may include both internal storage units of the electronic device 800 and external storage devices. The memory 802 is used to store application software and various types of data installed on the electronic device 800.

[0169] In some embodiments, processor 801 may be a central processing unit (CPU), microprocessor, or other data processing chip, used to run program code stored in memory 802 or process data, such as the concrete pavement integrity assessment method of the present invention.

[0170] In some embodiments, display 803 may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, or an OLED (Organic Light-Emitting Diode) touchscreen. Display 803 is used to display information from electronic device 800 and to display a visual user interface. Components 801-803 of electronic device 800 communicate with each other via a system bus.

[0171] In some embodiments of the present invention, when the processor 801 executes the concrete pavement integrity assessment program in the memory 802, the following steps may be performed:

[0172] The flexural fatigue remaining life factor is obtained based on the initial stiffness and current stiffness of the concrete pavement. The flexural fatigue remaining life factor characterizes the influence of the initial stiffness and the current stiffness on the service life of the concrete pavement.

[0173] The bidirectional load transfer capacity factor of the assembled surface is obtained based on the longitudinal loading displacement difference, the transverse loading displacement difference, the transverse load transfer coefficient weight, and the longitudinal load transfer coefficient weight of the concrete pavement. The bidirectional load transfer capacity factor of the assembled surface characterizes the influence of the longitudinal loading displacement difference, the transverse loading displacement difference, the transverse load transfer coefficient weight, and the longitudinal load transfer coefficient weight on the load transfer capacity of the concrete pavement.

[0174] The vertical deformation coordination factor between structural layers is obtained based on the displacement of the assembled surface of the concrete pavement, the displacement of the supporting layer, and the displacement tolerance value. The vertical deformation coordination factor between structural layers characterizes the influence of the displacement of the assembled surface, the displacement of the supporting layer, and the displacement tolerance value on the vertical deformation of the concrete.

[0175] The dynamic integrity index is obtained by summing the bending fatigue remaining life factor, the bidirectional load transfer capacity factor of the assembly surface, and the vertical deformation coordination factor between structural layers.

[0176] The integrity of the concrete pavement is assessed based on the dynamic integrity index.

[0177] It should be understood that when the processor 801 executes the concrete pavement integrity assessment program in the memory 802, in addition to the functions mentioned above, it can also perform other functions, as detailed in the description of the corresponding method embodiments above.

[0178] Furthermore, the embodiments of the present invention do not specifically limit the type of electronic device 800 mentioned. Electronic device 800 can be a mobile phone, tablet computer, personal digital assistant (PDA), wearable device, laptop computer, or other portable electronic device. Exemplary embodiments of portable electronic devices include, but are not limited to, portable electronic devices running iOS, Android, Microsoft, or other operating systems. The aforementioned portable electronic device can also be other portable electronic devices, such as a laptop computer with a touch-sensitive surface (e.g., a touch panel). It should also be understood that in some other embodiments of the present invention, electronic device 800 may not be a portable electronic device, but rather a desktop computer with a touch-sensitive surface (e.g., a touch panel).

[0179] In another aspect, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to perform the concrete pavement integrity assessment method provided by the methods described above, the method comprising:

[0180] The flexural fatigue remaining life factor is obtained based on the initial stiffness and current stiffness of the concrete pavement. The flexural fatigue remaining life factor characterizes the influence of the initial stiffness and the current stiffness on the service life of the concrete pavement.

[0181] The bidirectional load transfer capacity factor of the assembled surface is obtained based on the longitudinal loading displacement difference, the transverse loading displacement difference, the transverse load transfer coefficient weight, and the longitudinal load transfer coefficient weight of the concrete pavement. The bidirectional load transfer capacity factor of the assembled surface characterizes the influence of the longitudinal loading displacement difference, the transverse loading displacement difference, the transverse load transfer coefficient weight, and the longitudinal load transfer coefficient weight on the load transfer capacity of the concrete pavement.

[0182] The vertical deformation coordination factor between structural layers is obtained based on the displacement of the assembled surface of the concrete pavement, the displacement of the supporting layer, and the displacement tolerance value. The vertical deformation coordination factor between structural layers characterizes the influence of the displacement of the assembled surface, the displacement of the supporting layer, and the displacement tolerance value on the vertical deformation of the concrete.

[0183] The dynamic integrity index is obtained by summing the bending fatigue remaining life factor, the bidirectional load transfer capacity factor of the assembly surface, and the vertical deformation coordination factor between structural layers.

[0184] The integrity of the concrete pavement is assessed based on the dynamic integrity index.

[0185] Those skilled in the art will understand that all or part of the processes of the methods described in the above embodiments can be implemented by a computer program instructing related hardware, and the program can be stored in a computer-readable storage medium. The computer-readable storage medium may be a disk, optical disk, read-only memory, or random access memory, etc.

[0186] The concrete pavement integrity assessment method provided by this invention has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this invention. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this invention. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this invention. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A method of concrete pavement integrity assessment, characterized by, The method comprises the following steps: obtaining a bending fatigue residual life factor according to the initial stiffness and the current stiffness of the concrete pavement, the bending fatigue residual life factor representing the influence of the initial stiffness and the current stiffness on the service life of the concrete pavement; obtaining a two-way load transfer capability factor of the joint surface according to the longitudinal load displacement difference, the transverse load displacement difference, the transverse load transfer coefficient weight and the longitudinal load transfer coefficient weight of the concrete pavement, the two-way load transfer capability factor of the joint surface representing the influence of the longitudinal load displacement difference, the transverse load displacement difference, the transverse load transfer coefficient weight and the longitudinal load transfer coefficient weight on the load transfer capability of the concrete pavement; obtaining a structural interlayer vertical deformation coordination factor according to the joint surface displacement, the support layer displacement and the displacement tolerance value of the concrete pavement, the structural interlayer vertical deformation coordination factor representing the influence of the joint surface displacement, the support layer displacement and the displacement tolerance value on the vertical deformation of the concrete pavement; accumulating the bending fatigue residual life factor, the two-way load transfer capability factor of the joint surface and the structural interlayer vertical deformation coordination factor to obtain a dynamic integrity index; performing integrity evaluation on the concrete pavement according to the dynamic integrity index; the step of obtaining the bending fatigue residual life factor according to the initial stiffness and the current stiffness of the concrete pavement comprises the following steps: obtaining a stiffness ratio according to the initial stiffness and the current stiffness; and obtaining the bending fatigue residual life factor according to the material parameters of the concrete pavement and the stiffness ratio; the step of obtaining the two-way load transfer capability factor of the joint surface according to the longitudinal load displacement difference, the transverse load displacement difference, the transverse load transfer coefficient weight and the longitudinal load transfer coefficient weight of the concrete pavement comprises the following steps: obtaining a longitudinal dynamic load transfer efficiency and a transverse dynamic load transfer efficiency according to the longitudinal load displacement difference and the transverse load displacement difference of the concrete pavement; multiplying the longitudinal dynamic load transfer efficiency and the longitudinal load transfer coefficient weight to obtain a longitudinal factor, and multiplying the transverse dynamic load transfer efficiency and the transverse load transfer coefficient weight to obtain a transverse factor; and adding the longitudinal factor and the transverse factor to obtain the two-way load transfer capability factor of the joint surface; the step of obtaining the structural interlayer vertical deformation coordination factor according to the joint surface displacement, the support layer displacement and the displacement tolerance value of the concrete pavement comprises the following steps: subtracting the support layer displacement from the joint surface displacement to obtain a displacement difference; and obtaining the structural interlayer vertical deformation coordination factor according to the ratio of the displacement difference and the displacement tolerance value minus a preset value.

2. The method for concrete pavement integrity assessment of claim 1, wherein, The step of accumulating the bending fatigue residual life factor, the two-way load transfer capability factor of the joint surface and the structural interlayer vertical deformation coordination factor to obtain a dynamic integrity index comprises the following steps: obtaining a preset unit plate weight, a preset joint surface weight and a preset structure weight; multiplying the bending fatigue residual life factor and the preset unit plate weight to obtain a unit plate coefficient, multiplying the two-way load transfer capability factor of the joint surface and the preset joint surface weight to obtain a joint surface coefficient, and multiplying the structural interlayer vertical deformation coordination factor and the preset structure weight to obtain a structure system coefficient; and Adding the unit plate coefficient, the assembly surface coefficient and the structure system coefficient to obtain a dynamic integrity index.

3. The method for assessing the integrity of concrete pavement as described in claim 1, characterized in that, The integrity evaluation of the concrete pavement according to the dynamic integrity index comprises: Obtaining a dynamic integrity threshold value; Determining the integrity evaluation of the dynamic integrity index according to the dynamic integrity threshold value.

4. The method for assessing the integrity of concrete pavement as described in claim 3, characterized in that, The determining the integrity evaluation of the dynamic integrity index according to the dynamic integrity threshold value comprises: Obtaining a first dynamic integrity threshold value, a second dynamic integrity threshold value, a third dynamic integrity threshold value and a fourth dynamic integrity threshold value arranged from large to small; When the dynamic integrity index is greater than or equal to the first dynamic integrity threshold value, taking structural integrity as the integrity evaluation; When the dynamic integrity index is less than the first dynamic integrity threshold value and greater than or equal to the second dynamic integrity threshold value, taking slight damage as the integrity evaluation; When the dynamic integrity index is less than the second dynamic integrity threshold value and greater than or equal to the third dynamic integrity threshold value, taking functional degradation as the integrity evaluation; When the dynamic integrity index is less than the third dynamic integrity threshold value and greater than or equal to the fourth dynamic integrity threshold value, taking critical failure as the integrity evaluation; When the dynamic integrity index is less than the fourth dynamic integrity threshold value, taking structural failure as the integrity evaluation.

5. A concrete pavement integrity assessment device, characterized by, The concrete pavement integrity evaluation device comprises: An integrity factor calculation module is configured to obtain a bending fatigue residual life factor according to initial stiffness and current stiffness of the concrete pavement, the bending fatigue residual life factor representing an influence of the initial stiffness and the current stiffness on service life of the concrete pavement. The integrity factor calculation module is further configured to obtain a two-way load transmission capability factor of an assembly surface according to a longitudinal loading displacement difference, a transverse loading displacement difference, a transverse load transmission coefficient weight and a longitudinal load transmission coefficient weight of the concrete pavement, the two-way load transmission capability factor representing an influence of the longitudinal loading displacement difference, the transverse loading displacement difference, the transverse load transmission coefficient weight and the longitudinal load transmission coefficient weight on load transmission capability of the concrete pavement. The integrity factor calculation module is further configured to obtain a structural interlayer vertical deformation coordination factor according to an assembly surface displacement, a support layer displacement and a displacement tolerance value of the concrete pavement, the structural interlayer vertical deformation coordination factor representing an influence of the assembly surface displacement, the support layer displacement and the displacement tolerance value on vertical deformation of the concrete pavement. The integrity factor calculation module is further configured to obtain a dynamic integrity index by accumulating the bending fatigue residual life factor, the two-way load transmission capability factor of the assembly surface and the structural interlayer vertical deformation coordination factor. A concrete pavement evaluation module is configured to perform integrity evaluation of the concrete pavement according to the dynamic integrity index. The obtaining of the bending fatigue residual life factor according to the initial stiffness and the current stiffness of the concrete pavement comprises obtaining a stiffness ratio according to the initial stiffness and the current stiffness, and obtaining the bending fatigue residual life factor according to material parameters of the concrete pavement and the stiffness ratio. The two-way load transmission capability factor of the assembled surface is obtained according to the longitudinal load displacement difference, the transverse load displacement difference, the transverse load transmission coefficient weight and the longitudinal load transmission coefficient weight of the concrete pavement, and includes: obtaining the longitudinal dynamic load transmission efficiency and the transverse dynamic load transmission efficiency according to the longitudinal load displacement difference and the transverse load displacement difference of the concrete pavement; multiplying the longitudinal dynamic load transmission efficiency and the longitudinal load transmission coefficient weight to obtain a longitudinal factor, and multiplying the transverse dynamic load transmission efficiency and the transverse load transmission coefficient weight to obtain a transverse factor; and adding the longitudinal factor and the transverse factor to obtain the two-way load transmission capability factor of the assembled surface. The structure interlayer vertical deformation coordination factor is obtained according to the displacement of the concrete pavement, the displacement of the support layer and the displacement tolerance value, and includes: obtaining a displacement difference by subtracting the displacement of the support layer from the displacement of the concrete pavement; and obtaining the structure interlayer vertical deformation coordination factor according to a preset value minus a ratio of the displacement difference and the displacement tolerance value.

6. An electronic device, comprising: The computer program is executed by the processor to implement the steps of the concrete pavement integrity evaluation method according to any one of claims 1 to 4. The computer program is executed by the processor to implement the steps of the concrete pavement integrity evaluation method according to any one of claims 1 to 4. The computer program is executed by the processor to implement the steps of the concrete pavement integrity evaluation method according to any one of claims 1 to 4.

7. A non-transitory computer-readable storage medium having stored thereon a computer program, characterized in that, ​

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