Reinforcing structure of soft soil foundation road and construction method of reinforcing structure

Abstract

The invention relates to the technical field of foundation reinforcement, and discloses a soft soil foundation road reinforcement structure and a construction method thereof.The soft soil foundation road reinforcement structure comprises reinforcement supports, bearing ground beams, side edge protection plates and composite reinforcement piles, the reinforcement supports are arranged on the two sides of a soft soil foundation road respectively, and the bearing ground beams are embedded in the soft soil foundation road; according to the reinforcing structure of the soft soil foundation road, by arranging the reinforcing supports, the bearing ground beams and the side protection plates, the reinforcing supports are used for supporting the bearing ground beams, so that when the bearing ground beams bear pressure from the upper portion, the reinforcing supports and the side protection plates apply pressure to the inner side of the road, deformation and sinking of the soft soil foundation are avoided, and the compression resistance of the soft soil foundation is improved; and meanwhile, by arranging lime piles, the strength and stability of foundation soil are improved, all the composite reinforcing piles are relatively fixed in cooperation with arrangement of reinforced concrete piles, connecting frames and longitudinal rods, and the situation that the single composite reinforcing pile gradually inclines due to the fact that the soft soil foundation is pressed to move is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of foundation reinforcement, and specifically to a reinforcement structure for a soft soil foundation road and its construction method. Background Art

[0002] A soft soil foundation is a poor foundation composed of silt, silty soil, fill soil, miscellaneous fill or other highly compressible soil layers. It has significant characteristics such as high water content, large void ratio, high compressibility, and limited bearing capacity. When carrying out projects such as the construction of a soft soil foundation road on a soft soil foundation, problems such as settlement, deformation, and even collapse are likely to occur, seriously affecting the stability and durability of the project. Therefore, it is extremely crucial to reinforce the soft soil foundation.

[0003] The soft soil subgrade has relatively large compressibility and rheology, and is extremely prone to uneven settlement under the action of load. Usually, the construction process is to remove the floating soil on the base layer, preload the base layer using the preloading method, and then lay fine sand and gravel, waste slag, etc. as the cushion layer. After compaction, the normal concrete laying process for the soft soil foundation road is carried out. During laying, only drainage ditches are opened on both sides of the soft soil foundation road for drainage; however, the soft soil subgrade has poor water permeability. When the water on the surface layer of the soft soil foundation road seeps down, it is impossible to ensure that the accumulated water is drained in time, affecting the stability of the subgrade, and thus leading to local collapse of the subgrade.

[0004] Chinese Patent Application CN119411436A discloses a reinforcement structure for a soft soil foundation road and its construction method. By setting core piles, geogrid layers, and cushion layers, the soft soil layer is reinforced to control the uneven settlement of the subgrade; however, this structure lacks the reinforcement effect on the slopes of the soft soil foundation road. When under heavy pressure, the pressure at the edge of the soft soil foundation road cannot be well dispersed. Especially for relatively narrow soft soil foundation roads, the edges of the soft soil foundation road are more likely to be under pressure, and it is easy to have subgrade deformation at the edge position of the soft soil foundation road and gradually spread towards the middle of the soft soil foundation road. Moreover, the soft soil foundation moves.

[0005] Chinese Patent CN114318987B discloses a reinforcement structure for a high-speed soft soil foundation road. By setting connecting pipes, side guard plates, and locking mechanisms, when the connecting pipes generate a downward moving force as the subgrade is compressed, the side guard plates on both sides are pulled to squeeze the slopes of the subgrade, thereby generating a force to resist the sinking of the soft soil foundation road and improving the compressive performance of the soft soil foundation road; however, in this structure, the two sides are connected by connecting pipes, and local positions of the connecting pipes crossing the subgrade are prone to fracture or deformation when being under relatively large pressure for a long time. Summary of the Invention

[0006] In view of the deficiencies of the prior art, the present invention provides a reinforcement structure for a soft soil foundation road and its construction method, which has the function of reinforcing the interior and sides of the soft soil foundation road. At the same time, the structure is firm and not easily damaged, solving the problems mentioned in the above background art.

[0007] To solve the above technical problems, the present invention provides the following technical solutions: A reinforcement structure for a soft soil foundation road includes reinforcement supports, load-bearing ground beams, side guards, and composite reinforcement piles. The reinforcement supports are respectively arranged on both sides of the soft soil foundation road. The load-bearing ground beams are buried inside the soft soil foundation road. The two ends of the load-bearing ground beams are fixedly connected to the opposite reinforcement supports. The two ends of the side guards are fixedly connected to the reinforcement supports on the same side. Both the reinforcement supports and the side guards are closely attached to the side of the soft soil foundation road. The composite reinforcement piles are buried in the soft soil foundation road in a rectangular array. There are connecting frames and longitudinal bars arranged between the composite reinforcement piles. The composite reinforcement piles in the same row are connected and fixed by the connecting frames. Adjacent connecting frames are connected and fixed by the longitudinal bars. The composite reinforcement pile includes a lime pile and a reinforced concrete pile. The lime pile is arranged in the soft soil under the soft soil foundation road. The reinforced concrete pile is fixed at the upper end of the lime pile, and the upper end of the reinforced concrete pile is buried in the building materials that make up the soft soil foundation road.

[0008] Preferably, a stepped groove is provided on the side wall of the reinforcement support close to the soft soil foundation road. The end of the side guard is fitted and clamped with the stepped groove. A reinforcement plate is fixedly installed on the side wall of the side guard close to the soft soil foundation road. The reinforcement plate is inserted into the building materials that make up the soft soil foundation road. The reinforcement plate includes a connecting part, a supporting part, and an inclined surface part. The ends of the connecting part, the supporting part, and the inclined surface part are fixedly connected in sequence. The connecting part is fixedly installed on the reinforcement support.

[0009] Preferably, a planting plate is fixedly installed on the side wall of the side guard away from the road base layer. The planting plate is in close contact with the foundation outside the soft soil foundation road. A planting groove is provided on the upper surface of the planting plate. A planting hole is provided in the middle of the planting groove. A drainage opening is provided on the planting groove.

[0010] Preferably, the lime pile is made by filling filler into a pre-formed hole in the ground and tamping it. A pile hole is provided at the upper end of the lime pile. The reinforced concrete pile is inserted and installed inside the pile hole. A pile-passing opening is provided on the connecting frame. The reinforced concrete pile passes through the pile-passing opening, and the upper end of the reinforced concrete pile extends above the connecting frame. The top height of the reinforced concrete pile is flush with the top height of the load-bearing ground beam.

[0011] Preferably, the reinforced concrete pile is a prestressed concrete pipe pile. The bottom of the prestressed concrete pipe pile penetrates below the lime pile and contacts the foundation of the soft soil foundation road. The inside of the prestressed concrete pipe pile is filled with water-permeable filler.

[0012] Preferably, long convex strips and short convex strips are arranged on the lower surface of the connecting frame. The bottom surface of the longitudinal rod fits against the upper surface of the connecting frame, and the longitudinal rod and the connecting frame are fixed by bolts.

[0013] Preferably, a pipe-passing hole is formed inside the load-bearing ground beam, a jack is formed on the reinforcement support, the positions of the jack and the pipe-passing hole are opposite, a ventilation drain pipe is inserted and fixed between the opposite jacks, the ventilation drain pipe is sleeved inside the pipe-passing hole, a water-permeable ventilation hole penetrating into the inside of the pipe-passing hole is formed on the side wall of the load-bearing ground beam, a ventilation hole communicated with the water-permeable ventilation hole is formed on the ventilation drain pipe, and filter nets are installed at both ends of the ventilation drain pipe. There is a gap between the outer wall of the ventilation drain pipe and the inner wall of the pipe-passing hole, and water-permeable filler is filled in the gap between the ventilation drain pipe and the pipe-passing hole.

[0014] Preferably, an embedding groove is formed on the reinforcement support, the embedding groove communicates with the pipe-passing hole, the ventilation drain pipe is arranged inside the embedding groove, and there is a gap between the outer wall of the ventilation drain pipe and the inner side wall of the embedding groove.

[0015] Preferably, a diversion channel is formed inside the longitudinal rod, a guide hole is formed at the bottom of the diversion channel, the guide hole penetrates through the inner wall of the diversion channel and extends to the outside of the longitudinal rod, and both ends of the longitudinal rod are close to the side wall of the load-bearing ground beam.

[0016] The present invention also discloses a construction method for reinforcing a soft soil foundation road. The specific steps are as follows: Level the site, install a protection project at the construction site, and excavate a drainage trough; Perform subgrade treatment, remove organic impurities, and use a compactor to compact the soft soil, so that the water on both sides of the soft soil flows into the drainage trough and is discharged, and the soft soil on both sides is dried by sunlight; Determine the pile positions of the lime piles on the soft soil, perform hole-forming construction at the pile positions, then fill the filler of the lime piles into the pile holes and tamp them. After waiting for the lime piles to expand and form, perform hole-forming construction of the reinforced concrete piles at the central positions of the lime piles, and then implant the reinforced concrete piles into the pile holes of the lime piles, and fill cement mortar in the gaps between the pile holes and the reinforced concrete piles; Arrange the reinforcement supports and the load-bearing ground beams at intervals along the length direction of the road, so that the reinforcement supports support the weight of the load-bearing ground beams, and install the side guard plates between the reinforcement supports on the same side; Building materials for paving roads. After the building materials are paved to a certain height, the connecting frame and the longitudinal rod are placed into the building materials and fixed to the composite reinforcement piles. Then, the building materials are continuously filled to a height parallel to the upper end of the reinforcement support, and the building materials are compacted.

[0017] Compared with the prior art, the present invention provides a reinforcement structure for a soft soil foundation road and its construction method, which has the following beneficial effects: 1. For the reinforcement structure of the soft soil foundation road, by setting the reinforcement support, the load-bearing ground beam and the side guard plate, and using the reinforcement support to support the load-bearing ground beam, when the load-bearing ground beam is subjected to pressure from above, the reinforcement support and the side guard plate apply pressure to the inner side of the road, avoiding the deformation and subsidence of the soft soil foundation, improving the compressive performance of the soft soil foundation. At the same time, by setting lime piles, the strength and stability of the foundation soil are improved. With the setting of reinforced concrete piles, connecting frames and longitudinal rods, all the composite reinforcement piles are relatively fixed, avoiding the gradual inclination of individual composite reinforcement piles due to the compression and movement of the soft soil foundation, and ensuring the strength of the soft soil foundation road.

[0018] 2. For the reinforcement structure of the soft soil foundation road, by opening pipe holes and water-permeable ventilation holes inside the load-bearing ground beam, it is convenient for the evaporation of moisture inside the soft soil foundation road. With the setting of ventilation drain pipes, it can not only disperse the pressure on the load-bearing ground beam when the vehicle passes, reduce the probability of the load-bearing ground beam breaking and deforming, but also facilitate the cleaning of the inside of the pipe, avoiding the decline of ventilation and drainage performance caused by the blockage of the pipe holes; by setting diversion channels on the longitudinal rods, the moisture in the soft soil foundation can flow to a position closer to the load-bearing ground beam faster, thereby improving the drainage effect.

[0019] 3. For the reinforcement structure of the soft soil foundation road, by setting planting plates, planting grooves and planting holes on the reinforcement support, it is convenient for planting trees, and the roots of the trees are used to strengthen the firm connection between the reinforcement support and the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 One of the three-dimensional structure schematic diagrams of the reinforcement structure of the soft soil foundation road of the present invention; Figure 2 Two of the three-dimensional structure schematic diagrams of the reinforcement structure of the soft soil foundation road of the present invention; Figure 3 One of the three-dimensional structure split schematic diagrams of the reinforcement structure of the soft soil foundation road of the present invention; Figure 4 For the present invention Figure 3 The partial enlarged structure schematic diagram at A in Figure 5 For the present invention Figure 3 The partial enlarged structure schematic diagram at B in Figure 6Schematic diagram II of the three-dimensional structure split of the reinforcement structure for a road on soft soil foundation according to the present invention; Figure 7 According to the present invention Figure 6 Local enlarged structural schematic diagram at position C in the present invention; Figure 8 According to the present invention Figure 6 Local enlarged structural schematic diagram at position D in the present invention; Figure 9 Three-dimensional structure sectional view of the reinforcement structure for a road on soft soil foundation according to the present invention; Figure 10 According to the present invention Figure 9 Local enlarged structural schematic diagram at position E in the present invention.

[0021] In the figure: 1. Reinforcement support; 11. Step groove; 12. Insertion hole; 13. Embedded groove; 2. Load-bearing ground beam; 21. Pipe-passing hole; 22. Water-permeable ventilation hole; 3. Side guard plate; 31. Reinforcement plate; 311. Connection part; 312. Support part; 313. Inclined surface part; 32. Planting plate; 33. Planting groove; 34. Planting hole; 35. Drainage opening; 4. Composite reinforcement pile; 41. Lime pile; 42. Reinforced concrete pile; 5. Ventilation and drainage pipe; 51. Ventilation hole; 52. Filter screen; 6. Connection frame; 61. Pile-passing hole; 62. Long convex strip; 63. Short convex strip; 7. Longitudinal rod; 71. Diversion channel; 72. Guide hole. Specific implementation manner

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0023] Please refer to Figure 1 , Figure 2 and Figure 3 , the present invention provides a reinforcement structure for a road on soft soil foundation, including a reinforcement support 1, a load-bearing ground beam 2, a side guard plate 3 and a composite reinforcement pile 4. The reinforcement supports 1 are respectively arranged on both sides of the road on soft soil foundation. The load-bearing ground beam 2 is buried inside the road on soft soil foundation. Both ends of the load-bearing ground beam 2 are fixedly connected to the opposite reinforcement supports 1. Both ends of the side guard plate 3 are fixedly connected to the reinforcement supports 1 on the same side. Both the reinforcement support 1 and the side guard plate 3 are closely attached to the side surface of the road on soft soil foundation; The composite reinforcement piles 4 are buried in the interior of the soft soil foundation road in a rectangular array. A connecting frame 6 and a longitudinal rod 7 are arranged between the composite reinforcement piles 4. The composite reinforcement piles 4 in the same row are connected and fixed by the connecting frame 6, and the adjacent connecting frames 6 are connected and fixed by the longitudinal rod 7; The composite reinforcement pile 4 includes a lime pile 41 and a reinforced concrete pile 42. The lime pile 41 is arranged in the soft soil foundation under the soft soil foundation road, and the reinforced concrete pile 42 is fixed at the upper end of the lime pile 41, and the upper end of the reinforced concrete pile 42 is buried in the building materials that make up the soft soil foundation road.

[0024] As can be seen from the above, for the reinforcement structure of the soft soil foundation road, by setting the reinforcement support 1, the load-bearing ground beam 2 and the side guard plate 3, and using the reinforcement support 1 to support the load-bearing ground beam 2, when the load-bearing ground beam 2 is subjected to pressure from above, the reinforcement support 1 and the side guard plate 3 apply pressure to the inner side of the road, avoiding the deformation and subsidence of the soft soil foundation, improving the compressive performance of the soft soil foundation. At the same time, by setting the lime pile 41, the strength and stability of the foundation soil are improved. With the setting of the reinforced concrete pile 42, the connecting frame 6 and the longitudinal rod 7, all the composite reinforcement piles 4 are relatively fixed, avoiding the gradual inclination of a single composite reinforcement pile 4 due to the compression and movement of the soft soil foundation, and ensuring the strength of the soft soil foundation road.

[0025] When using this device, level the site, install a protection project at the construction site, and excavate a drainage trough; carry out subgrade treatment, remove organic impurities, and use a compactor to compact the soft soil, so that the moisture on both sides of the soft soil flows into the drainage trough and is discharged, and the soft soil on both sides is dried by sunlight; determine the pile positions of the lime piles 41 on the soft soil, and carry out hole-forming construction at the pile positions, then fill the filler of the lime piles 41 into the pile holes and tamp them. After waiting for the lime piles 41 to expand and form, carry out hole-forming construction of the reinforced concrete piles 42 at the central positions of the lime piles 41, and then implant the reinforced concrete piles 42 into the pile holes of the lime piles 41, and fill the gap between the pile holes and the reinforced concrete piles 42 with cement mortar; Place the reinforcement support 1 and the load-bearing ground beam 2 at intervals along the length direction of the road, so that the reinforcement support 1 supports the weight of the load-bearing ground beam 2, and install the side guard plate 3 between the reinforcement supports 1 on the same side; lay the building materials of the road. After laying the building materials to a certain height, place the connecting frame 6 and the longitudinal rod 7 into the building materials and fix them with the composite reinforcement piles 4, and then continue to fill the building materials to a height parallel to the upper ends of the reinforcement supports 1 and compact the building materials. Embodiment

[0026] Such as Figure 3 、 Figure 6 And Figure 7As shown in the figure, the difference between this embodiment and the above-mentioned embodiment is that a stepped groove 11 is formed on one side wall of the reinforcement support 1 close to the soft soil foundation road, and the end of the side guard plate 3 is fitted and clamped with the stepped groove 11. A reinforcement plate 31 is fixedly installed on one side wall of the side guard plate 3 close to the soft soil foundation road, and the reinforcement plate 31 is inserted into the building materials that make up the soft soil foundation road. The reinforcement plate 31 includes a connecting portion 311, a supporting portion 312, and an inclined surface portion 313. The ends of the connecting portion 311, the supporting portion 312, and the inclined surface portion 313 are fixedly connected in sequence, and the connecting portion 311 is fixedly installed on the reinforcement support 1.

[0027] As can be seen from the above, by providing the stepped groove 11, the side guard plate 3 and the reinforcement support 1 are in full contact with the side of the soft soil foundation road, avoiding the existence of unprotected positions on the side of the soft soil foundation road, so as to ensure that the soil will not flow out from the side of the road. By providing the connecting portion 311, the supporting portion 312, and the inclined surface portion 313, the contact area between the side guard plate 3 and the side of the road can be increased, and the connection force between the road and the side guard plate 3 can be increased, avoiding the formation of cavities between the side guard plate 3 and the side of the road due to deformation of the side guard plate 3 under the influence of the environment.

[0028] A planting plate 32 is fixedly installed on one side wall of the side guard plate 3 away from the road base layer. The planting plate 32 is in close contact with the foundation outside the soft soil foundation road. A planting groove 33 is formed on the upper surface of the planting plate 32, a planting hole 34 is formed in the middle of the planting groove 33, and a drainage port 35 is formed on the planting groove 33.

[0029] As can be seen from the above, by providing the planting plate 32, the planting groove 33, and the planting hole 34, it is convenient to plant trees in the planting hole 34. The roots of the trees can absorb water and fix the soil, thereby strengthening the firm connection between the reinforcement support 1 and the ground. Since the soft soil foundation usually has poor water permeability and air permeability, and the soil is soft, saplings directly planted in the soft soil layer are prone to root rot or lodging. By filling the planting groove 33 with soil suitable for tree growth, it is convenient for the trees to take root and grow. With the setting of the drainage port 35, it is possible to avoid the adverse conditions caused by water accumulation in the planting groove 33 during the initial growth of the trees. At the same time, due to the poor water permeability and air permeability of the soft soil foundation, the water in the soil layer below the planting plate 32 will not quickly penetrate upward through the planting hole 34, so that the laid soil can maintain its original characteristics in the short term, thus ensuring the initial growth of the trees. When the roots of the trees grow to penetrate the planting hole 34 and extend downward, the roots of the trees are also supported by the reinforcement support 1. At this time, the trees and the reinforcement support 1 provide mutual support. Embodiment

[0030] Such as Figure 3 、 Figure 4 And Figure 8As shown in the figure, the difference between this embodiment and the above embodiment is that the lime pile 41 is made by filling the filler into the pre-bored ground and tamping it. A pile hole is provided at the upper end of the lime pile 41, and the reinforced concrete pile 42 is inserted and installed inside the pile hole. A pile-passing opening 61 is provided on the connecting frame 6, and the reinforced concrete pile 42 passes through the pile-passing opening 61, and the upper end of the reinforced concrete pile 42 extends above the connecting frame 6. The top height of the reinforced concrete pile 42 is flush with the top height of the load-bearing ground beam 2.

[0031] As can be seen from the above, the installation method of the lime pile 41 is to determine the pile position of the lime pile 41 on the soft soil and carry out hole-forming construction at the pile position, and then fill the filler of the lime pile 41 into the pile hole and tamp it. The installation method of the reinforced concrete pile 42 is to wait for the lime pile 41 to expand and form, and then carry out hole-forming construction of the reinforced concrete pile 42 at the center position of the lime pile 41, and then implant the reinforced concrete pile 42 into the pile hole of the lime pile 41. The installation position of the connecting frame 6 should be far away from the upper end of the lime pile 41, so as to fix one end of the reinforced concrete pile 42 away from the lime pile 41. Since the lime pile 41 can improve the strength of the foundation soil by the water absorption and expansion of quicklime to compact the soil around the pile and the physical and chemical action with the soil, it has excellent effects in the reinforcement of soft soil foundations. However, the pile body strength of the lime pile 41 is relatively low, while the strength of the reinforced concrete pile 42 is high and can bear a large vertical load, but its effect on improving the foundation strength is slightly poor. The combination of the two can give full play to the advantages of both and avoid the disadvantages, make up for the defect of insufficient pile body strength of the lime pile 41, improve the overall bearing capacity of the composite foundation, reduce the deformation and damage of the lime pile 41 during the stress process, and help improve the reinforcement effect and stability of the foundation.

[0032] The reinforced concrete pile 42 adopts a prestressed concrete pipe pile. The bottom of the prestressed concrete pipe pile penetrates below the lime pile 41 and contacts the foundation of the soft soil foundation road, and the inside of the prestressed concrete pipe pile is filled with a water-permeable filler.

[0033] As can be seen from the above, when there is water accumulation on the road surface, the water falling on the road surface can flow into the deep position of the soft soil foundation through the inner hole of the prestressed concrete pipe pile, reducing the probability of water accumulation on the road surface.

[0034] The lower surface of the connecting frame 6 is provided with long convex strips 62 and short convex strips 63. The bottom surface of the longitudinal rod 7 fits with the upper surface of the connecting frame 6, and the longitudinal rod 7 and the connecting frame 6 are fixed by bolts.

[0035] As can be seen from the above, by setting the long convex strips 62 and short convex strips 63, the bonding effect between the connecting frame 6 and the building materials for laying the road is improved, and the connecting frame 6 and the composite reinforcement pile 4 are prevented from moving. Since the longitudinal rod 7 and the connecting frame 6 are fixed by bolts, while the longitudinal rod 7 is fixed on the connecting frame 6, the fixing firmness of the connecting frame 6 is further improved. Embodiment

[0036] As Figure 5 、 Figure 9 and Figure 10 shown, the difference between this embodiment and the above - mentioned embodiment is that a pipe - passing hole 21 is opened inside the load - bearing ground beam 2, an insertion hole 12 is opened on the reinforcement support 1, the positions of the insertion hole 12 and the pipe - passing hole 21 are opposite, a ventilation and drainage pipe 5 is fixedly inserted between the opposite insertion holes 12, the ventilation and drainage pipe 5 is sleeved inside the pipe - passing hole 21, a seepage and ventilation hole 22 penetrating through the side wall of the load - bearing ground beam 2 to the inside of the pipe - passing hole 21 is opened on the side wall of the load - bearing ground beam 2, a ventilation hole 51 communicated with the seepage and ventilation hole 22 is opened on the ventilation and drainage pipe 5, and filter meshes 52 are installed at both ends of the ventilation and drainage pipe 5. There is a gap between the outer wall of the ventilation and drainage pipe 5 and the inner wall of the pipe - passing hole 21, and seepage filler is filled in the gap between the ventilation and drainage pipe 5 and the pipe - passing hole 21.

[0037] As can be seen from the above, by opening the pipe - passing hole 21 and the seepage and ventilation hole 22 inside the load - bearing ground beam 2, it is convenient for the moisture inside the soft - soil foundation road to evaporate. With the setting of the ventilation and drainage pipe 5, it can not only disperse the pressure on the load - bearing ground beam 2 when the vehicle passes, reduce the probability of the load - bearing ground beam 2 breaking and deforming, but also facilitate the cleaning of the inside of the pipe, avoiding the decline of ventilation and drainage performance caused by the blockage of the concrete - made pipe - passing hole 21. By setting the filter meshes 52, it can avoid the blockage caused by foreign matters entering the inside of the ventilation and drainage pipe 5.

[0038] An embedding groove 13 is opened on the reinforcement support 1, the embedding groove 13 is communicated with the pipe - passing hole 21, the ventilation and drainage pipe 5 is arranged inside the embedding groove 13, and there is a gap between the outer wall of the ventilation and drainage pipe 5 and the inner side wall of the embedding groove 13.

[0039] As can be seen from the above, by setting the embedding groove 13, the end of the ventilation and drainage pipe 5 is suspended, so that the water flowing down from the road will not flow into from the end of the ventilation and drainage pipe 5.

[0040] A diversion channel 71 is opened inside the vertical rod 7, a guide hole 72 is opened at the bottom of the diversion channel 71, the guide hole 72 penetrates through the inner wall of the diversion channel 71 and extends to the outside of the vertical rod 7, and both ends of the vertical rod 7 are close to the side wall of the load - bearing ground beam 2.

[0041] As can be seen from the above, by setting the diversion channel 71 on the vertical rod 7, the moisture in the soft - soil foundation can flow to the position close to the load - bearing ground beam 2 faster, thus improving the drainage effect. Embodiment

[0042] Please refer to Figure 1 - Figure 10 , the present invention also discloses a construction method for soft - soil foundation road reinforcement, and the specific steps are as follows: Level the site, install protective works at the construction site, and excavate drainage channels; Conduct subgrade treatment, remove organic impurities, and use a compactor to compact the soft soil, allowing the moisture on both sides of the soft soil to flow into the drainage channels and drain out, and drying the two sides of the soft soil through sunlight exposure; Determine the pile positions of the lime piles 41 on the soft soil, conduct hole-forming construction at the pile positions, then fill the filler of the lime piles 41 into the pile holes and tamp them. After waiting for the lime piles 41 to expand and form, conduct hole-forming construction of the reinforced concrete piles 42 at the central positions of the lime piles 41. Then implant the reinforced concrete piles 42 into the pile holes of the lime piles 41, and fill the gaps between the pile holes and the reinforced concrete piles 42 with cement mortar; Place the reinforcement supports 1 and the load-bearing ground beams 2 at intervals along the length direction of the road, such that the reinforcement supports 1 support the weight of the load-bearing ground beams 2, and install the side guard plates 3 between the reinforcement supports 1 on the same side; Lay the building materials for the road. After laying the building materials to a certain height, place the connecting frames 6 and the longitudinal bars 7 into the building materials and fix them to the composite reinforcement piles 4. Then continue to fill the building materials to a height parallel to the upper ends of the reinforcement supports 1 and compact the building materials.

[0043] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reinforcement structure for a soft soil foundation road, comprising a reinforcement support (1), a load-bearing ground beam (2), a side guard plate (3) and a composite reinforcement pile (4), characterized in that: The reinforcement supports (1) are respectively arranged on both sides of the road with a soft soil foundation, the load-bearing ground beam (2) is buried inside the road with a soft soil foundation, the two ends of the load-bearing ground beam (2) are fixedly connected to the opposite reinforcement supports (1), the two ends of the side guard plate (3) are fixedly connected to the reinforcement supports (1) on the same side, and the reinforcement supports (1) and the side guard plates (3) are both tightly fitted to the side of the road with a soft soil foundation; The composite reinforcement piles (4) are buried in a rectangular array inside a soft soil foundation road, and connecting frames (6) and longitudinal rods (7) are provided between the composite reinforcement piles (4). The composite reinforcement piles (4) in the same row are connected and fixed by the connecting frames (6), and adjacent connecting frames (6) are connected and fixed by the longitudinal rods (7); The composite reinforcement pile (4) comprises a lime pile (41) and a reinforced concrete pile (42), wherein the lime pile (41) is arranged in a soft soil foundation below the soft soil foundation road, the reinforced concrete pile (42) is fixed to the upper end of the lime pile (41), and the upper end of the reinforced concrete pile (42) is buried in the building materials constituting the soft soil foundation road; A step groove (11) is formed on one side wall of the reinforcing support (1) close to the soft soil foundation road, an end of the side guard plate (3) is engaged with the step groove (11), a reinforcing plate (31) is fixedly mounted on one side wall of the side guard plate (3) close to the soft soil foundation road, the reinforcing plate (31) is inserted into the building materials constituting the soft soil foundation road, the reinforcing plate (31) comprises a connecting portion (311), a supporting portion (312) and an inclined portion (313), the ends of the connecting portion (311), the supporting portion (312) and the inclined portion (313) are fixedly connected in sequence, and the connecting portion (311) is fixedly mounted on the reinforcing support (1); A planting plate (32) is fixedly mounted on a side wall of the side guard plate (3) away from the roadbed, the planting plate (32) is in close contact with the foundation outside the soft soil foundation road, a planting groove (33) is provided on the upper surface of the planting plate (32), a planting hole (34) is provided in the middle of the planting groove (33), and a drainage port (35) is provided on the planting groove (33).

2. The reinforcement structure for a soft soil foundation road according to claim 1, characterized in that: The lime pile (41) is made by filling a filler into a pre-formed hole in the ground and compacting it. A pile hole is formed at the upper end of the lime pile (41). The reinforced concrete pile (42) is inserted and installed inside the pile hole. A pile hole (61) is formed on the connecting frame (6). The reinforced concrete pile (42) is inserted into the pile hole (61). The upper end of the reinforced concrete pile (42) extends above the connecting frame (6). The top height of the reinforced concrete pile (42) is flush with the top height of the load-bearing ground beam (2).

3. The reinforcement structure for a soft soil foundation road according to claim 1, characterized in that: The reinforced concrete pile (42) is a prestressed concrete pipe pile, the bottom of which penetrates below the lime pile (41) and contacts the foundation of the soft soil road, and the interior of the prestressed concrete pipe pile is filled with water-permeable filler.

4. The reinforcement structure for a soft soil foundation road according to claim 1, characterized in that: The lower surface of the connecting frame (6) is provided with a long convex strip (62) and a short convex strip (63), the bottom surface of the longitudinal rod (7) is in contact with the upper surface of the connecting frame (6), and the longitudinal rod (7) and the connecting frame (6) are fixed by bolts.

5. The reinforcement structure for a soft soil foundation road according to claim 4, characterized in that: The load-bearing ground beam (2) is provided with a pipe penetration hole (21), the reinforcing support (1) is provided with an insertion hole (12), the insertion hole (12) and the pipe penetration hole (21) are located opposite to each other, a ventilation and drainage pipe (5) is inserted and fixed between the opposite insertion holes (12), the ventilation and drainage pipe (5) is sleeved inside the pipe penetration hole (21), the side wall of the load-bearing ground beam (2) is provided with a water seepage ventilation hole (22) penetrating into the inside of the pipe penetration hole (21), the ventilation and drainage pipe (5) is provided with an air vent (51) connected to the water seepage ventilation hole (22), and filtering nets (52) are installed at both ends of the ventilation and drainage pipe (5), there is a gap between the outer wall of the ventilation and drainage pipe (5) and the inner wall of the pipe penetration hole (21), and the gap between the ventilation and drainage pipe (5) and the pipe penetration hole (21) is filled with a water seepage filler.

6. The reinforcement structure for a soft soil foundation road according to claim 5, characterized in that: The reinforcing support (1) is provided with an embedding groove (13), the embedding groove (13) is in communication with the pipe-through hole (21), the ventilation and drainage pipe (5) is arranged inside the embedding groove (13), and a gap exists between the outer wall of the ventilation and drainage pipe (5) and the inner wall of the embedding groove (13).

7. The reinforcement structure for a soft soil foundation road according to claim 5, characterized in that: A guide channel (71) is provided inside the longitudinal rod (7), a guide hole (72) is provided at the bottom of the guide channel (71), the guide hole (72) penetrates the inner wall of the guide channel (71) and extends to the outside of the longitudinal rod (7), and both ends of the longitudinal rod (7) are close to the side wall of the load-bearing ground beam (2).

8. A construction method for reinforcing a soft soil foundation road, using a reinforcement structure for a soft soil foundation road as claimed in any one of claims 1 to 7, characterized in that: The specific steps are: Level the site, install protective works at the construction site, and dig drainage ditches; Carry out base treatment to remove organic impurities and use a compactor to compact the soft soil so that the water on both sides of the soft soil flows into the drainage ditch for discharge, and the soft soil is dried by sunlight; The pile position of the lime pile (41) is determined on the soft soil, and a hole is formed at the pile position. Then, the filler of the lime pile (41) is filled into the pile hole and compacted. After the lime pile (41) is expanded and formed, a hole is formed for the reinforced concrete pile (42) at the center of the lime pile (41). Then, the reinforced concrete pile (42) is implanted in the pile hole of the lime pile (41), and cement mortar is filled in the gap between the pile hole and the reinforced concrete pile (42); The reinforcement supports (1) and the load-bearing beams (2) are arranged at intervals along the length direction of the road, so that the reinforcement supports (1) support the weight of the load-bearing beams (2), and the side guard plates (3) are installed between the reinforcement supports (1) on the same side; The building materials for paving the road are laid. After the building materials are laid to a certain height, the connecting frame (6) and the longitudinal rod (7) are placed in the building materials and fixed with the composite reinforcement piles (4). Then, the building materials are continued to be filled to a height parallel to the upper end of the reinforcement support (1), and the building materials are compacted.

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