Road maintenance ground permeability detection method

Abstract

The invention relates to the technical field of road maintenance, in particular to a road maintenance ground permeability detection method which comprises the following steps: step 1, formulating a detection sequence according to a maintenance sequence of roads in an area under administration; step 2, performing field investigation on a road to be detected on site, randomly selecting sampling points, and setting marks on the sampling points; 3, a constructor adopts a hole taking device to take holes in the mark points so as to collect the highway specimens, and a steel plate is used for covering holes formed in the highway after collection; step 4, performing permeability detection on the collected highway specimen by using a detection device; 5, after permeability detection is completed, the highway specimen is backfilled to the original position, the space between the specimen and the hole in the original highway is filled with asphalt of the same specification and model, the accuracy of the detection result is improved, and meanwhile the operation difficulty of the detection device is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of road maintenance, in particular to a method for detecting ground permeability in highway maintenance. Background Art

[0002] The purpose of ground permeability testing for highway maintenance is to prevent the road surface from causing difficult-to-find cracks due to car rolling and the influence of the natural environment. When there are many cracked areas inside the ground, it will seriously endanger the safety of car driving and is very dangerous. Therefore, in order to ensure the maintenance of the highway surface, the staff generally use relevant detection equipment to test its permeability.

[0003] In actual use, when conducting road surface permeability testing, relevant testing vehicles are usually used for testing through pressure testing. At this time, staff are required to continuously drive the testing vehicle to continuously test the road surface. During the testing, vehicles need to be prohibited from driving on the road surface, which will cause inconvenience in driving vehicles and cause road congestion. In addition, the testing vehicle will consume a lot of oil when driving, which greatly reduces the testing efficiency. Therefore, a road maintenance ground permeability testing device is proposed, which adopts a sampling detection method to greatly improve the testing efficiency. In this regard, the Chinese patent: A road maintenance ground permeability testing device (application publication number: CN116908072A) discloses structures such as an installation bin, a shielding component, an extrusion component, a clamping component, and a fixing component. Improve the efficiency of permeability testing of ground stones.

[0004] However, the above application also has certain drawbacks when used, mainly in that the placement of ground stones requires manual positioning, and other operations are required after positioning, that is, there is a clear sequence of steps when used, which makes the operation difficult during use, and operational errors may cause inaccurate detection results. Summary of the invention

[0005] The purpose of the present invention is to provide a method for detecting the permeability of road maintenance ground to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A method for detecting the permeability of road maintenance ground, comprising the following steps: Step 1: Establish the inspection sequence according to the maintenance sequence of the roads within the jurisdiction; Step 2: Conduct a field survey of the highway to be tested, randomly select sampling points, and set markers on the sampling points; Step 3: Construction workers use a hole-taking device to take holes at the marked points to collect road samples, and after collection, use steel plates to cover the holes on the road; Step 4: Use the detection device to perform permeability detection on the collected highway samples; Step 5: After completing the permeability test, the highway specimen should be backfilled to its original position, and the holes between the specimen and the original highway should be filled with asphalt of the same specifications and types.

[0007] As a further solution of the present invention: the detection device comprises: A workbench, wherein two groups of arc-shaped clamping members are arranged on the workbench, and the arc-shaped clamping members can clamp the highway specimen; A sealing connection cover is arranged on the workbench, and a sealing gasket is arranged on the side of the sealing connection cover facing the highway specimen; A driving assembly is arranged on the workbench, the driving assembly comprises a bidirectional driving structure and a lifting structure, the bidirectional driving structure is connected to the arc-shaped clamping member, the lifting structure is connected to the sealing connection cover, and when the bidirectional driving structure is actuated, the arc-shaped clamping member and the sealing connection cover will be actuated in sequence; The pressure-applying component is connected to the sealing connection cover and the lifting component. After the sealing connection cover is in sealing contact with the road specimen, the pressure-applying component can pump the developer into the sealing connection cover.

[0008] As a further solution of the present invention: a No. 1 slide groove is provided on the workbench, the bidirectional driving structure comprises a No. 1 slider slidably connected to the No. 1 slide groove, the No. 1 slider is connected to the arc-shaped clamping member through a buffer kit, and a No. 1 convex shaft is provided at one end of the No. 1 slider away from the arc-shaped clamping member; The bidirectional driving structure also includes two guide members detachably installed on the workbench, a transverse plate is slidably installed between the two guide members, the transverse plate is connected to the linear driving module arranged on the workbench, and driving grooves are symmetrically arranged on the transverse plate, and the No. 1 cam can slide in the driving groove.

[0009] As a further solution of the present invention: the driving groove includes an inclined groove and a transverse groove arranged on the transverse plate, the inclined groove is connected to the transverse groove, and when the No. 1 cam slides in the inclined groove, the two groups of arc-shaped clamping members will move closer to each other.

[0010] As a further solution of the present invention: the buffer kit includes a support shaft fixedly connected to the first slider and a connecting sleeve fixedly connected to the arc-shaped clamping member, and the connecting sleeve is slidably connected to the support shaft; A No. 1 spring is arranged in the connecting sleeve, one end of the No. 1 spring is connected to the inner wall of the connecting sleeve, and the other end is connected to the supporting shaft; The workbench is also provided with a No. 2 slide groove, in which a No. 2 slider is slidably installed, and two connecting rods are rotatably installed on the No. 2 slider, and one end of the connecting rod away from the No. 2 slider is rotatably connected to the arc clamping piece.

[0011] As a further solution of the present invention: the lifting structure comprises a guide sleeve fixedly mounted on the workbench, the interior of the guide sleeve is a hollow structure, and a lifting plate is slidably mounted in the guide sleeve, and one end of the lifting plate away from the guide sleeve is connected to the pressure assembly; A gear is rotatably mounted on the guide sleeve plate, and the gear is adapted to the rack plate connected to the transverse plate; The lifting structure also includes a spiral set connecting the guide sleeve and the lifting plate, the spiral set is connected to a bevel gear set arranged on the guide sleeve, and the bevel gear set is connected to the rotating shaft of the gear through a transmission belt.

[0012] As a further solution of the present invention: the spiral set comprises a rotating shaft rotatably mounted on the guide sleeve plate and connected to the bevel gear set, and a lifting sleeve fixedly connected to the lifting plate, wherein a second cam is provided on the rotating shaft, and the second cam is adapted to an engaging groove formed in the lifting sleeve; The engaging groove comprises a spiral groove arranged on the inner wall of the lifting sleeve, and an arc groove is extended from each end of the spiral groove.

[0013] As a further solution of the present invention: the pressure-applying assembly comprises a connecting plate fixedly connected to the lifting plate, and the connecting plate is provided with a sealing plug; The pressure-applying assembly further comprises a compression cylinder connected to the connecting plate via an energy storage structure, the compression cylinder is sealingly and slidably connected to the sealing plug, and the compression cylinder is connected to the sealing connection cover via a connecting pipe.

[0014] As a further solution of the present invention: the energy storage structure includes a No. 3 slide groove arranged on the connecting plate, and a connecting frame fixedly connected to the compression cylinder body is slidably installed in the No. 3 slide groove; A vertical shaft slidably connected to the connecting frame is arranged in the No. 3 slide groove, and a No. 2 spring is sleeved on the vertical shaft. One end of the No. 2 spring is connected to the end of the No. 3 slide groove, and the other end is connected to the connecting frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects: When the specimen is fixed, the specimen can be clamped by the elastic force provided by the No. 1 spring. This non-rigid clamping can prevent the specimen from being broken by pressure. At the same time, the two arc-shaped clamping parts can move synchronously when moving, and have a positioning effect on the specimen. After the positioning is completed, the specimen can be coaxial with the sealing connection cover, and then during the penetration test, the developer can penetrate more evenly in the specimen. The arc-shaped clamping member and the sealing connection cover can be operated sequentially, so that the specimen is clamped first, and then the sealing connection cover forms a sealing connection relationship with the upper surface of the specimen. The two actions are completed sequentially when the transverse plate moves, which can reduce the operating difficulty of the device and the amount of preparation work before detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a flow chart of an embodiment of a method for detecting ground permeability during highway maintenance.

[0017] Figure 2 The present invention is a schematic diagram of the structure of a detection device in one embodiment of a method for detecting ground permeability during highway maintenance.

[0018] Figure 3 This is a schematic structural diagram of another angle of a detection device in one embodiment of a method for detecting ground permeability for highway maintenance.

[0019] Figure 4 This is a schematic structural diagram of a detection device from another angle in one embodiment of a method for detecting ground permeability during highway maintenance.

[0020] Figure 5 An exploded view of a portion of a driving component in one embodiment of a method for detecting ground permeability during highway maintenance.

[0021] Figure 6 An exploded view of a buffer kit in one embodiment of a method for detecting ground permeability for highway maintenance.

[0022] Figure 7 The present invention is a structural schematic diagram of a lifting structure in one embodiment of a method for detecting ground permeability for highway maintenance.

[0023] Figure 8 The present invention is a schematic structural diagram of a spiral kit in one embodiment of a method for detecting ground permeability for highway maintenance.

[0024] Fig. 9 An exploded view of a pressure-applying assembly in one embodiment of a method for detecting ground permeability for highway maintenance.

[0025] In the figure: 1, workbench; 101, slideway No. 1; 102, slideway No. 2; 2, linear drive module; 3, transverse plate; 301, inclined slot; 302, transverse slot; 4, rack plate; 5, guide; 6, slider No. 1; 7, cam No. 1; 8, support shaft; 9, spring No. 1; 10, connecting sleeve; 11, arc clamping member; 12, connecting rod; 13, slider No. 2; 14, gear; 15, Transmission belt; 16. Guide sleeve; 17. Lifting plate; 18. Bevel gear set; 19. Rotating shaft; 1901. No. 2 cam shaft; 20. Lifting sleeve; 2001. Arc groove; 2002. Spiral groove; 21. Connecting plate; 2101. No. 3 slide groove; 22. Sealing plug; 23. Compression cylinder; 24. Connecting frame; 25. Vertical shaft; 26. No. 2 spring; 27. Sealing connecting cover; 28. Connecting pipe. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0028] See also Figure 1 to Figure 9 In an embodiment of the present invention, a method for detecting the permeability of a road maintenance ground comprises the following steps: Step 1: Establish the inspection sequence according to the maintenance sequence of the roads within the jurisdiction; Step 2: Conduct a field survey of the highway to be tested, randomly select sampling points, and set markers on the sampling points; Step 3: Construction workers use a hole-taking device to take holes at the marked points to collect road samples, and after collection, use steel plates to cover the holes on the road; Step 4: Use the detection device to perform permeability detection on the collected highway samples; Step 5: After completing the permeability test, the highway specimen should be backfilled to its original position, and the holes between the specimen and the original highway should be filled with asphalt of the same specifications and types.

[0029] See also Figure 2~Figure 9 The detection device includes: a workbench 1, a sealing connection cover 27, a driving component and a pressure component, so that the arc clamping member 11 and the sealing connection cover 27 can be performed in sequence, so as to first clamp the specimen, and then form a sealing connection relationship between the sealing connection cover 27 and the upper surface of the specimen. When the transverse plate 3 moves, the two actions are completed in sequence, which can reduce the operating difficulty of the device and the amount of preparation work before detection.

[0030] Specifically, two groups of arc-shaped clamping members 11 are arranged on the workbench 1, and the arc-shaped clamping members 11 can clamp the highway specimen. The sealing connection cover 27 is arranged on the workbench 1, and a sealing gasket is arranged on the side of the sealing connection cover 27 facing the highway specimen. The driving assembly is arranged on the workbench 1, and the driving assembly includes a bidirectional driving structure and a lifting structure. The bidirectional driving structure is connected to the arc-shaped clamping member 11, and the lifting structure is connected to the sealing connection cover 27. When the bidirectional driving structure is actuated, the arc-shaped clamping member 11 and the sealing connection cover 27 will be actuated in sequence. The workbench 1 is provided with a No. 1 slide groove 101, the bidirectional driving structure comprises a No. 1 slider 6 slidably connected to the No. 1 slide groove 101, the No. 1 slider 6 is connected to the arc-shaped clamping member 11 through a buffer kit, and a No. 1 convex shaft 7 is provided at one end of the No. 1 slider 6 away from the arc-shaped clamping member 11; The bidirectional driving structure also includes two guide members 5 detachably mounted on the workbench 1, a transverse plate 3 is slidably mounted between the two guide members 5, the transverse plate 3 is connected to the linear driving module 2 arranged on the workbench 1, and the transverse plate 3 is symmetrically provided with driving grooves, the first cam shaft 7 can slide in the driving grooves, the driving grooves include an inclined groove 301 and a transverse groove 302 arranged on the transverse plate 3, the inclined groove 301 is connected with the transverse groove 302, when the first cam shaft 7 slides in the inclined groove 301, the two groups of arc-shaped clamping members 11 will move closer to each other; The buffer kit includes a support shaft 8 fixedly connected to the first slider 6 and a connecting sleeve 10 fixedly connected to the arc-shaped clamping member 11, and the connecting sleeve 10 is slidably connected to the support shaft 8; A No. 1 spring 9 is disposed in the connecting sleeve 10, one end of the No. 1 spring 9 is connected to the inner wall of the connecting sleeve 10, and the other end is connected to the supporting shaft 8; The workbench 1 is also provided with a No. 2 slide groove 102, in which a No. 2 slider 13 is slidably installed. Two connecting rods 12 are rotatably installed on the No. 2 slider 13, and one end of the connecting rod 12 away from the No. 2 slider 13 is rotatably connected to the arc clamping member 11.

[0031] When in use, the collected highway specimen is placed on the workbench 1, and the specimen is located between the two arc-shaped clamping members 11. Then, the linear drive module is controlled to move to drive the transverse plate 3 to move. In the initial state, the No. 1 cam 7 is located at the end of the inclined groove 301 away from the transverse groove 302, so that when the transverse plate 3 moves, the No. 1 cam 7 will move along the inclined groove 301, and the two No. 1 sliders 6 can move closer to each other and drive the two groups of arc-shaped clamping members 11 to move toward the specimen, until the arc-shaped clamping member 11 abuts against the specimen, and the No. 1 cam 7 will continue to move along the inclined groove 301. At this time, the arc-shaped clamping member 11 abuts against the specimen and cannot continue to move. At this time, the support shaft 8 will continue to move toward the specimen, and the No. 1 spring 8 can be compressed. The specimen is clamped by the elastic force provided by the No. 1 spring 8, thereby avoiding displacement of the specimen during the detection process and improving the stability during the detection.

[0032] When the two arc-shaped clamping members 11 are close to each other, the two arc-shaped clamping members 11 can push the second slider 13 to move through the two connecting rods 12, so that the two arc-shaped clamping members 11 can move synchronously. In the process of clamping the specimen, the specimen can be positioned to ensure that the sealing connection cover 27 can be coaxial with the specimen, thereby improving the uniformity of the developer penetration during penetration testing.

[0033] Through the above arrangement, when the specimen is fixed, the specimen can be clamped by the elastic force provided by the No. 1 spring 8. This non-rigid clamping can prevent the specimen from being compressed and broken. At the same time, the two arc-shaped clamping members 11 can move synchronously during movement, and have a positioning effect on the specimen. After the positioning is completed, the specimen can be coaxial with the sealing connection cover 27, and then during the penetration test, the developer can penetrate more evenly into the specimen.

[0034] See also Figure 3 , Figure 7 , Figure 8 The lifting structure includes a guide sleeve 16 fixedly mounted on the workbench 1, the interior of the guide sleeve 16 is a hollow structure, and a lifting plate 17 is slidably mounted in the guide sleeve 16, and one end of the lifting plate 17 away from the guide sleeve 16 is connected to the pressure assembly; A gear 14 is rotatably mounted on the guide sleeve plate 16, and the gear 14 is adapted to the rack plate 4 connected to the transverse plate 3; The lifting structure further includes a spiral set connecting the guide sleeve 16 and the lifting plate 17, the spiral set connecting the bevel gear set 18 disposed on the guide sleeve 16, and the bevel gear set 18 connecting the rotating shaft of the gear 14 through the transmission belt 15; The spiral set comprises a rotating shaft 19 rotatably mounted on the guide sleeve 16 and connected to the bevel gear set 18, and a lifting sleeve 20 fixedly connected to the lifting plate 17, wherein a second cam 1901 is provided on the rotating shaft 19, and the second cam 1901 is adapted to a fitting groove formed in the lifting sleeve 20; The engaging groove comprises a spiral groove 2002 arranged on the inner wall of the lifting sleeve 20 , and an arc groove 2001 extends from each end of the spiral groove 2002 .

[0035] When the No. 1 cam 7 slides in the inclined groove 301, the rack plate 4 and the gear 14 are in a separated state. When the No. 1 cam 7 moves into the transverse groove 302, the position of the support shaft 8 will be constant, so that the arc clamping member 11 fixes the specimen with a constant force. Moreover, since the direction of the transverse groove 302 is perpendicular to the direction of the support shaft 8, when the No. 1 cam 7 moves into the transverse groove 302, the transverse plate 3 will not be affected by the reaction force and retreat, thereby reducing the output load of the linear drive module.

[0036] When the No. 1 cam 7 slides in the transverse groove 302, the rack plate 4 will mesh with the gear 14, and the gear 14 will rotate at this time, and drive the rotating shaft 19 to rotate through the transmission belt 15 and the bevel gear set 18, so as to drive the No. 2 cam 1901 to make a circular motion, wherein, in the initial state, the No. 2 cam 1901 is in the lower arc groove 2001, and the movement direction of the lifting plate 17 is perpendicular to the direction of the arc groove 2001, so that the lifting plate 17 can maintain the stability of the high point of the stroke, and when the No. 2 cam 1901 makes a circular motion, it can move along the arc groove 2001 to the spiral groove 2002, and when the No. 2 cam 1901 moves in the spiral groove 2002, the lifting sleeve 20 will move downward, and drive the lifting plate 17 to move downward, so as to drive the sealing connection cover 27 to move downward, and then after the sealing connection cover 27 is attached to the specimen, the sealing connection cover 27 and the upper surface of the specimen can form a sealed connection relationship.

[0037] Through the above-mentioned arrangement, the actions of the arc-shaped clamping member 11 and the sealing connection cover 27 can be performed in sequence, so that the specimen is first clamped and then the sealing connection cover 27 forms a sealing connection relationship with the upper surface of the specimen. The two actions are completed in sequence when the transverse plate 3 moves, which can reduce the operating difficulty of the device and the amount of preparation work before detection.

[0038] See also Figure 4 , Figure 7 , Fig. 9 The pressure-applying assembly is connected to the sealing connection cover 27 and the lifting assembly. After the sealing connection cover 27 is in sealing contact with the road specimen, the pressure-applying assembly can pump the developer into the sealing connection cover 27; The pressure assembly includes a connecting plate 21 fixedly connected to the lifting plate 17, and the connecting plate 21 is provided with a sealing plug 22; The pressure assembly further includes a compression cylinder 23 connected to the connecting plate 21 through an energy storage structure, the compression cylinder 23 is sealingly and slidably connected to the sealing plug 22, and the compression cylinder 23 is connected to the sealing connection cover 27 through a connecting pipe 28; The energy storage structure includes a No. 3 slide groove 2101 arranged on the connecting plate 21, and a connecting frame 24 fixedly connected to the compression cylinder 23 is slidably installed in the No. 3 slide groove 2101; A vertical shaft 25 slidably connected to the connecting frame 24 is provided in the No. 3 slide groove 2101, and a No. 2 spring 26 is sleeved on the vertical shaft 25. One end of the No. 2 spring 26 is connected to the end of the No. 3 slide groove 2101, and the other end is connected to the connecting frame 24.

[0039] After the sealing connection cover 27 forms a sealing connection relationship with the upper surface of the specimen, the lifting plate 17 will continue to move downward. At this time, the sealing connection cover 27 cannot continue to move because it has abutted against the upper surface of the specimen. When the lifting plate 17 moves downward, it can drive the sealing plug 22 to move in the compression cylinder 23 to compress the developer in the compression cylinder 23 and inject it into the sealing connection cover 27 through the connecting pipe 28, so as to accelerate the penetration speed of the developer in the specimen by increasing the pressure.

[0040] Furthermore, in the initial state, the contact force between the sealing connection cover 27 and the upper surface of the specimen is relatively small, and the pressure inside the sealing connection cover 27 is also relatively small. As the lifting plate 17 moves downward, the contact force between the sealing connection cover 27 and the upper surface of the specimen will increase, and at the same time, the pressure inside the sealing connection cover 27 will also increase, so that the contact force and pressure can be matched to prevent the developer from overflowing from the contact point between the two.

[0041] Through the above arrangement, the developer can be squeezed and delivered under pressure, thereby increasing the penetration speed of the developer in the specimen and greatly shortening the detection time.

[0042] Furthermore, after the penetration test has been carried out for a predetermined period of time, the specimen needs to be scanned using an X-ray machine to observe the penetration conditions within the sample.

[0043] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0044] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A method for detecting the permeability of road maintenance ground, characterized in that: The following steps are involved: Step 1: Establish the inspection sequence according to the maintenance sequence of the roads within the jurisdiction; Step 2: Conduct a field survey of the highway to be tested, randomly select sampling points, and set markers on the sampling points; Step 3: Construction workers use a hole-taking device to take holes at the marked points to collect road samples, and after collection, use steel plates to cover the holes on the road; Step 4: Use the detection device to perform permeability detection on the collected highway samples; Step 5: After completing the permeability test, the highway specimen should be backfilled to its original position, and the holes between the specimen and the original highway should be filled with asphalt of the same specifications and types.

2. A method for detecting the permeability of road maintenance ground according to claim 1, characterized in that: The detection device comprises: A workbench (1), wherein two groups of arc-shaped clamping members (11) are arranged on the workbench (1), and the arc-shaped clamping members (11) are capable of clamping a highway specimen; A sealing connection cover (27) is arranged on the workbench (1), and a sealing gasket is arranged on the side of the sealing connection cover (27) facing the highway specimen.

3. A method for detecting the permeability of road maintenance ground according to claim 2, characterized in that: The detection device also includes: a driving assembly, arranged on the workbench (1), the driving assembly comprising a bidirectional driving structure and a lifting structure, the bidirectional driving structure being connected to the arc-shaped clamping member (11), the lifting structure being connected to the sealing connection cover (27), and when the bidirectional driving structure is actuated, the arc-shaped clamping member (11) and the sealing connection cover (27) will be actuated in sequence; A pressure-applying component is connected to the sealing connection cover (27) and the lifting component. After the sealing connection cover (27) is in sealing contact with the road specimen, the pressure-applying component can pump the developer into the sealing connection cover (27).

4. A method for detecting the permeability of road maintenance ground according to claim 3, characterized in that: The workbench (1) is provided with a No. 1 slide groove (101), the bidirectional driving structure comprises a No. 1 slider (6) slidably connected to the No. 1 slide groove (101), the No. 1 slider (6) is connected to the arc-shaped clamping member (11) via a buffer kit, and a No. 1 convex shaft (7) is provided at one end of the No. 1 slider (6) away from the arc-shaped clamping member (11); The bidirectional driving structure further comprises two guide members (5) detachably mounted on the workbench (1), a transverse plate (3) being slidably mounted between the two guide members (5), the transverse plate (3) being connected to a linear driving module (2) arranged on the workbench (1), and drive grooves being symmetrically arranged on the transverse plate (3), and the first cam shaft (7) being able to slide in the drive grooves; The driving groove comprises an inclined groove (301) and a transverse groove (302) provided on the transverse moving plate (3), the inclined groove (301) being connected to the transverse groove (302), and when the first convex shaft (7) slides in the inclined groove (301), the two groups of arc-shaped clamping members (11) will move towards each other; The buffer kit comprises a support shaft (8) fixedly connected to the first slider (6) and a connecting sleeve (10) fixedly connected to the arc-shaped clamping member (11), wherein the connecting sleeve (10) is slidably connected to the support shaft (8); A No. 1 spring (9) is disposed in the connecting sleeve (10), one end of the No. 1 spring (9) is connected to the inner wall of the connecting sleeve (10), and the other end is connected to the supporting shaft (8); The workbench (1) is also provided with a No. 2 slide groove (102), in which a No. 2 slider (13) is slidably mounted, and two connecting rods (12) are rotatably mounted on the No. 2 slider (13), and one end of the connecting rod (12) away from the No. 2 slider (13) is rotatably connected to the arc-shaped clamping member (11); The lifting structure comprises a guide sleeve (16) fixedly mounted on the workbench (1), the interior of the guide sleeve (16) being a hollow structure, and a lifting plate (17) being slidably mounted inside the guide sleeve (16), and an end of the lifting plate (17) away from the guide sleeve (16) being connected to the pressure assembly; A gear (14) is rotatably mounted on the guide sleeve plate (16), and the gear (14) is adapted to fit the rack plate (4) connected to the transverse plate (3); The lifting structure further comprises a spiral set connecting the guide sleeve (16) and the lifting plate (17), the spiral set connecting a bevel gear set (18) arranged on the guide sleeve (16), and the bevel gear set (18) is connected to the rotating shaft of the gear (14) via a transmission belt (15).

5. A method for detecting the permeability of road maintenance ground according to claim 4, characterized in that: The spiral set comprises a rotating shaft (19) rotatably mounted on the guide sleeve plate (16) and connected to the bevel gear set (18), and a lifting sleeve (20) fixedly connected to the lifting plate (17).

6. A method for detecting the permeability of road maintenance ground according to claim 5, characterized in that: A second cam shaft (1901) is provided on the rotating shaft (19), and the second cam shaft (1901) is adapted to fit into an engaging groove formed in the lifting sleeve (20).

7. A method for detecting the permeability of road maintenance ground according to claim 6, characterized in that: The engaging groove comprises a spiral groove (2002) arranged on the inner wall of the lifting sleeve (20), and an arc groove (2001) is extended from each end of the spiral groove (2002).

8. A method for detecting the permeability of road maintenance ground according to claim 5, characterized in that: The pressure-applying assembly comprises a connecting plate (21) fixedly connected to the lifting plate (17), the connecting plate (21) being provided with a sealing plug (22); The pressure-applying assembly further comprises a compression cylinder (23) connected to the connecting plate (21) via an energy storage structure, the compression cylinder (23) being sealingly slidably connected to the sealing plug (22), and the compression cylinder (23) being connected to the sealing connection cover (27) via a connecting pipe (28).

9. A method for detecting the permeability of road maintenance ground according to claim 8, characterized in that: The energy storage structure comprises a No. 3 slide groove (2101) arranged on the connecting plate (21), and a connecting frame (24) fixedly connected to the compression cylinder body (23) is slidably mounted in the No. 3 slide groove (2101); A vertical shaft (25) slidably connected to the connecting frame (24) is arranged in the No. 3 slide groove (2101), and a No. 2 spring (26) is sleeved on the vertical shaft (25), one end of the No. 2 spring (26) is connected to the end of the No. 3 slide groove (2101), and the other end is connected to the connecting frame (24).

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