Method for improving integrity of airport hill-skill stone cushion layer

Abstract

The invention relates to the field of road construction, in particular to a method for improving the integrity of an airport hill-stone cushion layer. The method comprises the steps that accumulated water pumping drainage is conducted on the ground of the hill-stone cushion layer, and it is guaranteed that no accumulated water exists on the original ground; a layer of geogrids is laid on the original ground of the full width of the channel, it is guaranteed that the adjacent geogrids are in lap joint by 20 cm, and the geogrids are fixed through nails shaped like a Chinese character'hui '; a hill-skill stone cushion layer is laid on the geogrid, and the thickness is controlled according to design requirements; a 22-ton vibratory roller is used for conducting static pressure on the hill-skill stone cushion layer for one time, conducting weak vibration for three times and conducting static pressure again for one time, and the solid volume rate of the cushion layer is increased to reach 75% of the design requirement; the geogrid is fixed by using the clip-shaped nails, so that the hill-skill stone cushion layer becomes a whole with upper and lower restraint; the method has the advantages that the geogrids are additionally laid on the upper portion and the lower portion of the cushion layer, the upper portion and the lower portion of the hill-skill stone cushion layer are restrained, the hill-skill stone cushion layer becomes a whole, and differential settlement of the cushion layer is reduced.

Description

Technical Field

[0001] The present invention relates to the field of road construction, and more specifically, to a method for improving the integrity of the mountain skin stone cushion layer at the airport. Background Art

[0002] In some areas of the airport construction site, the silty clay is in a saturated state, with low soil subgrade bearing capacity and unable to construct on the upper part. In the roadbed area, it is necessary to lay a 30-cm-thick mountain skin stone as a construction cushion layer throughout the whole area before the next earthwork filling construction can be carried out. Due to the often untreated wet clay on the original ground and low bearing capacity, there may be problems of uneven settlement of the soil subgrade, resulting in the situation of slab cracking on the road surface.

[0003] Similar to a highway construction method with the application number CN202110039955.8, it includes the following steps: Compacting the soil subgrade: initially compacting and tamping the soil subgrade; Laying the cushion layer: using a gravel spreader to layer by layer spread graded gravel to a predetermined thickness to form the cushion layer; Inserting the lower damping seismic component: evenly distributing and inserting the lower damping seismic component into the cushion layer; Fixing the upper damping seismic component: matching the upper damping seismic component with the lower damping seismic component one by one and fixing them with iron wire; Laying the base course: first manually laying graded gravel on the cushion layer to the top of the upper damping seismic component, then using a gravel spreader to layer by layer spread graded gravel to a predetermined thickness, and then leveling and compacting to form the base course; Laying the surface course: laying cement concrete or asphalt concrete above the base course, and then leveling and curing to form the surface course; By setting the lower damping seismic component in the cushion layer and the upper damping seismic component in the base course, it effectively reduces the damage caused by earthquakes to the highway without affecting the integrity of the highway.

[0004] Therefore, there are drawbacks in the existing technical solutions, and it is necessary to solve the problem of soil subgrade settlement caused by high water content in the soil in the roadbed area, improve the integrity of the cushion layer, and reduce the pavement cracking caused by uneven settlement of the base course. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the existing technology, and by realizing that the mountain skin stone cushion layer becomes a whole. By laying geogrids on both the upper and lower sides of the cushion layer, the constraints on both the upper and lower sides of the mountain skin stone cushion layer are increased, making the mountain skin stone cushion layer a whole and reducing the uneven settlement of the cushion layer; thereby effectively solving the problem of soil subgrade settlement caused by high water content in the soil in the roadbed area, improving the integrity of the cushion layer, and reducing the pavement cracking caused by uneven settlement of the base course.

[0006] For this purpose, the technical solution adopted is that a method for improving the integrity of the mountain skin stone cushion layer at the airport of the present invention includes the following steps:

[0007] S1: Drain the accumulated water on the ground of the airport mountain skin stone cushion layer;

[0008] S2: Lay a layer of geogrid on the natural ground within the entire width of the airport runway;

[0009] S3: Place a cushion layer of mountain skin stones on the geogrid;

[0010] S4: Use a vibrating roller to perform weak vibration and static pressure on the mountain skin stone cushion layer;

[0011] S5: Then lay a layer of geogrid within the entire width of the surface layer of the mountain skin stone cushion layer to make the mountain skin stone cushion layer an integral whole with constraints up and down.

[0012] Preferably, the above S2 includes the following steps:

[0013] S21: Ensure a 20-cm overlap between adjacent geogrids when laying the geogrid;

[0014] S22: Fix the geogrid with staple pins.

[0015] Preferably, the above S4 includes the following steps:

[0016] S41: Use the roller to perform 1 pass of static pressure and 3 passes of weak vibration on the mountain skin stone cushion layer;

[0017] S42: After weak vibration, perform 1 more pass of static pressure to increase the solid volume ratio of the cushion layer.

[0018] Preferably, the above S5 includes:

[0019] S51: Ensure a 20-cm overlap between adjacent geogrids when laying the geogrid after rolling;

[0020] S52: Fix the geogrid with staple pins.

[0021] Preferably, a vibrating roller is inserted and fixed on the roller.

[0022] Preferably, the vibrating roller includes a front baffle plate of the roller, a roller base, a vibration driver, a vibrator, and a road pressing platform. The front baffle plate of the roller is fixed on the roller, the front baffle plate of the roller is inserted and fixed on the roller base, a vibration driver is rotatably arranged on the roller base, and a plurality of vibrators are fixed on the vibration driver to perform vibration hammering on the inside of the road pressing platform.

[0023] Preferably, a connecting slot is penetrated through the roller base, the front baffle plate of the roller is connected through inserting into the connecting slot, a locking slot is arranged on the part of the front baffle plate of the roller passing through the connecting slot, a locking block is inserted into the locking slot for locking, and the locking block is connected to the roller base through a screw at the upper end for locking after connection.

[0024] Preferably, the vibration driver includes a hydraulic motor, a worm, a turbine drive central shaft, and a bearing housing. The hydraulic motor drives the worm to rotate through a support base at the side end of the road roller base. The worm drives the turbine drive central shaft to rotate within the road roller base through a worm and worm gear combination. The turbine drive central shaft rotates within the road roller base through the bearing housing.

[0025] Preferably, the vibrator includes a drive disk, drive edge grooves, edge groove drive rods, and sliding ball rods. Two symmetric drive edge grooves are respectively arranged on both sides of the drive disk. Two sliding ball rods are respectively and slidably arranged in the two drive edge grooves. Spheres are arranged in the sliding ball rods through ball grooves for sliding. Both sliding ball rods are fixed on the edge groove drive rods.

[0026] The vibrator further includes a vibration top platform, spring shafts, and vibration springs. The lower end of the edge groove drive rod is longitudinally limited and slid in the upper restraint longitudinal chute of the road roller base. The lower end of the upper restraint longitudinal chute communicates with the inner restraint longitudinal chute of the road pressure platform. The lower end of the edge groove drive rod is fixed on the vibration top platform. The vibration top platform is sleeved on multiple spring shafts. Vibration springs are sleeved on the spring shafts. The vibration springs are arranged between the vibration top platform and the road pressure platform.

[0027] The turning grooves at the upper and lower ends of the drive edge grooves are symmetrically arranged on the periphery of the eccentric part of the drive disk, and the turning grooves at the left and right ends of the drive edge grooves are symmetrically arranged on the inner side of the eccentric part of the drive disk. The adjacent turning grooves are communicated through straight grooves.

[0028] Preferably, the road pressure platform includes an inner restraint longitudinal chute, a hydraulic cylinder seat, a hydraulic cylinder, a hydraulic drive base, and a pressing frame platform. The hydraulic cylinder is fixed to the lower end of the road roller base through the hydraulic cylinder seat. The telescopic rod of the hydraulic cylinder is fixed on the hydraulic drive base. An inner restraint longitudinal chute is arranged on the hydraulic drive base. A pressing frame platform is fixed to the lower end of the hydraulic drive base. The inside of the pressing frame platform is hollowed out. The vibration top platform presses tightly against the inner wall of the pressing frame platform. The vibration springs are arranged between the vibration top platform and the hydraulic drive base.

[0029] Other features and advantages of the present invention will be described in the subsequent description. And, partly, it will become obvious from the description, or understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the structures specifically pointed out in this application document.

[0030] The technical solutions of the present invention will be further described in detail below through the drawings and embodiments. Description of the Drawings

[0031] The drawings are used to provide a further understanding of the present invention and constitute a part of the description. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0032] Figure 1 It is a schematic diagram of the construction process of the method of the present invention;

[0033] Figure 2 It is a schematic diagram of the overall structure of the vibrating roller top of the present invention Figure 1 ;

[0034] Figure 3 It is a schematic diagram of the overall structure of the vibrating roller top of the present invention Figure 2 ;

[0035] Figure 4 It is a schematic diagram of the connection structure of the road pressing base of the present invention;

[0036] Figure 5 It is a schematic diagram of the structure of the road pressing platform of the present invention;

[0037] Figure 6 It is a schematic diagram of the structure of the vibration driver of the present invention;

[0038] Figure 7 It is a schematic diagram of the structure of the vibrator of the present invention Figure 1 ;

[0039] Figure 8 It is a schematic diagram of the structure of the vibrator of the present invention Figure 2 ;

[0040] Figure 9 It is a schematic diagram of the structure of the vibrator of the present invention Figure 3 ;

[0041] Figure 10 It is a schematic diagram of the structure of the vibrator of the present invention Figure 4 ;

[0042] Figure 11 It is a schematic diagram of the structure of the drive disk of the present invention.

[0043] In the figure: the front baffle of the road roller 1; the road pressing base 2; the vibration driver 3; the vibrator 4; the road pressing platform 5; the upper restraint longitudinal chute 6; the inner restraint longitudinal chute 7; the hydraulic cylinder seat 8; the hydraulic cylinder 9; the hydraulic drive base 10; the pressing frame platform 11; the connection slot 12; the locking plug 13; the hydraulic motor 14; the worm 15; the turbine drive central shaft 16; the bearing seat 17; the drive disk 18; the drive along groove 19; the along groove drive rod 20; the sliding ball rod 21; the vibration top platform 22; the spring shaft 23; the vibration spring 24. Specific embodiments

[0044] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0045] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "middle", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0046] In addition, unless otherwise clearly specified and defined, terms such as "install", "connect", "couple", "fix", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0047] In the present application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature. Specific Embodiment 1:

[0049] As Figures 1 - 11 shown, a method for improving the integrity of the mountain skin stone cushion layer at the airport

[0050] S1: Drain the accumulated water on the ground of the mountain skin stone cushion layer to ensure that there is no accumulated water on the original ground;

[0051] S2: Lay a layer of geogrid on the original ground of the full width of the roadbed, ensure that the adjacent geogrids overlap by 20 cm, and fix the geogrid with staple nails;

[0052] S3: Pave the mountain skin stone cushion layer on the geogrid, and control the thickness according to the design requirements;

[0053] S4: Use a 22-ton vibrating roller to statically compact the crushed stone cushion layer once, weakly vibrate it three times, and then statically compact it once more to increase the solid volume ratio of the cushion layer to 75% of the design requirement.

[0054] S5: Then, lay a layer of geogrid over the entire width of the crushed stone cushion layer surface. Overlap adjacent geogrids by 20 cm and use staple nails to fix the geogrids, making the crushed stone cushion layer into an integral whole with constraints both above and below.

[0055] The working principle and beneficial effects of this embodiment are as follows: By making the crushed stone cushion layer into an integral whole. By laying geogrids on both the upper and lower layers of the cushion layer, the constraints on both the upper and lower parts of the crushed stone cushion layer are increased, making the crushed stone cushion layer into an integral whole, reducing the uneven settlement of the cushion layer; thereby effectively solving the problem of soil foundation settlement caused by the relatively high water content of the soil in the roadbed area, improving the integrity of the cushion layer, and reducing the cracking of the pavement caused by uneven settlement of the base layer. Specific Embodiment 2:

[0057] As Figures 1 - 11 shown, a method for improving the integrity of the crushed stone cushion layer of an airport

[0058] The S2 described above includes the following steps:

[0059] S21: Ensure that the overlap between adjacent geogrids is 20 cm when laying the geogrids;

[0060] S22: Fix the geogrids using staple nails.

[0061] The working principle and beneficial effects of this embodiment are as follows: By laying geogrids on both the upper and lower layers of the cushion layer, the constraints on both the upper and lower parts of the crushed stone cushion layer are increased, making the crushed stone cushion layer into an integral whole. Specific Embodiment 3:

[0063] As Figures 1 - 11 shown, a method for improving the integrity of the crushed stone cushion layer of an airport

[0064] The S4 described above includes the following steps:

[0065] S41: Use a roller to statically compact the crushed stone cushion layer once and weakly vibrate it three times;

[0066] S42: After weak vibration, statically compact it once more to increase the solid volume ratio of the cushion layer.

[0067] The working principle and beneficial effects of this embodiment are as follows: By using a roller to statically compact it once and weakly vibrate it three times, it can be fully fused and extruded, and then the solid volume ratio of the cushion layer is increased to 75% of the design requirement. Specific Embodiment 4:

[0069] As Figures 1 - 11As shown in the figure, a method for improving the integrity of the mountain skin stone cushion layer at the airport, where S5 includes:

[0070] S51: When laying the geogrid after rolling, ensure that the adjacent geogrids overlap by 20 cm;

[0071] S52: Use staple pins to fix the geogrid.

[0072] The working principle and beneficial effects of this embodiment are as follows: Lay a layer of geogrid across the entire width on the surface layer of the mountain skin stone cushion layer. The adjacent geogrids overlap by 20 cm, and staple pins are used to fix the geogrid, making the mountain skin stone cushion layer into an integral whole with constraints up and down. Specific embodiment five:

[0074] As Figures 1 - 11 shown in the figure, a method for improving the integrity of the mountain skin stone cushion layer at the airport, where a vibration roller is inserted and fixedly installed on the roller; the vibration roller includes a front baffle 1 of the roller, a roller base 2, a vibration driver 3, a vibrator 4, and a road pressing platform 5. The front baffle 1 of the roller is fixed on the roller, the front baffle 1 of the roller is inserted and fixed on the roller base 2, a vibration driver 3 is rotatably arranged on the roller base 2, and a plurality of vibrators 4 are fixed on the vibration driver 3 to vibrate and hammer the inside of the road pressing platform 5.

[0075] The working principle and beneficial effects of this embodiment are as follows: By inserting and fixedly installing a vibration roller on the roller; the vibration roller is connected to the roller through the front baffle 1 of the roller for transportation and extrusion use. The connection installation and disassembly use are realized by inserting and locking the front baffle 1 of the roller into the roller base 2. Through the vibration driver 3 on the roller base 2, the vibrator 4 is driven for use. Then, through repeated driving along the track, the vibrator 4 regularly hammers inside the road pressing platform 5, thereby realizing weak vibration after static pressure, promoting the full extrusion and fusion of the cushion layer, and increasing the solid volume ratio of the cushion layer to reach 75% of the design requirement; through the effect of hammering, the effect of instantaneous hammering is realized, thereby effectively ensuring the hammering effect. Specific embodiment six:

[0077] As Figures 1 - 11 shown in the figure, a method for improving the integrity of the mountain skin stone cushion layer at the airport, where an adapter slot 12 is penetrated through the roller base 2. The front baffle 1 of the roller is connected through inserting the adapter slot 12. The part of the front baffle 1 of the roller passing through the adapter slot 12 is provided with a locking slot, and a locking block 13 is inserted into the locking slot for locking. The locking block 13 is connected to the roller base 2 through the screw at the upper end for locking after connection.

[0078] The working principle and beneficial effects of this embodiment are as follows: An engaging slot 12 is provided through the road rolling base 2. The front baffle 1 of the road roller is engaged by inserting it into the engaging slot 12. The part of the front baffle 1 of the road roller passing through the engaging slot 12 effectively performs the locking function through the slope provided thereon. The locking is achieved by inserting and locking the locking block 13 into the locking slot. The locking block 13 is connected to the road rolling base 2 through the screw at the upper end for locking after connection, thereby realizing the overall connection of the device with the road roller, which is convenient for use and also facilitates the installation and disassembly of the vehicle body. Specific Embodiment Seven:

[0080] As Figures 1 - 11 shown, a method for improving the integrity of the airport mountain skin stone cushion layer. The vibration driver 3 includes a hydraulic motor 14, a worm 15, a turbine drive central shaft 16 and a bearing seat 17. The hydraulic motor 14 drives the worm 15 to rotate at the side end of the road rolling base 2 through a support seat. The worm 15 drives the turbine drive central shaft 16 to rotate within the road rolling base 2 through a worm and gear combination. The turbine drive central shaft 16 rotates within the road rolling base 2 through the bearing seat 17.

[0081] The working principle and beneficial effects of this embodiment are as follows: By using the hydraulic motor 14 on the road roller, the inconvenient use of electrical energy is effectively avoided. The transmission shaft of the hydraulic motor 14 drives the worm 15 to rotate at the side of the road rolling base 2, and the worm and gear drive the turbine drive central shaft 16 to rotate effectively with reduced resistance within the bearing seat 17 of the road rolling base 2. Specific Embodiment Eight:

[0083] As Figures 1 - 11 shown, a method for improving the integrity of the airport mountain skin stone cushion layer. The vibrator 4 includes a driving disk 18, driving edge grooves 19, edge groove driving rods 20 and sliding ball rods 21. Two symmetric driving edge grooves 19 are respectively provided on both sides of the driving disk 18. Two sliding ball rods 21 are respectively slidably arranged in the two driving edge grooves 19. Spheres are arranged in the sliding ball rods 21 through ball grooves for sliding. Both of the two sliding ball rods 21 are fixed on the edge groove driving rod 20;

[0084] The vibrator 4 further includes a vibration top platform 22, a spring shaft 23 and a vibration spring 24. The lower end of the edge groove driving rod 20 is longitudinally limited and slid in the upper restraint longitudinal chute 6 of the road rolling base 2. The lower end of the upper restraint longitudinal chute 6 communicates with the inner restraint longitudinal chute 7 of the road pressing platform 5; The lower end of the edge groove driving rod 20 is fixed on the vibration top platform 22. The vibration top platform 22 is sleeved on a plurality of spring shafts 23. The vibration spring 24 is sleeved on the spring shaft 23. The vibration spring 24 is arranged between the vibration top platform 22 and the road pressing platform 5;

[0085] The turning grooves at the upper and lower ends of the driving edge groove 19 are symmetrically arranged on the periphery of the eccentric part of the driving disk 18, and the turning grooves at the left and right ends of the driving edge groove 19 are symmetrically arranged inside the eccentric part of the driving disk 18. The adjacent turning grooves are connected by straight grooves.

[0086] The working principle and beneficial effects of this embodiment are as follows: The turbine drives the central shaft 16 to drive the driving disk 18 to rotate. Then, through the driving edge grooves 19 at both ends of the driving disk 18, the edge groove driving rod 20 slides along the driving edge groove 19 through two sliding ball rods 21. At the same time, the edge groove driving rod 20 is longitudinally limited and slides in the upper restraint longitudinal chute 6 and the inner restraint longitudinal chute 7, so as to be restrained. Furthermore, the edge groove driving rod 20 can perform a longitudinal trajectory-driven movement in the upper restraint longitudinal chute 6 and the inner restraint longitudinal chute 7; the spheres are arranged in the sliding ball rods 21 through ball grooves for sliding, and the two sliding ball rods 21 are both fixed on the edge groove driving rod 20, which is convenient for realizing the restraint displacement while reducing the sliding resistance.

[0087] Through the longitudinal limit sliding of the lower end of the edge groove driving rod 20 in the upper restraint longitudinal chute 6 and the inner restraint longitudinal chute 7 of the road pressing base 2, and then through the lower end of the edge groove driving rod 20 being fixed on the vibration top platform 22, the vibration top platform 22 slides on a plurality of spring shafts 23. A vibration spring 24 is sleeved on the spring shaft 23, and the vibration spring 24 is arranged between the vibration top platform 22 and the hydraulic driving base 10. Furthermore, combined with the turning grooves at the upper and lower ends of the driving edge groove 19 being symmetrically arranged on the periphery of the eccentric part of the driving disk 18, and the turning grooves at the left and right ends of the driving edge groove 19 being symmetrically arranged inside the eccentric part of the driving disk 18, and the adjacent turning grooves being connected by straight grooves; there is no resistance when the sliding ball rod 21 slides in the straight groove, and the vibration spring 24 drives the vibration top platform 22 to hammer on the inner wall of the pressing frame platform 11, thereby realizing the vibration effect; through the vibration of the hammering, the vibration road pressing effect is effectively improved.

[0088] At the same time, when using multiple driving disks 18 and installing the driving edge grooves 19 in different directions, different ranges and regular hammering can also be realized, thereby promoting the all-round hammering, improving the integrity of the vibration effect, and avoiding the situation of uneven vibration. Specific Embodiment Nine:

[0090] Such as Figures 1 - 11As shown in the figure, a method for improving the integrity of the cushion layer of mountain skin stones at the airport. The road pressing platform 5 includes an internal restraint longitudinal chute 7, a hydraulic cylinder seat 8, a hydraulic cylinder 9, a hydraulic drive base 10, and a pressing frame platform 11. The hydraulic cylinder 9 is fixed to the lower end of the road pressing base 2 through the hydraulic cylinder seat 8. The telescopic rod of the hydraulic cylinder 9 is fixed to the hydraulic drive base 10. An internal restraint longitudinal chute 7 is provided on the hydraulic drive base 10. The lower end of the hydraulic drive base 10 is fixed with a pressing frame platform 11. The inside of the pressing frame platform 11 is hollowed out. The vibrating top platform 22 is pressed tightly against the inner wall of the pressing frame platform 11. The vibrating spring 24 is arranged between the vibrating top platform 22 and the hydraulic drive base 10.

[0091] The working principle and beneficial effects of this embodiment are as follows: The hydraulic cylinder 9 is fixed to the lower end of the road pressing base 2 through the hydraulic cylinder seat 8, and the telescopic rod of the hydraulic cylinder 9 is fixed to the hydraulic drive base 10, driving the hydraulic drive base 10 and the pressing frame platform 11 downward to achieve the effect of static pressure; through the hollowing out inside the pressing frame platform 11, the vibrating top platform 22 is pressed tightly against the inner wall of the pressing frame platform 11, and the vibrating spring 24 is arranged between the vibrating top platform 22 and the hydraulic drive base 10, and then an effective vibrating effect is achieved after the static pressure is completed.

[0092] The above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions, or substitutions made by those of ordinary skill in the art within the scope of the essence of the present invention also belong to the protection scope of the present invention.

Claims

1. A method for improving the integrity of airport mountain stone cushion, characterized by: S1: Pump out the accumulated water from the airport's mountain stone cushion layer; S2: Lay a layer of geogrid on the natural ground over the entire width of the airport runway; S3: Lay the mountain stone cushion layer on the geogrid; S4: Use a vibrating roller to perform weak vibration and static pressure on the mountain stone cushion layer; S5: Then lay a layer of geogrid on the entire width of the mountain stone cushion layer to make the mountain stone cushion layer a whole with upper and lower constraints.

2. A method for improving the integrity of airport rock cushion according to claim 1, characterized in that: The S2 comprises the following steps: S21: When laying geogrids, ensure that adjacent geogrids overlap by 20 cm; S22: Use clip pins to secure the geogrid.

3. A method for improving the integrity of airport rock cushion according to claim 2, characterized in that: The S4 comprises the following steps: S41: Use a roller to perform static pressure 1 time and weak vibration 3 times on the mountain stone cushion layer; S42: After weak vibration, static pressure is applied once more to increase the solid volume ratio of the cushion layer.

4. A method for improving the integrity of airport rock cushion according to claim 1, characterized in that: The S5 includes: S51: When laying geogrids after compacting the road, ensure that adjacent geogrids overlap by 20 cm; S52: Use paper staples to secure the geogrid.

5. A method for improving the integrity of airport rock cushion according to claim 3, characterized in that: A vibrating roller is plugged and fixedly installed on the roller.

6. A method for improving the integrity of airport rock cushion according to claim 5, characterized in that: The vibratory roller comprises a front baffle plate (1) of the roller, a roller base (2), a vibration driver (3), a vibrator (4) and a road pressing platform (5), wherein the front baffle plate (1) of the roller is fixed on the roller, the front baffle plate (1) of the roller is plugged and fixed on the roller base (2), a vibration driver (3) is rotatably arranged on the roller base (2), and a plurality of vibrators (4) are fixed on the vibration driver (3) to vibrate and hammer the inside of the road pressing platform (5).

7. A method for improving the integrity of airport rock cushion according to claim 6, characterized in that: The roller base (2) is provided with a connecting slot (12), and the roller front baffle plate (1) is connected and used by plugging into the connecting slot (12). The part of the roller front baffle plate (1) that passes through the connecting slot (12) is provided with a locking slot, and the locking slot is plugged into a locking plug block (13) for locking. The locking plug block (13) is connected to the roller base (2) through a screw at the upper end for locking after connection.

8. A method for improving the integrity of airport rock cushion according to claim 6, characterized in that: The vibration driver (3) comprises a hydraulic motor (14), a worm (15), a turbine drive center shaft (16) and a bearing seat (17); the hydraulic motor (14) drives the worm (15) to rotate on the side end of the roller base (2) through the support seat; the worm (15) drives the turbine drive center shaft (16) to rotate in the roller base (2) through the worm gear; the turbine drive center shaft (16) rotates in the roller base (2) through the bearing seat (17).

9. A method for improving the integrity of airport rock cushion according to claim 8, characterized in that: The vibrator (4) comprises a driving disk (18), a driving groove (19), a driving rod (20) along the groove and a sliding ball rod (21). Two symmetrical driving grooves (19) are respectively arranged on both sides of the driving disk (18). Two sliding ball rods (21) are respectively arranged in the two driving grooves (19) for sliding. Balls are arranged in the sliding ball rods (21) through the ball grooves for sliding. The two sliding ball rods (21) are both fixed on the driving rod (20) along the groove. The vibrator (4) further comprises a vibrating top platform (22), a spring shaft (23) and a vibrating spring (24); the lower end of the groove driving rod (20) slides longitudinally in the upper restraining longitudinal slide groove (6) of the road pressing base (2); the lower end of the upper restraining longitudinal slide groove (6) is connected to the inner restraining longitudinal slide groove (7) of the road pressing platform (5); the lower end of the groove driving rod (20) is fixed on the vibrating top platform (22); the vibrating top platform (22) is sleeved on a plurality of spring shafts (23); the spring shafts (23) are sleeved with a vibrating spring (24); the vibrating spring (24) is arranged between the vibrating top platform (22) and the road pressing platform (5); The turning grooves at the upper and lower ends of the driving groove (19) are symmetrically arranged on the periphery of the eccentric part of the driving plate (18), and the turning grooves at the left and right ends of the driving groove (19) are symmetrically arranged on the inner side of the eccentric part of the driving plate (18), and the adjacent turning grooves are connected by straight grooves.

10. A method for improving the integrity of airport rock cushion according to claim 9, characterized in that: The road pressing platform (5) comprises an inner restraining longitudinal slide groove (7), a hydraulic cylinder seat (8), a hydraulic cylinder (9), a hydraulic drive base (10) and a pressing frame platform (11); the hydraulic cylinder (9) is fixed to the lower end of the road pressing base (2) through the hydraulic cylinder seat (8); the telescopic rod of the hydraulic cylinder (9) is fixed to the hydraulic drive base (10); the hydraulic drive base (10) is provided with an inner restraining longitudinal slide groove (7); the lower end of the hydraulic drive base (10) is fixed with a pressing frame platform (11); the interior of the pressing frame platform (11) is hollow; the vibrating top platform (22) is pressed against the inner wall of the pressing frame platform (11); and the vibrating spring (24) is provided between the vibrating top platform (22) and the hydraulic drive base (10).

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