A roadbed support structure

Abstract

This invention belongs to the field of building construction technology, specifically a roadbed support structure, including piles; two piles are provided, with the length of one pile being half the length of the other; a top plate is fixedly connected to the top of each pile; a fixing seat is fixedly connected to the side wall of each pile, and two fixing seats are set on the opposite side walls of the two piles; a fixing block is fixedly connected to the inside of each fixing seat by fixing bolts; by using a vibratory hammer to compact the piles into the soil, and then pouring concrete into the piles, and by using a first sliding rod and a second sliding rod to support the two piles, this structural design effectively prevents the soil around the pile pit from easily collapsing into the pile pit, effectively solving the problem that the soil around the pile pit easily collapses into the pile pit during the formation of the pile pit and the solidification of the concrete, which affects the subsequent construction of the cast-in-place piles.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, specifically a roadbed support structure. Background Technology

[0002] The roadbed refers to the foundation of the road surface. It is a structure formed by excavation or filling. The roadbed is mainly used to provide the necessary conditions for the paving of the road surface and for driving. It can also support the road surface and the load of vehicles on the road surface, and can transfer the load into the interior of the foundation for the transfer and diffusion of the load.

[0003] To ensure the stability and safety of the roadbed and pavement, the sides of the roadbed need to be supported. The typical support structure usually consists of support piles and anti-lateral displacement piles. The support piles are mainly in contact with the roadbed and provide support for the roadbed, while the anti-lateral displacement piles mainly support the stability of the support piles.

[0004] During roadbed construction, it is necessary to drill pile pits in the soil to support the roadbed, and then pour concrete into the pile pits. However, when the soil in the construction environment is relatively loose, the soil around the pile pit is prone to collapse into the pile pit during the formation of the pile pit and the solidification of the concrete, which will affect the subsequent construction of the cast-in-place piles.

[0005] Therefore, the present invention provides a roadbed support structure. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this invention to solve its technical problem is as follows: A roadbed support structure according to this invention includes piles; two piles are provided, and the length of one pile is half the length of the other; a top plate is fixedly connected to the top of each pile; a fixing seat is fixedly connected to the side wall of each pile, and two fixing seats are arranged on opposite side walls of the two piles; a fixing block is fixedly connected inside the fixing seat by fixing bolts; a first sliding rod is rotatably connected inside one of the fixing blocks, and a second sliding rod is rotatably connected inside the other fixing block; the first sliding rod is slidably connected inside the second sliding rod; a fixing tooth is rotatably connected to the end of the second sliding rod by a torsion spring; a fixing groove is opened on the side wall of the first sliding rod; the fixing groove and the fixing tooth are correspondingly arranged; a through hole is opened inside the fixing seat; this effectively solves the problem that during the formation of the pile pit and the solidification of concrete, the soil around the pile pit easily collapses into the pile pit, affecting the subsequent construction of cast-in-place piles.

[0008] Preferably, the pile rod has a reverse tooth rotatably connected internally; the tip of the reverse tooth faces the opposite direction to the tip of the pile rod; a deflection plate is fixedly connected to the side wall of the reverse tooth; the deflection plate is located at a position inside the corresponding pile rod; a push plate is slidably connected internally to the pile rod; the push plate is located at the bottom of the corresponding pile rod; a push rod is fixedly connected to the top of the push plate; the other end of the push rod is fixedly connected to the bottom position of the deflection plate; contact grooves are formed on the top and bottom side walls of the deflection plate; a sealing strip is fixedly connected internally to the pile rod; the sealing strip is located at the position of the top contact groove; this reduces the likelihood of the reverse tooth deflecting.

[0009] Preferably, the pile has multiple vibration grooves inside; the vibration grooves are located at the center of the corresponding pile; the vibration grooves are arranged in a linear array inside the pile; multiple connecting rods are fixed to the outer wall of the vibration groove, and the other end of the connecting rod is fixed to the inner wall of the pile; making the concrete structure more stable.

[0010] Preferably, the pile has multiple discharge cavities on its sidewall; the discharge cavities are arranged in a linear array on the sidewall of the pile, so that the pile can maintain better stability inside the soil.

[0011] Preferably, a transmission rod is fixed to the inner wall of the pile rod; the transmission rods are arranged in a circular array on the inner wall of the pile rod; this makes the effect of eliminating gaps between concrete better.

[0012] Preferably, a contact plate is rotatably connected to the end of the push plate; the contact plate is located at the end of the push plate away from the push rod; the contact plate is arc-shaped, and the concave surface of the arc faces the bottom end of the push plate; thus, the soil provides better support for the pile rod.

[0013] Preferably, a sliding plate is slidably connected inside the fixing bolt; a connecting rod is fixedly connected to the bottom of the sliding plate; a contact block is fixedly connected to the bottom end of the connecting rod; and a spring is fixedly connected between the top of the sliding plate and the side wall of the fixing bolt, thereby improving the fixing effect of the fixing bolt on the fixing block.

[0014] Preferably, multiple vertical plates are fixed to the outer wall of the pile; the vertical plates are arranged in a circular array on the outer wall of the pile; this can improve the soil's support effect on the pile.

[0015] Preferably, the vertical plate has grooves on its sidewalls; the grooves are symmetrically arranged on the sidewalls of the vertical plate; this allows for better fixation of the soil to the vertical plate.

[0016] Preferably, the sliding plate has a ball bearing inside for fastening; the sidewall of the ball bearing contacts the inner sidewall of the fixing bolt; thus reducing wear between the sliding plate and the fixing bolt.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The roadbed support structure of the present invention uses a vibratory hammer to drive piles into the soil, then pours concrete into the piles, and supports the two piles with a first sliding rod and a second sliding rod. This structure effectively prevents the soil around the pile pit from easily collapsing into the pile pit, thus effectively solving the problem that the soil around the pile pit easily collapses into the pile pit during the formation of the pile pit and the solidification of the concrete, which affects the subsequent construction of the cast-in-place piles.

[0019] 2. The roadbed support structure of the present invention, by setting a reverse tooth at the bottom end of the pile and setting a push plate to push the deflection plate on the side of the reverse tooth, realizes the function of increasing the contact area between the pile and the soil, so as to improve the soil's fixing effect on the pile. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 It is a perspective view of the present invention;

[0022] Figure 2 This is a partial structural schematic diagram of the first sliding rod in this invention;

[0023] Figure 3 This is a partial structural diagram of the fixed tooth in this invention;

[0024] Figure 4 This is a cross-sectional view of the pile in this invention;

[0025] Figure 5 This is a cross-sectional view of the reverse teeth in this invention;

[0026] Figure 6 This is a partial structural schematic diagram of the transmission rod in this invention;

[0027] Figure 7 This is a cross-sectional view of the fixing bolt in this invention.

[0028] In the diagram: 1. Pile rod; 2. Top plate; 3. Fixing seat; 4. Fixing block; 5. Fixing bolt; 6. First sliding rod; 7. Second sliding rod; 8. Fixing groove; 9. Fixing tooth; 10. Reverse tooth; 11. Deflection plate; 12. Push plate; 13. Push rod; 14. Contact groove; 15. Sealing strip; 16. Vibration groove; 17. Discharge cavity; 18. Conducting rod; 19. Contact plate; 20. Sliding plate; 21. Connecting rod; 22. Contact block; 23. Vertical plate; 24. Groove; 25. Ball bearing. Detailed Implementation

[0029] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0030] like Figures 1 to 3 As shown in the embodiment of the present invention, a roadbed support structure includes piles 1; two piles 1 are provided, and the length of one pile 1 is half the length of the other; a top plate 2 is fixedly connected to the top of the pile 1; a fixing seat 3 is fixedly connected to the side wall of the pile 1, and two fixing seats 3 are arranged on the opposite side walls of the two piles 1; a fixing block 4 is fixedly connected to the inside of the fixing seat 3 by fixing bolts 5; a first sliding rod 6 is rotatably connected inside one of the fixing blocks 4, and a second sliding rod 7 is rotatably connected inside the other fixing block 4; the first sliding rod 6 is slidably connected inside the second sliding rod 7; the second sliding rod 7 is slidably connected inside the second sliding rod 7. The end of rod 7 is rotatably connected to a fixed tooth 9 via a torsion spring; a fixed groove 8 is provided on the side wall of the first sliding rod 6; the fixed groove 8 and the fixed tooth 9 are correspondingly arranged; a through hole is provided inside the fixed seat 3; during operation, when road repairs are required, one side of the road can be closed first, and then pile rods 1 can be driven into the soil using vibratory hammers or other pile-tamping equipment. The longer pile rods 1 can be used as support piles, and the shorter pile rods 1 can be used as anti-lateral displacement piles. It should be noted that the longer pile rods 1 should be placed close to the roadbed, and the shorter pile rods 1 should be placed adjacent to the longer pile rods 1. The distance between the two pile rods 1 should be... As required, during the process of ramming the pile 1 into the soil, the top plate 2 can effectively increase the contact area between the pile 1 and the ramming equipment, making it easier for the equipment to ram the pile 1 into the soil. After the pile 1 is rammed into the soil, the pile 1 can support the pile pit, effectively preventing the soil around the pile pit from collapsing into the pile pit. Then, concrete can be poured into the pile 1 to reinforce it. After that, the two fixing blocks 4 can be fixed to the fixing seats 3 set on the side of the pile 1 by fixing bolts 5. One of the fixing blocks 4 can be installed first, and then the fixing teeth 9 can be pulled up. First, the first sliding rod 6 is retracted. The second sliding rod 7 moves inside, which in turn pulls another fixed block 4, fixing it inside another fixed seat 3 with a fixing bolt 5. This allows the first sliding rod 6 and the second sliding rod 7 to better adapt to the distance between the two fixed blocks 4. The first sliding rod 6 and the second sliding rod 7 support the two piles 1. After the piles 1 are installed, the waist beam and the crown beam can be inserted into the through holes opened inside the fixed seat 3 to fix the multiple parallel piles 1. After the piles 1 are installed, the roadbed can be constructed. After the roadbed is constructed, the traffic direction can be changed, and the road surface on the other side can be constructed in the same way.

[0031] like Figures 4 to 5 As shown, a reverse tooth 10 is rotatably connected inside the pile rod 1; the tip of the reverse tooth 10 faces the opposite direction to the tip of the pile rod 1; a deflection plate 11 is fixedly connected to the side wall of the reverse tooth 10; the deflection plate 11 is positioned inside the corresponding pile rod 1; a push plate 12 is slidably connected inside the pile rod 1; the push plate 12 is positioned at the bottom of the corresponding pile rod 1; a push rod 13 is fixedly connected to the top of the push plate 12; the other end of the push rod 13 is fixedly connected to the bottom of the deflection plate 11; the deflection plate 11... Contact grooves 14 are provided on both the top and bottom sidewalls of the pile rod 1; a sealing strip 15 is fixedly connected inside the pile rod 1; the sealing strip 15 is positioned at the corresponding top contact groove 14; during operation, when the pile rod 1 is driven into the soil, the push plate 12 is blocked by the soil at the bottom of the pile rod 1 and slides inward, which in turn pushes the deflection plate 11 through the rubber push rod 13, thereby causing the reverse teeth 10 to deflect outward, so that after the pile rod 1 enters the soil, the reverse teeth 10 can increase the contact between the pile rod 1 and the soil. The increased contact area improves the soil's fixation of the pile 1. When pouring concrete into the pile 1, the concrete should be poured slowly initially to minimize the impact on the deflector plate 11, preventing the deflector plate 11 from being impacted and causing the reverse gear 10 to rotate. Once the amount of concrete reaches half the height of the pile 1, the concrete can be poured at a normal speed. As the concrete flows into the bottom of the deflector plate 11, it will wrap and support the area around the deflector plate 11. After the concrete dries, the deflector plate 11 can be... The support reduces the likelihood of the reverse teeth 10 deflecting. The contact groove 14 at the bottom of the deflecting plate 11 increases the contact area between the concrete and the deflecting plate 11, increasing the friction between them and improving the support effect of the concrete on the deflecting plate 11. Furthermore, when the deflecting plate 11 deflects, the contact groove 14 at the top of the deflecting plate 11 engages with the sealing strip 15 inside the pile rod 1, further increasing the friction between them and thus reducing the likelihood of the reverse teeth 10 deflecting.

[0032] like Figure 4As shown, the pile rod 1 has multiple vibration grooves 16 inside; the vibration grooves 16 are located at the center of the corresponding pile rod 1; the vibration grooves 16 are arranged in a linear array inside the pile rod 1; multiple connecting rods are fixed to the outer side wall of the vibration grooves 16, and the other end of the connecting rods is fixed to the inner side wall of the pile rod 1; during operation, after concrete is poured into the pile rod 1, a vibrating rod can be inserted into the pile rod 1 through the top plate 2, and the vibrating rod can be slowly pulled up and released to shake out the voids inside the concrete, making the concrete structure more stable. Through the positioning of the vibration grooves 16, the vibrating rod can be better kept vertical when vibrating the concrete, so that the vibrating rod can be better inserted into the bottom position of the pile rod 1. At the same time, the connecting rods can act as the keel of the concrete, making the concrete structure more stable.

[0033] like Figure 1 and Figure 4 As shown, multiple discharge cavities 17 are provided on the side wall of the pile rod 1; the discharge cavities 17 are arranged in a linear array on the side wall of the pile rod 1; during operation, when concrete is poured into the interior of the pile rod 1, the concrete can flow out of the pile rod 1 through the discharge cavities 17 and spread into the soil outside the pile rod 1. Since the concrete is not very fluid, it will form a hemispherical concrete block on the outside of the pile rod 1, thereby increasing the contact area between the pile rod 1 and the soil, and making the pile rod 1 more stable inside the soil.

[0034] like Figure 4 and Figure 6 As shown, a transmission rod 18 is fixedly connected to the inner wall of the pile rod 1; the transmission rod 18 is arranged in a circular array on the inner wall of the pile rod 1; during operation, after concrete is poured into the pile rod 1, the concrete inside the pile rod 1 can be vibrated by tapping the top of the top plate 2 and using a vibrator, which can reduce the gaps in the concrete inside the pile rod 1. By setting the transmission rod 18 inside the pile rod 1, the vibration generated by the tapping can be better transmitted to the inside of the pile rod 1, which can improve the effect of eliminating gaps between the concrete.

[0035] like Figure 5As shown, a contact plate 19 is rotatably connected to the end of the push plate 12; the contact plate 19 is located at the end of the push plate 12 away from the push rod 13; the contact plate 19 is arc-shaped, and the concave surface of the arc faces the bottom of the push plate 12; during operation, when the push plate 12 contacts the interior of the soil, the contact plate 19 at the bottom of the push plate 12 increases the contact area between the push plate 12 and the soil, thereby improving the pushing effect of the soil on the push plate 12. At the same time, when the push plate 12 retracts into the interior of the pile rod 1, the contact plate 19 deflects and adheres to the outer wall of the pile rod 1. The concave surface of the contact plate 19 further increases the contact area between the pile rod 1 and the soil, resulting in better support from the soil for the pile rod 1.

[0036] like Figure 2 and Figure 7 As shown, a sliding plate 20 is slidably connected inside the fixing bolt 5; a connecting rod 21 is fixedly connected to the bottom of the sliding plate 20; a contact block 22 is fixedly connected to the bottom end of the connecting rod 21; a spring is fixedly connected between the top of the sliding plate 20 and the side wall of the fixing bolt 5; during operation, when the fixing bolt 5 is used to fix the fixing block 4, as the fixing bolt 5 is screwed into the threaded hole, the contact block 22 will first contact the side wall of the fixing block 4, and then after the fixing bolt 5 is screwed in, the sliding plate 20 will squeeze the spring, and then the spring force will push the sliding plate 20, which can make the friction between the fixing bolt 5 and the threaded hole of the fixing seat 3 greater, so that the fixing bolt 5 fixes the fixing block 4 better.

[0037] like Figure 1 and Figure 6 As shown, multiple vertical plates 23 are fixed to the outer wall of the pile 1; the vertical plates 23 are arranged in a circular array on the outer wall of the pile 1; during operation, after the pile 1 is driven into the soil, the vertical plates 23 can support the soil outside the pile 1, making the soil less prone to loosening, and increasing the contact area between the pile 1 and the soil, thereby improving the soil's support effect on the pile 1.

[0038] like Figure 6 As shown, a groove 24 is provided on the side wall of the vertical plate 23; the grooves 24 are symmetrically arranged on the side wall of the vertical plate 23; during operation, when the soil compresses and fixes the vertical plate 23, by providing the grooves 24 on the side wall of the vertical plate 23, the contact area between the soil and the vertical plate 23 can be increased, thereby improving the soil's fixing effect on the vertical plate 23.

[0039] like Figure 7As shown, a ball bearing 25 is fastened to the inside of the sliding plate 20; the side wall of the ball bearing 25 contacts the inner side wall of the fixing bolt 5; during operation, when the sliding plate 20 slides inside the fixing bolt 5, the ball bearing 25 fastened to the inside of the sliding plate 20 can change the sliding friction between the sliding plate 20 and the fixing bolt 5 into rolling friction, thereby reducing the friction between the sliding plate 20 and the fixing bolt 5 and reducing the wear between the sliding plate 20 and the fixing bolt 5.

[0040] When highway repair work is required, one side of the road can be closed first. Then, vibratory hammers or other pile-tamping equipment can be used to drive piles 1 into the soil. Longer piles 1 can serve as retaining piles, while shorter piles 1 can serve as anti-lateral displacement piles. It is important to note that longer piles 1 should be placed close to the roadbed, while shorter piles 1 should be placed adjacent to them. The distance between the two piles 1 must be set according to requirements. During the tamping process, the top plate 2 effectively increases the contact area between the piles 1 and the tamping equipment, making it easier for the equipment to drive the piles 1 into the soil. After the piles 1 are driven into the soil, they support the pile pit, effectively preventing the surrounding soil from collapsing into the pit. Concrete can then be poured into the piles 1 to reinforce them. Then, the two fixing blocks 4 can be fixed to the fixing seats 3 set on the side of the pile rod 1 by fixing bolts 5. One fixing block 4 can be installed first, and then the fixing teeth 9 can be pulled up. First, the first sliding rod 6 is retracted into the second sliding rod 7, and then the other fixing block 4 is pulled and fixed to the other fixing seat 3 by fixing bolts 5. This allows the first sliding rod 6 and the second sliding rod 7 to better adapt to the distance between the two fixing blocks 4. The first sliding rod 6 and the second sliding rod 7 support the two pile rods 1. After the pile rods 1 are installed, the waist beam and the crown beam can be inserted into the through holes opened in the fixing seat 3 to fix the multiple parallel pile rods 1. After the pile rods 1 are constructed, the roadbed can be constructed. After the roadbed is constructed, the traffic direction can be changed and the road surface on the other side can be constructed in the same way.

[0041] When the pile 1 is driven into the soil, the push plate 12, blocked by the soil at the bottom of the pile 1, slides inward. This allows the rubber push rod 13 to push the deflection plate 11, causing the reverse teeth 10 to deflect outward. This increases the contact area between the pile 1 and the soil after it enters the ground, improving the soil's fixation of the pile 1. Simultaneously, when pouring concrete into the pile 1, the concrete should be poured slowly initially to minimize the impact on the deflection plate 11, preventing the deflection plate 11 from being impacted and causing the reverse teeth 10 to rotate. Once the amount of concrete poured reaches half the height of the pile 1, the pouring can proceed at the normal speed. When concrete is poured, it flows into the bottom of the deflector plate 11 and wraps around and supports the deflector plate 11. After the concrete dries, it supports the deflector plate 11, thus reducing the likelihood of the reverse teeth 10 deflecting. The contact groove 14 at the bottom of the deflector plate 11 increases the contact area between the concrete and the deflector plate 11, increasing the friction between them and improving the support effect of the concrete on the deflector plate 11. At the same time, when the deflector plate 11 deflects, the contact groove 14 at the top of the deflector plate 11 engages with the sealing strip 15 inside the pile rod 1, increasing the friction between the deflector plate 11 and the pile rod 1, thus reducing the likelihood of the reverse teeth 10 deflecting.

[0042] After the concrete is poured into the pile 1, a vibrator can be inserted into the pile 1 through the top plate 2 and slowly pulled up to release the vibrator, shaking out the voids inside the concrete, making the concrete structure more stable. The positioning of the vibrating groove 16 allows the vibrator to remain vertical better when vibrating the concrete, allowing it to be better inserted into the bottom position of the pile 1. At the same time, the connecting rod can act as the keel of the concrete, making the concrete structure more stable.

[0043] After the concrete is poured into the pile 1, it can flow out of the pile 1 through the discharge cavity 17 and spread into the soil outside the pile 1. Since the concrete is not very fluid, it will form a hemispherical concrete block on the outside of the pile 1, which will increase the contact area between the pile 1 and the soil and make the pile 1 more stable inside the soil.

[0044] After the concrete is poured into the pile 1, the concrete inside the pile 1 can be compacted by tapping the top of the top plate 2 and using a vibrator. This reduces the voids inside the pile 1. By setting a transmission rod 18 inside the pile 1, the vibration generated by the tapping can be better transmitted to the inside of the pile 1, which can improve the effect of eliminating voids between the concrete.

[0045] When the push plate 12 comes into contact with the interior of the soil, the contact plate 19 at the bottom of the push plate 12 increases the contact area between the push plate 12 and the soil, thereby improving the pushing effect of the soil on the push plate 12. At the same time, when the push plate 12 retracts into the interior of the pile rod 1, the contact plate 19 will deflect and adhere to the outer wall of the pile rod 1. The concave surface of the contact plate 19 increases the contact area between the pile rod 1 and the soil, thus improving the support effect of the soil on the pile rod 1.

[0046] When the fixing bolt 5 is used to fix the fixing block 4, during the process of screwing the fixing bolt 5 into the threaded hole, the contact block 22 will first contact the side wall of the fixing block 4. After the fixing bolt 5 is screwed in, the sliding plate 20 will squeeze the spring, and then push the sliding plate 20 through the elastic force of the spring. This makes the friction between the fixing bolt 5 and the threaded hole of the fixing seat 3 greater, and makes the fixing bolt 5 fix the fixing block 4 better.

[0047] After the pile 1 is driven into the soil, the vertical plate 23 can support the soil outside the pile 1, making the soil less loose and increasing the contact area between the pile 1 and the soil, thus making the soil support the pile 1 better.

[0048] When the soil compresses and fixes the vertical plate 23, the contact area between the soil and the vertical plate 23 can be increased by opening grooves 24 on the side wall of the vertical plate 23, thereby making the soil fixation effect on the vertical plate 23 better.

[0049] When the sliding plate 20 slides inside the fixing bolt 5, the ball bearing 25 is fastened inside the sliding plate 20, which changes the sliding friction between the sliding plate 20 and the fixing bolt 5 into rolling friction. This reduces the friction between the sliding plate 20 and the fixing bolt 5, resulting in less wear between them.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A roadbed support structure, characterized in that: The system includes two piles (1), one of which is half the length of the other. A top plate (2) is fixed to the top of each pile (1). A fixing seat (3) is fixed to the side wall of each pile (1), and the two fixing seats (3) are located on opposite side walls of the two piles (1). A fixing block (4) is fixed inside the fixing seat (3) by fixing bolts (5). A first sliding rod (6) is rotatably connected inside one of the fixing blocks (4), and a second sliding rod (7) is rotatably connected inside the other fixing block (4). The first sliding rod (6) is slidably connected inside the second sliding rod (7). A fixing tooth (9) is rotatably connected to the end of the second sliding rod (7) by a torsion spring. A fixing groove (8) is provided on the side wall of the first sliding rod (6). The fixing groove (8) and the fixing tooth (9) are correspondingly arranged. A through hole is provided inside the fixing seat (3). The pile rod (1) is internally rotatably connected with a reverse tooth (10); the tip of the reverse tooth (10) faces the opposite direction to the tip of the pile rod (1); a deflection plate (11) is fixedly connected to the side wall of the reverse tooth (10); the deflection plate (11) is located at a position inside the corresponding pile rod (1); a push plate (12) is slidably connected inside the pile rod (1); the push plate (12) is located at the bottom position of the corresponding pile rod (1); a push rod (13) is fixedly connected to the top of the push plate (12); the other end of the push rod (13) is fixedly connected to the bottom position of the deflection plate (11); contact grooves (14) are provided on the top and bottom side walls of the deflection plate (11); a sealing strip (15) is fixedly connected inside the pile rod (1); the sealing strip (15) is located at the position of the corresponding top contact groove (14); The end of the push plate (12) is rotatably connected to a contact plate (19); the contact plate (19) is located at the end of the push plate (12) away from the push rod (13); the contact plate (19) is arc-shaped, and the concave surface of the arc faces the bottom of the push plate (12).

2. The roadbed support structure according to claim 1, characterized in that: The pile (1) is provided with multiple vibration grooves (16) inside; the vibration grooves (16) are set at the center of the corresponding pile (1); the vibration grooves (16) are arranged in a linear array inside the pile (1); multiple connecting rods are fixed to the outer wall of the vibration grooves (16), and the other end of the connecting rod is fixed to the inner wall of the pile (1).

3. The roadbed support structure according to claim 2, characterized in that: Multiple discharge cavities (17) are provided on the side wall of the pile rod (1); the discharge cavities (17) are arranged in a linear array on the side wall of the pile rod (1).

4. A roadbed support structure according to claim 3, characterized in that: A transmission rod (18) is fixed to the inner wall of the pile (1); the transmission rod (18) is arranged in a circular array on the inner wall of the pile (1).

5. A roadbed support structure according to claim 1, characterized in that: A sliding plate (20) is slidably connected inside the fixing bolt (5); a connecting rod (21) is fixedly connected to the bottom of the sliding plate (20); a contact block (22) is fixedly connected to the bottom end of the connecting rod (21); and a spring is fixedly connected between the top of the sliding plate (20) and the side wall of the fixing bolt (5).

6. A roadbed support structure according to claim 4, characterized in that: Multiple vertical plates (23) are fixed to the outer wall of the pile (1); the vertical plates (23) are arranged in a circular array on the outer wall of the pile (1).

7. A roadbed support structure according to claim 6, characterized in that: The vertical plate (23) has a groove (24) on its side wall; the groove (24) is symmetrically arranged on the side wall of the vertical plate (23).

8. A roadbed support structure according to claim 5, characterized in that: The sliding plate (20) is internally connected to a ball bearing (25); the sidewall of the ball bearing (25) is in contact with the inner sidewall of the fixing bolt (5).

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