Asphalt pavement damage detection device and process

Abstract

The present application relates to an asphalt pavement damage detection device and process, which includes a box, a baffle and a detection block, the box is slidably connected to the pavement, the box is provided with a accommodating cavity, the baffle is connected to the inner wall of the accommodating cavity, the baffle divides the accommodating cavity into a dye cavity and an installation cavity, the dye cavity is used to place the dye, the lower end of the box is provided with an installation port, the installation port is connected to the installation cavity, the detection block is slidably connected to the baffle, one end of the detection block is arranged in the installation cavity, the other end of the detection block is used to extend into the crack after passing through the installation port, the detection block is provided with a channel port, the channel port passes through the detection block, one end of the channel port opens toward the pavement, the baffle is provided with a discharge port, the discharge port is used to connect the dye cavity and the channel port. When cracks appear on the pavement, the detection block slides downward and extends into the crack, the discharge port is connected to the channel port, the dye in the dye cavity is discharged from the discharge port and falls on the pavement for marking, which is convenient for subsequent repair of the asphalt pavement and improves the detection efficiency.

Description

Technical Field

[0001] The present application relates to the field of road surface damage detection, and in particular to an asphalt road surface damage detection device and process. Background Art

[0002] As people's living standards improve, the pace of life is getting faster and faster, and logistics efficiency is correspondingly improved. Logistics plays an irreplaceable role in road transportation, and ensuring the smooth flow of road transportation and maintaining roads are topics that cannot be avoided in life. The integrity of road maintenance directly affects the efficiency and cost of transportation. In the process of modern transportation, there are more and more heavy vehicles. While these heavy vehicles improve transportation efficiency, they also cause inevitable damage to asphalt pavement.

[0003] Asphalt pavement refers to various types of pavement paved with road asphalt materials mixed into mineral materials. Asphalt pavement is widely used in high-grade highways due to its advantages such as short construction period and recyclability. However, under the influence of load, ambient temperature, humidity, etc., cracks often occur in the flexible asphalt surface layer. These damages shorten the service life of the asphalt pavement, increase traffic pressure, and also bring a heavy economic burden. Therefore, it is necessary to detect and repair damaged asphalt pavement in a timely manner.

[0004] There are many methods for detecting asphalt pavement on highways, mainly including: observation method, video measurement method and ground penetrating radar method. The observation method mainly refers to monitoring the damage of the road surface with the human eye or with the help of video. In specific practical operations, this method is relatively primitive and inefficient, and it is easy to ignore smaller cracks. When using video measurement method and ground penetrating radar method, the monitoring equipment needs to move on the road during the monitoring process, and the equipment needs to form an image. The location of the road cracks is obtained through data processing, and then the cracks are searched and marked on the spot according to the data for subsequent repairs, and the detection efficiency is low. Summary of the invention

[0005] In order to improve detection efficiency, the present application provides an asphalt pavement damage detection device and process.

[0006] In the first aspect, the present application provides an asphalt pavement damage detection device that adopts the following technical solution:

[0007] A device for detecting damage to an asphalt pavement comprises a box, a baffle and a detection block, wherein the box is slidably connected to the pavement, the box is provided with a accommodating cavity, the baffle is connected to the inner wall of the accommodating cavity, the baffle divides the accommodating cavity into a dye cavity and an installation cavity, the dye cavity is used to place a dye, the lower end of the box is provided with an installation opening, the installation opening is connected to the installation cavity, the detection block is slidably connected to the baffle, one end of the detection block is provided in the installation cavity, the other end of the detection block passes through the installation opening and is used to extend into a crack, the detection block is provided with a passage opening, the passage opening passes through the detection block, one end of the passage opening opens toward the pavement, the baffle is provided with a discharge opening, the discharge opening is used to connect the dye cavity and the passage opening.

[0008] By adopting the above technical solution, the detection block slides downward under the action of gravity until it abuts the road surface. When cracks appear on the road surface, the detection block slides downward into the cracks, the discharge port is connected with the channel port, and the dye in the dye chamber is discharged from the discharge port and falls onto the road surface for marking, which facilitates subsequent repairs of the asphalt road surface and improves detection efficiency.

[0009] Preferably, the detection block includes a fixed block and a guide block, the fixed block is slidably connected to the baffle, the sliding direction of the fixed block is vertical, the upper end of the guide block is connected to the fixed block, the lower end of the guide block passes through the mounting opening and is used to extend into the crack, and along the horizontal direction, the length of the fixed block is greater than the inner diameter of the mounting opening.

[0010] By adopting the above technical solution, the fixed block cannot slide out of the detection block, so that the fixed block has a maximum displacement, preventing the discharge port from leaking into the installation cavity due to the lack of a fixed block to block it, thereby damaging the detection device.

[0011] Preferably, the guide block includes a connecting block and an abutment block, the connecting block is connected to the fixed block, the abutment block is connected to the end of the connecting block facing away from the fixed block, the connecting block passes through the mounting opening, the outer diameter of the abutment block increases with increasing height, and the lower end of the abutment block is used to abut the crack.

[0012] By adopting the above technical solution, the outer diameter of the abutment block increases with the increase of height. When the lower end of the abutment block abuts the crack, the dye marks the position. At the same time, the box is constantly displaced, and the abutment block slides upward along the inner wall of the crack to continuously detect the asphalt pavement without pausing, thereby improving the detection efficiency.

[0013] Preferably, the height of the passage opening decreases as it moves away from the baffle.

[0014] By adopting the above technical solution, the dye can be easily blocked and discharged from the channel opening, thereby improving the detection efficiency.

[0015] Preferably, it further comprises a spring, one end of which is connected to the inner wall of the installation cavity facing the installation opening, and the other end of which is connected to the upper end of the detection block.

[0016] By adopting the above technical solution, the spring enables the detection block to always be pressed against the road surface, which facilitates the detection of cracks and improves the detection efficiency.

[0017] Preferably, a feed inlet is provided at the upper end of the box body, and the feed inlet is connected to the dye chamber.

[0018] By adopting the above technical solution, it is convenient to replenish the dye into the dye chamber, so that the detection device can be used repeatedly.

[0019] Preferably, it further comprises a sealing ring, an annular groove is provided at one end of the baffle plate facing the installation cavity, the annular groove is coaxially arranged with the discharge port, the inner diameter of the annular groove is larger than the inner diameter of the discharge port, and the sealing ring is embedded in the annular groove.

[0020] By adopting the above technical solution, the sealing ring forms a seal between the detection block and the baffle, reducing the probability of dye leaking into the installation cavity.

[0021] Preferably, a roller is connected to the lower end of the box.

[0022] By adopting the above technical solution, the detection device can be easily slid on the asphalt pavement, thereby improving the detection efficiency.

[0023] Preferably, the outer wall of the box body is connected with a connecting ring, and the connecting ring is used for rope traction.

[0024] By adopting the above technical solution, the rope is connected to the connecting ring, and the detection device can be pulled to slide by other means of transportation, thereby improving the detection efficiency.

[0025] In a second aspect, the present application provides an asphalt pavement damage detection process using the following technical solution:

[0026] A process for detecting damage to an asphalt pavement comprises the following steps:

[0027] Clear obstacles from the road;

[0028] Detect road surface smoothness;

[0029] Detect and mark road cracks.

[0030] By adopting the above technical solution, there is no need to repeatedly inspect the asphalt pavement during subsequent repairs, which makes it easier to repair damaged parts of the asphalt pavement and improves inspection efficiency.

[0031] In summary, the present application includes at least one of the following beneficial technical effects:

[0032] 1. The detection block slides downward under the action of gravity until it contacts the road surface. When cracks appear on the road surface, the detection block slides downward into the cracks, and the discharge port is connected with the channel port. The dye in the dye chamber is discharged from the discharge port and falls onto the road surface for marking, which is convenient for subsequent repair of the asphalt road surface and improves the detection efficiency;

[0033] 2. The inner diameter of the abutment block increases with the increase of height. When the lower end of the abutment block abuts the crack, the dye marks the position. At the same time, the box is constantly moving, and the abutment block slides upward along the inner wall of the crack to continuously detect the asphalt pavement without pausing, thereby improving the detection efficiency.

[0034] 3. The spring ensures that the detection block is always pressed against the road surface, making it easier to detect cracks and improving detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 The present invention is a schematic diagram of the overall structure of an asphalt pavement damage detection device.

[0036] Figure 2 The present invention is a cross-sectional view of an asphalt pavement damage detection device.

[0037] Explanation of the reference numerals: 1. Box body; 11. Accommodating chamber; 111. Dye chamber; 112. Installation chamber; 12. Weight block; 13. Connector; 131. Connecting plate; 132. Rotating shaft; 14. Feed inlet; 15. Connecting ring; 16. Installation port; 2. Baffle; 21. Discharge port; 22. Ring groove; 3. Roller; 4. Cover body; 5. Detection block; 51. Fixed block; 52. Guide block; 521. Connecting block; 522. Abutment block; 53. Channel opening; 531. First discharge channel; 532. Second discharge channel; 6. Spring; 7. Sealing ring. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-2 This application is described in further detail.

[0039] The present application embodiment discloses an asphalt pavement damage detection device. Figure 1 and Figure 2 A device for detecting damage to an asphalt pavement includes a box body 1, a baffle 2, a roller 3, a cover body 4, a detection block 5, a spring 6 and a sealing ring 7.

[0040] Reference Figure 2The box body 1 is set as a rectangular parallelepiped, and the box body 1 is provided with a accommodating cavity 11. The baffle 2 is fixedly connected to the inner wall of the accommodating cavity 11. The baffle 2 is vertically arranged, and the plane where the baffle 2 is located is perpendicular to the length direction of the box body 1. The baffle 2 divides the accommodating cavity 11 into a dye cavity 111 and an installation cavity 112. The bottom wall of the dye cavity 111 is fixedly connected with a weight block 12, and the weight block 12 is used to lower the center of gravity of the device. The four corners of the lower end of the box body 1 are connected with connecting parts 13, and the connecting parts 13 include two connecting plates 131 and a rotating shaft 132. The connecting plate 131 is fixedly connected to the lower end of the box body 1, and the two connecting plates 131 are parallel to each other. The rotating shaft 132 is arranged between the two connecting plates 131, one end of the rotating shaft 132 is fixedly connected to one connecting plate 131, and the other end of the rotating shaft 132 is fixedly connected to the other connecting plate 131. The axis of the rotating shaft 132 is parallel to the width direction of the box body 1, and the roller 3 is coaxially connected to the outer periphery of the rotating shaft 132. The rotation axis of the roller 3 is colinear with the rotating shaft 132, and the outer periphery of the roller 3 fits the road surface.

[0041] The upper end of the box body 1 is provided with a feed port 14, which is connected to the dye cavity 111, and the dye cavity 111 is used to store the dye, and the cover body 4 is threadedly connected to the outer periphery of the feed port 14 and covers the feed port 14. Along the length direction of the box body 1, one end of the box body 1 close to the dye cavity 111 is connected to a connecting ring 15, and the connecting ring 15 is used for rope traction.

[0042] Reference Figure 2 The detection block 5 includes a fixing block 51 and a guide block 52 , and the guide block 52 includes a connecting block 521 and an abutting block 522 . The fixing block 51 is set as a rectangular parallelepiped, and the fixing block 51 is embedded in the installation cavity 112. The length of the fixing block 51 is equal to the length of the installation cavity 112, and the width of the fixing block 51 is equal to the width of the installation cavity 112. The lower end of the box body 1 is provided with a mounting port 16, and the mounting port 16 is connected to the installation cavity 112. The length of the fixing block 51 is greater than the inner diameter of the mounting port 16. The upper end of the connecting block 521 is fixedly connected to the lower end of the fixing block 51. The connecting block 521 is set as a cylinder. The outer periphery of the connecting block 521 is slidably connected to the inner wall of the mounting port 16. The sliding direction of the connecting block 521 is vertical. The abutting block 522 is set as a cone. The upper end of the abutting block 522 is coaxially fixedly connected to the lower end of the connecting block 521. The outer diameter of the abutting block 522 increases with increasing height. The maximum outer diameter of the abutting block 522 is equal to the outer diameter of the connecting block 521. The lower end of the abutting block 522 is used to extend into the cracks in the road surface. One end of the spring 6 is fixedly connected to the inner wall of the installation cavity 112 facing the installation opening 16 , and the other end of the spring 6 is fixedly connected to the upper end of the fixing block 51 .

[0043] Reference Figure 2The detection block 5 is provided with a channel opening 53, and the channel opening 53 includes a first material discharge channel 531 and a second material discharge channel 532. The first material discharge channel 531 is provided in the fixing block 51, and the second material discharge channel 532 is provided in the connecting block 521. The baffle plate 2 is provided with a discharge port 21, and the discharge port 21 is connected to the dye chamber 111. One end of the first material discharge channel 531 is used to connect to the discharge port 21, and the other end of the first material discharge channel 531 is connected to one end of the second material discharge channel 532. The opening of the other end of the second material discharge channel 532 faces the road surface. The first material discharge channel 53 1 decreases as it moves away from the baffle 2, the height of the second material discharge channel 532 decreases as it moves away from the baffle 2, the angle between the axis of the first material discharge channel 531 and the axis of the second material discharge channel 532 is set to be an obtuse angle, the inner diameter of the discharge port 21 is larger than the inner diameter of the first material discharge channel 531, the end of the baffle 2 facing the installation cavity 112 is provided with an annular groove 22, the annular groove 22 is coaxially arranged with the discharge port 21, the inner diameter of the annular groove 22 is larger than the inner diameter of the discharge port 21, the sealing ring 7 is embedded in the annular groove 22, and the end of the sealing ring 7 away from the bottom of the annular groove 22 abuts against the fixed block 51. When the lower end of the fixed block 51 fits the inner wall of the installation cavity 112 toward the spring 6, the height of the upper end of the fixed block 51 is greater than the height of the discharge port 21, and when the abutting block 522 abuts against the road surface without cracks, the height of the lower end of the fixed block 51 is lower than the height of the discharge port 21. The depth of the crack is different, the length of time the first feed channel 531 is connected to the discharge port 21 is different, and the amount of dye discharged from the discharge port 21 is different. The depth of the crack can be preliminarily judged. When the crack depth is greater than the maximum displacement limit of the abutment block, the amount of dye discharged from the discharge port is the same.

[0044] The implementation principle of an asphalt pavement damage detection device in an embodiment of the present application is as follows: the detection device is placed on the asphalt pavement to be detected, the abutment block 522 abuts the asphalt pavement, and after the dye is injected into the dye chamber 111 from the feed port 14, the feed port 14 is blocked using the cover body 4, one end of the rope is tied to the connecting ring 15, and the other end is used for people or vehicles to pull, so that the device moves on the asphalt pavement. If there is a crack on the asphalt pavement, the lower end of the abutment block 522 extends into the crack, and the channel port 53 is connected with the discharge port 21. The dye flows from the dye chamber 111 through the channel port 53 to the road surface for marking. Under the displacement of the box body 1, the abutment block 522 moves upward, slides out of the crack, and blocks the discharge port 21 again, and the operation is repeated when the next crack is encountered.

[0045] The present application also discloses an asphalt pavement damage detection process, comprising the following steps:

[0046] Clear obstacles from the road;

[0047] Use FWD drop weight deflectometer to test the road surface flatness;

[0048] Detect and mark road cracks.

[0049] The implementation principle of an asphalt pavement damage detection process in an embodiment of the present application is as follows: when detecting asphalt pavement damage, the pavement is first cleaned to ensure that the detection process is not disturbed by other debris on the pavement, the FWD drop weight deflectometer is used to detect the pavement flatness, the deflection value is calculated, the damaged layer and defect degree of the pavement structure damage are analyzed, and repairs are considered, the asphalt pavement damage detection device is used to detect pavement cracks and mark them, and the cracks are repaired.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An asphalt pavement damage detection device, characterized in that: The invention comprises a box (1), a baffle (2) and a detection block (5), wherein the box (1) is slidably connected to a road surface, the box (1) is provided with a receiving cavity (11), the baffle (2) is connected to the inner wall of the receiving cavity (11), the baffle (2) divides the receiving cavity (11) into a dye cavity (111) and an installation cavity (112), the dye cavity (111) is used to place a dye, a mounting opening (16) is provided at the lower end of the box (1), the mounting opening (16) is connected to the installation cavity (112), and the The detection block (5) is slidably connected to the baffle (2); one end of the detection block (5) is arranged in the installation cavity (112); the other end of the detection block (5) penetrates the installation opening (16) and is used to extend into the crack; the detection block (5) is provided with a passage opening (53); the passage opening (53) penetrates the detection block (5); one end of the passage opening (53) opens toward the road surface; the baffle (2) is provided with a discharge opening (21); the discharge opening (21) is used to connect the dye cavity (111) and the passage opening (53); The detection block (5) comprises a fixed block (51) and a guide block (52); the guide block (52) comprises a connecting block (521) and an abutting block (522); the fixed block (51) is set as a rectangular parallelepiped; the fixed block (51) is embedded in the mounting cavity (112); the length of the fixed block (51) is equal to the length of the mounting cavity (112); the width of the fixed block (51) is equal to the width of the mounting cavity (112); a mounting opening (16) is provided at the lower end of the box body (1); the mounting opening (16) is connected to the mounting cavity (112); the length of the fixed block (51) is greater than the inner diameter of the mounting opening (16); The upper end of the block (521) is fixedly connected to the lower end of the fixed block (51), the connecting block (521) is set as a cylinder, the outer periphery of the connecting block (521) is slidably connected to the inner wall of the installation opening (16), the sliding direction of the connecting block (521) is vertical, the abutment block (522) is set as a cone, the upper end of the abutment block (522) is coaxially fixedly connected to the lower end of the connecting block (521), the outer diameter of the abutment block (522) increases with the increase of height, the maximum outer diameter of the abutment block (522) is equal to the outer diameter of the connecting block (521), and the lower end of the abutment block (522) is used to extend into the crack of the road surface; The detection block (5) is provided with a channel opening (53), the channel opening (53) comprising a first material discharge channel (531) and a second material discharge channel (532), the first material discharge channel (531) being provided in the fixing block (51), the second material discharge channel (532) being provided in the connecting block (521), one end of the first material discharge channel (531) being used for communicating with the discharge opening (21), the other end of the first material discharge channel (531) being connected with one end of the second material discharge channel (532), and the other end of the second material discharge channel (532) being opened toward the road surface.

2. The asphalt pavement damage detection device according to claim 1, characterized in that: The height of the passage opening (53) decreases as it moves away from the baffle (2).

3. The asphalt pavement damage detection device according to claim 1, characterized in that: It also includes a spring (6), one end of the spring (6) being connected to the inner wall of the installation cavity (112) facing the installation opening (16), and the other end of the spring (6) being connected to the upper end of the detection block (5).

4. The asphalt pavement damage detection device according to claim 1, characterized in that: The upper end of the box body (1) is provided with a feed inlet (14), and the feed inlet (14) is connected to the dye chamber (111).

5. The asphalt pavement damage detection device according to claim 1, characterized in that: It also includes a sealing ring (7), and an annular groove (22) is provided at one end of the baffle plate (2) facing the installation cavity (112). The annular groove (22) is coaxially arranged with the discharge port (21), and the inner diameter of the annular groove (22) is larger than the inner diameter of the discharge port (21). The sealing ring (7) is embedded in the annular groove (22).

6. The asphalt pavement damage detection device according to claim 1, characterized in that: The lower end of the box body (1) is connected to a roller (3).

7. The asphalt pavement damage detection device according to claim 1, characterized in that: The outer wall of the box body (1) is connected with a connecting ring (15), and the connecting ring (15) is used for rope traction.

8. An asphalt pavement damage detection process, comprising an asphalt pavement damage detection device according to any one of claims 1 to 7, characterized in that: The following steps are involved: Clear obstacles from the road; Detect road surface smoothness; Detect and mark cracks in the road surface.

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