Water stable base crack treatment structure and method

Abstract

The application discloses a water-stable base layer crack processing structure and a method thereof, and belongs to the field of water-stable base layer crack processing. The water-stable base layer crack processing structure comprises a geotextile for being laid on a crack and a steel nail for fixing the geotextile to a water-stable base layer. A mounting plate is detachably arranged above the geotextile. A needle cylinder for pouring modified emulsified asphalt into the crack is slidably arranged on the mounting plate. The needle cylinder comprises a cylinder body slidably arranged on the mounting plate and a piston push rod slidably arranged in the cylinder body. The cylinder body is used for storing the modified emulsified asphalt. The piston push rod is used for pushing the modified emulsified asphalt out of the cylinder body. The sliding direction of the piston push rod is parallel to the sliding direction of the cylinder body. A connecting assembly is arranged on the piston push rod and used for driving the piston push rod to move towards the water-stable base layer when the steel nail is screwed into the water-stable base layer. The application has the advantages of accelerating the processing time and improving the work efficiency.

Description

Technical Field

[0001] This invention relates to the field of water-stabilized base course crack treatment technology, and in particular to a structure and method for treating water-stabilized base course cracks. Background Technology

[0002] Water-stabilized base course refers to cement-stabilized base course, which can generally be divided into water-stabilized crushed stone base course and water-stabilized sand and gravel base course, and is the foundation of highways. Water-stabilized base course is prone to cracking in the early stages due to drying shrinkage or thermal shrinkage, and cracks need to be treated in a timely manner to ensure the strength of the water-stabilized base course.

[0003] In related technologies, the methods for treating cracks in water-stabilized base courses mainly include the following steps: Step 1: Clean the cracks; Step 2: Inject modified emulsified asphalt into cracks 5 mm or less; Step 3: Lay the geotextile over the crack using steel nails.

[0004] Regarding the aforementioned technologies, during construction, modified emulsified asphalt needs to be injected into the cracks first, then geotextile is laid on the cracks, and then steel nails are driven into the water-stabilized base to fix the geotextile. This process is time-consuming and inefficient. Summary of the Invention

[0005] Therefore, in order to help speed up the processing time and improve work efficiency, this application provides a structure and method for treating cracks in water-stabilized base courses.

[0006] This invention is implemented as follows: a structure for treating cracks in a water-stabilized base course is constructed using the following technical solution: It includes geotextile for laying on the crack and steel nails for fixing the geotextile to the water-stabilized base course. An mounting plate is detachably mounted on the top of the geotextile. A syringe for injecting modified emulsified asphalt into the crack is slidably mounted on the mounting plate. The syringe includes a cylinder slidably mounted on the mounting plate and a piston rod slidably mounted inside the cylinder. The cylinder stores the modified emulsified asphalt, and the piston rod pushes the modified emulsified asphalt out of the cylinder. The sliding direction of the cylinder is perpendicular to the plane of the geotextile, and the sliding direction of the piston rod is parallel to the sliding direction of the cylinder. A connecting component is provided on the piston rod to drive the piston rod towards the water-stabilized base course when the steel nails are rotated into it.

[0007] By adopting the above technical solution, geotextile is laid on the crack, the needle of the cylinder is aligned with the crack, and then the cylinder is slid towards the water-stabilized base layer, so that the needle of the cylinder passes through the geotextile and extends into the crack. Then, steel nails are screwed into the water-stabilized base layer. At this time, the piston push rod is driven by the connecting component to slide towards the water-stabilized base layer, so that the piston push rod pushes the modified latex asphalt in the cylinder into the crack. Thus, the crack filling and geotextile installation are realized at the same time, which saves processing time to a certain extent and helps to improve processing efficiency.

[0008] Preferably, the connecting assembly includes a connecting rod disposed on the piston push rod and a kit disposed on the connecting rod, the kit being used to detach from or be movably fitted onto the steel nail, and the connecting rod being connected to the steel nail via the kit.

[0009] By adopting the above technical solution, the kit is movably fitted onto the steel nail. As the steel nail rotates towards the water-stabilized base layer, the connecting rod drives the piston push rod to slide towards the water-stabilized base layer. This helps to push the modified emulsified asphalt inside the cylinder into the crack and fill the crack. As a result, the crack filling work can be carried out at the same time as the geotextile is installed, which saves processing time to a certain extent and helps to improve processing efficiency.

[0010] Preferably, the kit includes two semicircular rings hinged to a connecting rod. Each semicircular ring has a hinged end and a free end. The hinged end of the semicircular ring is hinged to the connecting rod, and the free ends of the two semicircular rings are used to abut against each other. The steel nail is located between the two semicircular rings. A flexible arc-shaped block is provided on the free end of one semicircular ring, and a locking hole is provided on the free end of the other semicircular ring for the arc-shaped block to pass through. When the arc-shaped block passes through the locking hole, the inner diameter of the ring formed by the two semicircular rings is smaller than the diameter of the head of the steel nail.

[0011] By adopting the above technical solution, rotating the two semicircular rings in opposite directions helps to separate the connecting rod from the steel nail. The steel nail is placed between the two semicircular rings, and then the two semicircular rings are rotated in opposite directions, allowing the arc-shaped block to pass through the locking hole. At this point, the head of the steel nail is above the two semicircular rings, which helps to guide the steel nail. As the steel nail rotates towards the base layer, it helps to move the piston rod downwards via the connecting rod, facilitating the pushing of the modified emulsified asphalt inside the cylinder into the crack. This saves processing time and improves processing efficiency to a certain extent.

[0012] Preferably, a sliding block is slidably disposed on the mounting plate, the sliding direction of the sliding block is perpendicular to the sliding direction of the cylinder, the cylinder is slidably disposed on the sliding block, and the piston push rod is slidably connected to the connecting rod.

[0013] By adopting the above technical solution, the sliding block drives the cylinder to slide, which helps to adjust the position of the cylinder according to the actual location of the crack, thus expanding the scope of application to a certain extent; at the same time, it facilitates the reuse of the mounting plate and saves resources.

[0014] Preferably, a magnet is slidably passed through the sliding block, the sliding direction of the magnet is parallel to the sliding direction of the cylinder, and an iron sheet is provided on the mounting plate to be attracted and cooperate with the magnet, the length direction of the iron sheet is parallel to the sliding direction of the sliding block.

[0015] By adopting the above technical solution, the magnet is slid away from the mounting plate, so that the magnet is separated from the iron plate, which makes it easier to adjust the position of the cylinder by sliding the sliding block; when the magnet is released, it slides closer to the iron plate under gravity, so that the magnet and the iron plate are attracted and engaged, which makes it easier to fix the sliding block relative to the mounting plate, so that the sliding block is less likely to slide unnecessarily during the grouting process.

[0016] Preferably, a tension spring is fitted on the cylinder body, the tension spring being used to pull the cylinder body to slide towards the geotextile, one end of the tension spring being disposed on the sliding block and the other end being disposed on the cylinder body, and the sliding block being provided with a limiting member for restricting the cylinder body from sliding towards the geotextile.

[0017] By adopting the above technical solution, the cylinder is pulled by a tension spring to slide towards the geotextile, which helps the needle on the cylinder to penetrate the geotextile and enter the crack, thus saving manpower to a certain extent.

[0018] Preferably, the limiting component includes a retaining ring movably mounted on the outside of the cylinder and a limiting block mounted on the cylinder. The retaining ring has a notch for the cylinder to move out or in. One side of the retaining ring is used to abut against the sliding block, and the other side is used to abut against the side of the limiting block near the geotextile. When the retaining ring abuts against the side of the limiting block near the geotextile, the tension spring is in a stretched state, and the needle of the cylinder is located above the geotextile.

[0019] By adopting the above technical solution, the retaining ring is attached to the outside of the cylinder, with one side of the retaining ring abutting against the sliding block and the other side abutting against the side of the limiting block near the geotextile. At this time, the needle of the cylinder is located above the geotextile, which facilitates the sliding block to move the cylinder to the required position. When the retaining ring is removed from the cylinder, the tension spring pulls the cylinder to slide towards the geotextile, which helps the needle on the cylinder to penetrate the geotextile and extend into the crack, thus saving manpower to a certain extent.

[0020] Preferably, the connecting rod has two kits, each corresponding to a steel nail. A drive column is rotatably mounted on the connecting rod, with its rotation axis parallel to the sliding direction of the cylinder. Each drive column corresponds to a steel nail and is located above the corresponding steel nail. A cross-shaped groove is formed at the head of each steel nail. A cross-shaped block that engages with the cross-shaped groove is provided on the side of the drive column near the steel nail. The connecting rod is equipped with a synchronizing element for driving the two drive columns to rotate downwards synchronously.

[0021] By adopting the above technical solution, the drive columns on both sides are driven to rotate synchronously by the synchronizing component, which helps the steel nails on both sides to rotate synchronously toward the water-stabilized base layer, thus achieving simultaneous installation, further saving time and improving efficiency.

[0022] Preferably, the synchronizing element includes a transmission rod, pulleys, and a belt. The transmission rod is rotatably mounted on the connecting rod, and the rotation axis of the transmission rod is parallel to the rotation axis of the drive column. The pulleys are respectively sleeved on the transmission rod and the drive columns on both sides. The belt is wound around the three pulleys, and the three pulleys are connected by belt drive. The transmission rod has a connecting groove for engaging with an external electric drill rod.

[0023] By adopting the above technical solution, the transmission rod is rotated towards the water-stabilized base layer using external tools, and the drive columns on both sides are rotated downwards through the transmission of belts and pulleys. This allows the steel nails on both sides to rotate synchronously towards the water-stabilized base layer, which helps to further save processing time and improve efficiency.

[0024] Secondly, the method for treating cracks in a water-stabilized base course provided in this application adopts the following technical solution: using the aforementioned water-stabilized base course crack treatment structure, it further includes the following steps: Step 1: Clean the cracks; Step 2: Draw modified emulsified asphalt into the cylinder, lay the geotextile above the crack, and install the mounting plate on the geotextile; Step 3: Align the needle tip of the cylinder with the crack; Step 4: Slide the cylinder towards the geotextile so that the needle tip of the cylinder penetrates the geotextile and extends into the crack; Step 5: Then, the steel nail is screwed through the geotextile into the water-stabilized base layer. At this time, the piston rod is driven by the connecting component to slide towards the water-stabilized base layer. The piston rod pushes the modified emulsified asphalt in the cylinder to flow into the crack, thereby filling the crack.

[0025] The present invention has the following advantages: This application includes at least one of the following beneficial technical effects: 1. The geotextile is laid on the crack, the needle of the cylinder is aligned with the crack, and then the cylinder is slid towards the direction of the water-stabilized base layer, so that the needle of the cylinder passes through the geotextile and extends into the crack. Then, the steel nail is screwed into the water-stabilized base layer. At this time, the piston push rod is driven by the connecting component to slide towards the direction of the water-stabilized base layer, so that the piston push rod pushes the modified latex asphalt in the cylinder into the crack, thereby simultaneously realizing the crack filling and geotextile installation, which saves processing time to a certain extent and helps to improve processing efficiency; 2. The transmission rod is driven towards the direction of the water-stabilized base layer by an external tool, and the drive columns on both sides are driven downward by the transmission of the belt and pulley, thereby realizing the synchronous rotation of the steel nails on both sides towards the direction of the water-stabilized base layer, which helps to further save processing time and improve processing efficiency. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a partial structural cross-sectional view of an embodiment of this application; Figure 3 yes Figure 2 Enlarged view of section A; Figure 4 This is a partial exploded view of an embodiment of this application.

[0027] The components include: 1. Geotextile; 2. Steel nails; 3. Mounting plate; 4. Syringe; 41. Cylinder; 42. Piston rod; 5. Connecting rod; 51. First rod; 52. Second rod; 53. Third rod; 6. Kit; 61. Semicircular ring; 7. Arc block; 8. Locking hole; 9. Sliding block; 10. Magnet; 11. Iron sheet; 12. Tension spring; 13. Limiting component; 131. Snap ring; 132. Limiting block; 1 4. Notch; 15. Drive column; 16. Cross-shaped groove; 17. Cross-shaped block; 18. Synchronizer; 181. Transmission rod; 182. Pulley; 183. Belt; 19. Connecting groove; 20. Through hole; 21. Telescopic rod; 22. Slider; 23. Slide groove; 24. Diagonal rod; 25. Groove; 26. Support plate; 27. Abutment ear; 28. Pull rope; 29. ​​Connecting rope; 30. Mounting cavity; 31. Opening. Detailed Implementation

[0028] The following will be combined with the appendix Figures 1-4 This invention will be described in detail, and the technical solutions in the embodiments of this invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0029] This invention provides an improved structure for treating cracks in a water-stabilized base course. (See reference...) Figure 1 and Figure 2 The water-stabilized base course crack treatment structure includes geotextile 1 for laying on the crack and steel nails 2 for fixing geotextile 1 to the water-stabilized base course. In other embodiments, geotextile 1 can be replaced with geogrid, fiberglass anti-crack cloth, etc.; in other embodiments, steel nails 2 can be replaced with screws; an mounting plate 3 is detachably installed on top of geotextile 1. The cross-section of the mounting plate 3 is rectangular. In this embodiment, the mounting plate 3 is placed on top of geotextile 1. In other embodiments, the mounting plate 3 and geotextile 1 can be connected by screws to achieve detachability between the mounting plate 3 and geotextile 1; three mounting plates 3 are provided, and the three mounting plates 3 are arranged along the length of the crack. In other embodiments, the number of mounting plates 3 can be set according to the length of the crack.

[0030] Reference Figure 2 and Figure 3 A sliding block 9 is slidably disposed within the mounting plate 3. The sliding direction of the sliding block 9 is parallel to the length direction of the mounting plate 3. The longitudinal section of the sliding block 9 is I-shaped, making it difficult for the sliding block 9 to fall off the mounting plate 3. A syringe 4 for injecting modified emulsified asphalt into the crack is slidably disposed on the sliding block 9. The syringe 4 includes a cylinder 41 slidably disposed on the sliding block 9 and a piston rod 42 slidably disposed within the cylinder 41. The cylinder 41 is used to store the modified emulsified asphalt, and the piston rod 42 is used to push the modified emulsified asphalt out of the cylinder 41. The sliding direction of the cylinder 41 is perpendicular to the plane of the geotextile 1, and the sliding direction of the sliding block 9 is perpendicular to the sliding direction of the cylinder 41. The sliding direction of the push rod 42 is parallel to the sliding direction of the cylinder 41. The sliding block 9 has a through hole 20 for the needle of the cylinder 41 to pass through. Two telescopic rods 21 are installed between the top wall of the sliding block 9 and the cylinder 41. The two telescopic rods 21 are symmetrically arranged along the through hole 20. The telescopic direction of the telescopic rods 21 is parallel to the sliding direction of the cylinder 41, which helps to guide the sliding of the cylinder 41. In this embodiment, one piston push rod 42 corresponds to two steel nails 2. The two steel nails 2 are located on both sides of the corresponding cylinder 41. The piston push rod 42 is provided with a connecting component for driving the corresponding piston push rod 42 to move towards the water-stabilized base when the steel nails 2 on both sides are rotated towards the water-stabilized base.

[0031] Reference Figure 2 and Figure 4The connecting assembly includes a connecting rod 5 and a kit 6 mounted on the connecting rod 5. The connecting rod 5 is slidably connected to the corresponding piston push rod 42. The connecting rod 5 includes a first rod body 51, second rod bodies 52 fixedly connected to both sides of the first rod body 51, and a third rod body 53 fixedly connected to the two second rod bodies 52. The first rod body 51 is located above the corresponding piston push rod 42, and the length direction of the first rod body 51 is parallel to the length direction of the mounting plate 3. A slider 22 is fixed to the end of the piston push rod 42 away from the cylinder 41. The longitudinal section of the slider 22 is T-shaped. The upper part has a groove 23 that slides with the slider 22. The longitudinal section of the second rod 52 is an inverted L shape. The third rod 53 is located at the end of the two second rods 52 away from the first rod 51. The third rod 53 is located below the first rod 51. The length direction of the third rod 53 is parallel to the length direction of the first rod 51. The kit 6 is set on the third rod 53. There are two kits 6 on the third rod 53. The kits 6 correspond one-to-one with the steel nails 2. The two kits 6 are located at both ends of the third rod 53. The kits 6 are used to detach or be movably fitted onto the corresponding steel nails 2.

[0032] Reference Figure 2 and Figure 3 An inclined rod 24 is fixed on the mounting plate 3. The inclined rod 24 corresponds to the second rod body 52 one by one. The end of the inclined rod 24 away from the mounting plate 3 is slidably connected to the corresponding second rod body 52. ​​The second rod body 52 is provided with a groove 25 that slidably engages with the end of the corresponding inclined rod 24 away from the mounting plate 3. The length direction of the groove 25 is set in the vertical direction.

[0033] During operation, the cylinder 41 is filled with modified emulsified asphalt, and then the sleeve 6 is movably fitted onto the corresponding steel nail 2. Next, the geotextile 1 is laid on the crack, and three mounting plates 3 are placed sequentially on the geotextile 1, arranged along the length of the crack and spanning the crack. Then, the sliding block 9 is slid along the length of the mounting plate 3, causing the needle on the cylinder 41 to move to the corresponding crack. At this time, the piston rod 42 slides along the length of the first rod 51, and then the cylinder 41 is moved towards the geotextile 1, causing the needle on the cylinder 41 to move towards the corresponding crack. The needle penetrates the geotextile 1 and extends into the crack. At this time, the piston rod 42 drives the connecting rod 5 and the steel nail 2 to move downward, so that the steel nail 2 abuts against the geotextile 1. Then, the external electric drill rod causes the steel nails 2 on both sides to be vertically screwed in towards the water-stabilized base layer. At this time, the steel nails on both sides drive the piston rod 42 to slide towards the water-stabilized base layer through the connecting rod 5, so that the piston rod 42 pushes the modified latex asphalt in the cylinder 41 into the crack, realizing the simultaneous construction of crack filling and geotextile 1 installation, which helps to save treatment time and improve treatment efficiency to a certain extent. After the treatment is completed, the kit 6 is detached from the steel nail 2, and then the mounting plate 3 is removed from the geotextile 1, which helps to reuse the mounting plate 3 and save resources. Since the mounting plate 3 and the cylinder 41 have a certain weight, and the steel nail 2 is vertically screwed into the water-stabilized base layer, the entire mounting plate 3 is not easy to tilt during operation.

[0034] Reference Figure 3 and Figure 4 To facilitate detachment or movement onto the corresponding steel nail 2, a support plate 26 is fixedly connected to the bottom wall of the third rod 53. The support plate 26 corresponds one-to-one with the kit 6. The kit 6 includes two semicircular rings 61 hinged to the corresponding support plate 26. Each semicircular ring 61 has a hinged end and a free end. The hinged end of the semicircular ring 61 is hinged to the support plate 26, and the hinge axis of the semicircular ring 61 is parallel to the sliding direction of the cylinder 41. The free ends of the two semicircular rings 61 are respectively fixed with abutment ears 27, which are used for mutual abutment. 2 is located between the two semicircular rings 61. One side abutting ear 27 is fixed with an elastic arc-shaped block 7, and the other side abutting ear 27 is provided with a locking hole 8 for the arc-shaped block 7 to pass through. The arc-shaped block 7 is a rubber ball. The diameter of the locking hole 8 is smaller than the diameter of the arc-shaped block 7. When the arc-shaped block 7 passes through the locking hole 8, the inner diameter of the ring formed by the two semicircular rings 61 is smaller than the diameter of the head of the steel nail 2, and the inner diameter of the ring formed by the two semicircular rings 61 is larger than the diameter of the steel nail 2 shaft, so that the steel nail 2 can rotate between the two semicircular rings 61.

[0035] Reference Figure 2 and Figure 4A pull rope 28 is fixed on the semicircular ring 61. The pull ropes 28 on the corresponding two semicircular rings 61 slide through the top wall of the third rod 53 and are connected to the connecting rope 29. The connecting ropes 29 on the two side kits 6 are connected to each other. When the connecting rope 29 is pulled, the pull ropes 28 on both sides pull the semicircular ring 61 to rotate in a direction away from each other, so as to facilitate the separation of the semicircular ring 61 from the steel nail 2.

[0036] When dealing with cracks, pull the connecting rope 29 so that the two pull ropes 28 pull the semicircular rings 61 to rotate in opposite directions. Then place the steel nail 2 between the corresponding semicircular rings 61 and rotate the two semicircular rings 61 in opposite directions so that the arc-shaped block 7 passes through the locking hole 8. At this time, the head of the steel nail 2 abuts against the top wall of the semicircular ring 61, which facilitates the movement of the piston rod 42 driven by the steel nail 2.

[0037] Reference Figure 2 and Figure 3 A magnet 10 is slidably inserted on the sliding block 9. The magnet 10 is cylindrical and its sliding direction is parallel to the sliding direction of the cylinder 41. An iron sheet 11 is fixedly bonded to the mounting plate 3 and is attracted to the bottom wall of the magnet 10. The length direction of the iron sheet 11 is parallel to the sliding direction of the sliding block 9.

[0038] When it is necessary to move the sliding block 9, slide the magnet 10 away from the iron sheet 11 to disengage the magnet 10 from the iron sheet 11, which facilitates the movement of the cylinder 41. After moving the sliding block 9 to the desired position, release the magnet 10 and press the magnet 10 towards the iron sheet 11 to make the magnet 10 and the iron sheet 11 adhere and cooperate, so that the sliding block 9 is less likely to slide unnecessarily during the grouting process.

[0039] Reference Figure 2 and Figure 3 A tension spring 12 is movably sleeved on the needle head of the cylinder 41. In other embodiments, the tension spring 12 can be sleeved on the telescopic rod 21. The tension spring 12 is used to pull the cylinder 41 to slide towards the geotextile 1. One end of the tension spring 12 is fixedly connected to the top wall of the sliding block 9, and the other end is fixedly connected to the cylinder 41. The extension direction of the tension spring 12 is parallel to the sliding direction of the cylinder 41. The sliding block 9 is provided with a limiting member 13 for restricting the cylinder 41 from sliding towards the geotextile 1. The limiting member 13 includes a movable locking mechanism. A retaining ring 131 is located outside the needle of the cylinder 41, and a limiting block 132 is fixedly connected to the cylinder 41. The retaining ring 131 is located outside the tension spring 12. A notch 14 is provided on the retaining ring 131 for the needle of the cylinder 41 to move out or move in. One side of the retaining ring 131 is used to abut against the sliding block 9, and the other side is used to abut against the side of the limiting block 132 near the geotextile 1. When the retaining ring 131 abuts against the side of the limiting block 132 near the geotextile 1, the tension spring 12 is in a stretched state, and the needle of the cylinder 41 is located above the geotextile 1.

[0040] When it is necessary to move the sliding block 9, pull the cylinder 41 to slide away from the geotextile 1, and place the retaining ring 131 between the limiting block 132 and the sliding block 9. The retaining ring 131 provides certain support for the cylinder 41, making it difficult for the needle on the cylinder 41 to come into contact with the geotextile 1. When it is necessary to fill the crack, remove the retaining ring 131. At this time, the cylinder 41 slides towards the geotextile 1 under the pulling action of the tension spring 12, so that the needle can pass through the geotextile 1 and enter the crack, providing certain convenience for the workers and saving manpower.

[0041] Reference Figure 3 and Figure 4 The third rod body 53 has an installation cavity 30, and a drive column 15 is rotatably mounted inside the installation cavity 30. The rotation axis of the drive column 15 is parallel to the sliding direction of the cylinder 41. The drive column 15 corresponds one-to-one with the steel nail 2 and is positioned above the corresponding steel nail 2. The head of the steel nail 2 has a cross-shaped groove 16. A cross-shaped block 17 that engages with the cross-shaped groove 16 is fixedly connected to the side of the drive column 15 near the steel nail 2. An opening 31 for the steel nail 2 to move in or out is provided on the bottom wall of the third rod body 53. The opening 31 communicates with the installation cavity 30. The third rod body 53 is provided with a mechanism for driving both sides. The synchronous component 18, which synchronously rotates downwards with the drive column 15, includes a transmission rod 181, pulleys 182, and belt 183. The transmission rod 181 is rotatably inserted through the middle of the third rod body 53, and the rotation axis of the transmission rod 181 is parallel to the rotation axis of the drive column 15. The pulleys 182 are respectively fixedly sleeved on the transmission rod 181 and the drive columns 15 on both sides. The belt 183 is wound around the three pulleys 182, and the three pulleys 182 are connected by the belt 183. The end of the transmission rod 181 located outside the third rod body 53 has a connecting groove 19 for engaging with an external electric drill rod. In this embodiment, the cross-section of the connecting groove 19 is cross-shaped.

[0042] When it is necessary to simultaneously screw the steel nails 2 on both sides into the water-stabilized base layer, an external electric drill rod is used. The external electric drill rod is engaged with the connecting groove 19 of the transmission rod 181. Then, the external electric drill rod is started to drive the transmission rod 181 to rotate vertically downwards. Through the transmission of the belt 183 and pulley 182, the steel nails 2 on both sides are driven to pass through the geotextile 1 and rotate into the water-stabilized base layer. After the steel nails 2 enter the water-stabilized base layer, the connecting rope 29 is pulled, causing the rope 28 to drive the semicircular rings 61 on both sides to rotate in a direction away from each other and disengage from the corresponding steel nails 2. This makes it easier to embed the steel nails 2 into the geotextile 1 and reduce the distance from the head of the steel nail 2 to the geotextile 1. This allows for the simultaneous installation of two steel nails 2, which further helps to save processing time and improve processing efficiency.

[0043] The implementation principle of this application embodiment is as follows: When treating cracks, first fill the cylinder 41 with modified emulsified asphalt, then pull the cylinder 41 away from the geotextile 1 to stretch the tension spring 12, and place the retaining ring 131 between the limiting block 132 and the sliding block 9. The retaining ring 131 provides certain support for the cylinder 41. Next, pull the connecting rope 29 to make the rope 28 drive the semicircular rings 61 on both sides to rotate away from each other. Then, put the head of the steel nail 2 into the installation cavity 30 from the opening 31, so that the cross-shaped block 17 engages with the cross-shaped groove 16 of the corresponding steel nail 2. Then, rotate the semicircular rings 61 on both sides towards each other to make the arc-shaped block 7 pass through the corresponding locking hole 8. At this time, the head of the steel nail 2 abuts against the top wall of the semicircular ring 61.

[0044] Then, the geotextile 1 is laid on the crack, and three mounting plates 3 are placed on the geotextile 1 in sequence. The three mounting plates 3 are arranged along the length of the crack and span the crack, so that the steel nail 2 is in a suitable position on the geotextile 1. Then, the magnet 10 is slid away from the geotextile 1, and the magnet 10 is separated from the iron plate 11. Then, the sliding block 9 is slid along the length of the mounting plate 3, so that the needle on the cylinder 41 is moved to the corresponding crack. Then, the retaining ring 131 is removed from the cylinder 41. Under the tension of the tension spring 12, the cylinder 41 is moved towards the geotextile 1, so that the needle on the cylinder 41 passes through the geotextile 1 and extends into the crack. At this time, the piston rod 42 drives the connecting rod 5 and the steel nail 2 to move down, so that the steel nail 2 abuts against the geotextile 1.

[0045] Next, an external electric drill rod is used to engage with the connecting groove 19 of the transmission rod 181. The external electric drill rod is then started to drive the transmission rod 181 to rotate vertically downwards. Through the transmission of the belt 183 and pulley 182, the steel nails 2 on both sides pass through the geotextile 1 and rotate into the water-stabilized base layer. At this time, the steel nails 2 on both sides drive the piston push rod 42 to slide towards the water-stabilized base layer through the connecting rod 5. This causes the piston push rod 42 to push the modified latex asphalt in the cylinder 41 into the crack. After the steel nails 2 enter the water-stabilized base layer, the connecting rope 29 is pulled, causing the rope 28 to drive the semi-circular rings 61 on both sides to rotate away from each other and disengage from the corresponding steel nails 2. This facilitates the embedding of the steel nails 2 into the geotextile 1, thereby achieving simultaneous construction of crack filling and geotextile 1 installation. This helps to save processing time and improve processing efficiency to a certain extent.

[0046] After processing, move the mounting plate 3 upward to remove the needle from the crack in the cylinder 41, causing the cross-shaped block 17 on the drive column 15 to disengage from the cross-shaped groove 16 on the steel nail 2, and the steel nail 2 to move out of the third rod 53 from the opening 31.

[0047] This application also discloses a method for treating cracks in a water-stabilized base course. The method for treating cracks in a water-stabilized base course, using the aforementioned crack treatment structure, further includes the following steps: Step 1: Use a blower to clean the crack and the water-stabilized base layer on both sides of the crack; Step 2: Fill the cylinder 41 with modified emulsified asphalt, then pull the cylinder 41 away from the geotextile 1. Place the retaining ring 131 between the limiting block 132 and the sliding block 9. Then pull the connecting rope 29 to rotate the semicircular rings 61 on both sides away from each other. Insert the head of the steel nail 2 into the installation cavity 30 from the opening 31, so that the cross-shaped block 17 engages with the cross-shaped groove 16 of the corresponding steel nail 2. Then rotate the semicircular rings 61 on both sides towards each other so that the arc-shaped block 7 passes through the corresponding retaining hole 8. Then lay the geotextile 1 above the crack and place the three mounting plates 3 in the appropriate positions of the geotextile 1. The three mounting plates 3 are arranged along the length of the crack. Step 3: Pull the magnet 10 away from the iron sheet 11 to separate the magnet 10 from the iron sheet 11. Slide the sliding block 9 to the desired position so that the needle of the cylinder 41 is aligned with the crack. Then release the magnet 10 so that the magnet 10 is attracted to the iron sheet 11. Step 4: Remove the retaining ring 131 from the cylinder 41, and use the tension spring 12 to pull the cylinder 41 towards the geotextile 1, so that the needle of the cylinder 41 passes through the geotextile 1 and extends into the crack. Step 5: Then, the external electric drill rod drives the transmission rod 181 to rotate vertically downward. Through the transmission of the belt 183 and pulley 182, the steel nails 2 on both sides simultaneously pass through the geotextile 1 and are screwed into the water-stabilized base layer. At this time, the connecting rod 5 drives the piston push rod 42 to slide towards the water-stabilized base layer. The piston push rod 42 pushes the modified emulsified asphalt in the cylinder 41 to flow into the crack, thereby filling the crack. Step 6: After the steel nail 2 enters the water-stabilized base layer, pull the connecting rope 29 to make the semicircular rings 61 on both sides rotate in a direction away from each other, so that the semicircular rings 61 are separated from the corresponding steel nails 2.

[0048] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A structure for treating cracks in a water-stabilized base course, comprising geotextile (1) for laying on the cracks and steel nails (2) for fixing the geotextile (1) to the water-stabilized base course, characterized in that: An installation plate (3) is detachably installed on the top of the geotextile (1). A syringe (4) for injecting modified emulsified asphalt into the crack is slidably installed on the installation plate (3). The syringe (4) includes a cylinder (41) slidably installed on the installation plate (3) and a piston rod (42) slidably installed in the cylinder (41). The cylinder (41) is used to store the modified emulsified asphalt. The piston rod (42) is used to push the modified emulsified asphalt out of the cylinder (41). The sliding direction of the cylinder (41) is perpendicular to the plane of the geotextile (1). The sliding direction of the piston rod (42) is parallel to the sliding direction of the cylinder (41). A connecting component is provided on the piston rod (42) for driving the piston rod (42) to move towards the water-stabilized base when the steel nail (2) is rotated into the water-stabilized base. The connecting assembly includes a connecting rod (5) disposed on the piston push rod (42) and a kit (6) disposed on the connecting rod (5). The kit (6) is used to detach from or be movably sleeved on the steel nail (2). The connecting rod (5) is connected to the steel nail (2) through the kit (6). The kit (6) includes two semicircular rings (61) hinged to each other on the connecting rod (5). Each semicircular ring (61) has a hinged end and a free end. The hinged end of the semicircular ring (61) is hinged to the connecting rod (5). The free ends of the two semicircular rings (61) are used to abut against each other. The steel nail (2) is located between the two semicircular rings (61). A flexible arc-shaped block (7) is provided on the free end of one semicircular ring (61). A locking hole (8) is provided on the free end of the other semicircular ring (61) for the arc-shaped block (7) to pass through. When the arc-shaped block (7) passes through the locking hole (8), the inner diameter of the ring formed by the two semicircular rings (61) is smaller than the diameter of the head of the steel nail (2). Two kits (6) are provided on the connecting rod (5). The kits (6) correspond one-to-one with the steel nails (2). A drive column (15) is rotatably provided on the connecting rod (5). The rotation axis of the drive column (15) is parallel to the sliding direction of the cylinder (41). The drive column (15) corresponds one-to-one with the steel nails (2). The drive column (15) is located above the corresponding steel nail (2). A cross-shaped groove (16) is provided on the head of the steel nail (2). A cross-shaped block (17) is provided on the side of the drive column (15) near the steel nail (2) to engage with the cross-shaped groove (16). A synchronizing element (18) is provided on the connecting rod (5) to drive the two drive columns (15) to rotate downward synchronously.

2. The structure for treating cracks in a water-stabilized base course according to claim 1, characterized in that: A sliding block (9) is slidably disposed on the mounting plate (3). The sliding direction of the sliding block (9) is perpendicular to the sliding direction of the cylinder (41). The cylinder (41) is slidably disposed on the sliding block (9). The piston push rod (42) is slidably connected to the connecting rod (5).

3. The structure for treating cracks in a water-stabilized base course according to claim 2, characterized in that: A magnet (10) is slidably passed through the sliding block (9), and the sliding direction of the magnet (10) is parallel to the sliding direction of the cylinder (41). An iron sheet (11) is provided on the mounting plate (3) to be attracted and cooperate with the magnet (10), and the length direction of the iron sheet (11) is parallel to the sliding direction of the sliding block (9).

4. The structure for treating cracks in a water-stabilized base course according to claim 2, characterized in that: A tension spring (12) is fitted on the cylinder (41). The tension spring (12) is used to pull the cylinder (41) to slide towards the geotextile (1). One end of the tension spring (12) is set on the sliding block (9), and the other end is set on the cylinder (41). The sliding block (9) is provided with a limiting member (13) for restricting the cylinder (41) from sliding towards the geotextile (1).

5. The structure for treating cracks in a water-stabilized base course according to claim 4, characterized in that: The limiting component (13) includes a retaining ring (131) that is movably locked outside the cylinder (41) and a limiting block (132) set on the cylinder (41). The retaining ring (131) has a notch (14) for the cylinder (41) to move out or move in. One side of the retaining ring (131) is used to abut against the sliding block (9), and the other side is used to abut against the side of the limiting block (132) near the geotextile (1). When the retaining ring (131) abuts against the side of the limiting block (132) near the geotextile (1), the tension spring (12) is in a stretched state, and the needle of the cylinder (41) is located above the geotextile (1).

6. The structure for treating cracks in a water-stabilized base course according to claim 1, characterized in that: The synchronizing element (18) includes a transmission rod (181), pulleys (182) and a belt (183). The transmission rod (181) is rotatably mounted on the connecting rod (5). The rotation axis of the transmission rod (181) is parallel to the rotation axis of the drive column (15). The pulleys (182) are respectively sleeved on the transmission rod (181) and the drive columns (15) on both sides. The belt (183) is wound around the three pulleys (182). The three pulleys (182) are connected by the belt (183). The transmission rod (181) has a connecting groove (19) for engaging with an external electric drill rod.

7. A method for treating cracks in a water-stabilized base course, using the water-stabilized base course crack treatment structure as described in any one of claims 1-6, characterized in that, It also includes the following steps: Step 1: Clean the cracks; Step 2: Inhale modified emulsified asphalt into the cylinder (41), lay the geotextile (1) above the crack, and install the mounting plate (3) on the geotextile (1); Step 3: Align the needle tip of the cylinder (41) with the crack; Step 4: Slide the cylinder (41) towards the geotextile (1) so that the needle of the cylinder (41) passes through the geotextile (1) and extends into the crack; Step 5: Then, the steel nail (2) is screwed through the geotextile (1) into the water-stabilized base layer. At this time, the piston rod (42) is driven by the connecting component to slide towards the water-stabilized base layer. The piston rod (42) pushes the modified emulsified asphalt in the cylinder (41) to flow into the crack, thereby filling the crack.

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