Device and method for removing moisture from pavement structure

Abstract

The present invention relates to the technical field of road maintenance, and provides a device and method for removing moisture from a pavement structure, comprising: a cylindrical cage frame, a first guide layer, and a water absorbent; the cylindrical cage frame is in the shape of a long column; the first guide layer is coated on the outer periphery of the cylindrical cage frame, and is used to absorb and guide water so that the water is evenly distributed throughout the first guide layer; the water absorbent is arranged on the first guide layer to form a first water absorption layer for absorbing water. With this arrangement, the first guide layer can absorb moisture from the pavement structure and guide the moisture so that the moisture is evenly distributed throughout the first guide layer, facilitating efficient absorption of moisture by the water absorbent on the first guide layer. Compared to traditional natural evaporation, this device can promptly and effectively eliminate moisture from the pavement structure, thereby reducing water damage.

Description

Technical Field

[0001] The present invention relates to the technical field of road maintenance, and in particular to a device and method for removing moisture from a pavement structure. Background Art

[0002] Water damage is a typical and common ailment of semi-rigid base asphalt pavements. Various cracks combined with water seepage are the primary cause of damage, particularly structural damage, to semi-rigid base asphalt pavements. The presence of cracks in the pavement and the porosity of the surface material (both inherent design porosity and locally high porosity due to construction) allow rainwater to seep into the pavement structure. If this water is not quickly removed, it will corrode the pavement's structural materials and degrade their mechanical properties.

[0003] Because the semi-rigid base material is dense and impermeable, some moisture accumulates at the interface between the asphalt layer and the semi-rigid base. Due to scouring and soaking, the interlayer connection is destroyed and the mixture becomes loose, reducing the overall structural strength and fatigue resistance of the asphalt pavement, increasing deformation of the pavement structure, and shortening the pavement service life. Because the aggregate surface has a stronger adsorption capacity for water than for asphalt, moisture that enters the pavement structure will cause asphalt to peel off from the aggregate surface under long-term contact. Combined with the influence of traffic loads, water will flow, generating dynamic water pressure, which will cause the peeled asphalt to be lost. The surface layer of the asphalt pavement is easily affected by rainwater and wheel pressure, and it is prone to surface loosening, potholes, lumps, longitudinal and transverse cracks, as well as rainwater seeping along the cracks, causing gnawing, local subsidence, and slurrying, causing damage to the pavement surface and structure.

[0004] In related technologies, a pavement structure drainage system is generally designed to ensure that surface water and groundwater are discharged in a timely manner. However, this cannot prevent more or less moisture from entering the pavement structure. For moisture that enters the pavement structure after the project is completed, it can only be slowly eliminated by natural evaporation and vaporization, but the process is slow and difficult to eliminate completely.

[0005] Therefore, how to promptly and effectively eliminate moisture from the pavement structure and reduce water damage is an important issue that needs to be urgently addressed in the industry. Summary of the Invention

[0006] The present invention provides a device and method for removing moisture from a pavement structure, which is used to solve the problem in the prior art that accumulated water in a pavement structure can only be eliminated by natural evaporation, which is a slow process and difficult to eliminate completely, and to timely and effectively eliminate moisture from the pavement structure and reduce water damage.

[0007] The present invention provides a device for removing moisture in a pavement structure, comprising: a cage frame, a first guide layer and a water absorbent;

[0008] The cage frame is in the shape of a long column; the first guide layer is coated on the outer periphery of the cage frame, and is used to absorb water and guide water so that the water is evenly distributed throughout the first guide layer; the water absorbent is arranged on the first guide layer to form a first water absorption layer, which is used to absorb water.

[0009] According to a device for removing moisture from a pavement structure provided by the present invention, the first guide layer includes a first base layer wrapped around the outer periphery of the cage frame and a first surface layer wrapped around the first base layer, the first surface layer is a hydrophilic guide non-woven fabric, and the water absorbent is arranged between the first base layer and the first surface layer.

[0010] According to a device for removing moisture from a pavement structure provided by the present invention, the first guide layer is formed by a single layer of hydrophilic guide non-woven fabric wrapped around the outer periphery of the cage frame, and the water absorbent is arranged on the side of the first guide layer facing the cage frame.

[0011] According to the device for removing moisture from a pavement structure provided by the present invention, the water absorbent is a granular or fibrous super absorbent resin, and the water absorbent is adhered to the first guide layer by a hot melt adhesive process.

[0012] According to a device for removing moisture from a pavement structure provided by the present invention, both ends of the first guide layer are provided with Velcro tapes, and the first guide layer is locked to the cage frame through the Velcro tapes.

[0013] According to a device for removing moisture from a pavement structure provided by the present invention, the cage frame includes a cylindrical body, a top cover and a bottom support; the body is surrounded by multiple first support columns; the top cover is fixedly connected to the top end of the body, and the bottom support is fixedly connected to the bottom end of the body.

[0014] According to a device for removing moisture from a pavement structure provided by the present invention, the cage frame also includes at least one second support column, which is located in the body; one end of the second support column is fixedly connected to the top cover, and the other end is fixedly connected to the bottom support.

[0015] According to a device for removing moisture from a pavement structure provided by the present invention, at least one through hole is provided on the base; the second support column is wrapped with a second guide layer, and a water absorbent is arranged on the second guide layer to form a second water absorption layer.

[0016] According to a device for removing moisture from a pavement structure provided by the present invention, a first annular groove is provided around the center of the top cover, a second annular groove is provided around the center of the base, one end of the first support column is located in the first annular groove and is fixed to the top cover by bonding, and the other end of the first support column is located in the second annular groove and is fixed to the base by bonding.

[0017] The present invention also provides a method for removing moisture from a pavement structure, comprising the following steps:

[0018] Drilling holes in water-prone areas of the pavement structure to create holes for placement of the aforementioned removal devices;

[0019] Level the hole bottom, fill the bottom of the hole with 3-5mm crushed stone and tamp it down;

[0020] Place the cleaning device, apply water-based epoxy resin glue on the sides of the top cover and the bottom bracket, and then put the cleaning device into the hole.

[0021] According to a method for removing moisture from a pavement structure provided by the present invention, when the cleaning device needs to be left in a hole for a long time, the hole is deepened by 5-10 cm. After the cleaning device is placed in the hole, the top of the hole is sealed with asphalt concrete.

[0022] The present invention provides a device and method for removing moisture from a pavement structure. In actual application, water-rich areas within the pavement structure are detected or estimated, a hole is drilled using an electric drill, and then the removal device is installed in the drilled hole. The cylindrical cage skeleton can play a supporting role to ensure the structural strength of the pavement. The first guide layer can absorb moisture from the pavement structure and guide the moisture so that the moisture is evenly distributed throughout the first guide layer, facilitating efficient moisture absorption by the water absorbent on the first guide layer. Compared with traditional natural evaporation, this method can timely and effectively eliminate moisture from the pavement structure, reducing water damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a schematic structural diagram of a device for removing moisture from a pavement structure provided by the present invention;

[0025] Figure 2 This is one of the structural diagrams of the cage skeleton provided by the present invention;

[0026] Figure 3 This is the second structural schematic diagram of the cage skeleton provided by the present invention.

[0027] Reference numerals:

[0028] 1. Cage frame; 10. Main body; 100. First support column; 11. Top cover; 110. First annular groove; 111. First circular groove; 12. Bottom support; 120. Second annular groove; 121. Second circular groove; 122. Through hole; 13. Second support column; 2. First guide layer; 20. First base layer; 21. First surface layer; 3. First water absorption layer; 4. Second guide layer; 40. Second base layer; 41. Second surface layer; 5. Second water absorption layer. DETAILED DESCRIPTION

[0029] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0030] To facilitate understanding of the device and method for removing moisture from pavement structures provided by the present invention, its application scenarios are first explained. Water damage is a typical and common problem with semi-rigid asphalt pavements. Rainwater penetrates the pavement structure through cracks in the pavement or gaps in the surface material and accumulates between the asphalt layer and the semi-rigid base layer. Due to scouring and soaking, the asphalt peels off. Under the action of traffic loads, hydraulic pressure is generated in the water-damaged area, causing the peeled asphalt to flow away, thereby damaging the pavement surface and structure. Conventional pavement drainage systems are generally designed to ensure the timely discharge of surface water and groundwater, but they cannot prevent the ingress of moisture into the pavement structure. Because the semi-rigid base material is dense and impermeable, moisture that enters the pavement structure can only be slowly eliminated through natural evaporation, a slow and difficult process. Using high-quality asphalt, aggregates, and admixtures to combat water damage significantly increases project costs. Therefore, the present invention provides a device and method for removing moisture from pavement structures to promptly and effectively remove moisture from the pavement structure and minimize water damage.

[0031] The following combination Figure 1-Figure 3 The present invention describes an apparatus and method for removing moisture from a pavement structure.

[0032] Reference Figure 1A device for removing moisture from a pavement structure comprises a cage frame 1, a first guide layer 2 and a water absorbent; wherein the cage frame 1 is in the shape of a long column, for example, a cylindrical column or a polygonal column, which can be selected according to actual needs. In this embodiment, the cage frame 1 is in the shape of a long cylindrical column; the first guide layer 2 is wrapped around the outer periphery of the cage frame 1, and is mainly used to absorb water and guide the water so that the water is evenly distributed throughout the entire first guide layer 2; the water absorbent is arranged in the first guide layer 2 to form a first water absorption layer 3. After being absorbed and guided by the first guide layer 2, the water is gradually distributed throughout the entire first guide layer 2, making it easier for the water absorbent to absorb the water on the first guide layer 2 to improve the water removal efficiency.

[0033] In actual application, water-rich areas in the pavement structure are detected or estimated, and holes are drilled using an electric drill or a coring machine is used to take cores. Then, the removal device is installed in the drilled hole. The cage frame 1 can play a supporting role to ensure the structural strength of the pavement and avoid affecting driving. The first guide layer 2 can absorb moisture in the pavement structure and guide the moisture so that the moisture is evenly distributed throughout the first guide layer 2, making it easier for the water absorbent on the first guide layer 2 to efficiently absorb moisture. Compared with traditional natural evaporation, it can timely and effectively eliminate moisture in the pavement structure and reduce water damage.

[0034] Specifically, refer to Figure 2 and Figure 3 The cage frame 1 includes a cylindrical body 10, a top cover 11 covering the top of the body 10, and a base 12 covering the bottom of the body 10; wherein, the body 10 is surrounded by a plurality of first support columns 100 to provide support. The material, specification and quantity of the first support columns 100 can be selected according to actual needs. In this embodiment, there are 8 first support columns 100, which are stainless steel columns with a diameter of 1 cm and a compressive strength of not less than 25 MPa.

[0035] The top cover 11 and the bottom bracket 12 are both disc-shaped. They can be made of the same or different materials, as long as they meet the required compressive strength. For example, high-strength rubber or stainless steel can be used. In this embodiment, both the top cover 11 and the bottom bracket 12 are made of stainless steel. Both the top cover 11 and the bottom bracket 12 are fixedly connected to the body 10.

[0036] Specifically, a first annular groove 110 is provided around the center of a circle on the side of the top cover 11 facing the bottom bracket 12, and correspondingly, a second annular groove 120 is provided around the center of a circle on the side of the bottom bracket 12 facing the top cover 11. The first annular groove 110 and the second annular groove 120 are of the same size. One end of the first support column 100 is inserted into the first annular groove 110 and is bonded and fixed to the top cover 11 by adhesive, while the other end is inserted into the second annular groove 120 and is bonded and fixed to the bottom bracket 12 by adhesive. The first annular groove 110 and the second annular groove 120 facilitate positioning and installation of the first support column 100. The type of adhesive can be selected according to actual needs, but the selected adhesive must not only meet the bonding strength requirements of the first support column 100 to the top cover 11 and the bottom bracket 12, but also have a certain degree of waterproof performance, so that its bonding performance will not be significantly affected by water. In this embodiment, the adhesive is a high-strength epoxy resin glue.

[0037] In another embodiment, the first support column 100 can also be connected to the top cover 11 and the bottom support 12 by threads, that is, threads with opposite rotation directions are set at both ends of the first support column 100, and threaded holes are opened at corresponding positions on the top cover 11 and the bottom support 12. The first support column 100 is fixed to the top cover 11 and the bottom support 12 by screwing the two ends of the first support column 100 into the threaded holes of the top cover 11 and the bottom support 12 respectively.

[0038] In another embodiment, the first support column 100 can be connected to one of the top cover 11 and the bottom bracket 12 by threading, and fixed to the other by adhesive. The top cover 11 or the bottom bracket 12 to which the first support column 100 is fixed by adhesive can be provided with an annular groove to facilitate the positioning and installation of the first support column 100.

[0039] In another embodiment, without considering the convenience of assembly and the reuse of components, the first support column 100 can also be fixed to the top cover 11 and / or the bottom bracket 12 by welding.

[0040] The first guide layer 2 includes a first base layer 20 and a first surface layer 21; the first base layer 20 is wrapped around the outer periphery of the cage frame 1, and the first surface layer 21 is wrapped outside the first base layer 20, and the water absorbent is located between the first base layer 20 and the first surface layer 21; wherein, the first base layer 20 adopts a non-woven fabric with high elasticity and high elongation, which is mainly used to provide an installation position for the water absorbent, and its specific composition can be selected according to actual needs. In this embodiment, the first base layer 20 adopts polyester filament needle-punched non-woven geotextile.

[0041] The first surface layer 21 is made of a commercially available or custom-made hydrophilic, flow-conducting non-woven fabric. After absorbing water, it can quickly and evenly distribute the water, thereby improving the water absorption and retention efficiency and capacity of the inner layer water-absorbing agent. The coordination between the first base layer 20 and the first surface layer 21 can form a coating around the water-absorbing agent, thereby improving its stability and reducing the possibility of it falling off. The specific composition of the first surface layer 21 can be selected based on actual needs. In this embodiment, the first surface layer 21 is made of a polyester filament needle-punched non-woven geotextile. While being water-absorbent and permeable, it also has corrosion resistance, anti-aging, isolation, filtration, drainage, protection, stability, and reinforcement functions.

[0042] In another embodiment, the first guide layer 2 can also be formed by a single layer of hydrophilic guide nonwoven fabric wrapped around the cage frame 1. The water absorbent is disposed on the surface of the first guide layer 2 facing the cage frame 1. The first guide layer 2 is arranged in a single layer, which simplifies the manufacturing process and reduces the cost. Specifically, the single layer of nonwoven fabric can be a polyester filament needle-punched nonwoven geotextile.

[0043] In order to facilitate the installation of the first guide layer 2, joints are formed at both ends of the first guide layer 2, and Velcro is provided at the joints at both ends of the first guide layer 2. When installing the first guide layer 2, the first guide layer 2 is wrapped around the cylinder cage frame 1 for one week, and then the Velcro is closed and fastened to make the first guide layer 2 tightly embrace the cylinder cage frame 1, thereby completing the installation of the first guide layer 2.

[0044] In order to improve the stability of the first guide layer 2 on the cage frame 1, a binding belt can be used to tighten and fix the first guide layer 2 on the cage frame 1. Specifically, the binding belt can be any strip-shaped component that can be used to bind the first guide layer 2, such as nylon rope, self-locking nylon tie, rubber tie, iron wire, etc.

[0045] The type and dosage of the absorbent can be selected based on actual needs. In this embodiment, considering the application scenario and purpose, a highly absorbent resin (superabsorbent) is preferred due to its economical price, rapid water absorption rate, high liquid absorption volume, and low re-infiltration rate. The superabsorbent resin has a water absorption rate of no less than 500 times. Superabsorbent resin not only absorbs water efficiently but also achieves maximum hydrogel strength after saturation, providing strength together with the cage framework 1 and reinforcing the pavement structure. Specifically, the superabsorbent resin is in granular or fibrous form and adhered to the first guide layer 2 using a conventional hot-melt adhesive process. The specific dosage of superabsorbent resin is 1000g / m2.

[0046] Reference Figure 1The cage frame 1 also includes a second support column 13, which is located in the body 10 and has its two ends fixedly connected to the top cover 11 and the bottom support 12, respectively, to further improve the supporting performance of the cage frame 1. Its material and specifications can be selected according to actual needs. In this embodiment, the second support column 13 is a stainless steel column with a diameter of 2 cm and a compressive strength of not less than 25 MPa.

[0047] In order to facilitate the positioning and installation of the second support column 13, a first circular groove 111 is provided at the center position of the top cover 11, and correspondingly, a second circular groove 121 is provided at the center position of the bottom bracket 12. One end of the second support column 13 is inserted into the first circular groove 111 and is bonded and fixed to the top cover 11 by adhesive, and the other end is inserted into the second circular groove 121 and is bonded and fixed to the bottom bracket 12 by adhesive.

[0048] In another embodiment, the number of second support columns 13 can be multiple according to actual needs.

[0049] In another embodiment, the second support column 13 can be connected to one of the top cover 11 and the bottom bracket 12 by threaded connection, and fixed to the other by adhesive. A circular groove can be provided on the top cover 11 or the bottom bracket 12 to which the second support column 13 is fixed by adhesive to facilitate the positioning and installation of the second support column 13.

[0050] In another embodiment, the second support column 13 can also be connected to the top cover 11 and the bottom bracket 12 by threads, that is, threads with opposite rotation directions are set at both ends of the second support column 13, and threaded holes are opened at corresponding positions on the top cover 11 and the bottom bracket 12. The second support column 13 is fixed to the top cover 11 and the bottom bracket 12 by screwing the two ends of the second support column 13 into the threaded holes of the top cover 11 and the bottom bracket 12 respectively.

[0051] The outer circumference of the second support column 13 is wrapped with a second guide layer 4, and a second water-absorbing layer 5 formed of a water-absorbing agent is provided on the second guide layer 4 to further enhance the water absorption and water retention efficiency of the cleaning device, which can absorb and retain more water and is suitable for situations where there is more water in the pavement structure.

[0052] Specifically, the structure of the second guide layer 4 is identical to that of the first guide layer 2, comprising a second base layer 40 and a second surface layer 41 made of non-woven fabric. The second base layer 40 wraps around the outer periphery of the second support column 13, and the second surface layer 41 wraps around the second base layer 40. A water-absorbing agent is positioned between the second base layer 40 and the second surface layer 41. The materials of the second base layer 40 and the first base layer 20, and the second surface layer 41 and the first surface layer 21, can be the same or different. In this embodiment, the second base layer 40 and the second surface layer 41 are both made of polyester needle-punched non-woven geotextile. Similarly, the water-absorbing agent on the second guide layer 4 can be the same or different from that on the first guide layer 2. In this embodiment, the water-absorbing agent on the second guide layer 4 is also made of a superabsorbent resin with a water absorption rate of at least 500 times.

[0053] In another embodiment, the second guide layer 4 may also be formed of a single layer of hydrophilic guide non-woven fabric wrapped around the outer circumference of the second support column 13 , and the water absorbent is disposed on the side of the second guide layer 4 facing away from the second support column 13 .

[0054] Similar to the first guide layer 2, the second guide layer 4 also has joints formed at both ends, and Velcro is provided at the joints. After the second guide layer 4 wraps around the second support column 13 for one circle, it is fastened to the second support column 13 by Velcro to facilitate the installation of the second guide layer 4 on the second support column 13.

[0055] Reference Figure 2 and Figure 3 At least one through hole 122 is provided on the bottom support 12, and the moisture at the bottom of the bottom support 12 can enter the cage frame 1 through the through hole 122, so as to absorb, concentrate and fix the moisture under the bottom support 12 more efficiently, thereby enhancing the overall water collection, water consolidation and water removal functions of the cleaning device.

[0056] It should be noted that the size of the above-mentioned cleaning device can be adjusted as needed based on actual conditions such as the thickness of each structural layer of the actual road surface, traffic volume and heavy load, rainfall and road cracks, and the detected or estimated amount of moisture in the structure.

[0057] The method for removing moisture from a pavement structure provided by the present invention is described below. The method for removing moisture from a pavement structure described below and the device for removing moisture described above can be referenced to each other.

[0058] A method for removing moisture from a pavement structure comprises the following steps:

[0059] S1. Drilling: Use ground-penetrating radar or coring to detect or estimate water-prone areas within the pavement structure. Then, use an electric drill or a coring machine to drill holes to create holes for placement of removal devices. Drilling circular holes at the ends of pavement cracks effectively eliminates stress at the crack tips and prevents further crack expansion. The density of the holes can be determined based on actual conditions, such as the water content and distribution within the pavement structure.

[0060] S2. Level the hole bottom; use 3-5mm of cement to fill the hole bottom and tamp it to keep the hole bottom flat;

[0061] S3, placing the removal device; after applying water-based epoxy resin glue on the sides of the top cover 11 and the bottom bracket 12, place the removal device into the hole; epoxy resin glue can enhance the bonding effect, so that the top cover 11 and the bottom bracket 12 are tightly and firmly combined with the surrounding.

[0062] The retention time of the cleaning device within the hole can be determined based on the water content, distribution area, and water seepage over a specific period within the pavement structure. If the cleaning device needs to remain in the hole for an extended period, the hole can be deepened by 5-10 cm and the upper portion of the hole sealed with fine asphalt concrete. Specifically, the asphalt concrete wash can be colored to serve as a marker, facilitating subsequent inspection, testing, and replacement.

[0063] The novel feature of the present invention is that, in actual application, water-rich areas within the pavement structure are detected or estimated, a hole is drilled using an electric drill, and then a removal device is installed in the drilled hole. The cylindrical cage skeleton can play a supporting role to ensure the structural strength of the pavement. The first guide layer can absorb and guide the moisture within the pavement structure so that the moisture is evenly distributed throughout the first guide layer, facilitating efficient absorption of the moisture by the water absorbent on the first guide layer. Compared with traditional natural evaporation, this method can timely and effectively eliminate moisture from the pavement structure, reducing water damage.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A device for removing moisture from a pavement structure, characterized in that: include: Cage frame (1), first guide layer (2) and water absorbent; The cage frame (1) is in the shape of a long column; the first guide layer (2) is coated on the outer periphery of the cage frame (1) and is used for absorbing water and guiding the water so that the water is evenly distributed throughout the first guide layer (2); the water absorbing agent is arranged on the first guide layer (2) to form a first water absorbing layer (3) for absorbing water; The cage frame (1) comprises a cylindrical body (10), a top cover (11) and a bottom support (12); the body (10) is enclosed by a plurality of first support columns (100); the top cover (11) is fixedly connected to the top end of the body (10), and the bottom support (12) is fixedly connected to the bottom end of the body (10); The cage frame (1) further comprises at least one second support column (13), the second support column (13) being located in the body (10); one end of the second support column (13) being fixedly connected to the top cover (11), and the other end being fixedly connected to the bottom support (12); At least one through hole (122) is provided on the base (12); the second support column (13) is wrapped with a second guide layer (4), and a water absorbent is arranged on the second guide layer (4) to form a second water absorption layer (5).

2. The device for removing moisture from a pavement structure according to claim 1, characterized in that: The first flow-guiding layer (2) comprises a first base layer (20) wrapped around the outer periphery of the cylinder cage frame (1) and a first surface layer (21) wrapped outside the first base layer (20), the first surface layer (21) is a hydrophilic flow-guiding non-woven fabric, and the water absorbent is arranged between the first base layer (20) and the first surface layer (21).

3. The device for removing moisture from a pavement structure according to claim 1, characterized in that: The first guide layer (2) is formed by a single layer of hydrophilic guide non-woven fabric wrapped around the outer periphery of the cylinder cage frame (1), and the water absorbent is arranged on a side of the first guide layer (2) facing the cylinder cage frame (1).

4. The device for removing moisture from a pavement structure according to claim 1, characterized in that: The water absorbent is a granular or fibrous high water absorbent resin, and the water absorbent is adhered to the first guide layer (2) through a hot melt adhesive process.

5. The device for removing moisture from a pavement structure according to claim 1, characterized in that: Both ends of the first guide layer (2) are provided with Velcro tapes, and the first guide layer (2) is locked to the cylinder cage frame (1) via the Velcro tapes.

6. The device for removing moisture from a pavement structure according to claim 1, characterized in that: A first annular groove (110) is provided around the center of the top cover (11), and a second annular groove (120) is provided around the center of the bottom bracket (12); one end of the first support column (100) is located in the first annular groove (110) and is fixed to the top cover (11) by bonding; the other end of the first support column (100) is located in the second annular groove (120) and is fixed to the bottom bracket (12) by bonding.

7. A method for removing moisture from a pavement structure, characterized in that: The following steps are involved: Drilling holes in a water-rich area of ​​the pavement structure to form holes for accommodating the cleaning device according to any one of claims 1 to 6; Level the hole bottom, fill the bottom of the hole with 3-5mm crushed stone and tamp it down; The cleaning device is placed, and after applying water-based epoxy resin glue on the sides of the top cover (11) and the bottom support (12), the cleaning device is placed into the hole.

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