A method for detecting water seepage on highway pavement

Abstract

The present invention discloses a method for detecting water seepage in a highway pavement, comprising the following steps: S1, selecting a measuring point: selecting a flat area without obvious cracks on a pavement to be tested as a testing point; S2, installing equipment; S3, conducting a water entry test: a timing module records the time required for the water level in a graduated cylinder to drop from an initial height to a set height; S4, calculating water seepage: comprehensively determining the water seepage condition of the pavement by recording the water level drop height and the time taken, as well as water source flow direction data; S5, analyzing data: repeating S1-S4, selecting multiple measuring points on the pavement to be tested, and analyzing the water seepage capacity of the pavement by combining multiple detection data. The present invention can more accurately identify potential problems in the pavement, such as lateral diffusion or water accumulation, by monitoring the direction and flow of water source infiltration. This multi-angle detection method significantly improves the accuracy of the detection results, making the evaluation of the pavement's water permeability more reliable.

Description

Technical Field

[0001] The present invention relates to the technical field of road surface water seepage detection, in particular to a road surface water seepage detection method. Background Art

[0002] Highway construction plays a crucial role in infrastructure. However, highway pavements are subject to complex environments. Long-term exposure to the elements, coupled with vehicle loads, temperature fluctuations, and rainwater erosion, can lead to various road pavement problems. Water seepage is a common and serious road pavement problem.

[0003] Chinese patent (publication number: CN117740650A), this solution specifically includes a cart main body, a seepage meter main body is provided on the top of the cart main body, both sides of the seepage meter main body are fixedly connected to side frames, the top of the cart main body is fixedly connected to a hydraulic cylinder, the hydraulic cylinder includes a piston rod slidably arranged inside it, the piston rod is fixedly connected to the side frame, a detection port for the seepage meter main body to pass through is opened in the cart main body, and a detection groove is opened in the seepage meter main body. The present invention, by cleaning the sealing area, uses the combination of an air pump and a pressure sensor to detect whether there is a slight gap in the sealing area and performs corresponding processing to avoid water seepage from the slight gap, thereby reducing the occurrence of road seepage and other interference factors, and improving the accuracy of road seepage detection.

[0004] When existing pavements are draining, the water source mainly seeps into the ground through the pavement rather than spreading to the surrounding areas. This indicates that the pavement has good water permeability and there is no obvious lateral diffusion or water accumulation. When the above-mentioned patent detects the water seepage situation of the pavement, it is difficult to comprehensively judge the water seepage situation of the pavement based on the flow direction of the seepage water source during the detection process. Therefore, the amount of seepage alone may not accurately reflect the overall water permeability of the pavement or potential problems. In order to improve the detection accuracy and comprehensiveness, it is necessary to introduce multi-dimensional monitoring methods to more accurately evaluate the water seepage characteristics of the pavement. Furthermore, a highway pavement water seepage detection method is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a method for detecting water seepage on a highway pavement, which has the advantage of avoiding the evaluation error that may be caused by relying solely on a single water seepage amount, and solves the problem that the overall permeability of the road surface may not be accurately reflected by the water seepage amount alone.

[0006] To achieve the above object, the present invention provides the following technical solution: a method for detecting water seepage on a highway pavement, comprising the following steps:

[0007] S1. Select the test point: Select a flat area without obvious cracks on the road surface to be tested as the test point. Clean the dust, dirt and other impurities on the test point to ensure that the base is in close contact with the road surface.

[0008] S2. Equipment installation: Place the inner sealing ring on the measuring point, apply sealing material to the interface between the inner sealing ring and the inside, press the base onto the inner sealing ring, and check whether the base and the road surface are completely sealed to ensure the accuracy of the detection process;

[0009] S3, Water Ingress Test: Add a fixed amount of water to the measuring cylinder, open the solenoid valve on the drainage channel, and start the timing module. When the water level in the measuring cylinder drops to the set height, the timing module records the time required for the water level in the measuring cylinder to drop from the initial height to the set height, closes the solenoid valve, and simultaneously detects the direction of the water source on the road surface;

[0010] S4. Water seepage calculation: The water seepage situation of the road surface is comprehensively determined by recording the height of the water level drop and the time it takes, as well as the flow direction data of the water source;

[0011] S5. Data analysis: Repeat S1-S4, select multiple measurement points on the road surface to be tested, combine multiple test data, analyze the water seepage capacity of the road surface, and determine whether it meets the relevant standards or design requirements.

[0012] Preferably, in a method for detecting water seepage on a highway pavement, the solenoid valve and the timing module are both electrically connected to a data receiving and processing module, and the process of measuring the water seepage condition of the road surface in S4 further includes the following steps:

[0013] S41. Water seepage analysis: Based on the time required to infiltrate a fixed amount of water source, the water seepage rate is calculated using the quantitative water source seepage algorithm formula;

[0014] S42. Water flow direction analysis: Based on the flow direction of water infiltrating the road surface and the water seepage rate, the water seepage direction impact value is calculated using the water seepage direction algorithm formula;

[0015] S43. Comprehensive analysis: Combined with the seepage direction impact value and the seepage rate value, the comprehensive assessment value of the pavement seepage situation is calculated through the seepage comprehensive assessment algorithm formula.

[0016] Preferably, the quantitative water source seepage algorithm formula is specifically: ,in:

[0017] R: expressed as the water seepage rate value;

[0018] A base : represents the pavement seepage area at the measurement point;

[0019] h0: represents the initial water level in the measuring cylinder;

[0020] h f : Indicates the water level setting height in the measuring cylinder;

[0021] t: represents the water level dropping from h0 to h f The time required to arrive.

[0022] Preferably, a method for detecting water seepage on a highway pavement comprises a graduated cylinder fixedly connected to a base, the outlet end of the graduated cylinder being a drainage channel, and a solenoid valve for controlling the flow of water being fixedly provided on the drainage channel, and a measuring structure for detecting water seepage on the pavement being provided on the graduated cylinder;

[0023] The measuring structure includes an inner bracket fixedly connected to the inner wall of the base and a sliding frame, the sliding frame is provided with a rack that can move freely in the horizontal direction, and the two ends of the rack are respectively fixedly connected to a return spring and a resisting spring, and the end of the resisting spring away from the rack is fixedly connected to the sliding frame;

[0024] The end of the resisting spring away from the rack is fixedly connected to a pressure plate, and a transverse sliding groove for horizontal sliding of the pressure plate and the rack is provided on the sliding frame. A pressure sensor is fixedly connected to the position of the sliding frame corresponding to the pressure plate. The pressure sensor is electrically connected to the data receiving and processing module. A floating component is provided on the inner bracket to adjust the horizontal position of the reset spring according to the water level in the measuring cylinder;

[0025] The measuring structure also includes a ring cover plate mounted on the measuring cylinder, to which an infrared sensor for measuring the temperature distribution of the road surface around the base is fixedly connected. The infrared sensor is electrically connected to the data receiving and processing module, and the measuring cylinder is provided with a ring driving component for driving the ring cover plate to rotate horizontally.

[0026] Preferably, the floating assembly includes a floating plate rotating on a fixed axis on the inner bracket, and both ends of the floating plate are coaxially fixedly connected to a group of counterweight rocker rods, and the end of the counterweight rocker rod away from the floating plate is fixedly connected to the float bag;

[0027] The floating disk is fixedly connected with a blocking column, and the side of the rack facing the floating disk is fixedly connected with a positioning column.

[0028] Preferably, the water seepage direction algorithm formula is specifically: ,in:

[0029] F: represents the influence value of water seepage direction;

[0030] A IR : Indicates the abnormal temperature range captured by the infrared sensor;

[0031] A max : Indicates the maximum shooting range of the infrared sensor;

[0032] T max : Indicates the highest temperature in the abnormal temperature area;

[0033] T ambient : Indicates the ambient temperature.

[0034] Preferably, the circular motion assembly comprises a transverse strut fixedly connected to the inner wall of the measuring cylinder, the transverse strut being provided with a unidirectionally rotating ratchet, the ratchet resisting rotation of the transverse strut;

[0035] The ratchet and the ring cover are coaxially fixed, and the ratchet, the ring cover and the measuring cylinder are located on the same central axis. A channel groove is provided on the ring cover.

[0036] Preferably, a gear is fixedly rotated on the transverse support rod, the gear is meshed with the rack, a plurality of sets of clearance grooves arranged in a circular array are provided on the gear, a pawl is provided in the clearance groove, and the pawl is fixedly rotated on the gear, and the pawl is meshed with the ratchet.

[0037] Preferably, the water seepage comprehensive assessment algorithm formula is specifically: , where S represents the comprehensive evaluation value of pavement seepage, and Q1 and Q2 are weight coefficients.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] The present invention introduces a multi-dimensional monitoring method, which not only takes into account the amount of water seepage, but also comprehensively analyzes the direction of water flow. This multi-dimensional evaluation method can more comprehensively reflect the permeability of the road surface and avoid the evaluation errors that may be caused by relying solely on a single amount of water seepage.

[0040] By monitoring the direction and flow of water infiltration, the present invention can more accurately identify potential problems on the road surface, such as lateral diffusion or water accumulation. This multi-angle detection method significantly improves the accuracy of the detection results, making the assessment of the road surface's water permeability more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 A schematic flow chart of a method for detecting water seepage on a highway pavement according to the present invention;

[0042] Figure 2 This is a schematic diagram of the components where the base of the present invention is located;

[0043] Figure 3 This is a schematic diagram of the components where the inner sealing ring of the present invention is located;

[0044] Figure 4 This is a schematic diagram of the components of the slide frame of the present invention;

[0045] Figure 5 For the present invention Figure 4Enlarged view of point A in the middle;

[0046] Figure 6 This is a schematic diagram of the components where the ratchet wheel of the present invention is located;

[0047] Figure 7 For the present invention Figure 6 Enlarged view of point B in the middle;

[0048] Figure 8 This is a schematic diagram of the components of the counterweight swing rod of the present invention;

[0049] Figure 9 This is a schematic diagram of the components where the blocking column of the present invention is located.

[0050] In the figure: 1. Base; 2. Measuring cylinder; 3. Inner sealing ring; 4. Drain channel; 5. Solenoid valve; 6. Infrared sensor; 7. Slide frame; 8. Rack; 9. Isometric column; 10. Float plate; 11. Block column; 12. Inner bracket; 13. Counterweight rocker; 14. Float bag; 15. Pressure sensor; 16. Retaining spring; 17. Pressure plate; 18. Return spring; 19. Transverse support rod; 20. Gear; 21. Ratchet; 22. Give way groove; 23. Pawl; 24. Ring cover; 25. Channel groove. DETAILED DESCRIPTION

[0051] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0052] See also Figures 1 to 9 The present invention provides a technical solution: a method for detecting water seepage on a highway surface, comprising the following steps:

[0053] S1. Select a test point: Select a flat area without obvious cracks on the road surface to be tested as the test point. Clean the dust, dirt and other impurities on the test point to ensure that the base 1 is in close contact with the road surface.

[0054] S2. Equipment installation: Place the inner sealing ring 3 on the measuring point, apply sealing material to the interface between the inner sealing ring 3 and the inside, press the base 1 onto the inner sealing ring 3, and check whether the base 1 and the road surface are completely sealed to ensure the accuracy of the detection process;

[0055] S3, water entry test: A fixed amount of water is added to the measuring cylinder 2, the solenoid valve 5 on the drainage channel 4 is opened, and the timing module is started. When the water level in the measuring cylinder 2 drops to the set height, the timing module records the time required for the water level in the measuring cylinder 2 to drop from the initial height to the set height, and closes the solenoid valve 5 while detecting the flow direction of the water source on the road surface;

[0056] S4. Water seepage calculation: The water seepage situation of the road surface is comprehensively determined by recording the height of the water level drop and the time it takes, as well as the flow direction data of the water source;

[0057] S5. Data analysis: Repeat S1-S4, select multiple measurement points on the road surface to be tested, combine multiple test data, analyze the water seepage capacity of the road surface, and determine whether it meets the relevant standards or design requirements.

[0058] like Figure 1 As shown, select a suitable measuring point on the road surface to be tested. The selection of the measuring point is crucial because it directly affects the accuracy of the test results. The specific requirements are as follows: give priority to flat areas without obvious cracks. Such areas can better reflect the true water permeability of the road material and avoid errors caused by surface cracks or unevenness. At the same time, remove dust, dirt and other impurities on the measuring point to ensure that the detection device can be in close contact with the road surface. This step ensures that the test environment conditions are consistent and avoids external factors affecting the measurement results.

[0059] At the same time, place the inner sealing ring 3 of the detection device on the selected measuring point and ensure that it is stable and motionless. Apply sealing material at the interface between the inner sealing ring 3 and the road surface. This step is to prevent water from leaking from the contact point, thereby affecting the accurate measurement of the seepage amount. Subsequently, the base 1 device is buckled onto the inner sealing ring 3 to ensure that the detection device and the road surface are completely sealed. The sealing treatment can effectively prevent water from leaking from the interface between the equipment and the road surface, ensuring that all moisture penetrates through the road surface and improving the measurement accuracy.

[0060] Among them, a certain amount of water is added to the vector cylinder 2 to ensure that the water level reaches the initially set height, and the valve solenoid valve 5 on the sewer channel 4 is started to allow the water to flow to the road surface. At the same time, the timing module is started to record in real time the time required for the water level to drop from the initial height to the set height. During the test, by monitoring the flow direction of the water source in the road surface, it is determined whether the water penetrates downward evenly or diffuses to the surrounding areas. By real-time monitoring of water level changes and flow direction, the infiltration behavior of the water source can be more intuitively understood, providing basic data for subsequent water seepage assessment.

[0061] At the same time, based on the recorded water level drop height and the time it takes, the seepage rate per unit time is calculated. Taking into account the flow direction data of the water source, it is determined whether the water source is evenly seeping downward or spreading to the surrounding areas, thereby more comprehensively evaluating the pavement's seepage capacity. By combining the seepage rate and the water source flow direction, a more comprehensive assessment of the pavement's seepage situation can be made, not only limited to quantitative data, but also an in-depth analysis of the water source's seepage behavior.

[0062] Furthermore, the solenoid valve 5 and the timing module are both electrically connected to a data receiving and processing module. The process of measuring the road surface water seepage in S4 further includes the following steps:

[0063] S41. Water seepage analysis: Based on the time required to infiltrate a fixed amount of water source, the water seepage rate is calculated using the quantitative water source seepage algorithm formula;

[0064] S42. Water flow direction analysis: Based on the flow direction of water infiltrating the road surface and the water seepage rate, the water seepage direction impact value is calculated using the water seepage direction algorithm formula;

[0065] S43. Comprehensive analysis: Combined with the seepage direction impact value and the seepage rate value, the comprehensive assessment value of the pavement seepage situation is calculated through the seepage comprehensive assessment algorithm formula.

[0066] like Figure 1 and Figure 2 As shown, in water seepage detection, it is first necessary to analyze the amount of water seepage. By measuring the time required for the water source to seep into the road surface from the measuring cylinder 2 and combining it with the known quantitative water source volume, the quantitative water source seepage algorithm formula is used to calculate the seepage rate value. This value reflects the speed at which the water source penetrates into the road surface and is the basic data for evaluating the water seepage performance of the road surface.

[0067] After obtaining the seepage rate, the flow direction of the water source during the infiltration process is analyzed. By measuring the flow direction of the water source in the pavement (whether the water flow is seeping downward or spreading around) and combining it with the seepage rate value, the seepage flow direction impact value is calculated using the seepage flow direction algorithm formula. This value can reflect the impact of the water source flow direction on the seepage process and help to more comprehensively understand the seepage behavior of the pavement. Among them, the seepage flow direction impact value can supplement the information of the seepage rate, help to form a comprehensive understanding of the pavement seepage behavior, and ensure the accuracy of the evaluation results.

[0068] Based on the analysis of seepage volume and flow direction, the seepage flow direction impact value and the seepage rate value are combined through the seepage comprehensive assessment algorithm formula to calculate a comprehensive assessment value of the pavement seepage situation. This assessment value can be used as the final indicator to judge the overall seepage performance of the pavement and help determine whether the pavement meets the design requirements or whether further maintenance is required.

[0069] Furthermore, the quantitative water source seepage algorithm formula is specifically as follows: ,in:

[0070] R: expressed as the water seepage rate value;

[0071] A base : represents the pavement seepage area at the measurement point;

[0072] h0: represents the initial water level in the measuring cylinder 2;

[0073] h f : represents the water level setting height in the measuring cylinder 2;

[0074] t: represents the water level dropping from h0 to h f The time required to arrive.

[0075] One preferred embodiment is a method for detecting water seepage on a road surface, comprising a measuring cylinder 2 fixedly connected to a base 1, the outlet end of the measuring cylinder 2 being a drainage channel 4, and a solenoid valve 5 for controlling the flow of water fixedly provided on the drainage channel 4, and a measuring structure for detecting water seepage on the road surface being provided on the measuring cylinder 2;

[0076] The measuring structure includes an inner bracket 12 fixedly connected to the inner wall of the base 1 and a slide frame 7. The slide frame 7 is provided with a rack 8 that can move freely in the horizontal direction. The two ends of the rack 8 are respectively fixedly connected to a return spring 18 and a resisting spring 16, and the end of the resisting spring 16 away from the rack 8 is fixedly connected to the slide frame 7.

[0077] The end of the resisting spring 16 away from the rack 8 is fixedly connected to a pressure plate 17. A transverse sliding groove is provided on the slide frame 7 for the horizontal sliding of the pressure plate 17 and the rack 8. A pressure sensor 15 is fixedly connected to the position of the slide frame 7 corresponding to the pressure plate 17. The pressure sensor 15 is electrically connected to the data receiving and processing module. A floating component is provided on the inner bracket 12 to adjust the horizontal position of the return spring 18 according to the water level in the measuring cylinder 2.

[0078] The measuring structure also includes a ring cover 24 mounted on the measuring cylinder 2, and an infrared sensor 6 for measuring the temperature distribution of the road surface around the base 1 is fixedly connected to the ring cover 24. The infrared sensor 6 is electrically connected to the data receiving and processing module. The measuring cylinder 2 is provided with a ring driving component that drives the ring cover 24 to rotate horizontally.

[0079] like Figure 2-Figure 4As shown, the water source held in the measuring cylinder 2 flows into the chamber formed by the road surface and the resistance column 11 under the action of gravity. As the water source gradually seeps into the road surface, the water level line in the measuring cylinder 2 gradually moves downward until it reaches the set height. At this time, the pressure signal value received by the pressure sensor 15 reaches the set value, and the signal receiving and processing module receives the pressure signal from the pressure sensor 15 in real time. After the pressure received by the pressure sensor 15 reaches the set pressure, the signal receiving and processing module sends a control signal to the control terminal and collects the timing signal of the timing module. The control terminal closes the solenoid valve 5 to prevent the water source from continuing to flow to the road surface.

[0080] At the same time, when the water level in the measuring cylinder 2 drops to the set height, the annular component can be driven to operate, and then the annular cover plate 24 and the infrared sensor 6 set therein can be driven to rotate in the horizontal direction to collect the water seepage around the base 1 and determine the flow direction of the seepage water by the temperature difference. At the same time, the temperature data collected by the annular cover plate 24 is transmitted to the signal receiving and processing module, and the signal receiving and processing module pre-processes the received temperature signal, including noise filtering and data smoothing, to ensure the accuracy of the data.

[0081] Subsequently, the signal receiving and processing module calculates the temperature difference in the detection area of ​​the infrared sensor 6, mainly calculating the difference between the current measurement point and the ambient temperature. This temperature difference is a key indicator for judging the direction of water seepage. The signal receiving and processing module identifies areas with large temperature differences and determines whether there is abnormal temperature distribution in these areas. By analyzing the size of the temperature difference in different directions, the module can determine the direction of water infiltration in the road surface (such as downward penetration or diffusion in all directions).

[0082] Among them, a channel groove 25 is provided on the ring cover plate 24. The opening of the channel groove 25 can facilitate the staff to add water into the measuring cylinder 2, providing a channel for the addition of water. At the same time, when the water in the measuring cylinder 2 seeps into the road surface, the gas in the chamber formed between the inner sealing ring 3 and the road surface can be discharged from the measuring cylinder 2 through the channel groove 25, thereby providing a channel for the gas discharge process to ensure that the water in the measuring cylinder 2 can flow downward smoothly.

[0083] Furthermore, the floating assembly includes a floating plate 10 that rotates on an inner bracket 12, and a set of counterweight rocker rods 13 are coaxially fixedly connected to both ends of the floating plate 10. The end of the counterweight rocker rod 13 away from the floating plate 10 is fixedly connected to a float bag 14.

[0084] The floating disk 10 is fixedly connected to a blocking column 11 , and the rack 8 is fixedly connected to a side facing the floating disk 10 with an alignment column 9 .

[0085] like Figure 4 、 Figure 5 、 Figure 6 and Figure 9As shown, the float bag 14 provided on the counterweight rocker 13 is always at the water level position in the measuring cylinder 2 under the action of buoyancy. When the water source in the measuring cylinder 2 gradually seeps into the road surface, the water level in the measuring cylinder 2 drops, and then the float plate 10 is driven to deflect a certain angle in the vertical direction under the action of the gravity of the counterweight rocker 13.

[0086] At the same time, the resistance column 11 provided on the float disk 10 rotates synchronously with the float disk 10, and the horizontal position and horizontal height of the inner bracket 12 change during the rotation process. The change of its horizontal position can push the isotropic column 9 and the rack 8 in the horizontal direction, thereby driving the resisting spring 16 to undergo compression deformation and the return spring 18 to undergo extension deformation, and prompting the pressure plate 17 to contact with the pressure sensor 15, so that when the water level line in the measuring cylinder 2 is about to reach the set height, the pressure value applied to the pressure sensor 15 is the maximum.

[0087] Among them, as the water level continues to drop, the float disk 10 continues to rotate, thereby driving the resistance column 11 on it to rotate synchronously until the resistance column 11 is separated from the position of the same position column 9. At this time, the resisting spring 16 and the reset spring 18 restore their deformation and drive the rack 8 to return to its initial position. At this time, the pressure plate 17 is no longer in contact with the pressure sensor 15. At the same time, through the horizontal movement of the reset spring 18 on the slide frame 7, the annular component can be driven to operate to detect the flow direction of the seepage water.

[0088] Furthermore, the seepage flow direction algorithm formula is as follows: ,in:

[0089] F: represents the influence value of water seepage direction;

[0090] A IR : represents the abnormal temperature range captured by the infrared sensor 6;

[0091] A max : represents the maximum shooting range of the infrared sensor 6;

[0092] T max : Indicates the highest temperature in the abnormal temperature area;

[0093] T ambient : Indicates the ambient temperature.

[0094] On the basis of the embodiment of the floating assembly, the annular moving assembly includes a transverse strut 19 fixedly connected to the inner wall of the measuring cylinder 2, and a unidirectionally rotating ratchet 21 is provided on the transverse strut 19, and the ratchet 21 resists rotation on the transverse strut 19;

[0095] The ratchet 21 and the ring cover 24 are coaxially fixed, and the ratchet 21, the ring cover 24 and the measuring cylinder 2 are located on the same central axis.

[0096] A gear 20 is fixedly rotated on the transverse support rod 19, and the gear 20 is meshed with the rack 8. A plurality of groups of clearance grooves 22 arranged in a circular array are provided on the gear 20, and a pawl 23 is provided in the clearance groove 22. The pawl 23 is fixedly rotated on the gear 20, and the pawl 23 is meshed with the ratchet 21.

[0097] like Figure 4 、 Figure 6 and Figure 7 As shown, when the water level in the measuring cylinder 2 gradually drops, the rack 8 can be driven to move toward the pressure sensor 15 through the floating assembly. The rack 8 is meshed with the gear 20, so the gear 20 can be driven to rotate in the forward direction. However, at this time, when the gear 20 rotates, since the pawl 23 is not meshed with the ratchet 21, the ratchet 21 and the coaxially arranged ring cover 24 will not be driven to rotate, and the position of the infrared sensor 6 remains unchanged, that is, when the water source in the measuring cylinder 2 seeps into the road surface, the infrared sensor 6 will not move.

[0098] At the same time, when the water level in the measuring cylinder 2 reaches the set height, the rack 8 moves away from the pressure sensor 15 under the action of the reset spring 18 and the resisting spring 16. At this time, the reset spring 18 can drive the gear 20 to reverse in the horizontal direction, and the pawl 23 and the ratchet 21 are in a meshing state. Therefore, the ratchet 21 can drive the ring cover 24 and the infrared sensor 6 arranged thereon to rotate, so that the infrared sensor 6 detects the temperature conditions around the measuring point. It should be noted that the gear 20 and the pawl 23 are provided with a torsion spring that drives the pawl 23 to return to its initial deflection state. The torsion spring is an existing device and a technical means well known to those skilled in the art, so it is not shown in the figure.

[0099] Furthermore, the water seepage comprehensive assessment algorithm formula is specifically as follows: , where S represents the comprehensive evaluation value of pavement seepage, and Q1 and Q2 are weight coefficients.

[0100] Among them, Q1 and Q2 are used to balance the contribution of the seepage rate R and the seepage flow direction influence value F to the comprehensive evaluation value S of the pavement seepage situation. The weight coefficients Q1 and Q2 mainly depend on the following factors:

[0101] Historical data analysis: By analyzing a large amount of historical data and actual test results, regression analysis or machine learning methods can be used to determine weight coefficients. Specifically, the optimal weight combination is obtained by minimizing the error between the predicted value and the actual test value.

[0102] Experimental data calibration: Through multiple experimental measurements, the values ​​of R and F are calculated under different test conditions. Then, by comparing the test results with the actual road performance, Q1 and Q2 are gradually adjusted until the model's prediction effect is optimal.

[0103] In actual use, the values ​​of Q1 and Q2 can be preliminarily set according to different road conditions. For example, on a highly permeable road surface, the seepage rate R may be more important than the seepage direction F, and in this case, Q1 can be given a larger weight.

[0104] Among them, the values ​​of Q1 and Q2 can be determined through various methods such as historical data, experimental calibration, and engineering experience. They are usually between 0 and 1. According to the test results in actual application scenarios, the values ​​of Q1 and Q2 can be gradually adjusted and optimized to improve the accuracy of pavement seepage assessment.

[0105] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A method for detecting water seepage on a highway pavement, characterized in that: The invention comprises a measuring cylinder (2) fixedly connected to a base (1), the outlet end of the measuring cylinder (2) is a water channel (4), and a solenoid valve (5) for controlling the flow of water is fixedly provided on the water channel (4), and is characterized in that: the measuring cylinder (2) is provided with a measuring structure for detecting water seepage on a road surface; the measuring structure comprises an inner bracket (12) fixedly connected to the inner wall of the base (1) and a slide frame (7), the slide frame (7) is provided with a rack (8) that can move freely in the horizontal direction, the two ends of the rack (8) are respectively fixedly connected to a reset spring (18) and a resisting spring (16), and the end of the resisting spring (16) away from the rack (8) is fixedly connected to the slide frame (7); the resisting spring (16) ) is fixedly connected to the end away from the rack (8) with a pressure plate (17), and a transverse slide groove for the pressure plate (17) and the rack (8) to slide horizontally is provided on the slide frame (7), and a pressure sensor (15) is fixedly connected to the position of the slide frame (7) corresponding to the pressure plate (17), and the pressure sensor (15) is electrically connected to the data receiving and processing module. The inner bracket (12) is provided with a floating component for adjusting the horizontal position of the return spring (18) according to the water level height in the measuring cylinder (2); the measuring structure also includes a ring cover (24) mounted on the measuring cylinder (2), and an infrared sensor (6) for the temperature distribution of the road surface around the base (1) is fixedly connected to the ring cover (24), and the infrared sensor (6) is connected to the data receiving and processing module. The measuring cylinder (2) is electrically connected to the processing module, and a ring-moving assembly for driving the ring cover (24) to rotate horizontally is provided on the measuring cylinder (2); the floating assembly includes a floating disk (10) rotating on a fixed axis on the inner bracket (12), and both ends of the floating disk (10) are coaxially fixedly connected to a group of counterweight pendulum rods (13), and the end of the counterweight pendulum rod (13) away from the floating disk (10) is fixedly connected to the floating bag (14); the floating disk (10) is fixedly connected to a blocking column (11), and the rack (8) is fixedly connected to a side of the floating disk (10) with a co-position column (9); the ring-moving assembly includes a transverse support rod (19) fixedly connected to the inner wall of the measuring cylinder (2), and the transverse support rod (19) is provided with a one-way rotating ratchet ( 21), the ratchet (21) rotates with resistance on the transverse support rod (19); the ratchet (21) and the ring cover (24) are coaxially fixed, and the ratchet (21), the ring cover (24) and the measuring cylinder (2) are on the same central axis, and the ring cover (24) is provided with a channel groove (25); a gear (20) is fixedly rotated on the transverse support rod (19), the gear (20) is meshed with the rack (8), and the gear (20) is provided with a plurality of groups of paving grooves (22) arranged in a ring array, and a pawl (23) is provided in the paving groove (22), and the pawl (23) is fixedly rotated on the gear (20), and the pawl (23) is meshed with the ratchet (21); comprising the following steps: S1. Select the test point: Select a flat area without obvious cracks on the road surface to be tested as the test point. Clean the dust, dirt and other impurities on the test point to ensure that the base (1) is in close contact with the road surface. S2. Equipment installation: Place the inner sealing ring (3) on the measuring point, apply sealing material to the interface between the inner sealing ring (3) and the inside, buckle the base (1) on the inner sealing ring (3), and check whether the base (1) and the road surface are completely sealed to ensure the accuracy of the detection process; S3, water entry test: add a fixed amount of water into the measuring cylinder (2), open the solenoid valve (5) on the water channel (4), and start the timing module. When the water level in the measuring cylinder (2) drops to the set height, the timing module records the time required for the water level in the measuring cylinder (2) to drop from the initial height to the set height, and closes the solenoid valve (5), while detecting the flow direction of the water source in the road surface; S4. Water seepage calculation: The water seepage situation of the road surface is comprehensively determined by recording the height of the water level drop and the time it takes, as well as the flow direction data of the water source; S5. Data analysis: Repeat S1-S4, select multiple measurement points on the road surface to be tested, combine multiple test data, analyze the water permeability of the road surface, and determine whether it meets the relevant standards or design requirements; The solenoid valve (5) and the timing module are both electrically connected to a data receiving and processing module. The process of measuring the road surface water seepage in S4 further includes the following steps: S41. Water seepage analysis: Based on the time required to infiltrate a fixed amount of water source, the water seepage rate is calculated using the quantitative water source seepage algorithm formula; S42. Water flow direction analysis: Based on the flow direction of water infiltrating the road surface and the water seepage rate, the water seepage direction impact value is calculated using the water seepage direction algorithm formula; S43. Comprehensive analysis: Combine the seepage direction impact value and the seepage rate value, and use the seepage comprehensive assessment algorithm formula to calculate the comprehensive assessment value of the road seepage situation; The quantitative water source seepage algorithm formula is specifically: ,in: R: expressed as the water seepage rate value; A base : represents the pavement seepage area at the measurement point; h0: represents the initial water level in the measuring cylinder (2); h f : represents the water level setting height in the measuring cylinder (2); t: represents the water level dropping from h0 to h f the time required to arrive; The specific formula of the seepage flow direction algorithm is: ,in: F: represents the influence value of water seepage direction; A IR : represents the abnormal temperature range captured by the infrared sensor (6); A max : represents the maximum shooting range of the infrared sensor (6); T max : Indicates the highest temperature in the abnormal temperature area; T ambient : Indicates the ambient temperature; The formula of the comprehensive water seepage assessment algorithm is as follows: , where S represents the comprehensive evaluation value of pavement seepage, and Q1 and Q2 are weight coefficients.

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