阅读说明：本技术 一种道路桥梁裂缝修复固定装置及修复方法 (Fixing device and method for repairing road and bridge cracks ) 是由 王策 李钧 刘影 刘宇 信思源 沈义 于 2020-11-11 设计创作，主要内容包括：一种道路桥梁裂缝修复固定装置及修复方法,属于道路桥梁裂缝修复技术领域。一种道路桥梁裂缝修复固定装置；每个所述支撑装置包括底板、固定连接钉、X形钢筋、侧挡板；所述底板铺设在防水层上端,且底板的一端通过焊接固定连接在侧钢板上,底板的另一端通过焊接固定连接有侧挡板；所述X形钢筋通过焊接固定连接在底板、侧挡板、侧钢板上；所述固定连接钉的一部分穿过底板嵌入裂缝两侧的道路内,另一部分固定连接钉位于底板的上端；本发明设有活动装置,裂缝修补后,能通过两个侧钢板之间的缝隙防止路面二次开裂,而且两个侧钢板之间的缝隙能解决温差变化对路面的影响,避免当前裂缝附近的路面开裂,并且还能避免雨水对路基的侵蚀。(A fixing device and a repairing method for repairing cracks of a road and a bridge belong to the technical field of repairing cracks of the road and the bridge. A fixing device for repairing cracks of a road and bridge; each supporting device comprises a bottom plate, a fixed connecting nail, an X-shaped steel bar and a side baffle; the bottom plate is laid at the upper end of the waterproof layer, one end of the bottom plate is fixedly connected to the side steel plate through welding, and the other end of the bottom plate is fixedly connected with the side baffle through welding; the X-shaped steel bar is fixedly connected to the bottom plate, the side baffle plate and the side steel plate through welding; one part of the fixed connecting nail penetrates through the bottom plate and is embedded into the roads on two sides of the crack, and the other part of the fixed connecting nail is positioned at the upper end of the bottom plate; the movable device is arranged, so that after the crack is repaired, the secondary cracking of the road surface can be prevented through the gap between the two side steel plates, the influence of temperature difference change on the road surface can be avoided through the gap between the two side steel plates, the road surface cracking near the current crack is avoided, and the erosion of rainwater to the roadbed can also be avoided.)

1. The utility model provides a fixing device is restoreed to road and bridge crack which characterized in that: the concrete waterproof mortar comprises a scabbling layer (1), a concrete layer (2), a movable device (3), a cement mortar layer (4), a waterproof layer (5), two supporting devices (6), a cement concrete layer (7), a medium-particle asphalt layer (8) and a fine-particle asphalt layer (9); the movable device (3) is vertically arranged in the crack, the height of the fire movable device (3) is the same as the depth of the crack, and the bottom end of the movable device (3) is fixedly connected to the bottom surface of the crack; the concrete layer (2) is filled at the bottom of the crack, and the upper end of the concrete layer (2) is provided with a scabbling layer (1); a cement mortar layer (4) is arranged at the upper end of the scabbling layer (1); a waterproof layer (5) is arranged at the upper end of the cement mortar layer (4); a supporting device (6) is arranged at the upper end of the waterproof layer (5); the two supporting devices (6) are embedded into the roads at two sides of the crack; the cement concrete layer (7) is filled in the supporting device (6); the medium-particle asphalt layer (8) is arranged at the upper ends of the supporting device (6) and the cement concrete layer (7); the fine-particle asphalt layer (9) is arranged at the upper end of the medium-particle asphalt layer (8); the scabbling layer (1), the concrete layer (2), the cement mortar layer (4), the waterproof layer (5), the two supporting devices (6), the cement concrete layer (7), the medium-particle asphalt layer (8) and the fine-particle asphalt layer (9) are all arranged on two sides of the movable device (3);

the movable device (3) comprises a steel base plate (3-1), fixed steel bars (3-2), sponge blocks (3-5), filling materials (3-6), connecting blocks (3-8), rubber pads (3-12), connecting devices (3-13), two limiting blocks (3-3), two side steel plates (3-4), adhesives (3-9), two supporting blocks (3-11), four fixed rods (3-7) and a plurality of groups of movable plates (3-10); the steel backing plate (3-1) is paved at the bottom of the crack; one part of the fixed steel bar (3-2) penetrates through the steel backing plate (3-1) and is fixed at the bottom of the crack, and the other part of the fixed steel bar (3-2) is exposed out of the upper end of the steel backing plate (3-1); the two side steel plates (3-4) are symmetrically arranged at the upper end of the steel backing plate (3-1), and the lower ends of the opposite surfaces of the two side steel plates (3-4) are fixedly connected with corresponding limiting blocks (3-3); the limiting block (3-3) is provided with a hole (3-3-1), and the hole (3-3-1) is in sliding fit with the fixed steel bar (3-2); each group of movable plates (3-10) comprises two rotating plates, one end of each rotating plate is hinged with the corresponding side steel plate (3-4), and the opposite ends of the two rotating plates are connected through hinges; the sponge blocks (3-5) are connected between the two side steel plates (3-4) through bonding, and the plurality of movable plates (3-10) are wrapped by the sponge blocks (3-5); one end of each of the two supporting blocks (3-11) is fixedly connected with the upper end of the corresponding side steel plate (3-4) opposite surface; both ends of the rubber pads (3-12) are embedded into the two side steel plates (3-4) through hot melting, and the rubber pads (3-12) are positioned at the upper ends of the supporting plates (3-11); the four fixing rods (3-7) are fixedly connected to the outer sides of the two side steel plates (3-4) in a pairwise symmetrical mode, each fixing rod (3-7) is hollow, and at least two circular rings (3-7-1) are fixedly connected to the outer walls of the fixing rods (3-7); the connecting blocks (3-8) are fixedly connected in the hollow cavities of the fixing rods (3-7), filling materials (3-6) are arranged at one ends of the connecting blocks (3-8), adhesives (3-9) are arranged at the other ends of the connecting blocks (3-8), and the adhesives (3-9) are adhered to the corresponding side steel plates (3-4);

the connecting device (3-13) comprises two screw rods (3-13-1), two threaded cylinders (3-13-2) and a connecting sleeve (3-13-3); the two screw rods (3-13-1) are symmetrically and fixedly connected to the opposite surfaces of the side steel plates (3-4); the threaded cylinders (3-13-2) are connected to the corresponding screw rods (3-13-1) through threads; the connecting sleeves (3-13-3) are connected with the outer ends of the two threaded cylinders (3-13-2) through threads;

each supporting device (6) comprises a bottom plate (6-1), a fixed connecting nail (6-2), an X-shaped steel bar (6-3) and a side baffle (6-4); the bottom plate (6-1) is laid at the upper end of the waterproof layer (5), one end of the bottom plate (6-1) is fixedly connected to the side steel plate (3-4) through welding, and the other end of the bottom plate (6-1) is fixedly connected with the side baffle plate (6-4) through welding; the X-shaped steel bar (6-3) is fixedly connected to the bottom plate (6-1), the side baffle (6-4) and the side steel plate (3-4) through welding; one part of the fixed connecting nail (6-2) penetrates through the bottom plate (6-1) and is embedded into the roads at two sides of the crack, and the other part of the fixed connecting nail (6-2) is positioned at the upper end of the bottom plate (6-1).

2. The road and bridge crack repair fixture of claim 1, wherein: grooves (3-8-2) and filling holes (3-8-1) are symmetrically arranged on the connecting blocks (3-8); the groove (3-8-2) is positioned inside the connecting block (3-8); the filling material (3-6) passes through one pouring hole (3-8-1) and enters the groove (3-8-2); the adhesive (3-9) passes through the other pouring hole (3-8-1) and enters the other groove (3-8-2).

3. The road and bridge crack repair fixture of claim 2, wherein: the filling material (3-6) is concrete.

4. The road and bridge crack repair fixture of claim 2, wherein: the particle size of the medium-particle asphalt layer (8) is 19mm, and the particle size of the fine-particle asphalt layer (9) is 13.2 mm.

5. The road and bridge crack repair fixture of claim 4, wherein: and zinc coatings are arranged on the outer surfaces of the steel backing plate (3-1) and the side steel plate (3-4).

6. The road and bridge crack repair fixture of claim 4, wherein: the waterproof layer (5) is polymer modified asphalt waterproof paint.

7. The road and bridge crack repair fixture of claim 4, wherein: the distance between the two side steel plates (3-4) is 2-4 cm.

8. The method for repairing a crack repairing and fixing device of a road and bridge according to any one of claims 1 to 7, wherein: the repairing method comprises the following steps:

1) laying the steel backing plate (3-1) in the crack, and then penetrating a part of the fixed steel bar (3-2) into the ground bottom through the steel backing plate (3-1) by a pile driver;

2) filling materials (3-6) and adhesives (3-9) are respectively poured on two sides of connecting blocks (3-8) in the fixing rods (3-7), the fixing rods (3-7) are connected to corresponding side steel plates (3-4) through the adhesives (3-9), and finally the connecting parts of the fixing rods (3-7) and the side steel plates (3-4) are fixed through welding;

3) placing the side steel plate (3-4) on the steel backing plate (3-1), then rotating the two threaded cylinders (3-13-2), and then rotating the connecting sleeve (3-13-3) to connect the two threaded cylinders (3-13-2) through threads; then, concrete layers (2) are poured to the two sides of the side steel plates (3-4);

4) arranging a scabbling layer (1) at the upper end of the concrete layer (2), then pouring a cement mortar layer (4), and arranging a waterproof layer (5) at the upper end of the cement mortar layer (4);

5) placing two supporting devices (6) on two sides of the side steel plates (3-4) respectively, and then partially driving the fixed connecting nails (6-2) into the ground bottom through a pile driver;

6) pouring a cement concrete layer (7) on the bottom plate (6-1) and the side baffle plates (6-4), finally paving a medium-particle asphalt layer (8) on the cement concrete layer (7), and paving a fine-particle asphalt layer (9) on the upper end of the medium-particle asphalt layer (8);

7) finally, the connecting sleeve (3-13-3) and the threaded cylinder (3-13-2) are rotated, the supporting rod (3-11) is fixed through welding, and the rubber gasket (3-12) is sealed at the upper ends of the two side steel plates (3-4) through hot melting.

Technical Field

The invention relates to a fixing device and a repairing method for repairing cracks of a road and bridge, and belongs to the technical field of repairing cracks of road and bridge.

Background

In the north or in areas with large day-night temperature difference, the pavement of a road and a bridge is easy to break due to overlarge temperature change in the using process, and the existing repairing technology is filled by concrete, asphalt, waterproof materials and the like in the pavement repairing process, so that the temporary solution and the permanent solution are treated, the secondary cracking of the pavement is easy to cause, and the service life is influenced.

Disclosure of Invention

The invention aims to provide a fixing device and a method for repairing cracks of a road and bridge in order to solve the problem that the road surface cracks repeatedly due to expansion with heat and contraction with cold in areas with large temperature changes day and night or in four seasons.

The invention achieves the purpose, and adopts the following technical scheme:

a fixing device for repairing cracks of a road and bridge comprises a scabbling layer, a concrete layer, a movable device, a cement mortar layer, a waterproof layer, two supporting devices, a cement concrete layer, a medium-particle asphalt layer and a fine-particle asphalt layer; the movable device is vertically arranged in the crack, the height of the fire movable device is the same as the depth of the crack, and the bottom end of the movable device is fixedly connected to the bottom surface of the crack; the concrete layer is filled at the bottom of the crack, and a scabbling layer is arranged at the upper end of the concrete layer; a cement mortar layer is arranged at the upper end of the scabbling layer; a waterproof layer is arranged at the upper end of the cement mortar layer; a supporting device is arranged at the upper end of the waterproof layer; the two supporting devices are embedded into roads on two sides of the crack; the cement concrete layer is filled in the supporting device; the medium-particle asphalt layer is arranged at the upper ends of the supporting device and the cement concrete layer; the fine-particle asphalt layer is arranged at the upper end of the medium-particle asphalt layer; the scabbling layer, the concrete layer, the cement mortar layer, the waterproof layer, the two supporting devices, the cement concrete layer, the medium-particle asphalt layer and the fine-particle asphalt layer are all arranged on two sides of the movable device;

the movable device comprises a steel base plate, fixed steel bars, a sponge block, a filling material, a connecting block, a rubber pad, two limiting blocks of the connecting device, two side steel plates, an adhesive, two supporting blocks, four fixed rods and a plurality of groups of movable plates; the steel base plate is laid at the bottom of the crack; one part of the fixed steel bar penetrates through the steel backing plate and is fixed at the bottom of the crack, and the other part of the fixed steel bar is exposed out of the upper end of the steel backing plate; the two side steel plates are symmetrically arranged at the upper end of the steel backing plate, and the lower ends of the opposite surfaces of the two side steel plates are fixedly connected with corresponding limiting blocks; the limiting block is provided with a hole which is in sliding fit with the fixed steel bar; each group of movable plates comprises two rotating plates, one end of each rotating plate is hinged with the corresponding side steel plate, and the opposite ends of the two rotating plates are connected through hinges; the sponge block is connected between the two side steel plates in an adhering mode and wraps the movable plates; one end of each of the two supporting blocks is fixedly connected with the upper end of the corresponding side steel plate opposite surface; two ends of the rubber pad are embedded into the two side steel plates through hot melting, and the rubber pad is positioned at the upper end of the supporting plate; the four fixing rods are fixedly connected to the outer sides of the two side steel plates in a pairwise symmetrical mode, each fixing rod is hollow, and at least two circular rings are fixedly connected to the outer walls of the fixing rods; the connecting block is fixedly connected in a hollow cavity of the fixing rod, a filling material is arranged at one end of the connecting block, an adhesive is arranged at the other end of the connecting block, and the adhesive is adhered to the corresponding side steel plate;

the connecting device comprises two screw rods, two thread cylinders and a connecting sleeve; the two screws are symmetrically and fixedly connected to opposite surfaces of the side steel plates; the threaded cylinders are connected to the corresponding screw rods through threads; the connecting sleeve is connected to the outer ends of the two threaded cylinders through threads;

each supporting device comprises a bottom plate, a fixed connecting nail, an X-shaped steel bar and a side baffle; the bottom plate is laid at the upper end of the waterproof layer, one end of the bottom plate is fixedly connected to the side steel plate through welding, and the other end of the bottom plate is fixedly connected with the side baffle through welding; the X-shaped steel bar is fixedly connected to the bottom plate, the side baffle plate and the side steel plate through welding; one part of the fixed connecting nail penetrates through the bottom plate and is embedded into the roads on two sides of the crack, and the other part of the fixed connecting nail is positioned at the upper end of the bottom plate;

a repairing method of a fixing device for repairing cracks of a road and bridge comprises the following steps:

1) laying a steel base plate in the crack, and then penetrating a part of fixed steel bars into the ground bottom through the steel base plate by a pile driver;

2) filling a filling material and an adhesive to two sides of a connecting block in the fixing rod respectively, connecting the fixing rod to the corresponding side steel plate through the adhesive, and finally fixing the connecting position of the fixing rod and the side steel plate through welding;

3) placing the side steel plate on the steel base plate, then rotating the two threaded cylinders, and then rotating the connecting sleeve to connect the two threaded cylinders through threads; then, concrete layers are poured on two sides of the side steel plates;

4) arranging a scabbling layer at the upper end of the concrete layer, then pouring a cement mortar layer, and arranging a waterproof layer at the upper end of the cement mortar layer;

5) placing the two supporting devices on two sides of the side steel plate respectively, and then partially driving the fixed connecting nails into the ground bottom through a pile driver;

6) pouring cement concrete layers on the bottom plate and the side baffles, finally paving a medium-particle asphalt layer on the cement concrete layers, and paving a fine-particle asphalt layer on the upper end of the medium-particle asphalt layer;

7) and finally, rotating the connecting sleeve and the threaded cylinder, fixing the supporting rod by welding, and sealing the rubber gasket at the upper ends of the two side steel plates by hot melting.

Compared with the prior art, the invention has the beneficial effects that: the movable device is arranged, so that after the crack is repaired, the secondary cracking of the road surface can be prevented through the gap between the two side steel plates, the influence of temperature difference change on the road surface can be avoided through the gap between the two side steel plates, the road surface cracking near the current crack is avoided, and the erosion of rainwater to the roadbed can also be avoided.

Drawings

FIG. 1 is a front view of a road and bridge crack healing fixture of the present invention;

FIG. 2 is a front view of a mobile device of a road and bridge crack healing fixture of the present invention;

FIG. 3 is a top view of a stop block of the fixing device for repairing cracks of a road and bridge of the present invention;

FIG. 4 is a schematic structural view of a fixing rod of the fixing device for repairing cracks of a road and bridge according to the present invention;

FIG. 5 is a schematic structural view of a connecting block of the fixing device for repairing cracks of a road and bridge according to the present invention;

FIG. 6 is a front view of a support device of a road and bridge crack repair fixture of the present invention;

FIG. 7 is a front view of a connecting device of a road bridge crack repair fixture of the present invention.

Detailed Description

The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the invention, rather than all embodiments, and all other embodiments obtained by those skilled in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.

The first embodiment is as follows: as shown in fig. 1 to 7, the present embodiment describes a fixing device for repairing a crack of a road and a bridge, which includes a scabbed layer 1, a concrete layer 2, a movable device 3, a cement mortar layer 4, a waterproof layer 5, two supporting devices 6, a cement concrete layer 7, a medium-particle asphalt layer 8, and a fine-particle asphalt layer 9; the movable device 3 is vertically arranged in the crack, the height of the fire movable device 3 is the same as the depth of the crack, and the bottom end of the movable device 3 is fixedly connected to the bottom surface of the crack; the concrete layer 2 is filled at the bottom of the crack, and the upper end of the concrete layer 2 is provided with a scabbling layer 1; the upper end of the scabbling layer 1 is provided with a cement mortar layer 4; the upper end of the cement mortar layer 4 is provided with a waterproof layer 5; a supporting device 6 is arranged at the upper end of the waterproof layer 5; the two supporting devices 6 are embedded in the roads at two sides of the crack; the cement concrete layer 7 is filled in the supporting device 6; the medium-particle asphalt layer 8 is arranged at the upper ends of the supporting device 6 and the cement concrete layer 7; the fine-particle asphalt layer 9 is arranged at the upper end of the medium-particle asphalt layer 8; the scabbling layer 1, the concrete layer 2, the cement mortar layer 4, the waterproof layer 5, the two supporting devices 6, the cement concrete layer 7, the medium-particle asphalt layer 8 and the fine-particle asphalt layer 9 are all arranged on two sides of the movable device 3;

the movable device 3 comprises a steel base plate 3-1, fixed steel bars 3-2, sponge blocks 3-5, filling materials 3-6, connecting blocks 3-8, rubber pads 3-12, a connecting device 3-13, two limiting blocks 3-3, two side steel plates 3-4, adhesives 3-9, two supporting blocks 3-11, four fixed rods 3-7 and a plurality of groups of movable plates 3-10; the steel backing plate 3-1 is paved at the bottom of the crack; one part of the fixed steel bar 3-2 penetrates through the steel backing plate 3-1 and is fixed at the bottom of the crack, and the other part of the fixed steel bar 3-2 is exposed out of the upper end of the steel backing plate 3-1; the two side steel plates 3-4 are symmetrically arranged at the upper end of the steel backing plate 3-1, and the lower ends of the opposite surfaces of the two side steel plates 3-4 are fixedly connected with corresponding limiting blocks 3-3; the limiting block 3-3 is provided with a hole 3-3-1, and the hole 3-3-1 is in sliding fit with the fixed steel bar 3-2; each set of the movable plates 3-10 comprises two rotating plates, one end of each rotating plate is hinged with the corresponding side steel plate 3-4, and the opposite ends of the two rotating plates are connected through hinges; the sponge blocks 3-5 are connected between the two side steel plates 3-4 through bonding, and the plurality of movable plates 3-10 are wrapped by the sponge blocks 3-5; one end of each of the two supporting blocks 3-11 is fixedly connected with the upper end of the corresponding side steel plate 3-4; both ends of the rubber pads 3-12 are embedded into the two side steel plates 3-4 through hot melting, and the rubber pads 3-12 are positioned at the upper ends of the supporting plates 3-11; the four fixing rods 3-7 are fixedly connected to the outer sides of the two side steel plates 3-4 in pairwise symmetry, each fixing rod 3-7 is hollow, and at least two circular rings 3-7-1 are fixedly connected to the outer walls of the fixing rods 3-7; the connecting blocks 3-8 are fixedly connected in the hollow cavities of the fixing rods 3-7, filling materials 3-6 are arranged at one ends of the connecting blocks 3-8, adhesives 3-9 are arranged at the other ends of the connecting blocks 3-8, and the adhesives 3-9 are adhered to the corresponding side steel plates 3-4; the adhesive 3-9 has the effects that the fixing rods 3-7 can be fixed in a welding and bonding mode, the connecting strength between the fixing rods 3-7 and the side steel plates 3-4 is increased, further the fixing rods 3-7 can better increase the tensile force between the side steel plates 3-4 and the concrete layer 2 and between the fixing rods 3-7 and the cement mortar layer 5, and the actual using effect of the concrete-cement mortar-filled concrete is prevented from being influenced by the fracture of the side steel plates 3-4 and the concrete layer 2 and between the fixing rods 3-4 and the cement mortar layer 5; the multiple groups of movable plates 3-10 limit the displacement distance between the two side steel plates 3-4, and the phenomenon that the upper end of the movable device 3 is too bumpy when a vehicle passes by due to the fact that the distance between the two side steel plates 3-4 is too large is avoided; the two supporting blocks 3-11 are used for supporting the rubber pads 3-12;

the connecting device 3-13 comprises two screw rods 3-13-1, two threaded cylinders 3-13-2 and a connecting sleeve 3-13-3; the two screw rods 3-13-1 are symmetrically and fixedly connected to the opposite surfaces of the side steel plates 3-4; the threaded cylinders 3-13-2 are connected to the corresponding screws 3-13-1 through threads; the connecting sleeve 3-13-3 is connected with the outer ends of the two threaded cylinders 3-13-2 through threads; the connecting device 3-13 has the function of preventing the two side steel plates 3-4 from moving oppositely when the two side steel plates 3-4 are used for pouring concrete, so that the distance between the two side steel plates 3-4 is too short, and the using effect of the device is further influenced;

each supporting device 6 comprises a bottom plate 6-1, a fixed connecting nail 6-2, an X-shaped steel bar 6-3 and a side baffle 6-4; the bottom plate 6-1 is laid at the upper end of the waterproof layer 5, one end of the bottom plate 6-1 is fixedly connected to the side steel plate 3-4 through welding, and the other end of the bottom plate 6-1 is fixedly connected with the side baffle 6-4 through welding; the X-shaped reinforcing steel bars 6-3 are fixedly connected to the bottom plate 6-1, the side baffle 6-4 and the side steel plate 3-4 through welding; one part of the fixed connecting nail 6-2 penetrates through the bottom plate 6-1 to be embedded into the roads on two sides of the crack, and the other part of the fixed connecting nail 6-2 is positioned at the upper end of the bottom plate 6-1.

The second embodiment is as follows: as shown in fig. 2, this embodiment is a further description of the first embodiment, the connecting block 3-8 is symmetrically provided with a groove 3-8-2 and a filling hole 3-8-1; the groove 3-8-2 is positioned inside the connecting block 3-8; the filling material 3-6 passes through one pouring hole 3-8-1 and enters the groove 3-8-2; the adhesive 3-9 passes through another pouring hole 3-8-1 and enters another groove 3-8-2. The tension between the filling materials 3-6 and the adhesive 3-9 and the connecting blocks 3-8 is increased, and the phenomenon that the contact points are easy to break and the using effect of the device is influenced due to the fact that the filling materials 3-6 and the adhesive 3-9 are only in contact with the surfaces of the connecting blocks 3-8 is avoided.

The third concrete implementation mode: as shown in fig. 1, this embodiment is a further description of the first embodiment, and the filling material 3-6 is concrete. Increasing the strength of the fixation rods 3-7.

The fourth concrete implementation mode: as shown in fig. 1, this embodiment is a further description of the first embodiment, in which the particle size of the medium-particle asphalt layer 8 is 19mm, and the particle size of the fine-particle asphalt layer 9 is 13.2 mm.

The fifth concrete implementation mode: as shown in fig. 2, this embodiment is a further description of the first embodiment, and the steel shim plate 3-1 and the side steel plates 3-4 are provided with zinc coatings on their outer surfaces. The corrosion resistance of the steel backing plate 3-1 and the side steel plate 3-4 is increased.

The sixth specific implementation mode: as shown in fig. 1, this embodiment is a description of a first embodiment, and the waterproof layer 5 is a polymer modified asphalt waterproof coating.

The seventh embodiment: as shown in FIG. 1, the present embodiment is a further description of the first embodiment, and the distance between the two side steel plates 3-4 is 2-4 cm. Avoid the gap too big, the noise is too big when leading to the vehicle to travel.

The specific implementation mode is eight: as shown in fig. 1 to 7, the present embodiment describes a method for repairing a fixing device for repairing a crack of a road and bridge, the method including the steps of:

1) laying the steel backing plate 3-1 in the crack, and then penetrating a part of the fixed steel bars 3-2 into the ground bottom through the steel backing plate 3-1 by a pile driver;

2) respectively pouring filling materials 3-6 and adhesives 3-9 into two sides of connecting blocks 3-8 in the fixing rods 3-7, connecting the fixing rods 3-7 to the corresponding side steel plates 3-4 through the adhesives 3-9, and finally fixing the connecting parts of the fixing rods 3-7 and the side steel plates 3-4 through welding;

3) placing the side steel plate 3-4 on the steel backing plate 3-1, then rotating the two threaded cylinders 3-13-2, and then rotating the connecting sleeves 3-13-3 to connect the two threaded cylinders 3-13-2 through threads; then, pouring concrete layers 2 to the two sides of the side steel plates 3-4;

4) arranging a scabbling layer 1 at the upper end of a concrete layer 2, then pouring a cement mortar layer 4, and arranging a waterproof layer 5 at the upper end of the cement mortar layer 4;

5) placing the two supporting devices 6 on two sides of the side steel plates 3-4 respectively, and then partially driving the fixed connecting nails 6-2 into the ground bottom through a pile driver;

6) pouring a cement concrete layer 7 on the bottom plate 6-1 and the side baffle 6-4, finally paving a medium-particle asphalt layer 8 on the cement concrete layer 7, and paving a fine-particle asphalt layer 9 on the upper end of the medium-particle asphalt layer 8;

7) finally, the connecting sleeve 3-13-3 and the threaded cylinder 3-13-2 are rotated, the supporting rod 3-11 is fixed through welding, and the rubber pad 3-12 is sealed at the upper ends of the two side steel plates 3-4 through hot melting; the two threaded cylinders 3-13-2 are moved to be close to the corresponding side steel plates 3-4 from the positions shown in figure 2, and further a gap is reserved between the two threaded rods 3-13-1, so that the two side steel plates 3-4 can move oppositely when being subjected to external force.

The working principle of the invention is as follows: when the temperature difference of the pavement is changed rapidly, the concrete layers 2, the cement mortar layers 4, the waterproof layers 5, the two supporting devices 6, the cement concrete layers 7, the medium-particle asphalt layers 8 and the fine-particle asphalt layers 9 at the two ends of the side steel plates 3-4 move oppositely or reversely to the direction of the side steel plates 3-4, so that the two side steel plates 3-4 are pushed to slide, the gap between the two side steel plates 3-4 is reduced or enlarged, the condition that the pavement is cracked due to expansion or contraction caused by thermal expansion and cold contraction of the pavement is buffered, the secondary cracking of the repaired pavement is avoided, and the change caused by thermal expansion and cold contraction of the pavement around the crack can be solved by moving the gap between the two side steel plates 3-4, so that the condition that the pavement is cracked is reduced; the device is provided with a medium-particle asphalt layer 8 and a fine-particle asphalt layer 9, so that rainwater can be reduced from permeating into the lower end of the pavement, and the waterproof layer 5 is further arranged at the lower end of the supporting device 6, so that rainwater can be further prevented from permeating; the supporting device 6 is also internally provided with X-shaped steel bars 6-3 for assisting in supporting the medium-particle asphalt layer 8 and the fine-particle asphalt layer 9, so that the problem that the strength of the cement concrete layer 7 is insufficient to influence the service life of the medium-particle asphalt layer 8 and the service life of the fine-particle asphalt layer 9 are avoided; rubber pads 3-12 are arranged at the upper ends of the two side steel plates 3-4, rainwater can be prevented from entering the movable device 3 through a gap between the two side steel plates 3-4, meanwhile, sponge blocks 3-5 are further arranged on the movable plates 3-10, the penetrated rainwater can be adsorbed, the sponge blocks 3-5 can reduce noise, and the noise generated by vibration of air in the gap between the two side steel plates 3-4 after a vehicle passes through the upper end of the movable device 3 is reduced; the rubber pads 3-12 can be maintained and replaced regularly, the occurrence of rain leakage is reduced, and the replacement and maintenance cost is low and convenient.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.