CN116536993A - Airport pavement broken board repairing method - Google Patents
Airport pavement broken board repairing method Download PDFInfo
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- CN116536993A CN116536993A CN202310555145.7A CN202310555145A CN116536993A CN 116536993 A CN116536993 A CN 116536993A CN 202310555145 A CN202310555145 A CN 202310555145A CN 116536993 A CN116536993 A CN 116536993A
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- 239000011248 coating agent Substances 0.000 claims abstract description 4
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/10—Coherent pavings made in situ made of road-metal and binders of road-metal and cement or like binders
- E01C7/14—Concrete paving
- E01C7/147—Repairing concrete pavings, e.g. joining cracked road sections by dowels, applying a new concrete covering
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
- E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/42—Machines for imparting a smooth finish to freshly-laid paving courses other than by rolling, tamping or vibrating
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/52—Apparatus for laying individual preformed surfacing elements, e.g. kerbstones
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/12—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Road Repair (AREA)
Abstract
A method for repairing an airport pavement broken plate comprises the following steps: s1, chiseling a damaged old road surface and cleaning the chiseled surface; s2, coating waterproof adhesive on the broken and cleaned road plate; s3, filling a composite material containing reinforcing particles and a high polymer resin material as a leveling layer; s4, installing the prefabricated high polymer composite material plate into a road plate bin needing to be replaced. S5, adjusting the flatness, and controlling the height difference of the adjacent road plates within a set range; s6, standing and solidifying, and then opening for use. The invention has the advantages that: the airport pavement broken board repairing method can improve the surface condition of the pavement, properly prolong the service life of the pavement, get rid of the self limit of the cement concrete material, radically solve the problem of diseases generated by the cement concrete material in the airport application, keep the integrity of the cement concrete pavement, ensure high bonding strength of new and old pavement, adopt a prefabricated installation mode, realize quick installation and less equipment of entering staff, and reduce the interference to the airport operation.
Description
Technical Field
The invention relates to the technical field of road pavement, in particular to a method for repairing an airport pavement broken plate.
Background
After long-term use, the cement concrete pavement slab commonly adopted in the domestic airport is inevitably broken, angle, edge and crack and other diseases, on the other hand, cement concrete is a porous material, and the phenomenon of ice and snow freeze thawing in winter in northern areas can cause the peeling and pitting of the concrete surface, and the fallen stone particles can cause serious influence on the operation safety and economy of the airport, so that the old cement concrete pavement slab which cannot meet the normal use requirements of the airport is required to be maintained and replaced. At present, the conventional repairing method of the cement concrete pavement slab of the airport comprises the steps of additionally paving asphalt concrete, chiseling out old pavement slabs, then casting and re-paving cement concrete or polymer concrete pavement slabs in situ, integrally replacing cement concrete prefabricated pavement slabs and the like.
However, the above measures have certain problems. For example, asphalt concrete paving schemes, asphalt concrete paving layers are easy to generate diseases such as rutting, pushing and the like, and the operation safety of an airplane is influenced; if the scheme is adopted, the whole layer of the cement concrete road slab must be entirely chiseled to a semi-rigid roadbed, the construction period is long, the number of entering personnel, mechanical equipment and materials is large, the waste residues are large, and the construction and operation safety of an airport without stopping navigation are not facilitated; the cement concrete prefabricated road slab scheme can only improve the road slab surface condition in a short period, still can not get rid of the limit of cement concrete materials, can not solve the disease problem that the cement concrete materials produce in the airport application from the root, and destroyed the integrality of cement concrete road slab, new boss subsides dislocation, joint strength all have certain not enough. In addition, airport pavement slab repair is more stringent in terms of repair time, access personnel and equipment, and at a minimum, rapid repair can be accomplished in the shortest time, by the least personnel and by the least equipment, and particularly for military airports, the requirements for rapidity and unmanned are more needed. However, the existing airport pavement broken board repairing method cannot completely meet the above requirements.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the airport pavement slab repairing method which can keep the integrity of the cement concrete pavement slab, has high bonding strength of the new pavement slab and the old pavement slab and can realize quick repair.
The technical scheme adopted for solving the technical problems is as follows: the airport pavement broken board repairing method is characterized by comprising the following steps of:
s1, chiseling a damaged old road surface to a certain depth and cleaning the chiseled surface;
s2, coating waterproof adhesive on the broken and cleaned road plate;
s3, filling a composite material containing reinforcing particles and a high polymer resin material as a leveling layer;
s4, mounting the prefabricated high polymer composite material plate into a road plate bin needing to be replaced;
s5, adjusting the flatness, and controlling the height difference of the adjacent road plates within a set range;
s6, standing and solidifying, and then opening for use.
Preferably, before step S1, the foundation condition of the broken road plate is measured, if the foundation has a void phenomenon, the foundation is reinforced by adopting a drilling pile driving mode after step S1, and if the foundation has no void phenomenon, the process proceeds to step S2. Usually, a deflection meter is adopted to measure the basic condition of the fracture road plate, and the acquired data are calculated to obtain a detailed repair drawing.
Preferably, in step S1, the pavement slab is cut down along the slab seam by using a cutting machine according to the pavement slab damage condition and design requirement, and the cutting depth is the chiseling depth, so that the combination original state of the old pavement slab and the foundation is kept as much as possible, i.e. a certain original pavement slab thickness is kept. Therefore, the repairing device does not need to be integrally dug and replaced during repairing, can keep partial old road plates as much as possible, protects inherent stability and compactness between the old road plates and the foundation, and reduces waste slag and resource waste.
Further preferably, in step S1, the old road surface is removed by milling with a milling machine, and each milling is performed for 1-10 cm. The milling process is adopted to ensure that the surface of the milled road plate is not damaged by extra loosening, and meanwhile, the surface of the milled road plate is kept flat and orderly.
The waterproof adhesive may be made of a variety of different materials, and preferably, in step S2, the waterproof adhesive is made of polyester resin or epoxy resin or polyurethane resin or acrylic resin or vinyl resin.
Further preferably, after step S2, the edges of the adjacent roadway slab bins are filled with the inflatable strips, and after repair is completed, the inflatable strips are punctured. The purpose of installing the inflatable strip is to prevent foreign matters from entering the expansion joint of the road plate during road plate maintenance, and the phenomenon of top plate damage after temperature change is caused.
As a preferable scheme, after the step S2, a cushion seat is arranged at the preset position of the old road plate, the upper surface of the cushion seat is positioned on the same horizontal plane, the distance between the upper surface of the cushion seat and the original road surface is equal to the thickness of the prefabricated high polymer composite material plate, and a cushion seat area matched with the cushion seat is arranged at the bottom of the high polymer composite material plate. The process is used for assisting the high-molecular composite material plate to be positioned at high and low levels and horizontally, and the process can be not implemented if the positioning is difficult.
Further preferably, the reinforced particles in the step S3 are stone materials, the polymer resin material is polyester, epoxy resin, polyurethane, furan resin or phenolic resin, the solidification time of the polymer resin material is less than or equal to 120 minutes, and the leveling layer after casting molding meets the compression strength of more than or equal to 28MPa and the flexural tensile strength of more than or equal to 18MPa.
Further preferably, the polymer composite board in step S4 includes reinforcing particles and a polymer resin material, the reinforcing particles adopt stone, the polymer resin material adopts polyester, epoxy resin, polyurethane, furan resin or phenolic resin, and the polymer composite board satisfies the strength requirement: the compressive strength is more than or equal to 30MPa, and the flexural tensile strength is more than or equal to 20MPa.
In order to improve the structural strength of the polymer composite material plate, a single-layer or double-layer reinforcing steel mesh is arranged in the polymer composite material plate.
Further preferably, the diameter of the reinforcing steel bars adopted by the reinforcing steel bar net sheet is 6-20 mm, and the arrangement interval is 10-30 cm.
In order to improve the plane stretching performance, the inside of the polymer composite material plate is also provided with grid cloth arranged above the reinforcing steel mesh.
Further preferably, the mesh cloth is 1-3 layers, the mesh cloth is lower than the top surface of the polymer composite material plate, and the distance is 1-3 cm.
Further preferably, the mesh cloth includes, but is not limited to, a glass fiber cloth or a grid cloth, wherein the glass fiber cloth has a mass of 300 to 900g/m2 and a mesh size of 5 to 10mm.
Further preferably, the polymer composite board is subjected to surface anti-slip treatment in advance before being mounted. The treatment method comprises the steps of spraying the anti-frosting, napping, grooving and the like, wherein the friction coefficient is determined according to the position of the road plate, and the parking apron and the communication channel are more than or equal to 0.45; the take-off and landing runway is more than or equal to 0.75.
In order to enable the prefabricated polymer composite material plate to be combined with the leveling layer more tightly, a combining groove is formed in the bottom of the polymer composite material plate.
Further preferably, the bonding grooves adopt a saw-tooth-shaped long rectangular section or a trapezoid section, and the bonding grooves are arranged in parallel.
Further preferably, the adjacent bonding grooves are arranged at a pitch of 1 to 10cm and a depth of 3 to 10mm.
In order to transport the prefabricated polymer composite material plate to an installation site, a hoisting hole is formed in the polymer composite material plate, and hoisting pieces are embedded in the hoisting hole. The hoisting pieces can be in the forms of round or 8-shaped steel bars, threaded embedded pieces and the like, the depth is 5-12 cm, and 2-12 pieces, preferably 8 pieces, of each road plate are used.
Further preferably, the prefabricated polymer composite material plate is provided with an exhaust hole. After the vent holes are formed, when the high polymer composite material plate is placed on the leveling layer, air between the high polymer composite material plate and the leveling layer can be discharged from the vent holes, and an air interlayer is avoided.
Further preferably, the vent holes are in a circular hole shape, the inner diameter is 2-10 cm, and each 1-2 m of the prefabricated polymer composite material plate 2 1 exhaust hole is arranged, and the number of the whole precast slabs is preferably 1-10.
Further preferably, in step S4, the prefabricated polymer composite board is installed in the road board cabin to be replaced in a sliding or direct hoisting manner, and after the installation is completed, the hoisting hole and the exhaust hole are filled with resin glue solution.
Compared with the prior art, the invention has the advantages that: according to the airport pavement broken plate repairing method, after the pavement plate is broken and cleaned, waterproof adhesive is coated, a leveling layer made of composite materials is filled in a pavement plate bin to be replaced, then a prefabricated high-polymer composite material plate is installed in the pavement plate bin, and is subjected to flatness adjustment, standing and maintenance and then is opened for use, so that the surface condition of the pavement plate can be improved. Under extreme conditions, if the method is adopted, the manufacture of the polymer composite board can be completed within 2 hours, the broken board repair construction can be completed within 2 hours, and the polymer composite board can be delivered again within 4 hours.
Drawings
FIG. 1 is a cross-sectional view of a preformed polymeric composite sheet according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a polymer composite board according to an embodiment of the present invention;
FIG. 3 is a schematic view of another structure of a polymer composite board according to an embodiment of the present invention;
FIG. 4 is a schematic view of the mounting structure of a leveling layer and an inflatable strip according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a matching structure of a polymer composite board and a leveling layer according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of the airport broken board repairing completion according to the embodiment of the invention.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1 to 6, the airport pavement slab repairing method of the present embodiment is characterized by comprising the steps of:
s1, chiseling the damaged old road surface 1 to a certain depth and cleaning the chiseled surface;
s2, coating a waterproof adhesive 2 on the broken and cleaned road plate;
s3, filling a composite material containing reinforcing particles and a high polymer resin material as a leveling layer 3;
s4, installing the prefabricated high polymer composite material plate 4 into a road plate bin 5 which needs to be replaced;
s5, adjusting the flatness, and controlling the height difference of the adjacent road plates within a set range;
s6, standing and solidifying, and then opening for use.
Before step S1, measuring the basic condition of a broken road plate by adopting a deflection meter, acquiring data, calculating to obtain a detailed repair drawing, and reinforcing by adopting a drilling pile driving mode after breaking the broken road plate if the foundation still has a void phenomenon, wherein a void part drilling pile is a high-pressure jet grouting pile or a drilling filling pile; if no void phenomenon exists, the next procedure is directly carried out, namely step S2.
In the step S1, the thickness of the road plate in the area to be maintained is assumed to be 30-40 cm, and 40cm is taken as an example for explanation; and (5) cutting the damaged road plate downwards along the plate seam by adopting a cutting machine, wherein the cutting depth is the chiseling depth. The old road surface can be chiseled by adopting a milling or breaking hammer breaking mode, the chiseling depth can be 5-35 cm, namely the thickness of the old road plate 1 is at least kept 5cm, the old road plate is not required to be integrally dug and replaced during repairing, and the inherent stability and compactness between the old road plate and a foundation are protected. Because the macromolecule composite material based on repairing has high strength, better water loss resistance, oil stain resistance and freeze thawing resistance, partial old road plates 1 can be reserved as much as possible, and waste slag and resource waste are reduced. In the step S1, the old road surface is preferentially removed by adopting a milling machine milling mode, each time of milling is 1-10 cm, and the surface of the road plate cannot be loosely damaged by adopting a milling process. The milling machine adopts the shallow layer milling mode to chisel away the time configurable mud motor sweeper, carries out mud and cleans, the stoving mode of blowing more environmental protection, reduces mud pollution, ensures the tie coat quality and reduces solid construction waste production, realizes mechanized automatic operation, and is efficient.
In step S2, after the old road board 1 is cleaned, the broken and cleaned road board is coated with the waterproof adhesive 2. The waterproof adhesive 2 may be various waterproof adhesives in the prior art, such as polyester resin or epoxy resin or urethane resin or acrylic resin or vinyl resin, and polyester resin is preferably used.
After the waterproof adhesive 2 is coated, the edges of the adjacent road slab bins 5 are filled with the inflatable strips 6, and after repair is finished, the inflatable strips 6 are punctured. The purpose of installing the inflatable strip 6 is to prevent foreign matters from entering the expansion joint of the road plate during maintenance of the road plate, and to cause the phenomenon of top plate damage after temperature change. In this embodiment, the thickness of the inflatable strip 6 is 1-10 mm, and the height is equal to the total thickness of the chisel in the scheme.
In addition, after step S2, a pad (not shown) may be installed at a predetermined position of the old pavement slab 1, and the upper surface of the pad is on the same horizontal plane, and the distance between the upper surface of the pad and the original pavement is equal to the thickness of the prefabricated polymer composite material slab 4, for example, 15cm. Typically, the shoe is a cylindrical metal shoe, and the material includes, but is not limited to, cast iron, stainless steel, etc., with a height of 5cm and an outer diameter of 2-6 cm. The process is used for assisting the high-molecular composite material plate to be positioned at high and low levels and horizontally, and the process can be not implemented if the positioning is difficult. As shown in fig. 3, in the manner of mounting the shoe, the shoe region 46 at the bottom of the prefabricated polymer composite panel 3 is fitted with the shoe, and the shoe region 46 is preferably arranged in a rectangular shape.
The leveling layer 3 of the embodiment is formed by casting composite materials on site, so that the base concrete of the new road plate and the base concrete of the old road plate 1 can be fully and effectively connected to form a whole, and the thickness of the leveling layer 3 is preferably 5cm. The composite material forming the leveling layer 3 comprises reinforced particles and a polymer resin material, wherein the particle reinforced material can adopt stones such as natural gravel or pebbles, the polymer resin material adopts polyester or epoxy resin or polyurethane or furan resin or phenolic resin, the setting time of the polymer resin material is less than or equal to 120 minutes, and the cast polymer composite material plate 4 meets the compression strength of more than or equal to 28MPa and the flexural tensile strength of more than or equal to 18MPa. Other suitable polymeric materials may be used in addition.
The polymeric composite sheet 4 of this example was prefabricated in situ prior to 2 hours of use and included a process sequence to complete the surface function.
The thickness of the prefabricated polymer composite material plate 4 of this embodiment is 10-40 cm, and the polymer composite material plate 4 satisfies the strength requirement: the compressive strength is more than or equal to 30MPa, the flexural tensile strength is more than or equal to 20MPa, and the optimal selection is 15cm according to the field measurement condition. The polymer composite board 4 comprises reinforcing particles and a polymer resin material, wherein the reinforcing particles adopt stones such as natural gravel or pebbles, and the polymer resin material adopts polyester, epoxy resin, polyurethane, furan resin or phenolic resin. The polymer composite material plate 4 has a single layer or double layers of reinforcing mesh 41 inside. The reinforcing steel mesh 41 adopts reinforcing steel bars with diameters of 6-20 mm and arrangement intervals of 10-30 cm. In this embodiment, a mesh 42 is installed above the reinforcing mesh 41, and the mesh 42 is used to improve the plane stretching performance. The mesh cloth 42 can be 1-3 layers, 1-3 cm lower than the top surface of the precast slab, includingBut not limited to glass fiber cloth or grid cloth, wherein the mass of the glass fiber cloth is 300-900 g/m 2 The mesh size of the grid cloth is 5-10 mm.
The polymer composite plate 4 is formed with a coupling groove 43 at the bottom thereof. The bonding grooves 43 are of a zigzag rectangular cross section or a trapezoid cross section, in this embodiment, the bonding grooves 43 are arranged in parallel at a pitch of 1-10 cm, the depth of the bonding grooves 43 is 3-10 mm, and the bonding grooves 43 are not provided in the pad area 46. The polymer composite material plate 4 is provided with a lifting hole 44 and an exhaust hole 45, and a lifting piece (not shown) is pre-buried in the lifting hole 44. The hoisting pieces can be in the forms of round or 8-shaped steel bars, threaded embedded pieces and the like, the depth is 5-12 cm, and 2-12 pieces, preferably 8 pieces, of each road plate are adopted; the exhaust holes 45 are circular holes with an inner diameter of 2-10 cm and each 1-2 m of the prefabricated plate 2 1 exhaust hole is arranged, and the number of the whole plate is preferably 1-10.
After the prefabrication of the polymer composite board 4 is completed, the surface anti-slip treatment is required. The treatment method comprises the steps of spraying the anti-frosting, napping, grooving and the like, wherein the friction coefficient is determined according to the position of the road plate, and the parking apron and the communication channel are more than or equal to 0.45; the take-off and landing runway is more than or equal to 0.75.
During installation, the prefabricated high polymer composite material plates 4 are installed in the road plate bin 5 which needs to be replaced in a rail sliding or direct hoisting mode, flatness is adjusted through special pressing equipment, and the height difference of the adjacent road plates 7 is controlled to be less than or equal to 2mm. After the installation, the lifting hole 44 and the exhaust hole 45 are filled and sealed with resin glue solution, and the resin glue solution is left for 2 hours for open use. The broken plates which are required to be maintained and replaced in a common airport are continuous adjacent road plates, if continuous replacement is involved, measurement and positioning are firstly carried out, then an erection rail is adopted, so that a plurality of prefabricated new road plates can be continuously transported in place, and the maintenance is faster and more convenient.
The foregoing is merely illustrative of the preferred embodiments of this invention, and it will be appreciated by those skilled in the art that variations and modifications of this invention can be made without departing from the principles of the invention, and these are considered to be within the scope of the invention.
Claims (16)
1. The airport pavement broken board repairing method is characterized by comprising the following steps of:
s1, chiseling a damaged old road surface (1) to a certain depth and cleaning the chiseled surface;
s2, coating waterproof adhesive (2) on the broken and cleaned road plate;
s3, filling a composite material containing reinforcing particles and a high polymer resin material as a leveling layer (3);
s4, installing the prefabricated high polymer composite material plate (4) into a road plate bin (5) which needs to be replaced;
s5, adjusting the flatness, and controlling the height difference of the adjacent road plates within a set range;
s6, standing and solidifying, and then opening for use.
2. The airfield pavement slab repair method of claim 1, wherein: before step S1, measuring the foundation condition of the broken road plate, if the foundation has the phenomenon of void, reinforcing by adopting a drilling and piling mode after step S1, and if the foundation does not have the phenomenon of void, entering step S2.
3. The airfield pavement slab repair method of claim 1, wherein: in the step S1, the old road surface is chiseled by adopting a milling machine milling mode, and each milling is carried out for 1-10 cm, or a cutting machine is adopted to cut the damaged road plate downwards along the plate seam, wherein the cutting depth is the chiseling depth, and the old road plate (1) is kept for at least 5cm.
4. The airfield pavement slab repair method of claim 1, wherein: in step S2, the waterproof adhesive (2) is polyester resin, epoxy resin, polyurethane resin, acrylic resin, or vinyl resin.
5. The airfield pavement slab repair method of claim 1, wherein: after the step S2, the edges of the adjacent road slab bins (5) are filled with the inflatable strips (6), and after the repairing is finished, the inflatable strips (6) are punctured.
6. The airfield pavement slab repair method of claim 1, wherein: after the step S2, a cushion is arranged at the preset position of the old road plate (1), the upper surfaces of the cushion are positioned on the same horizontal plane, the distance between the upper surfaces of the cushion and the original road surface is equal to the thickness of the prefabricated high polymer composite material plate (4), and a cushion area (46) matched with the cushion is arranged at the bottom of the high polymer composite material plate.
7. The airfield pavement slab repair method of claim 1, wherein: the reinforced particles in the step S3 are stone materials, the polymer resin material is polyester, epoxy resin, polyurethane, furan resin or phenolic resin, the solidification time of the polymer resin material is less than or equal to 120 minutes, and the leveling layer (3) after casting molding meets the compression strength of more than or equal to 28MPa and the flexural tensile strength of more than or equal to 18MPa.
8. The airfield pavement slab repair method of claim 1, wherein: the polymer composite material board (4) in the step S4 comprises reinforcing particles and polymer resin materials, wherein the reinforcing particles adopt stones, the polymer resin materials adopt polyester, epoxy resin, polyurethane, furan resin or phenolic resin, and the polymer composite material board (4) meets the strength requirements as follows: the compressive strength is more than or equal to 30MPa, and the flexural tensile strength is more than or equal to 20MPa.
9. The airfield pavement slab repair method of claim 8, wherein: the inside of the polymer composite material plate (4) is provided with a single-layer or double-layer reinforcing steel mesh (41).
10. The airfield pavement slab repair method of claim 9, wherein: the inside of the polymer composite material plate (4) is also provided with a grid cloth (42) arranged above the reinforcing mesh (41).
11. The airfield pavement slab repair method of claim 8, wherein: the macromolecule composite material plate (4) is subjected to surface anti-skid treatment in advance before being installed.
12. The airfield pavement slab repair method of claim 1, wherein: the bottom of the polymer composite material plate (4) is provided with a bonding groove (43).
13. The airfield pavement slab repair method of claim 12, wherein: the combination grooves (43) adopt a sawtooth-shaped long rectangular section or a trapezoid section, and the combination grooves (43) are arranged in parallel.
14. A method of repairing a pavement slab of an airport according to any of claims 1 to 13, wherein: a hoisting hole (44) is formed in the polymer composite material plate (4), and hoisting pieces are embedded in the hoisting hole (44).
15. The airfield pavement slab repair method of claim 14, wherein: the prefabricated polymer composite material plate (4) is provided with an exhaust hole (45).
16. The airfield pavement slab repair method of claim 15, wherein: in the step S4, the prefabricated polymer composite material plate (4) is installed in a road plate bin (5) which needs to be replaced in a track sliding or direct hoisting mode, and after the installation is finished, the hoisting holes (44) and the exhaust holes (45) are filled with resin glue solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310555145.7A CN116536993A (en) | 2023-05-15 | 2023-05-15 | Airport pavement broken board repairing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310555145.7A CN116536993A (en) | 2023-05-15 | 2023-05-15 | Airport pavement broken board repairing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116536993A true CN116536993A (en) | 2023-08-04 |
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ID=87454008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310555145.7A Pending CN116536993A (en) | 2023-05-15 | 2023-05-15 | Airport pavement broken board repairing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116536993A (en) |
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2023
- 2023-05-15 CN CN202310555145.7A patent/CN116536993A/en active Pending
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