阅读说明：本技术 机场飞行道面的整体修复方法 (Integral repairing method for airport flight road surface ) 是由 高国华 杨向党 于 2021-08-23 设计创作，主要内容包括：本发明公开了机场飞行道面的整体修复方法,包括：步骤一、预制混凝土板,确定需要更换的受损混凝土板的幅面尺寸,制备预制混凝土板；步骤二、拆除受损混凝土板,切割受损混凝土板使其与周边道面,在受损混凝土板上固定吊架,抬升吊架拆除受损混凝土板；步骤三、安装预制混凝土板,在基槽周边道面的混凝土层开设插孔,在插孔中插入钢筋,将预制混凝土板放入基槽,调平预制混凝土板；步骤四、固定预制混凝土板,注入快凝水泥浆液填充预制混凝土板周边的空隙,使预制混凝土板与基槽和相邻道面紧密连接。本发明在不影响机场正常运行情况下,利用停航间隙,快速更换道面受损板块,保障机场运行安全,延长机场道面使用寿命,降低修复成本。(The invention discloses an integral repair method of an airport runway surface, which comprises the following steps: firstly, prefabricating a concrete slab, determining the breadth size of the damaged concrete slab needing to be replaced, and preparing the precast concrete slab; step two, removing the damaged concrete slab, cutting the damaged concrete slab to enable the damaged concrete slab to be connected with the peripheral pavement, fixing a hanging bracket on the damaged concrete slab, and lifting the hanging bracket to remove the damaged concrete slab; step three, mounting a precast concrete plate, arranging jacks in the concrete layer on the road surface at the periphery of the foundation trench, inserting reinforcing steel bars into the jacks, placing the precast concrete plate into the foundation trench, and leveling the precast concrete plate; and step four, fixing the precast concrete plate, and injecting quick-setting cement grout to fill the gap at the periphery of the precast concrete plate so as to tightly connect the precast concrete plate with the foundation trench and the adjacent pavement. The invention utilizes the parking clearance to quickly replace the damaged plate of the runway surface under the condition of not influencing the normal operation of the airport, thereby ensuring the operation safety of the airport, prolonging the service life of the runway surface of the airport and reducing the repair cost.)

1. The method for integrally repairing the airport runway surface is characterized by comprising the following steps:

firstly, prefabricating a concrete slab, determining the breadth size of the damaged concrete slab needing to be replaced according to the damaged area of the airport runway surface, and preparing the precast concrete slab according to the breadth size, wherein the bottom edge of the precast concrete slab is provided with an inserting groove;

step two, dismantling the damaged concrete slab, cutting the damaged concrete slab to separate the damaged concrete slab from the peripheral pavement, fixing a hanging bracket on the damaged concrete slab, and lifting the hanging bracket to dismantle the damaged concrete slab;

wherein, the gallows includes: the mounting frame is in a grid shape, a plurality of mounting holes are formed in the mounting frame, and the mounting frame and the damaged concrete slab are fixed through the mounting holes in the appointed positions by expansion bolts;

step three, mounting precast concrete plates, removing damaged concrete plates, leaving foundation grooves on the pavement, arranging jacks in the concrete layers of the pavement around the foundation grooves, wherein the number and the positions of the jacks are matched with those of the slots, inserting reinforcing steel bars which are longer than the jacks in the jacks, placing the precast concrete plates into the foundation grooves, embedding the parts of the reinforcing steel bars, which are longer than the jacks, into the slots, and leveling the precast concrete plates;

and step four, fixing the precast concrete plate, and injecting quick-setting cement grout to fill the gap between the precast concrete plate and the foundation trench and the gap between the precast concrete plate and the adjacent pavement, so that the precast concrete plate is tightly connected with the foundation trench and the adjacent pavement.

2. The repair method of claim 1, wherein in the first step, the precast concrete panel is prepared by installing a leveling device on the precast concrete panel, the leveling device comprising: the internal thread outer tube of fixing on precast concrete board, internal thread outer tube threaded connection has the external screw thread inner tube, the axis direction that the internal thread outer tube can be followed to the external screw thread inner tube reciprocates.

3. The method of repairing according to claim 2, wherein said internally threaded outer tube is provided with a lifting ring.

4. The repair method of claim 3 wherein in step four, the quick setting cement slurry is injected into the void through the internally threaded outer tube.

5. A method of repair according to claim 4 wherein the upper end of the internally threaded outer tube is provided with a notch to facilitate the forced threading of the internally threaded outer tube.

6. The repair method of claim 5 wherein the damaged concrete panel and the precast concrete panel are square in breadth shape.

7. The repairing method according to claim 6, wherein in the step one, when determining the web size of the damaged concrete slab, the length a, the width b, the thickness h and two diagonal lengths L1, L2 of the damaged concrete slab are measured.

8. The repair method of claim 7, wherein in the first step, the precast concrete panel is prepared to be slightly smaller than the size of the damaged concrete panel, and has a-20mm in length, b-20mm in width, and h-10mm in thickness.

9. The repair method according to claim 8, wherein in the third step, the foundation trench is trimmed and cleaned before the precast concrete panel is installed, so that the space of the foundation trench conforms to the installation size of the precast concrete panel.

Technical Field

The invention relates to the technical field of airport engineering construction, in particular to a construction method for quickly recovering the airport cement concrete flying pavement when the airport cement concrete flying pavement is damaged and needs to be repaired in a whole block.

Background

After the cement concrete pavement in the airport flight area is seriously damaged, the cement concrete pavement can be continuously used, thereby causing serious threat to the safety of passing airplanes and vehicles and influencing the taking-off and landing safety of the airplanes and the passing safety of the vehicles. Therefore, the flight pavement of the airport needs to be regularly maintained, the damaged pavement is timely repaired, and the flight safety is ensured.

Particularly, in the airport operation process, the pavement repairing process can be completed only once in every flying stopping clearance, the normal operation of the airport on the next day cannot be influenced, and in order to ensure the operation safety of the airport, the whole pavement repairing process only needs short hours from the time when people enter the airport to remove and replace the pavement to the time when the pavement is detected and accepted. In order to prolong the service life of a repaired pavement, at present, when a seriously damaged plate needs to be quickly repaired, quick-setting concrete is often adopted for repairing, the quick-setting concrete has the advantage of quick setting and can meet the requirement of an airport on quick repair, but the mechanical property of the quick-setting concrete is generally not higher than that of cement with normal setting speed, the service life of the quick-setting concrete is seriously influenced, and the construction cost of the on-site repair of the quick-setting concrete is far higher than that of common concrete.

The direction one skilled in the art is constantly seeking is how to deal with the stringent requirements of airport runway repair operations.

The information disclosed in this background section is only for enhancement of understanding of the general background of the application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Disclosure of Invention

The invention aims to provide an overall repairing method of an airport flight path surface, which utilizes methods of extrafield prefabrication, field overall dismantling and overall replacing to pursue repairing speed, prolong the service life of the repaired flight path surface and reduce repairing cost so as to solve the technical problems in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

the method for integrally repairing the airport runway surface comprises the following steps:

firstly, prefabricating a concrete slab, determining the breadth size of the damaged concrete slab needing to be replaced according to the damaged area of the airport runway surface, and preparing the precast concrete slab according to the breadth size, wherein the bottom edge of the precast concrete slab is provided with an inserting groove;

step two, dismantling the damaged concrete slab, cutting the damaged concrete slab to separate the damaged concrete slab from the peripheral pavement, fixing a hanging bracket on the damaged concrete slab, and lifting the hanging bracket to dismantle the damaged concrete slab;

wherein, the gallows includes: the mounting frame is in a grid shape, a plurality of mounting holes are formed in the mounting frame, and the mounting frame and the damaged concrete slab are fixed through the mounting holes in the appointed positions by expansion bolts;

step three, mounting precast concrete plates, removing damaged concrete plates, leaving foundation grooves on the pavement, arranging jacks in the concrete layers of the pavement around the foundation grooves, wherein the number and the positions of the jacks are matched with those of the slots, inserting reinforcing steel bars which are longer than the jacks in the jacks, placing the precast concrete plates into the foundation grooves, embedding the parts of the reinforcing steel bars, which are longer than the jacks, into the slots, and leveling the precast concrete plates;

and step four, fixing the precast concrete plate, and injecting quick-setting cement grout to fill the gap between the precast concrete plate and the foundation trench and the gap between the precast concrete plate and the adjacent pavement, so that the precast concrete plate is tightly connected with the foundation trench and the adjacent pavement.

Further, in the step one, when the precast concrete slab is prepared, a leveling device is installed on the precast concrete slab, and the leveling device includes: the internal thread outer tube of fixing on precast concrete board, internal thread outer tube threaded connection has the external screw thread inner tube, the axis direction that the internal thread outer tube can be followed to the external screw thread inner tube reciprocates.

Furthermore, a hanging ring is arranged on the internal thread outer pipe.

Further, in the fourth step, the quick setting cement grout is injected into the gap through the internal thread outer pipe.

Furthermore, the upper end of the internal thread outer pipe is provided with a notch which is convenient for applying force to the internal thread outer pipe and screwing.

Further, the breadth shape of the damaged concrete slab and the precast concrete slab is square.

Further, in the step one, when determining the web size of the damaged concrete slab, the length a, the width b, the thickness h and two diagonal lengths L1 and L2 of the damaged concrete slab are measured.

Further, in the step one, the prepared precast concrete slab is slightly smaller than the size of the damaged concrete slab, and has a-20mm in length, b-20mm in width and h-10mm in thickness.

Further, in the third step, before the precast concrete slab is installed, the foundation trench is trimmed and cleaned, so that the space of the foundation trench conforms to the installation size of the precast concrete slab.

Compared with the prior art, the invention has the following beneficial effects:

1. under the condition of not influencing the normal operation of the airport, the damaged plate of the pavement is quickly replaced by utilizing the parking clearance, the operation safety of the airport is ensured, the service life of the pavement of the airport is prolonged, and the repair cost is reduced.

2. The damaged concrete slab in the specified range is integrally dismantled through the hanging bracket, the dismantling efficiency is improved, and compared with the traditional method of dismantling by using a percussion drill, the method can avoid damaging the runway structure below the concrete layer.

3. The precast concrete slab is leveled by controlling the downward extending length of the external thread inner pipe, and meanwhile, the external thread inner pipe is used as a grouting opening to fill quick-setting cement slurry into a structural gap.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural view of a precast concrete panel in the present invention;

FIG. 2 is a schematic cross-sectional view of a leveling device in the present invention;

FIG. 3 is a side view of FIG. 1;

FIG. 4 is a schematic view of the hanger installation of the present invention;

FIG. 5 is a schematic view of a base cell in the present invention;

wherein: the steel bar, the steel bar 2, the leveling device 3, the internal thread outer pipe 31, the external thread inner pipe 32, the lifting ring 33, the gap 34, the damaged concrete slab 4, the mounting frame 5, the mounting hole 6, the foundation groove 7, the jack 8, the slot 9 and the hanger 10 are embedded in the steel bar 1.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

Fig. 1-5 show a specific embodiment of the method for repairing an airport runway surface according to the present invention, in this embodiment, the method specifically includes the following steps:

step one, prefabricating a concrete slab 1, determining the breadth size of a damaged concrete slab 4 needing to be replaced according to the damaged area of the airport runway surface, and preparing the precast concrete slab 1 outside the airport according to the breadth size, wherein the breadth shapes of the damaged concrete slab 4 and the precast concrete slab 1 are square, and four sides of the bottom surface of the precast concrete slab 1 are provided with inserting grooves 9.

When determining the web size of the damaged concrete panel 4, the length a, width b, thickness h and two diagonal lengths L1, L2 of the damaged concrete panel 4 are measured. (the difference between the two measurements cannot exceed 2mm)

The prepared precast concrete slab 1 is slightly smaller than the size of the damaged concrete slab 4, the length is a-20mm, the width is b-20mm, and the thickness is h-10 mm. (the difference between the two measurements cannot exceed 2mm)

When the precast concrete plate 1 is prepared, a leveling device 3 is installed on the precast concrete plate 1, and the leveling device 3 includes: and the outer pipe 31 is fixed on the precast concrete slab 1, the outer pipe 31 is internally connected with the inner pipe 32, and the inner pipe 32 can move up and down along the axial direction of the outer pipe 31. The internally threaded outer tube 31 is provided with a lifting ring 33. The upper end of the internally threaded outer tube 31 is provided with a notch 34 to facilitate the application of force to the internally threaded outer tube 31 for screwing.

Step two, dismantling the damaged concrete plate 4, stopping the navigation clearance one day before changing the plate, cutting the damaged concrete plate 4 by using a cutting machine to separate the damaged concrete plate from the peripheral road surface, wherein the depth h +5mm is required, and the cutting seam needs to be accurate, straight and cut completely; fixing a hanging bracket 10 on the damaged concrete plate 4, and lifting the hanging bracket 10 to remove the damaged concrete plate 4;

wherein, gallows 10 specifically includes: be latticed mounting bracket 5, be provided with a plurality of mounting hole 6 on the mounting bracket 5, expansion bolts (not shown in the figure) are fixed mounting bracket 5 and impaired concrete slab 5 through the mounting hole 6 of assigned position, when selecting the mounting hole 6 that installation expansion bolts is fixed, avoid selecting near cracked damaged part mounting hole 6, avoid impaired concrete slab 4 to be smashed by expansion bolts.

Step three, mounting the precast concrete plate 1, removing the damaged concrete plate 4, leaving a foundation trench 7 on the pavement, trimming and cleaning the foundation trench 7 to enable the space of the foundation trench 7 to be in accordance with the mounting size of the precast concrete plate 1, arranging jacks 8 in the concrete layer of the pavement around the foundation trench 7, enabling the jacks 8 to be located in the middle of the thickness of the concrete layer of the pavement, enabling the number and the positions of the jacks 8 to be matched with those of the slots 9, inserting reinforcing steel bars 2 which are longer than the depth of the jacks 8 into the jacks 8, placing the precast concrete plate 1 into the foundation trench 7, embedding the portions, extending out of the jacks 8, of the reinforcing steel bars 2 into the slots 9, leveling the precast concrete plate 1 to enable the precast concrete plate 1 to be 2mm higher than the surrounding pavement slab and to be in proper distance with the surrounding pavement slab, loosening a lifting appliance, and removing lifting equipment.

And step four, fixing the precast concrete slab 1, injecting quick-setting cement grout to fill a gap between the precast concrete slab 1 and the foundation trench 7 and an adjacent pavement, injecting the quick-setting cement grout into the gap through the internal thread outer pipe 31, and enabling the grout to emerge from a gap between the precast slab and the adjacent slab, so that the precast concrete slab 1 is tightly connected with the foundation trench 7 and the adjacent pavement.

And subsequently, sealing the grouting hole, cleaning the site and withdrawing equipment personnel.

The concrete slab on the original pavement is removed and the prefabricated slab is installed within 2 hours, the use strength of the cement slurry can be achieved within 1 hour, and the concrete slab can be put into use after the work is finished.

And (5) cutting a seam and cleaning the seam according to a seam filling process in a stopping clearance on the next day, and finishing the work of installing the precast slabs.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.