Friction eliminating structure for pile foundation side soft soil foundation road

Abstract

The utility model discloses a pile foundation side soft soil foundation road friction eliminating structure, which belongs to the technical field of civil construction and comprises a soft soil layer, and a water-stable gravel layer, a mortar isolating layer, a concrete layer, a geotechnical cloth layer and a surface layer are sequentially laid on the soft soil layer. A blocking layer is arranged between the water-stable gravel layer, the mortar isolation layer, the concrete layer, the geotechnical cloth layer and the surface layer and the adjacent pile foundations, a composite geomembrane is laid on the outer surface of the blocking layer, and a plurality of steel pipe piles with the top ends located on the inner side of the concrete layer are installed on the inner side of the soft soil layer. Through the arrangement of the water-stable gravel layer, the mortar isolation layer, the concrete layer, the geotechnical cloth layer, the surface layer and the steel pipe piles, the stability and the tensile and shear resistance of the road can be enhanced, rainwater infiltration can be reduced, and then road settlement is reduced; and the surface is smooth, so that the friction resistance can be reduced when the road is settled.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pile foundation side soft soil foundation road elimination friction structure belongs to civil engineering construction technical field. BACKGROUND

[0002] The house or station on the soft soil foundation usually adopts the pile foundation, and the settlement is generally small, but the soft soil treatment measure is relatively simple for saving cost near the road, and there is a large settlement difference between the house or station and the road, but the house or station and the road are difficult to be uniformly settled due to the existence of the friction between the road surface, the base and the soft soil treatment part and the pile foundation under the house or station, and a concave inclined curve is formed, which affects the use and the environmental aesthetics, and even damages the road surface structure.

[0003] But the isolation layer lacks support, is easy with the settlement of road and settlement and drop, further influence its function.

[0004] Therefore, the utility model provides a new solution. UTILITY MODEL CONTENT

[0005] The utility model discloses a pile foundation side soft soil foundation road elimination friction structure.

[0006] The utility model discloses a pile foundation side soft soil foundation road elimination friction structure.

[0007] A pile foundation side soft soil foundation road elimination friction structure, including the multiple piles that constitute multiple rows in the soft soil foundation under the house or station and set up, the side of multiple piles is the soft soil layer, water stable crushed stone layer, mortar isolation layer, concrete layer, geotextile layer and surface layer are laid in proper order on the soft soil layer, and water stable crushed stone layer, mortar isolation layer, concrete layer, geotextile layer and surface layer are equipped with the barrier layer between the multiple piles close to it, the barrier layer is fixedly connected with the pile foundation, the outer surface of the barrier layer is paved with composite geomembrane, the inboard of the soft soil layer is installed with multiple steel pipe piles and the inboard of the concrete layer is located.

[0008] Preferably, the composite geomembrane is a polyethylene geomembrane.

[0009] Preferably, two adjacent steel pipe piles are connected by two baffle plates arranged in upper and lower positions.

[0010] Preferably, the two baffle plates are located on the inner side of the soft soil layer, and a geotechnical net is connected between the two baffle plates.

[0011] Preferably, the geotechnical net is a polyester geotechnical net.

[0012] Preferably, a reinforcement cage is arranged on the inner side of the concrete layer.

[0013] Preferably, the reinforcement cage is fixedly connected to the top of the steel pipe pile.

[0014] Preferably, an upper baffle rod is fixedly connected to the top end of the steel pipe pile.

[0015] Preferably, the steel pipe pile and the baffle plate are connected by bolts.

[0016] Preferably, mounting holes are formed in the steel pipe pile and the baffle plate to cooperate with the bolts.

[0017] The pile foundation side soft soil foundation road friction elimination structure according to the utility model can enhance the stability and tensile and shearing resistance of the road, reduce rainwater infiltration, and thus reduce road settlement, and can reduce the damage to the road caused by settlement by setting the barrier layer and the composite geomembrane, and can prevent rainwater from penetrating, and has a long service life. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of a preferred embodiment according to the utility model;

[0019] Figure 2 It is a steel pipe pile connection schematic view of a preferred embodiment according to the utility model;

[0020] Figure 3 It is a steel pipe pile structure schematic view of a preferred embodiment according to the utility model;

[0021] Figure 4 It is a baffle plate structure schematic view of a preferred embodiment according to the utility model.

[0022] In the diagram: 1. Pile foundation; 2. Soft soil layer; 3. Water-stabilized crushed stone layer; 4. Mortar isolation layer; 5. Concrete layer; 6. Geotextile layer; 7. Surface layer; 8. Barrier layer; 9. Composite geomembrane; 10. Steel pipe pile; 11. Baffle; 12. Geonet; 13. Reinforcing cage; 14. Upper retaining bar; 15. Bolt; 16. Mounting hole. Detailed Implementation

[0023] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0024] like Figures 1-4 As shown, the friction-eliminating structure for soft soil foundation roads provided in this embodiment includes multiple piles 1 arranged in multiple rows in the soft soil foundation under buildings or stations. One side of the multiple piles 1 is a soft soil layer 2. A water-stabilized crushed stone layer 3, a mortar isolation layer 4, a concrete layer 5, a geotextile layer 6, and a surface layer 7 are laid sequentially on the soft soil layer 2. A barrier layer 8 is provided between the water-stabilized crushed stone layer 3, the mortar isolation layer 4, the concrete layer 5, the geotextile layer 6, and the surface layer 7 and the adjacent multiple piles 1. The barrier layer 8 is fixedly connected to the piles 1. A composite geomembrane 9 is laid on the outer surface of the barrier layer 8. Multiple steel pipe piles 10 with their tops located inside the concrete layer 5 are installed on the inner side of the soft soil layer 2. The composite geomembrane 9 is a polyethylene geomembrane. By setting up a water-stabilized crushed stone layer 3, a mortar isolation layer 4, a concrete layer 5, a geotextile layer 6, a surface layer 7, and steel pipe piles 10, the stability and tensile and shear strength of the road can be enhanced, and rainwater infiltration can be reduced, thereby reducing road settlement. By setting up a barrier layer 8 and a composite geomembrane 9, the composite geomembrane 9 being a polyethylene geomembrane with a smooth surface, friction can be reduced when the road settles, allowing the road to settle as a whole without affecting its aesthetics and reducing damage to the road during settlement. In addition, the polyethylene geomembrane has impermeable and corrosion-resistant properties, preventing rainwater infiltration and having a long service life.

[0025] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, two vertically distributed baffles 11 are connected between two adjacent steel pipe piles 10. Both baffles 11 are located inside the soft soil layer 2, and a geonet 12 (polyester geonet) is connected between the two baffles 11. The steel pipe piles 10 and the baffles 11 are connected to each other by bolts 15. Mounting holes 16 for the bolts 15 are provided on both the steel pipe piles 10 and the baffles 11. By connecting two vertically distributed baffles 11 between two adjacent steel pipe piles 10 and connecting the geonet 12 between the two baffles 11, the soil erosion of the soft soil layer 2 can be reduced, thereby further reducing road settlement. The geonet 12 (polyester geonet) is corrosion-resistant and has a long service life.

[0026] In the embodiment, as shown in Figure 1 , Figure 2 and Figure 3 , the inner side of the concrete layer 5 is paved with a reinforcement cage 13, the reinforcement cage 13 is fixedly connected to the top of the steel pipe pile 10, and the top end of the steel pipe pile 10 is fixedly connected with an upper bar 14. Through the setting of the upper bar 14, the reinforcement cage 13 is fixedly connected with the steel pipe pile 10 by using iron wire, so as to improve the stability.

[0027] In the embodiment, as shown in Figures 1-4 , the working principle of the pile foundation side soft soil road friction-eliminating structure is as follows:

[0028] Through the setting of the water-stable broken stone layer 3, the mortar isolation layer 4, the concrete layer 5, the geotextile layer 6, the surface layer 7 and the steel pipe pile 10, the stability and the tensile and shear resistance of the road can be enhanced, and the rainwater infiltration can be reduced, so as to reduce the road settlement. Through the setting of the barrier layer 8 and the composite geomembrane 9, the composite geomembrane 9 is a polyethylene geomembrane, which is smooth in appearance. When the road is settled, the friction can be reduced, the road can be settled as a whole, the appearance can not be affected, the road can not be damaged when settled, in addition, the polyethylene geomembrane has the characteristics of anti-seepage and corrosion resistance, can prevent rainwater from penetrating, and has a long service life.

[0029] The above is only a further embodiment of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and concept of the present application within the scope disclosed by the present application, which belongs to the protection scope of the present application.

Claims

1. A pile foundation side soft soil foundation road friction-eliminating structure, comprising a plurality of pile foundations (1) arranged in the soft soil foundation under a house or station and constituting a plurality of rows, one side of the plurality of pile foundations (1) being a soft soil layer (2), characterized in that, The soft soil layer (2) is sequentially laid with a water-stable gravel layer (3), a mortar isolation layer (4), a concrete layer (5), a geotextile layer (6) and a surface layer (7), and the water-stable gravel layer (3), the mortar isolation layer (4), the concrete layer (5), the geotextile layer (6) and the surface layer (7) are provided with a barrier layer (8) between the adjacent multiple pile foundations (1), the barrier layer (8) is fixedly connected with the pile foundation (1), the outer surface of the barrier layer (8) is laid with a composite geomembrane (9), and the inner side of the soft soil layer (2) is provided with multiple steel pipe piles (10) whose top ends are located on the inner side of the concrete layer (5).

2. A pile foundation side soft soil road friction-eliminating structure according to claim 1, characterized in that, The composite geomembrane (9) is a polyethylene geomembrane.

3. A pile foundation side soft soil road friction-eliminating structure according to claim 1, characterized in that, Two upper and lower baffles (11) are connected between the adjacent two steel pipe piles (10).

4. A pile foundation side soft soil road friction-eliminating structure according to claim 3, characterized in that, The two baffles (11) are located on the inner side of the soft soil layer (2), and a geonet (12) is connected between the two baffles (11).

5. A pile foundation side soft soil road friction-eliminating structure according to claim 4, characterized in that, The geonet (12) is a polyester geonet.

6. A pile foundation side soft soil road friction-eliminating structure according to claim 1, characterized in that, The inner side of the concrete layer (5) is laid with a steel reinforcement cage (13).

7. A pile foundation side soft soil road friction-eliminating structure according to claim 6, characterized in that, The steel reinforcement cage (13) is fixedly connected to the top of the steel pipe pile (10).

8. A pile foundation side soft soil road friction-eliminating structure according to claim 7, characterized in that, The top end of the steel pipe pile (10) is fixedly connected with an upper baffle rod (14).

9. A pile foundation side soft soil road friction-eliminating structure according to claim 3, characterized in that, The steel pipe pile (10) and the baffle (11) are connected with each other through bolts (15).

10. A pile foundation side soft soil road friction-eliminating structure according to claim 9, characterized in that, Mounting holes (16) matched with the bolts (15) are formed in the steel pipe pile (10) and the baffle (11).

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