CN115060647A - Accumulated water pavement anti-skid performance evaluation method and system - Google Patents
Accumulated water pavement anti-skid performance evaluation method and system Download PDFInfo
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Abstract
The invention provides a method and a system for evaluating the skid resistance of a ponding road surface, which relate to the technical field of traffic safety and comprise the following steps: based on a pre-established asphalt pavement test model, acquiring the dynamic friction coefficient of a target measuring point on a rut test piece under different accumulated water layer thicknesses and different speeds; and evaluating the skid resistance of the ponding asphalt pavement according to the dynamic friction coefficient. The system performs the method. The invention can avoid the limitation caused by a testing device and a test object, improve the accuracy and the scientificity of the test result, guide and optimize the existing road surface anti-skid tire-road-water model, ensure that the accumulated water road surface anti-skid performance evaluation result is accurate and reliable, and better serve the road surface design and performance evaluation work.
Description
Technical Field
The invention relates to the technical field of traffic safety, in particular to a method and a system for evaluating the anti-skid performance of a water accumulation road surface.
Background
During the running process of the vehicle on a water accumulation road surface, the tire-road contact area is reduced due to the dynamic water pressure, the friction factor between the tire-road contact area and the road contact area is correspondingly weakened, and the road surface skid resistance is temporarily attenuated. Therefore, the change condition of the road surface anti-skid performance in different water accumulation layer thicknesses is fully mastered, the road surface anti-skid performance can be evaluated in rainy weather, and temporary management and control are carried out on traffic, so that the surface function of the road surface is in a safe driving range. The anti-skid property and the attenuation tendency of the pavement can be estimated according to different pavement types, and the method has important research significance for improving the service performance of the pavement under the condition of water accumulation in rainy days.
At present, the research on the anti-skid performance of the water accumulation road surface in rainy days mainly focuses on the finite element simulation direction. The method is characterized in that the tire-road action mechanism and the vehicle hydroplaning characteristic are researched by simulating the vehicle running characteristic and the asphalt pavement anti-hydroplaning performance, a vehicle hydroplaning model is established under the coupling action of the tire-road-water, the water layer thickness, the vehicle running characteristic, the pavement condition and other factors, and then the pavement anti-hydroplaning performance under different water layer thicknesses is evaluated. However, finite element simulation mostly researches objects such as: the water layer thickness, tire characteristics, etc. are ideal, and the tire-road contact generally cannot be made ideal when the vehicle is running on an actual road surface. Therefore, the antiskid performance of the actual ponding road surface cannot be comprehensively and accurately reflected by using the finite element simulation model.
The anti-skid test of the ponding road surface and the establishment of the anti-skid model are necessary scientific research methods, the ponding road surface ponding situation in rainy days is simulated by an indoor means, the anti-skid test and the establishment of the model are carried out on the basis, the anti-skid performance of the ponding road surface can be accurately obtained aiming at different road surface types, 2 variables of the vehicle speed and the thickness of the ponding layer can be well controlled, and the comparative analysis and the modeling are carried out aiming at the influence of the 2 condition factors. Therefore, the accumulated water pavement anti-skid test has important practical and theoretical values for studying the anti-skid performance of the wet pavement. At present, the related indoor test device and theoretical model have many defects for simulating the anti-skid of the ponding road surface. On the one hand, no special indoor simulation ponding road surface anti-skid test exists temporarily, and the traditional anti-skid test contains a test device and a test object and can not meet the requirements of the ponding road surface anti-skid test. The traditional anti-skid test generally adopts a pendulum-type friction meter method and a sand-laying method to carry out indoor anti-skid performance test on a rut test piece, a test speed interval of a system cannot be formed, and for a road surface friction system, the running speed of a vehicle has great influence on the anti-skid performance of tire-road contact, so that the evaluation on the anti-skid performance of the road surface should have a speed interval. In addition, the dynamic friction coefficient tester has higher requirements on the size of a test object, the traditional rut test piece is 30cm multiplied by 30cm, and the dynamic friction coefficient tester cannot be stably arranged on the rut test piece, so that the use of the dynamic friction coefficient tester in an indoor anti-sliding test is limited. On the other hand, the ponding road surface antiskid model is a tire structure or water layer state model mostly, and the road surface antiskid performance is difficult to directly quantify.
Disclosure of Invention
The accumulated water pavement anti-skid performance evaluation method and the accumulated water pavement anti-skid performance evaluation system are used for solving at least one problem in the prior art, can avoid the limitation caused by a testing device and a test object, improve the accuracy and the scientificity of a testing result, guide and optimize the existing pavement anti-skid tire-road-water model, enable the accumulated water pavement anti-skid performance evaluation result to be accurate and reliable, and better serve the pavement design and performance evaluation work.
The invention provides a method for evaluating the skid resistance of a water accumulation pavement, which comprises the following steps:
the method comprises the steps that based on a pre-established asphalt pavement test model, the dynamic friction coefficient of a target measuring point on a rut test piece is obtained under different water accumulation layer thicknesses and different speeds, the asphalt pavement test model comprises a test die, a thin base plate is arranged in the test die, the rut test piece with the same height is arranged on the thin base plate, a dynamic friction coefficient tester is arranged on the rut test piece, the rut test piece is composed of a rut plate formed by asphalt mixture, the rut test piece is used for simulating an asphalt pavement, the water accumulation layer thickness is determined according to the distance from a horizontal plane in the test die to the top end of the rut test piece, the speed is determined according to the rotating speed of the dynamic friction coefficient tester and the radius of a slide block of the dynamic friction coefficient tester, and the slide block is in contact with the rut test piece;
and evaluating the skid resistance of the ponding asphalt pavement according to the dynamic friction coefficient.
According to the method for evaluating the anti-skid performance of the ponding pavement, provided by the invention, the target measuring point is determined in the following way:
randomly selecting a plurality of candidate measuring points on the rut test piece;
acquiring an output curve of the dynamic friction coefficient measured value of each candidate measuring point in a waterless state and at different speeds;
and determining the target measuring point from each candidate measuring point according to the output curve.
According to the accumulated water pavement anti-skid performance evaluation method provided by the invention, the dynamic friction coefficient of the target measuring point on the rut test piece under different accumulated water layer thicknesses and different speeds is obtained based on the pre-established asphalt pavement test model, and the method comprises the following steps:
based on the bituminous pavement test model, acquiring dynamic friction coefficient measured values of target measuring points, water flow resistance borne by the sliding block and pressure borne by the sliding block, which are measured by the dynamic friction coefficient tester under different water accumulation layer thicknesses and different speeds;
and obtaining the dynamic friction coefficient according to the dynamic friction coefficient measured value of the target measuring point, the water flow resistance and the pressure.
According to the method for evaluating the anti-skid performance of the water accumulation asphalt pavement, provided by the invention, the evaluation of the anti-skid performance of the water accumulation asphalt pavement according to the dynamic friction coefficient comprises the following steps:
establishing accumulated water asphalt pavement anti-skid performance evaluation models with different accumulated water layer thicknesses and dynamic friction coefficients at different speeds;
and evaluating the anti-skid performance of the accumulated water asphalt pavement according to the accumulated water asphalt pavement anti-skid performance evaluation model.
According to the method for evaluating the anti-skid performance of the water accumulation asphalt pavement, provided by the invention, the model for evaluating the anti-skid performance of the water accumulation asphalt pavement with different water accumulation layer thicknesses and dynamic friction coefficients at different speeds is established, and comprises the following steps:
when the speed is in a first speed interval, establishing a ponding asphalt pavement anti-skid performance evaluation model with different ponding layer thicknesses and dynamic friction coefficients at each first speed in the first speed interval based on a Boltzmann curve equation;
when the speed is in a second speed interval, establishing a ponding asphalt pavement anti-skid performance evaluation model with different ponding layer thicknesses and dynamic friction coefficients at each second speed in the second speed interval based on a unitary linear equation;
wherein the first speed interval is 10km/h to 30 km/h;
the second speed interval is 40km/h to 60 km/h.
According to the accumulated water asphalt pavement anti-skid performance evaluation method provided by the invention, the accumulated water asphalt pavement anti-skid performance evaluation is carried out according to the accumulated water asphalt pavement anti-skid performance evaluation model, and the accumulated water asphalt pavement anti-skid performance evaluation method comprises the following steps:
acquiring first dynamic friction coefficients corresponding to different thicknesses of the ponding layers at the same speed according to the ponding asphalt pavement anti-skid performance evaluation model;
according to the first dynamic friction coefficient, evaluating the anti-skid performance of the accumulated water asphalt pavement with different accumulated water layer thicknesses at the same speed;
according to the accumulated water asphalt pavement anti-skid performance evaluation model, second dynamic friction coefficients corresponding to different speeds under the same accumulated water layer thickness are obtained;
and evaluating the anti-skid performance of the accumulated water asphalt pavement at different speeds under the same thickness of the accumulated water layer according to the second dynamic friction coefficient.
According to the method for evaluating the anti-skid performance of the water accumulation asphalt pavement, provided by the invention, before evaluating the anti-skid performance of the water accumulation asphalt pavement according to the dynamic friction coefficient, the method further comprises the following steps:
and preprocessing the dynamic friction coefficient, and rejecting the dynamic friction coefficient with a discrete value larger than a preset threshold value.
The invention also provides a system for evaluating the anti-skid performance of the ponding pavement, which comprises: the device comprises a data acquisition module and a performance evaluation module;
the data acquisition module is used for acquiring the dynamic friction coefficient of a target measuring point on the rut test piece under different water accumulation layer thicknesses and different speeds based on a pre-established asphalt pavement test model, the asphalt pavement test model comprises a test mould, a thin base plate is arranged in the test mould, the track test pieces with the same elevation are arranged on the thin base plate, a dynamic friction coefficient tester is arranged on the rutting test piece, the rutting test piece is composed of a rutting plate made of asphalt mixture, the rut test piece is used for simulating an asphalt pavement, the thickness of the accumulated water layer is determined according to the distance from the horizontal plane in the test mould to the top end of the rut test piece, the speed is determined according to the rotating speed of the dynamic friction coefficient tester and the radius of a sliding block of the dynamic friction coefficient tester, and the sliding block is in contact with the rut test piece;
and the performance evaluation module is used for evaluating the anti-skid performance of the accumulated water asphalt pavement according to the dynamic friction coefficient.
The invention also provides electronic equipment which comprises a processor and a memory stored with a computer program, wherein the processor executes the program to realize any one of the above methods for evaluating the anti-skid performance of the water surface.
The present invention also provides a non-transitory computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements any one of the above-described methods for evaluating hydrops road surface anti-skid performance.
The invention also provides a computer program product comprising a computer program, wherein the computer program is executed by a processor to realize the method for evaluating the anti-skid performance of the water logging road surface.
The accumulated water road surface anti-skid performance evaluation method and the accumulated water road surface anti-skid performance evaluation system can avoid the limitation caused by a test device and a test object, improve the accuracy and the scientificity of a test result, guide and optimize the existing road surface anti-skid tire-road-water model, enable the accumulated water road surface anti-skid performance evaluation result to be accurate and reliable, and better serve the road surface design and performance evaluation work.
Drawings
In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic flow chart of a method for evaluating the skid resistance of a water accumulation road surface provided by the invention;
FIG. 2 is a second schematic flow chart of the method for evaluating the anti-skid performance of a water-logging road surface provided by the present invention;
FIG. 3 is a schematic diagram showing the relationship between the thickness of the water accumulation layer and the maximum rotation speed of the DFT;
FIG. 4 is a schematic diagram showing the relationship between the thickness of the water accumulation layer at different speeds and the measured value of the dynamic friction coefficient tester according to the present invention;
FIG. 5 is a second schematic diagram showing the relationship between the thickness of the water accumulation layer and the measured value of the dynamic friction coefficient tester at different speeds according to the present invention;
FIG. 6 is a third schematic diagram showing the relationship between the thickness of the water accumulation layer at different speeds and the measured dynamic friction coefficient of the dynamic friction coefficient tester;
FIG. 7 is a fourth schematic view showing the relationship between the thickness of the water accumulation layer at different speeds and the measured value of the dynamic friction coefficient tester according to the present invention;
FIG. 8 is a fifth schematic view showing the relationship between the thickness of the water accumulation layer at different speeds and the measured value of the dynamic friction coefficient tester according to the present invention;
FIG. 9 is a sixth schematic view showing the relationship between the thickness of the water accumulation layer at different speeds and the measured value of the dynamic friction coefficient tester according to the present invention;
FIG. 10 is a seventh schematic view of the relationship between the thickness of the water accumulation layer and the measured value of the dynamic friction coefficient tester at different speeds according to the present invention;
FIG. 11 is an eighth schematic view of the relationship between the thickness of the water accumulation layer at different speeds and the measured value of the dynamic friction coefficient tester according to the present invention;
FIG. 12 is a ninth illustration showing the relationship between the thickness of the water accumulation layer at different speeds and the measured value of the dynamic friction coefficient tester according to the present invention;
FIG. 13 is a tenth schematic view of the relationship between the thickness of the water accumulation layer at different speeds and the measured value of the dynamic friction coefficient tester provided by the present invention;
FIG. 14 is an eleventh illustration of the relationship between the thickness of the water accumulation layer and the measured dynamic friction coefficient of the dynamic friction coefficient tester at different speeds according to the present invention;
FIG. 15 is a twelfth illustrative view showing the relationship between the thickness of the water accumulation layer and the measured value of the dynamic friction coefficient measuring instrument at different speeds, according to the present invention;
FIG. 16 is a schematic structural diagram of a hydrops surface anti-skid performance evaluation system provided by the invention;
fig. 17 is a schematic physical structure diagram of an electronic device provided in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The anti-sliding test of the ponding layer can not be carried out by utilizing the traditional indoor anti-sliding test and the theoretical model, and the novel indoor simulation test device for the anti-sliding performance of the ponding pavement needs to be designed and developed by combining with actual requirements and the matched theoretical model is established according to the test result. The speed is reduced due to the action of friction force generated after a sliding block of the dynamic friction coefficient tester is contacted with the ground, so that the influence of the speed on the anti-sliding performance of the road surface can be clearly characterized; the thickness of the water accumulation layer can be adjusted on the basis of solving the problem that a test object of the dynamic friction coefficient tester cannot be adapted by manufacturing a novel indoor anti-skid test die, and the influence of the water accumulation layer on the anti-skid property of the pavement can be obtained. Therefore, on the basis, a road surface anti-skid performance evaluation model under the coupling action of two factors of vehicle speed and accumulated water can be established by using a dynamic friction coefficient tester, and the concrete implementation is as follows:
fig. 1 is one of the flow diagrams of the method for evaluating the skid resistance of a water surface provided by the present invention, and as shown in fig. 1, the method includes:
and 200, evaluating the skid resistance of the ponding asphalt pavement according to the dynamic friction coefficient.
The test model of the asphalt pavement comprises a test mould, a thin base plate is arranged in the test mould, a rut test piece with the same elevation is arranged on the thin base plate, a dynamic friction coefficient tester is arranged on the rut test piece, the rut test piece is composed of a rut plate made of asphalt mixture, and the rut test piece is used for simulating the asphalt pavement;
the thickness of the accumulated water layer is determined according to the distance from the horizontal plane in the testing mold to the top end of the rut test piece, the speed is determined according to the rotating speed of the dynamic friction coefficient tester and the radius of a sliding block of the dynamic friction coefficient tester, and the sliding block is in contact with the rut test piece.
It should be noted that the execution subject of the method may be a computer device.
Optionally, in step 100, the asphalt pavement test model is pre-established, and the asphalt pavement test model includes a test mold, a millimeter scale is arranged on the surface of the test mold, a thin backing plate is arranged in the mold, the thickness of the water accumulation layer is adjusted by the thin backing plate and the thin backing plate, a rut test piece with the same height is arranged on the thin backing plate, a dynamic friction coefficient tester for performing an anti-sliding test on the rut test piece is placed on the rut test piece, the thickness of the water accumulation layer is observed from a horizontal plane in the test mold to the top end of the rut test piece, and the thickness of the water accumulation layer can be changed by the thin backing plate according to the distance.
In one embodiment, the test mold is provided with the detachable bolts, and the size of the thin cushion plate is slightly smaller than the inner diameter size of the test mold, so that the detachable bolts can be placed after being installed.
In one embodiment, the custom test mold has an outside diameter of 58cm x 9cm and an inside diameter of 55cm x 9cm, with 2 bolts each for removal on 4 sides.
Optionally, the customized test mold inner wall is bathymetric using a waterproof scale or steel rule.
In one embodiment, the thin shim plate comprises 2 gauges of 54cm x 0.5cm, 54cm x 1cm, each 5 slices, with the thickness of the water accumulation layer roughly adjusted by the combination of thicknesses.
In one embodiment, the test mold is filled with water to the desired depth of the water accumulation layer, and fine adjustment of the thickness of the water accumulation layer is performed using a millimeter scale.
In one embodiment, each set of rut test pieces comprises 4 conventional rut plates, and the rut test pieces are assembled into a shape like a Chinese character 'tian' after being trimmed by a cutting machine, and the rut test pieces are placed into a test mold, wherein the rut test pieces are 57cm × 57 cm.
In one embodiment, a rutting test piece is formed, 4 rutting plate samples are prepared indoors, the elevation is kept consistent, 2 edges of each rutting plate are cut according to the designed size, the joint is assembled after cutting and smoothing treatment is carried out on the joint, and the surface of the test piece is smooth and free of physical and chemical pollution. And (3) mounting the thin cushion plate, selecting the appropriate thickness of the thin cushion plate according to the thickness of the required accumulated water layer, wherein the height from the cushion to the top end of the rut test piece to the top end of the test die is the upper limit value of the thickness interval of the required accumulated water layer.
And (3) installing the rut test piece, placing the rut test piece on the thin base plate to ensure that the rut test piece is stable and does not shake, placing the dynamic friction coefficient tester on the rut test piece, and framing a test boundary.
In step 100, selecting a measuring point, testing the selected measuring point in a waterless state, and observing a dynamic friction coefficient measured value of the dynamic friction coefficient tester
The measuring point corresponding to the stable output curve without large fluctuation can be selected as the final target measuring point.
Injecting water into the test mould to the required thickness, finely adjusting the thickness of the water accumulation layer by using a millimeter scale, setting a certain speed as the highest rotating speed, continuously debugging to obtain the highest rotating speed which can be reached by the dynamic friction coefficient tester under the thickness of the water accumulation layer, and recording the highest rotating speed which can be reached by the dynamic friction coefficient tester under the thickness of the water accumulation layer and the rotating speed which is lower than the highest rotating speed and the rotating speed which can be reached by the dynamic friction coefficient tester under the thickness of the water accumulation layer and the measured value of the dynamic friction coefficient by the dynamic friction coefficient tester under the thickness of the water accumulation layer by the dynamic friction coefficient tester
The collected data are collected and averaged to obtain the dynamic friction coefficient of the target measuring point on the rut test piece
。
In step 200, according to the obtained dynamic friction coefficient
To rutAnd evaluating the anti-skid performance of the ponding asphalt pavement simulated by the test piece.
The accumulated water pavement anti-skid performance evaluation method provided by the invention can avoid the limitation caused by a test device and a test object, improve the accuracy and the scientificity of a test result, guide and optimize the existing pavement anti-skid tire-road-water model, ensure that the accumulated water pavement anti-skid performance evaluation result is accurate and reliable, and better serve the pavement design and performance evaluation work.
Further, in one embodiment, the target measurement point is determined by:
randomly selecting a plurality of candidate measuring points on the rut test piece;
acquiring an output curve of the dynamic friction coefficient measured value of each candidate measuring point in a waterless state and at different speeds;
and determining target measuring points from the candidate measuring points according to the output curve.
Optionally, referring to fig. 2, after the preparation of the asphalt mixture rut test piece is completed based on the method, the type of the road surface and the type of the working condition are selected to perform a pre-test of the thickness of the waterless layer, c) a measuring point is selected based on the pre-test result, d) anti-skid data (coefficient of dynamic friction) of the asphalt road surface at different speeds and different waterless layer thicknesses are obtained
) The method comprises the following steps of e) carrying out screening and processing on anti-skid data under different water layer thicknesses, carrying out data rejection with large water flow resistance calculation and discrete deviation, and f) carrying out modeling on the anti-skid data. The method comprises the steps of obtaining the anti-skid performance of the ponding asphalt pavement and establishing an evaluation model of the anti-skid performance of the ponding asphalt pavement through an indoor test, and evaluating and predicting the anti-skid performance of the pavement under different pavement types, different speeds and different ponding layer thicknesses.
Selecting a plurality of measuring points (as the rutting test piece is spliced by 5 test pieces, at most 5 measuring points are selected) on the rutting test piece, respectively carrying out pretesting, determining a target measuring point according to the pretesting result, and measuring the distance from the target measuring point to the millimeter scale, specifically: in the state of no water accumulationTesting the selected testing point in the state, and observing the dynamic friction coefficient measured value on the data output screen of the dynamic friction coefficient tester
And selecting the measuring points corresponding to the stable curve without large fluctuation as target measuring points.
It should be noted that the highest rotation speed of the dynamic friction coefficient tester is directly related to the highest stable rotation speed of the slider under a certain water accumulation layer thickness, and the dynamic friction coefficient measurement value is displayed on the data output screen of the dynamic friction coefficient tester
The speed after the output curve is stabilized is the speed corresponding to the highest rotating speed under the thickness of the water accumulation layer.
The method for evaluating the anti-skid performance of the seeper pavement can avoid the limitation caused by a testing device and a test object, and can calculate the dynamic friction coefficient by selecting the target measuring point with stable dynamic friction coefficient measured value by the dynamic friction coefficient tester, thereby further improving the accuracy of the test result.
Further, in an embodiment, step 100 may specifically include:
1001, acquiring dynamic friction coefficient measured values of target measuring points, water flow resistance borne by a sliding block and pressure borne by the sliding block, which are measured by a dynamic friction coefficient tester under different thicknesses of accumulated water layers and different speeds based on an asphalt pavement test model;
step 1002, obtaining a dynamic friction coefficient according to the dynamic friction coefficient measured value of the target measuring point, water flow resistance and pressure.
Further, in an embodiment, before step 200, the method may further include:
and preprocessing the dynamic friction coefficient, and rejecting the dynamic friction coefficient of which the discrete value is greater than a preset threshold value.
Alternatively, with continued reference to FIG. 2, the flow resistance at different speeds and different water layer thicknesses is calculated and converted to the DF value (i.e., the DF value)Dimensionless index
) The original DF value (i.e., the value
) By subtracting the DF value
The dynamic friction coefficient can be obtained
Specifically:
water flow resistance of slider of single dynamic friction coefficient tester
Calculated by 3 times, as shown in formula (1):
wherein the content of the first and second substances,
which is representative of the coefficient of fluid resistance,
which is representative of the density of the water stream,
the area of the slide block facing the water is represented,
representing the speed.
in one embodiment, it is desirable to match the calculated coefficient of dynamic friction
And (3) preprocessing (such as screening) is carried out, the dynamic friction coefficient of which the discrete value is larger than a preset threshold value is eliminated, and the dynamic friction coefficient with larger deviation from the discrete value can be eliminated through preprocessing.
In one embodiment, points that deviate significantly from the fitted curve should be rejected when fitting the coefficient of dynamic friction. Comparing the original data corresponding to the same abscissa with the theoretical value of the fitted curve, wherein the difference is not more than 5%.
The dynamic friction coefficient is consistent under the same water accumulation layer thickness and speed, and the error is not more than 5%. Such as: the dynamic friction coefficients measured at a water accumulation layer thickness of 1mm and a speed of 60km/h are shown in Table 1:
TABLE 1
At the same water accumulation layer thickness and speed, the dynamic friction coefficient comprises 10 parallel data in table 1, 7 data of the 10 data are 0.37, 2 data are 0.36, and according to the occurrence frequency, the dynamic friction coefficient at the water accumulation layer thickness of 1mm and the speed of 60km/h is considered to be 0.37. If the data exceeds 5% of 0.37, such as 0.48, the data is rejected by taking 0.37 as a standard.
The method for evaluating the anti-skid performance of the water accumulation asphalt pavement, provided by the invention, has the advantages of simple test, scientificity, reasonability and easiness in realization, can be used for producing a mold in a standardized manner, and has extremely important practical engineering significance for promoting the establishment and prediction research of the anti-skid model of the water accumulation asphalt pavement in rainy days.
Further, in an embodiment, step 200 may specifically include:
2001, establishing accumulated water asphalt pavement anti-skid performance evaluation models with different accumulated water layer thicknesses and dynamic friction coefficients at different speeds;
and step 2002, evaluating the anti-skid performance of the ponding asphalt pavement according to the ponding asphalt pavement anti-skid performance evaluation model.
Further, in one embodiment, step 2001 may specifically include:
step 20011, when the speed is in a first speed interval, based on a Boltzmann curve equation, establishing a ponding asphalt pavement anti-skid performance evaluation model with different ponding layer thicknesses and dynamic friction coefficients at each first speed in the first speed interval;
step 20012, when the speed is in a second speed interval, establishing a ponding asphalt pavement anti-skid performance evaluation model with different ponding layer thicknesses and dynamic friction coefficients at each second speed in the second speed interval based on a unitary linear equation;
wherein, the first speed interval is 10km/h to 30 km/h;
the second speed interval is 40km/h to 60 km/h.
Optionally, in step 2001, establishing the accumulated water asphalt pavement anti-skid performance evaluation model with different accumulated water layer thicknesses and dynamic friction coefficients at different speeds may specifically include the following two cases:
(1) when the rotating speed of the dynamic friction coefficient tester is at a medium-low speed (at the moment, the speed of the sliding block is in a first speed interval of 10-30 km/h), the dynamic friction coefficient
The value changes along with the thickness of the water accumulation layer to satisfy the trend of sigmoid curve and the coefficient of dynamic friction
The rate of change of the value increases and then decreases;
(2) when the rotating speed of the dynamic friction coefficient tester is medium-high speed (at the moment, the speed of the sliding block is in a second speed interval such as 40-60 km/h), the dynamic friction coefficient tester conducts dynamic frictionCoefficient of performance
The value satisfies the linear variation trend along with the variation of the thickness of the water accumulation layer, and the dynamic friction coefficient
The rate of change of the value remains stable.
For the first case, the correlation coefficient between the thickness of the water accumulation layer and the dynamic friction coefficient is obtained by calculation at each first speed (e.g. 10km/h, 20km/h, 30 km/h) in the first speed interval
And based on the correlation coefficient
Whether or not the different types of sigmoid curves are significantly correlated.
Thickness of water accumulation layer at a certain speed on sigmoid curve and
correlation coefficient of values
Is selected according to the correlation coefficient
Under the condition of convergence, selecting a proper sigmoid curve equation, and in order to ensure that the accuracy of the built accumulated water asphalt pavement anti-skid performance evaluation model is higher, the correlation coefficient
And selecting a Boltzmann equation of a Boltzmann curve based on the Boltzmann equation above 0.95, and establishing a ponding asphalt pavement anti-skid performance evaluation model with different ponding layer thicknesses and dynamic friction coefficients at each first speed in a first speed interval.
Analytic formula of Boltzmann equation asThe sigmoid curve corresponding to Boltzmann equation is shown in formula (3)
Best fit of values, correlation coefficient
In the range of 0.95 to 0.99:
in the formula (I), the compound is shown in the specification,
representing no water accumulation
The value of the one or more of the one,
representing the maximum water accumulation layer thickness selected during the test
The value of the one or more of the one,
representing the thickness of the water accumulation layer
，
Represents
Thickness of water accumulation layer corresponding to fastest rate of value decrease
，
Representing the dynamic friction coefficients corresponding to different water accumulation layer thicknesses.
Of bituminous pavements in the absence of water
The upper limit value of the boltzmann curve equation is used as an asymptotic value to test the reasonability of the anti-skid data;
maximum value of thickness of water accumulation layer selected
As a lower limit value of the boltzmann curve equation;
find out
The thickness of the water accumulation layer with the maximum value descending speed is established, and the thickness and the dynamic friction coefficient of different water accumulation layers are established in a first speed interval
The accumulated water asphalt pavement anti-skid performance evaluation model.
For the second case mentioned above, due to the coefficient of dynamic friction
The variation rate of the value is kept stable, so that a unitary linear equation can be adopted to establish the thickness and the dynamic friction coefficient of different water accumulation layers at different second speeds (for example, 40km/h, 50km/h and 60 km/h) in the second speed interval
The accumulated water asphalt pavement anti-skid performance evaluation model.
The accumulated water pavement anti-skid performance evaluation method provided by the invention can realize the simulation of the real environmental condition of accumulated water on the asphalt pavement in rainy days, ensure the scientific and reasonable anti-skid test result, and simultaneously establish accumulated water asphalt pavement anti-skid performance evaluation models in different speed intervals to realize the evaluation or prediction of the accumulated water pavement anti-skid performance.
Further, in an embodiment, step 2002 may specifically include:
20021, obtaining first dynamic friction coefficients corresponding to different thicknesses of water accumulation layers at the same speed according to the accumulated water asphalt pavement anti-skid performance evaluation model;
20022, evaluating the anti-skid performance of the accumulated water asphalt pavements with different accumulated water layer thicknesses at the same speed according to the first dynamic friction coefficient;
20023, obtaining second dynamic friction coefficients corresponding to different speeds under the same thickness of the ponding layer according to the ponding asphalt pavement anti-skid performance evaluation model;
20024, evaluating the anti-skid performance of the accumulated water asphalt pavement with different speeds under the same thickness of the accumulated water layer according to the second dynamic friction coefficient.
In one embodiment, the asphalt pavement test model is pre-established: firstly, forming a rutting test piece, and preparing 8 rutting test piece samples indoors, wherein 4 of the rutting test piece samples are asphalt mixture AC-13, and 4 of the rutting test piece samples are asphalt mixture OGFC-13. Keeping the elevation of each group of 4 rut test piece samples consistent, cutting 2 sides of each rut test piece by 3cm according to the design size, and then splicing to ensure that the rut test piece surface is smooth and free of physical and chemical pollution;
secondly, mounting the thin cushion plates, selecting water accumulation layers with the thickness of 6mm or less, wherein the step length of the thickness of the water accumulation layers is 1mm, selecting 54cm multiplied by 0.5cm multiplied by 3 thin cushion plates and 54cm multiplied by 1cm multiplied by 5 thin cushion plates, and setting the height from the cushion to the top end of the rut test piece to the top end of the test mould to be 1mm, namely 10 mm;
thirdly, mounting a test piece, placing the AC-13 test piece on a thin base plate to ensure that the test piece is stable and does not shake, placing a dynamic friction coefficient tester on the thin base plate, and framing a test boundary;
fourthly, selecting the measuring points, testing the selected measuring points in a waterless state, and observing
Selecting a stable measuring point without large fluctuation curve as a target measuring point;
fifthly, reading the thickness of the water accumulation layer, injecting water into the test mould to the required thickness, performing an anti-sliding test from the thickness of 1mm of the water accumulation layer to the thickness of 6mm of the water accumulation layer, and finely adjusting the thickness of the water accumulation layer by using a millimeter graduated scale;
and sixthly, performing anti-slip test, continuously debugging to obtain the highest rotating speed which can be reached by the dynamic friction coefficient tester under the thickness of the water accumulation layer of 1-6mm, and selecting 60km/h as the highest speed of the thickness of each water accumulation layer as shown in figure 3 because the highest speed needs to be limited to compare the relation between the dynamic friction coefficient and the thickness of the water accumulation layer under different speeds.
Measured at a thickness of the water accumulation layer of 1mm to 6mm
As shown in table 2:
TABLE 2
Seventhly, treating the water flow resistance, namely adopting a water flow resistance formula to treat the water flow resistance of the thickness of the water accumulation layer of 1-6mm
Calculations were performed and the results are shown in table 3:
TABLE 3
Eighthly, converting the water flow resistance of 1-6mm into
The results are shown in table 4:
TABLE 4
Will be provided with
Minus
The results are shown in table 5:
TABLE 5
And ninthly, establishing a model, namely selecting a Boltzmann curve equation and a unitary linear equation to establish a ponding asphalt pavement anti-skid performance evaluation model according to the result, predicting the asphalt pavement anti-skid performance in a ponding-free state, and evaluating the pavement anti-skid performance under the thickness of a non-tested ponding layer.
Finally, combining curve correlation analysis and evaluation conditions of the accumulated water pavement anti-skid performance, selecting a Boltzmann curve equation at 10km/h-30km/h to model an accumulated water asphalt pavement anti-skid performance evaluation model, specifically as shown in figures 4-6, selecting a unitary linear equation at 40km/h-60km/h to model the accumulated water asphalt pavement anti-skid performance evaluation model, specifically as shown in figures 7-9.
The analytical equation is shown in table 6:
TABLE 6
Repeating the first to ninth steps to obtain the product with OGFC-13
The values are shown in Table 7:
TABLE 7
Combining curve correlation analysis and evaluation conditions of the water accumulation asphalt pavement skid resistance, selecting a boltzmann curve in a sigmoid curve from 10km/h to 30km/h, specifically as shown in figures 10-12, and selecting a unitary linear equation from 40km/h to 60km/h for trend analysis, specifically as shown in figures 13-15.
The analytical equation is shown in table 8:
TABLE 8
Comparing the AC-13 asphalt mixture with the OGFC-13 asphalt mixture, the fact that the skid resistance of the OGFC-13 is larger than that of the AC-13 asphalt mixture on the whole under the conditions of different water accumulation layer thicknesses and speeds can be found, and the skid resistance of two asphalt pavements under the water accumulation condition can be represented by a Boltzmann curve equation and a unary linear equation. Under the same speed, the anti-skid performance evaluation models of different ponding asphalt pavements are the same and are easy to compare.
In an embodiment, for the AC-13 asphalt mixture, the dynamic friction coefficients (i.e., the first dynamic friction coefficients) corresponding to different thicknesses of the water accumulation layers at the same speed can be obtained according to the accumulated water asphalt pavement anti-slip performance evaluation model (i.e., the analysis equation) established in table 6, and the accumulated water asphalt pavement anti-slip performance evaluation at different thicknesses of the water accumulation layers at the same speed is realized according to the magnitude relationship among the first dynamic friction coefficients, for example, at 10km/h, the accumulated water asphalt pavement anti-slip performance becomes worse along with the increase of the thickness of the water accumulation layers.
By fixing the thickness of the water accumulation layer in each analysis equation in the table 6, the dynamic friction coefficients (namely, second dynamic friction coefficients) corresponding to different speeds under the same thickness of the water accumulation layer can be obtained, and the anti-skid performance of the water accumulation asphalt pavement at different speeds under the same thickness of the water accumulation layer is evaluated according to each second dynamic friction coefficient. Like under the same water accumulation layer thickness, the water accumulation asphalt pavement has poor skid resistance along with the increase of the speed.
In an embodiment, for the OGFC-13 asphalt mixture, the dynamic friction coefficients (i.e., the second dynamic friction coefficients) corresponding to different thicknesses of the water accumulation layers at the same speed can be obtained according to the accumulated water asphalt pavement anti-slip performance evaluation model (i.e., the analysis equation) established in table 8, and the accumulated water asphalt pavement anti-slip performance evaluation of different thicknesses of the water accumulation layers at the same speed is realized according to the magnitude relationship among the second dynamic friction coefficients, for example, the accumulated water asphalt pavement anti-slip performance is deteriorated along with the increase of the thickness of the water accumulation layers at 10 km/h.
By fixing the thickness of the water accumulation layer in each analysis equation in the table 8, the dynamic friction coefficients (i.e., second dynamic friction coefficients) corresponding to different speeds under the same thickness of the water accumulation layer can be obtained, and the anti-skid performance of the water accumulation asphalt pavement at different speeds under the same thickness of the water accumulation layer can be evaluated according to each second dynamic friction coefficient. Like under the same water accumulation layer thickness, the water accumulation asphalt pavement has poor skid resistance along with the increase of the speed.
It should be noted that the applicable range of boltzmann's curve equation takes speed as a measure.
The method for evaluating the anti-skid performance of the ponding road surface comprises test testing and theoretical model building, improves the accuracy of building and predicting the anti-skid model of the ponding road surface, is scientific, reasonable and easy to realize, increases the ponding anti-skid test on the basis of traditional model analysis, and has extremely important engineering significance for researching the change rule of the anti-skid performance of the ponding road surface by popularization and application.
The accumulated water pavement anti-skid performance evaluation system provided by the invention is described below, and the accumulated water pavement anti-skid performance evaluation system described below and the accumulated water pavement anti-skid performance evaluation method described above can be referred to correspondingly.
Fig. 16 is a schematic structural diagram of a hydrops road surface anti-skid performance evaluation system provided by the present invention, as shown in fig. 16, including:
a data acquisition module 1610 and a performance evaluation module 1620;
the data acquisition module 1610 is configured to acquire dynamic friction coefficients of target measurement points on a rut test piece at different thicknesses of water accumulation layers and at different speeds based on a pre-established asphalt pavement test model, the asphalt pavement test model comprises a test mould, a thin base plate is arranged in the test mould, the track test pieces with the same elevation are arranged on the thin base plate, a dynamic friction coefficient tester is arranged on the rutting test piece, the rutting test piece is composed of a rutting plate made of asphalt mixture, the rut test piece is used for simulating an asphalt pavement, the thickness of the accumulated water layer is determined according to the distance from the horizontal plane in the test mould to the top end of the rut test piece, the speed is determined according to the rotating speed of the dynamic friction coefficient tester and the radius of a sliding block of the dynamic friction coefficient tester, and the sliding block is in contact with the rut test piece;
and the performance evaluation module 1620 is used for evaluating the anti-skid performance of the ponding asphalt pavement according to the dynamic friction coefficient.
The accumulated water pavement anti-skid performance evaluation system provided by the invention can avoid the limitation caused by a test device and a test object, improve the accuracy and the scientificity of a test result, guide and optimize the existing pavement anti-skid tire-road-water model, ensure that the accumulated water pavement anti-skid performance evaluation result is accurate and reliable, and better serve the pavement design and performance evaluation work.
Fig. 17 is a schematic physical structure diagram of an electronic device provided in the present invention, and as shown in fig. 17, the electronic device may include: a processor (processor) 1710, a communication interface (communication interface) 1711, a memory (memory) 1712 and a bus (bus) 1713, wherein the processor 1710, the communication interface 1711 and the memory 1712 complete communication with each other through the bus 1713. The processor 1710 may call logic instructions in the memory 1712 to perform the following method:
the method comprises the steps that based on a pre-established asphalt pavement test model, the dynamic friction coefficient of a target measuring point on a rut test piece is obtained under different water accumulation layer thicknesses and different speeds, the asphalt pavement test model comprises a test die, a thin base plate is arranged in the test die, rut test pieces with the same height are arranged on the thin base plate, a dynamic friction coefficient tester is placed on the rut test pieces, the rut test pieces are composed of rut plates formed by asphalt mixtures, the rut test pieces are used for simulating an asphalt pavement, the water accumulation layer thicknesses are determined according to the distance from a horizontal plane in the test die to the top ends of the rut test pieces, the speeds are determined according to the rotating speed of the dynamic friction coefficient tester and the radius of sliding blocks of the dynamic friction coefficient tester, and the sliding blocks are in contact with the rut test pieces;
and evaluating the skid resistance of the ponding asphalt pavement according to the dynamic friction coefficient.
In addition, the logic instructions in the memory may be implemented in the form of software functional units and may be stored in a computer readable storage medium when sold or used as a stand-alone product. Based on such understanding, the technical solution of the present invention or a part thereof which substantially contributes to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer power screen (which may be a personal computer, a server, or a network power screen) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and various media capable of storing program codes.
Further, the present invention discloses a computer program product comprising a computer program stored on a non-transitory computer-readable storage medium, the computer program comprising program instructions, which when executed by a computer, the computer is capable of executing the method for evaluating hydrops skid resistance provided by the above-mentioned method embodiments, for example, the method comprises:
the method comprises the steps that based on a pre-established asphalt pavement test model, the dynamic friction coefficient of a target measuring point on a rut test piece is obtained under different water accumulation layer thicknesses and different speeds, the asphalt pavement test model comprises a test die, a thin base plate is arranged in the test die, rut test pieces with the same height are arranged on the thin base plate, a dynamic friction coefficient tester is placed on the rut test pieces, the rut test pieces are composed of rut plates formed by asphalt mixtures, the rut test pieces are used for simulating an asphalt pavement, the water accumulation layer thicknesses are determined according to the distance from a horizontal plane in the test die to the top ends of the rut test pieces, the speeds are determined according to the rotating speed of the dynamic friction coefficient tester and the radius of sliding blocks of the dynamic friction coefficient tester, and the sliding blocks are in contact with the rut test pieces;
and evaluating the skid resistance of the ponding asphalt pavement according to the dynamic friction coefficient.
In another aspect, the present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored, the computer program being implemented by a processor to execute the method for estimating hydrops skid resistance provided in the foregoing embodiments, for example, the method includes:
the method comprises the steps that based on a pre-established asphalt pavement test model, the dynamic friction coefficient of a target measuring point on a rut test piece is obtained under different water accumulation layer thicknesses and different speeds, the asphalt pavement test model comprises a test die, a thin base plate is arranged in the test die, rut test pieces with the same height are arranged on the thin base plate, a dynamic friction coefficient tester is placed on the rut test pieces, the rut test pieces are composed of rut plates formed by asphalt mixtures, the rut test pieces are used for simulating an asphalt pavement, the water accumulation layer thicknesses are determined according to the distance from a horizontal plane in the test die to the top ends of the rut test pieces, the speeds are determined according to the rotating speed of the dynamic friction coefficient tester and the radius of sliding blocks of the dynamic friction coefficient tester, and the sliding blocks are in contact with the rut test pieces;
and evaluating the skid resistance of the ponding asphalt pavement according to the dynamic friction coefficient.
The above-described system embodiments are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. Based on such understanding, the above technical solutions may be essentially or partially implemented in the form of software products, which may be stored in computer readable storage media, such as ROM/RAM, magnetic disk, optical disk, etc., and include instructions for causing a computer power supply screen (which may be a personal computer, a server, or a network power supply screen, etc.) to execute the method according to the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The method for evaluating the anti-skid performance of the ponding pavement is characterized by comprising the following steps of:
the method comprises the steps that based on a pre-established asphalt pavement test model, the dynamic friction coefficient of a target measuring point on a rut test piece is obtained under different water accumulation layer thicknesses and different speeds, the asphalt pavement test model comprises a test die, a thin base plate is arranged in the test die, the rut test piece with the same height is arranged on the thin base plate, a dynamic friction coefficient tester is arranged on the rut test piece, the rut test piece is composed of a rut plate formed by asphalt mixture, the rut test piece is used for simulating an asphalt pavement, the water accumulation layer thickness is determined according to the distance from a horizontal plane in the test die to the top end of the rut test piece, the speed is determined according to the rotating speed of the dynamic friction coefficient tester and the radius of a slide block of the dynamic friction coefficient tester, and the slide block is in contact with the rut test piece;
and evaluating the skid resistance of the ponding asphalt pavement according to the dynamic friction coefficient.
2. The ponded road surface anti-skid property evaluation method according to claim 1, characterized in that the target measurement point is determined by:
randomly selecting a plurality of candidate measuring points on the rut test piece;
acquiring an output curve of the dynamic friction coefficient measured value of each candidate measuring point in a waterless state and at different speeds;
and determining the target measuring point from each candidate measuring point according to the output curve.
3. The accumulated water pavement anti-skid performance evaluation method according to claim 1, wherein the obtaining of the dynamic friction coefficient of the target measuring point on the rut test piece at different accumulated water layer thicknesses and different speeds based on a pre-established asphalt pavement test model comprises:
based on the bituminous pavement test model, acquiring dynamic friction coefficient measured values of target measuring points, water flow resistance borne by the sliding block and pressure borne by the sliding block, which are measured by the dynamic friction coefficient tester under different thicknesses of accumulated water layers and different speeds;
and obtaining the dynamic friction coefficient according to the dynamic friction coefficient measured value of the target measuring point, the water flow resistance and the pressure.
4. The method for evaluating the anti-skid performance of the water accumulation asphalt pavement according to the claim 1, wherein the evaluation of the anti-skid performance of the water accumulation asphalt pavement according to the dynamic friction coefficient comprises the following steps:
establishing accumulated water asphalt pavement anti-skid performance evaluation models with different accumulated water layer thicknesses and dynamic friction coefficients at different speeds;
and evaluating the anti-skid performance of the accumulated water asphalt pavement according to the accumulated water asphalt pavement anti-skid performance evaluation model.
5. The method for evaluating the anti-skid performance of the water accumulation asphalt pavement according to claim 4, wherein the establishing of the model for evaluating the anti-skid performance of the water accumulation asphalt pavement with different water accumulation layer thicknesses and different dynamic friction coefficients at different speeds comprises the following steps:
when the speed is in a first speed interval, establishing a ponding asphalt pavement anti-skid performance evaluation model with different ponding layer thicknesses and dynamic friction coefficients at each first speed in the first speed interval based on a Boltzmann curve equation;
when the speed is in a second speed interval, establishing a ponding asphalt pavement anti-skid performance evaluation model with different ponding layer thicknesses and dynamic friction coefficients at each second speed in the second speed interval based on a unitary linear equation;
wherein the first speed interval is 10km/h to 30 km/h;
the second speed interval is 40km/h to 60 km/h.
6. The accumulated water asphalt pavement anti-skid performance evaluation method according to claim 4, wherein the evaluation of the accumulated water asphalt pavement anti-skid performance according to the accumulated water asphalt pavement anti-skid performance evaluation model comprises:
acquiring first dynamic friction coefficients corresponding to different thicknesses of the ponding layers at the same speed according to the ponding asphalt pavement anti-skid performance evaluation model;
according to the first dynamic friction coefficient, evaluating the anti-skid performance of the accumulated water asphalt pavement with different accumulated water layer thicknesses at the same speed;
according to the accumulated water asphalt pavement anti-skid performance evaluation model, second dynamic friction coefficients corresponding to different speeds under the same accumulated water layer thickness are obtained;
and evaluating the anti-skid performance of the accumulated water asphalt pavement at different speeds under the same thickness of the accumulated water layer according to the second dynamic friction coefficient.
7. The water-logged asphalt pavement anti-skid performance evaluation method according to any one of claims 1 to 6, wherein before evaluating the water-logged asphalt pavement anti-skid performance according to the dynamic friction coefficient, the method further comprises:
and preprocessing the dynamic friction coefficient, and rejecting the dynamic friction coefficient with a discrete value larger than a preset threshold value.
8. The utility model provides a ponding road surface cling property evaluation system which characterized in that includes: the device comprises a data acquisition module and a performance evaluation module;
the data acquisition module is used for acquiring the dynamic friction coefficient of a target measuring point on the rut test piece under different water accumulation layer thicknesses and different speeds based on a pre-established asphalt pavement test model, the asphalt pavement test model comprises a test mould, a thin base plate is arranged in the test mould, the track test pieces with the same elevation are arranged on the thin base plate, a dynamic friction coefficient tester is arranged on the rut test piece, the rut test piece is composed of a rut plate made of asphalt mixture, the rut test piece is used for simulating an asphalt pavement, the thickness of the accumulated water layer is determined according to the distance from the horizontal plane in the test mould to the top end of the rut test piece, the speed is determined according to the rotating speed of the dynamic friction coefficient tester and the radius of a sliding block of the dynamic friction coefficient tester, and the sliding block is in contact with the rut test piece;
and the performance evaluation module is used for evaluating the anti-skid performance of the accumulated water asphalt pavement according to the dynamic friction coefficient.
9. An electronic device comprising a processor and a memory storing a computer program, wherein the processor implements the method for evaluating hydroplaning resistance according to any one of claims 1 to 7 when executing the computer program.
10. A non-transitory computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the hydroplaning performance evaluation method according to any one of claims 1 to 7.
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