CN214613402U

CN214613402U - Airport pavement new and old plate slope connecting structure

Info

Publication number: CN214613402U
Application number: CN202120673895.0U
Authority: CN
Inventors: 汪建国; 金敏; 张文秀; 蒋正; 王岩
Original assignee: China Railway Beijing Engineering Group Co Ltd
Current assignee: China Railway Beijing Engineering Group Co Ltd
Priority date: 2021-04-01
Filing date: 2021-04-01
Publication date: 2021-11-05
Anticipated expiration: 2031-04-01

Abstract

The utility model relates to an airport pavement new and old plate connects slope structure, belong to the technical field of airport pavement maintenance, including digging on old plate top surface and hug closely the overlap joint groove of restoreing the plate and spread at overlap joint inslot and overlap joint groove complex overlap joint section, overlap joint section and the integrative shop of restoreing the plate, the top surface of overlap joint section is to keeping away from the slope of restoreing plate direction and forming level and smooth slope that connects, the top surface of the one end of restoreing the plate is kept away from to the overlap joint section flushes with the top surface of old plate, the top surface of overlap joint section and the integrative one end of restoreing the plate flushes with the top surface of restoreing the plate. According to the method, the lapping grooves are formed in the old plate, and the lapping sections integrated with the repaired plate are paved in the lapping grooves, so that the overall strength of the road surface at the joint of the old plate and the new plate is improved, the durability is higher, and the old plate and the new plate are not easily damaged by the wheel load of an aircraft; the smooth slope of the top surface of the lap joint section also enables the aircraft to be in stable transition between the repair plate and the old plate, and ensures the operation safety.

Description

Airport pavement new and old plate slope connecting structure

Technical Field

The application relates to the field of airport pavement maintenance, in particular to a new and old plate slope connecting structure for an airport pavement.

Background

The airport pavement is one or more layers of artificial structures paved on natural soil and base layers by using road building materials, and is a plateau road for taking off, landing, sliding, maintaining and parking of airplanes, such as runways, taxiways, passenger plateaus, maintenance plateaus, goods plateaus, parking plateaus and the like. Airport pavements, particularly runways, must be flat, non-skid and have sufficient bearing capacity, while the runways must also withstand high friction, heavy pressure, and dynamic stresses during aircraft landing.

The airport pavement is paved by asphalt concrete or cement concrete. After a long time of use, the road surface is damaged to a certain extent, and particularly after the road surface is subjected to heavy pressure of an airplane and wheel friction, the road surface needs to be repaired at the moment. When the old concrete plate is seriously damaged and is settled in a large area, the old plate needs to be replaced. As shown in fig. 1, the new repair slabs are controlled to a design elevation, typically higher than the old slabs, so that there is a significant staggering between the old and new slabs. If the treatment is not adopted, the operation safety of aircrafts such as airplanes and the like can be seriously influenced and threatened by wrong stations.

The traditional construction mode is that cement mortar is directly screeded and smoothly connected in a slab staggering area where new and old slabs exist, but the cement mortar cannot be combined with the concrete of the old slabs to form a whole, so that a cement mortar layer falls off under the action of wheel load of an aircraft, and the safety of the aircraft is easily influenced by the fallen fragments. Therefore, a new structure is required for the treatment of the joints between the old and the new panels.

SUMMERY OF THE UTILITY MODEL

In order to guarantee the durability and the safety of the connecting part of the new plate and the old plate when the airport pavement is repaired, the application provides a slope connecting structure of the new plate and the old plate on the airport pavement.

The application provides a new and old plate of airport pavement connects slope structure adopts following technical scheme:

the utility model provides a new and old plate of airport pavement connects slope structure, the top surface of restoreing the plate is higher than the top surface of old plate, be the plate seam between old plate and the restoration plate, its characterized in that: including digging on old plate top surface and hugging closely the overlap joint groove of restoreing the plate and paving in overlap joint inslot and overlap joint groove complex overlap joint section, overlap joint section and the integrative pavement of restoreing the plate, the top surface of overlap joint section is to keeping away from the slope of restoreing plate direction and forming level and smooth slope that connects, the top surface of the one end of restoreing the plate is kept away from to the overlap joint section flushes with the top surface of old plate, the top surface of overlap joint section and the one end of restoreing plate body coupling flushes with the top surface of restoreing the plate.

By adopting the technical scheme, the lap joint groove is dug at the joint of the old plate and the new plate by manual equipment, and then the lap joint section is paved in the lap joint groove, because the lap joint section and the repair plate are integrally paved and the lap joint section is supported by the groove bottom of the lap joint groove of the old plate, the strength of the lap joint section is ensured, the lap joint section is not easy to damage and has good durability; the smooth slope of the top surface of the lap joint section buffers the height difference between the repaired plate and the old plate, so that the aircraft can safely run when passing through the joint of the repaired plate and the old plate.

Preferably, the horizontal width of the overlapping groove is not less than 20 cm.

Through adopting above-mentioned technical scheme, make the overlap joint section can stretch into one section distance of old plate, improve the stability of connecing the slope structure.

Preferably, the bottom surface of the overlapping groove is a foundation slope inclined towards the repair plate.

Through adopting above-mentioned technical scheme for the overlap joint section reduces gradually in the direction of keeping away from the restoration plate in thickness, and the bottom of old plate plays better supporting role to the overlap joint section.

Preferably, the cutting depth of the side of the overlapping groove far away from the repair plate is not less than the 1/3 plate thickness of the old plate.

Through adopting above-mentioned technical scheme, guarantee the thickness that the overlap joint section is close to the one end of old plate, make the bulk strength of overlap joint section better.

Preferably, the cutting depth of the side of the overlapping groove close to the repair plate is not less than the 1/2 plate thickness of the old plate.

Through adopting above-mentioned technical scheme, guarantee that the overlap joint section is located the thickness of restoreing plate one end, increase overlap joint section and the connection area between the restoration plate, make the overlap joint section can become an organic whole better with the restoration plate, joint strength is bigger.

Preferably, the top line of the smooth slope of the lap joint section and the plate joint are located on the same vertical plane.

By adopting the technical scheme, the slope of the smooth slope of the lap joint section is smaller, and the operation safety of the aircraft is improved.

In summary, according to the method, the lapping grooves are formed in the old plate, and the lapping sections integrated with the repaired plate are laid in the lapping grooves, so that the overall strength of the road surface at the joint of the old plate and the new plate is improved, the durability is higher, and the old plate and the new plate are not easily damaged by the wheel load of an aircraft; the smooth connecting slope on the top surface of the lap joint section enables the aircraft to be in stable transition between the repair plate and the old plate, so that the operation safety is ensured; the groove bottom of the overlapping groove is set to be an inclined plane inclined towards the repairing plate, so that the stress of the overlapping section is better, and the slope connection of the new plate and the old plate is more stable.

Drawings

Fig. 1 is a schematic diagram of the staggering of old and new boards in the background of the present application.

Fig. 2 is a partial schematic view of a slope connecting structure of new and old plates on an airport pavement according to an embodiment of the application.

Fig. 3 is an overall schematic diagram of a new and old plate slope connecting structure of an airport pavement according to an embodiment of the application.

Description of reference numerals: 1. old plates; 11. a lap joint groove; 2. repairing the plate; 21. a lap joint section; 3. smoothly connecting slopes; 4. connecting a foundation slope; 5. plate seaming; 6. manually cutting a seam; 7. and (4) staggering the stations.

Detailed Description

The present application is described in further detail below with reference to figures 2-3.

In the process of repairing the old concrete pavement of the airport, the damaged or seriously settled old plate needs to be broken, and a new concrete plate needs to be paved, so that a joint is formed between the newly repaired plate and the old plate. Because newly repairing the top surface design elevation of plate often is higher than the top surface of old plate, has the wrong platform in the seam crossing, influences the operation safety of aircraft, and traditional mode of directly laying the smooth cement mortar that meets of platform crossing also has the potential safety hazard because cement mortar can't combine into an entirety with the concrete layer of old plate, drops under the effect of aircraft wheel load easily.

In order to solve the problems, the embodiment of the application discloses a slope connecting structure for new and old plates of an airport pavement. Referring to fig. 2 and 3, the new and old slab slope connecting structure of the airport pavement comprises an overlap groove 11 formed by chiseling the top surface of the old slab 1 downward near the vertical slab joint 5 between the old slab 1 and the repair slab 2, and an overlap section 21 laid in the overlap groove 11 and engaged with the overlap groove 11.

One side of the overlapping groove 11 far away from the repair plate 2 is provided with a vertical artificial cutting seam 5. The top surface of the repair plate 2 is higher than the old plate 1, and the lap joint groove 11 is tightly attached to the repair plate 2, so that the repair plate 2 blocks one side of the lap joint groove 11 facing the repair plate 2. The horizontal width of the overlapping groove 2 is 30cm, namely the distance between the artificial cutting seam 6 and the plate seam 5 is 30 cm.

The depth of the artificial cutting seam 5 is 1/3 plate thickness of the old plate 1, the vertical distance between one end of the bottom of the overlapping groove 11 far away from the artificial cutting seam 5 and the top surface of the old plate 1 is 1/2 plate thickness of the old plate 1, and the bottom of the overlapping groove 11 forms a foundation connecting slope 4 facing the repair plate 2.

The lap joint section 21 and the repair plate 2 are integrally paved by adopting concrete with the same model. The end surface of the lap joint section 21 far away from the repair plate 2 is tightly attached to the groove wall of the lap joint groove 11, namely, the old plate 1. The top surface slope setting of overlap joint section 21, wherein the top surface of the one end of hugging closely with old plate 1 flushes with the top surface of old plate 1, and the top surface of the one end of integrative being connected with repairing plate 2 flushes with the top surface of repairing plate 2 for the top surface of overlap joint section 21 forms the level and smooth slope 3 that connects that is located between old plate 1 and the repairing plate 2, plays the buffering to the difference in height between repairing plate 2 and the old plate 1. The top line of the smooth slope 3 and the plate joint 5 are positioned on the same vertical plane. The slope connecting structure can ensure the operation safety of the aircraft at the joint of the old plate 1 and the repair plate 2.

The implementation principle of the new and old plate slope connecting structure of the airport pavement is as follows: firstly, a concrete plate of a part of an airport pavement to be repaired is broken, then a plate joint 5 deflects to the direction of an old plate 1 for 30cm, then a line is bounced, a joint is cut downwards along the line, the part of the old plate 1 between the joint and the plate joint 5 is chiseled to form a lap joint groove 11, finally, a lap joint section 21 and a repair plate 2 are paved together, and the top surface of the lap joint section 2 is paved into a smooth connecting slope 3.

The utility model provides a new and old plate of airport pavement connects slope structure can enough effectively eliminate old plate 1 and repair plate 2 wrong platform problem in plate seam 5 department, simultaneously because overlap joint section 21 and the integrative pavement of repair plate 2, connects regional intensity of slope and durability homoenergetic and can satisfy the safe operation demand of airport pavement.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a new and old plate of airport pavement connects slope structure, the top surface of repairing plate (2) is higher than the top surface of old plate (1), be plate seam (5), its characterized in that between old plate (1) and the repairing plate (2): including cutting on old plate (1) top surface and hug closely overlap joint groove (11) and the shop of repairing plate (2) in overlap joint groove (11) with overlap joint groove (11) complex overlap joint section (21), overlap joint section (21) and the integrative shop of repairing plate (2), the top surface of overlap joint section (21) to keeping away from to repair plate (2) direction slope formation level and smooth slope (3) that connects, the top surface of the one end of repairing plate (2) is kept away from in overlap joint section (21) flushes with the top surface of old plate (1), the top surface of overlap joint section (21) and the one end of repairing plate (2) body coupling flushes with the top surface of repairing plate (2).

2. The airport pavement new and old plate slope connecting structure as claimed in claim 1, wherein: the horizontal width of the overlapping groove (11) is not less than 20 cm.

3. The airport pavement new and old plate slope connecting structure as claimed in claim 1, wherein: the bottom surface of the lapping groove (11) is a foundation jointing slope (4) which inclines towards the repairing plate (2).

4. The airport pavement new and old plate slope connecting structure as claimed in claim 3, wherein: the cutting depth of the side of the overlapping groove (11) far away from the repair plate (2) is not less than the 1/3 plate thickness of the old plate (1).

5. The airport pavement new and old plate slope connecting structure as claimed in claim 4, wherein: the cutting depth of one side of the overlapping groove (11) close to the repair plate (2) is not less than the 1/2 plate thickness of the old plate (1).

6. The airport pavement new and old plate slope connecting structure as claimed in claim 1, wherein: the top line of the smooth slope (3) of the lap joint section (21) and the plate joint (5) are positioned on the same vertical plane.