A reinforcement structure for a road on soft soil foundation and its construction method

Abstract

The present invention relates to the technical field of foundation reinforcement, and discloses a reinforcement structure for a soft soil foundation road and a construction method thereof, including reinforcement supports, load-bearing ground beams, side guard plates and composite reinforcement piles. The reinforcement supports are respectively arranged on both sides of the soft soil foundation road, and the load-bearing ground beams are buried inside the soft soil foundation road; for the reinforcement structure of the soft soil foundation road, by arranging the reinforcement supports, load-bearing ground beams and side guard plates, and using the reinforcement supports to support the load-bearing ground beams, when the load-bearing ground beams are subjected to pressure from above, the reinforcement supports and side guard plates 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 arranging lime piles, the strength and stability of the foundation soil are improved. With the arrangement of reinforced concrete piles, connecting frames and longitudinal bars, all the composite reinforcement piles are relatively fixed, avoiding the gradual inclination of individual composite reinforcement piles caused by the compression and movement of the soft soil foundation.

Description

Technical Field

[0001] The invention relates to the technical field of foundation reinforcement, in particular to a reinforcement structure of a soft soil foundation road and a construction method thereof. Background Art

[0002] Soft soil foundation is a poor foundation composed of silt, silty soil, backfill, miscellaneous fill or other highly compressible soil layers. It has the remarkable characteristics of high water content, large porosity, high compressibility and limited bearing capacity. When soft soil foundation road construction and other projects are carried out on soft soil foundation, settlement, deformation and even collapse are prone to occur, which seriously affects the stability and durability of the project. Therefore, it is extremely critical to reinforce the soft soil foundation.

[0003] Soft soil roadbed has relatively large compressibility and rheology, and is prone to uneven settlement under load. Usually, the construction process is to remove the loose soil of the base layer, pre-compact the base layer by pre-compacting method, and then lay fine sand and gravel, waste slag, etc. as a cushion layer. After compaction, the normal concrete laying procedure of 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 water permeability of the soft soil roadbed is poor. When the water on the surface layer of the soft soil foundation road seeps, it is impossible to ensure that the accumulated water is discharged in time, which affects the stability of the roadbed and causes partial collapse of the roadbed.

[0004] Chinese patent application CN119411436A discloses a reinforcement structure for a soft soil foundation road and a construction method thereof, wherein core piles, geogrid layers and cushion layers are provided to reinforce the soft soil layer and control the uneven settlement of the roadbed; however, the structure lacks the reinforcement effect on the slope of the soft soil foundation road, and when subjected to 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, where the edge of the soft soil foundation road is more likely to be compressed, and roadbed deformation is likely to occur at the edge of the soft soil foundation road, and gradually spread to the middle of the soft soil foundation road, and movement occurs in the soft soil foundation.

[0005] Chinese patent CN114318987B discloses a reinforcement structure for a high-speed soft soil foundation road. By setting a connecting pipe, a side guard plate and a locking mechanism, when the connecting pipe generates a downward moving force as the roadbed is compressed, the side guard plates on both sides are pulled to squeeze the slope of the roadbed, thereby generating a force to resist the sinking of the soft soil foundation road and improving the compression resistance of the soft soil foundation road; however, in this structure, the two sides are connected by the connecting pipe, and the local position of the connecting pipe that crosses the roadbed is prone to breakage or deformation when subjected to 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:

[0008] A reinforcement structure for a soft soil foundation road, comprising 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. The reinforcement supports and the side guards are both in close contact with the side surface of the soft soil foundation road.

[0009] The composite reinforcement piles are buried in the soft soil foundation road in a rectangular array. A connecting frame and longitudinal bars are arranged between the composite reinforcement piles. The composite reinforcement piles in the same row are connected and fixed by the connecting frame. Adjacent connecting frames are connected and fixed by longitudinal bars.

[0010] The composite reinforcement pile comprises 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 forming the soft soil foundation road.

[0011] Preferably, a stepped groove is formed 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 forming the soft soil foundation road. The reinforcement plate comprises 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.

[0012] 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. Planting grooves are formed on the upper surface of the planting plate. Planting holes are formed in the middle of the planting grooves. Drainage openings are formed on the planting grooves.

[0013] Preferably, the lime pile is made by filling the filler into the pre - formed holes in the ground and tamping. There is a pile hole at the upper end of the lime pile. The reinforced concrete pile is inserted and installed inside the pile hole. There is a pile - passing opening 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 bearing ground beam.

[0014] Preferably, the reinforced concrete pile adopts 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. And the inside of the prestressed concrete pipe pile is filled with water - permeable filler.

[0015] Preferably, long convex strips and short convex strips are arranged on the lower surface of the connecting frame. The bottom surface of the vertical rod fits with the upper surface of the connecting frame, and the vertical rod and the connecting frame are fixed by bolts.

[0016] Preferably, there is a pipe - passing hole inside the bearing ground beam. There is an insertion hole on the reinforcement support. The positions of the insertion hole and the pipe - passing hole are opposite. A ventilation and drainage pipe is inserted and fixed between the opposite insertion holes. The ventilation and drainage pipe is sleeved inside the pipe - passing hole. There is a water - seepage and ventilation hole on the side wall of the bearing ground beam that penetrates into the inside of the pipe - passing hole. There is a ventilation hole on the ventilation and drainage pipe that communicates with the water - seepage and ventilation hole. And filter nets are installed at both ends of the ventilation and drainage pipe. There is a gap between the outer wall of the ventilation and drainage pipe and the inner wall of the pipe - passing hole. The gap between the ventilation and drainage pipe and the pipe - passing hole is filled with water - permeable filler.

[0017] Preferably, there is an embedding groove on the reinforcement support. The embedding groove communicates with the pipe - passing hole. The ventilation and drainage pipe is arranged inside the embedding groove, and there is a gap between the outer wall of the ventilation and drainage pipe and the inner side wall of the embedding groove.

[0018] Preferably, there is a diversion channel inside the vertical rod. There is a guide hole at the bottom of the diversion channel. The guide hole penetrates the inner wall of the diversion channel and extends to the outside of the vertical rod. Both ends of the vertical rod are close to the side wall of the bearing ground beam.

[0019] The present invention also discloses a construction method for soft - soil foundation road reinforcement. The specific steps are as follows:

[0020] Level the site, install a protection project at the construction site, and excavate a drainage trough;

[0021] Conduct base 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 two sides of the soft soil are dried by sunlight;

[0022] Determine the positions of the lime piles on the soft soil, and carry out hole-forming construction at the pile positions. Then, fill the pile holes with the fillers of the lime piles and compact them. After waiting for the lime piles to expand and form, carry out hole-forming construction of the reinforced concrete piles at the central positions of the lime piles. Then, implant the reinforced concrete piles into the pile holes of the lime piles, and fill the gaps between the pile holes and the reinforced concrete piles with cement mortar;

[0023] Place 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;

[0024] Lay the building materials for the road. After laying the building materials to a certain height, place the connecting frames and the longitudinal bars into the building materials and fix them to the composite reinforcement piles. Then, continue to fill the building materials to a height parallel to the upper ends of the reinforcement supports, and compact the building materials.

[0025] Compared with the prior art, the present invention provides a reinforcement structure for a soft soil foundation road and its construction method, which have the following beneficial effects:

[0026] 1. For the reinforcement structure of the soft soil foundation road, by setting the reinforcement supports, the load-bearing ground beams and the side guard plates, and using the reinforcement supports to support the load-bearing ground beams, when the load-bearing ground beams are subjected to pressure from above, the reinforcement supports and the side guard plates 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 piles, the strength and stability of the foundation soil are improved. With the setting of the reinforced concrete piles, the connecting frames and the longitudinal bars, 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.

[0027] 2. For the reinforcement structure of the soft soil foundation road, by opening pipe-passing holes and water-permeable ventilation holes inside the load-bearing ground beams, it is convenient for the evaporation of the moisture inside the soft soil foundation road. With the setting of the ventilation drain pipes, it can not only disperse the pressure on the load-bearing ground beams when vehicles pass by, reduce the probability of the load-bearing ground beams breaking and deforming, but also facilitate the cleaning of the inside of the pipes, avoiding the decline of the ventilation and drainage performance caused by the blockage of the pipe-passing holes; by setting diversion channels on the longitudinal bars, the moisture in the soft soil foundation can flow to the position close to the load-bearing ground beams faster, thereby improving the drainage effect.

[0028] 3. For the reinforcement structure of the soft soil foundation road, by setting planting plates, planting grooves and planting holes on the reinforcement supports, it is convenient for planting trees, and the roots of the trees are used to strengthen the firm connection between the reinforcement supports and the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is one of the three-dimensional structure schematic diagrams of the reinforcement structure of the soft soil foundation road of the present invention;

[0030] Figure 2 The second three-dimensional structure schematic diagram of the reinforcement structure of the soft soil foundation road of the present invention;

[0031] Figure 3 The first three-dimensional structure split schematic diagram of the reinforcement structure of the soft soil foundation road of the present invention;

[0032] Figure 4 For the present invention Figure 3 The partial enlarged structure schematic diagram at A in the present invention;

[0033] Figure 5 For the present invention Figure 3 The partial enlarged structure schematic diagram at B in the present invention;

[0034] Figure 6 The second three-dimensional structure split schematic diagram of the reinforcement structure of the soft soil foundation road of the present invention;

[0035] Figure 7 For the present invention Figure 6 The partial enlarged structure schematic diagram at C in the present invention;

[0036] Figure 8 For the present invention Figure 6 The partial enlarged structure schematic diagram at D in the present invention;

[0037] Figure 9 The three-dimensional structure cross-sectional view of the reinforcement structure of the soft soil foundation road of the present invention;

[0038] Figure 10 For the present invention Figure 9 The partial enlarged structure schematic diagram at E in the present invention.

[0039] In the figure:

[0040] 1. Reinforcement support; 11. Step groove; 12. Insertion hole; 13. Embedded groove;

[0041] 2. Load-bearing ground beam; 21. Pipe-passing hole; 22. Water-permeable ventilation hole;

[0042] 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 port;

[0043] 4. Composite reinforcement pile; 41. Lime pile; 42. Reinforced concrete pile;

[0044] 5. Ventilation and drainage pipe; 51. Ventilation hole; 52. Filter screen;

[0045] 6. Connecting frame; 61. Pile-passing hole; 62. Long convex strip; 63. Short convex strip;

[0046] 7. Vertical rod; 71. Flow guiding channel; 72. Guide hole. Detailed implementation manner

[0047] 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

[0048] Please refer to Figure 1 , Figure 2 and Figure 3 , the present invention provides a reinforcement structure for a soft soil foundation road, including a reinforcement support 1, a load-bearing ground beam 2, side guard plates 3 and composite reinforcement piles 4. The reinforcement supports 1 are respectively arranged on both sides of the soft soil foundation road. The load-bearing ground beam 2 is buried inside the soft soil foundation road. Both ends of the load-bearing ground beam 2 are fixedly connected to the opposite reinforcement supports 1. Both ends of the side guard plates 3 are fixedly connected to the reinforcement supports 1 on the same side. Both the reinforcement supports 1 and the side guard plates 3 are closely attached to the side of the soft soil foundation road;

[0049] The composite reinforcement piles 4 are arranged in a rectangular array and buried inside the soft soil foundation road. A connecting frame 6 and a vertical 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 vertical rod 7;

[0050] 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. 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 constituting the soft soil foundation road.

[0051] 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 plates 3, the reinforcement support 1 is used 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 plates 3 apply pressure to the inner side of the road, avoiding the deformation and subsidence of the soft soil foundation and 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 vertical 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.

[0052] When using this device, level the site, install protective works at the construction site, and excavate drainage grooves; 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 grooves 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, carry out hole-forming construction at the pile positions, then fill the fillers of the lime piles 41 into the pile holes and tamp them. After the lime piles 41 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 gaps between the pile holes and the reinforced concrete piles 42 with cement mortar;

[0053] The reinforcement supports 1 and the load-bearing ground 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 ground beams 2, and the side guard plates 3 are installed between the reinforcement supports 1 on the same side; lay the building materials for the road. After the building materials are laid 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, 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

[0054] As Figure 3 、 Figure 6 and Figure 7 shown, the difference between this embodiment and the above embodiments is that a stepped groove 11 is formed in one side wall of the reinforcement support 1 close to the soft soil foundation road, the end of the side guard plate 3 is cooperatively 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 forming the soft soil foundation road. The reinforcement plate 31 includes a connecting portion 311, a supporting portion 312 and an inclined surface portion 313, and 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.

[0055] 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 complete 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 the deformation of the side guard plate 3 affected by the environment.

[0056] 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 closely attached to 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 opening 35 is formed in the planting groove 33.

[0057] As can be seen from the above, by setting the planting plate 32, the planting groove 33 and the planting holes 34, it is convenient to plant trees in the planting holes 34. The root systems of the trees can absorb water and fix the soil, thereby strengthening the firmness of the 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, the saplings are likely to have rotten roots or lodging when directly planted in the soft soil layer. By filling the planting groove 33 with soil suitable for the growth of trees, it is convenient for the trees to take root and grow. With the setting of the drainage opening 35, it is possible to avoid the adverse conditions caused by water accumulation in the planting groove 33 in the initial stage of tree growth. 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 holes 34, so that the laid soil can maintain its original characteristics in the short term, thereby ensuring the initial growth of the trees. When the root systems of the trees grow to penetrate the planting holes 34 and extend downward, the root systems of the trees are also supported by the reinforcement support 1. At this time, the trees and the reinforcement support 1 provide support for each other. Embodiment

[0058] As Figure 3 、 Figure 4 and Figure 8 shown, the difference between this embodiment and the above-mentioned 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 opened at the upper end of the lime pile 41. The reinforced concrete pile 42 is inserted and installed inside the pile hole. A pile-passing opening 61 is opened on the connecting frame 6. 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.

[0059] 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, 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, carry out hole-forming construction of the reinforced concrete pile 42 at the central 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 far 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 while avoiding the disadvantages, make up for the defect of the 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.

[0060] 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.

[0061] 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.

[0062] 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 fits with the upper surface of the connecting frame 6, and the longitudinal rod 7 and the connecting frame 6 are fixed by bolts.

[0063] As can be seen from the above, by setting the long convex strip 62 and the short convex strip 63, the bonding effect between the connecting frame 6 and the building materials for paving the road is improved, avoiding the movement of the connecting frame 6 and the composite reinforcement pile 4. 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

[0064] Such as Figure 5 、 Figure 9 And Figure 10As shown in the figure, the difference between this embodiment and the above embodiment is that a pipe - passing hole 21 is provided inside the load - bearing ground beam 2, and a socket hole 12 is provided on the reinforcement support 1. The positions of the socket hole 12 and the pipe - passing hole 21 are opposite. A ventilation and drainage pipe 5 is fixedly inserted between the opposite socket holes 12. The ventilation and drainage pipe 5 is sleeved inside the pipe - passing hole 21. A water - seepage 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 provided on the side wall of the load - bearing ground beam 2. An air - vent hole 51 communicating with the water - seepage ventilation hole 22 is provided 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 the gap between the ventilation and drainage pipe 5 and the pipe - passing hole 21 is filled with water - seepage filler.

[0065] As can be seen from the above, by providing the pipe - passing hole 21 and the water - seepage 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 prevent sundries from entering the inside of the ventilation and drainage pipe 5 and causing blockage.

[0066] An embedding groove 13 is provided on the reinforcement support 1. The embedding groove 13 communicates 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.

[0067] As can be seen from the above, by providing 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.

[0068] A diversion channel 71 is provided inside the vertical rod 7. A guide hole 72 is provided 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. Both ends of the vertical rod 7 are close to the side wall of the load - bearing ground beam 2.

[0069] As can be seen from the above, by providing the diversion channel 71 on the vertical rod 7, the moisture in the soft - soil foundation can flow to a position closer to the load - bearing ground beam 2 faster, thus improving the drainage effect. Embodiment

[0070] Please refer to Figure 1 - Figure 10 , the present invention also discloses a construction method for soft - soil foundation road reinforcement. The specific steps are as follows:

[0071] Level the site, install a protection project at the construction site, and excavate a drainage trough;

[0072] Perform base 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 trough and drain out, and drying the two sides of the soft soil through sunlight irradiation;

[0073] Determine the pile positions of the lime piles 41 on the soft soil, carry out hole-forming construction at the pile positions, then fill the fillers 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. 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;

[0074] Arrange the reinforcement supports 1 and the load-bearing ground beams 2 at intervals along the length direction of the road, so 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;

[0075] 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.

[0076] 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), side guard plates (3) and composite reinforcement piles (4), characterized in that: The reinforcing supports (1) are respectively arranged on both sides of the soft soil foundation road. The load-bearing ground beam (2) is buried inside the soft soil foundation road. The two ends of the load-bearing ground beam (2) are fixedly connected to the opposite reinforcing supports (1). The two ends of the side guard plate (3) are fixedly connected to the reinforcing supports (1) on the same side. Both the reinforcing supports (1) and the side guard plate (3) are closely attached to the side surface of the soft soil foundation road. The composite reinforcing piles (4) are buried in the soft soil foundation road in a rectangular array. A connecting frame (6) and a longitudinal rod (7) are arranged between the composite reinforcing piles (4). The composite reinforcing piles (4) in the same row are connected and fixed by the connecting frame (6). Adjacent connecting frames (6) are connected and fixed by the longitudinal rod (7). The composite reinforcing pile (4) includes a lime pile (41) and a reinforced concrete pile (42). The lime pile (41) is arranged in the soft soil under the soft soil foundation road. 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 forming the soft soil foundation road. A stepped groove (11) is formed on one side wall of the reinforcing support (1) close to the soft soil foundation road. The end of the side guard plate (3) is fitted and clamped with the stepped groove (11). A reinforcing plate (31) is fixedly installed 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 forming the soft soil foundation road. The reinforcing 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. The connecting portion (311) is fixedly installed on the reinforcing support (1). 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 closely attached to 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). A drainage port (35) is formed on the planting groove (33).

2. The reinforcement structure of a soft soil foundation road according to claim 1, characterized in that: The lime pile (41) is made by filling fillers into pre-bored ground and tamping. 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-passing opening (61) is formed on the connecting frame (6). 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).

3. The reinforcement structure of a soft soil foundation road according to claim 1, characterized in that: 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) to contact the foundation of the soft soil foundation road, and the inside of the prestressed concrete pipe pile is filled with water-permeable fillers.

4. A 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 vertical rod (7) is attached to the upper surface of the connecting frame (6), and the vertical rod (7) and the connecting frame (6) are fixed by bolts.

5. The reinforcement structure of a soft soil foundation road according to claim 4, characterized in that: A pipe passing hole (21) is formed inside the load-bearing ground beam (2). A jack (12) is formed on the reinforcement support (1). The positions of the jack (12) and the pipe passing hole (21) are opposite. A ventilation and drainage pipe (5) is inserted and fixed between the opposite jacks (12). The ventilation and drainage pipe (5) is sleeved inside the pipe passing hole (21). A seepage 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 formed on the side wall of the load-bearing ground beam (2). A ventilation hole (51) communicated with the seepage ventilation hole (22) is formed 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). The gap between the ventilation and drainage pipe (5) and the pipe passing hole (21) is filled with seepage filler.

6. The reinforcement structure of a soft soil foundation road according to claim 5, characterized in that: An embedding groove (13) is formed 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).

7. The reinforcement structure of a soft soil foundation road according to claim 5, characterized in that: A diversion channel (71) is formed inside the vertical rod (7). A guide hole (72) is formed 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). Both ends of the vertical rod (7) are close to the side wall of the load-bearing ground beam (2).

8. A construction method for road reinforcement of soft soil foundation, which uses a reinforcement structure for soft soil foundation road described in any one of claims 1-7, characterized in that, The specific steps are as follows: Level the site, install a protection project at the construction site, and excavate a drainage trough; Perform base 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, perform 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, perform 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; Arrange the reinforcement supports (1) and the load-bearing ground beams (2) at intervals along the length direction of the road, so 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 frame (6) and the vertical rod (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.

Images