Flood control roadbed for municipal roads and bridges

Abstract

The utility model provides a flood control roadbed for municipal roads and bridges, and belongs to the technical field of roadbeds. Comprising a plurality of filling layers, geogrids are arranged between the filling layers, a plurality of reinforcing rods penetrating through the geogrids are inserted into the filling layers, supporting rings are connected to the reinforcing rods in a sliding mode, a plurality of inserting cones are arranged on the circumference of the bottom of each supporting ring, and barbs are arranged on the inserting cones; an isolation plate is arranged on the periphery of the filling layer, and a concrete layer is arranged on the periphery of the isolation plate. The filling layers are organically combined with the inserting cones, the supporting rings, the reinforcing rods and the geogrids, so that the filling layers form a whole, the structural stability between the filling layers can be effectively improved, the isolation plates and the concrete layers are arranged on the peripheries of the filling layers, and therefore the filling layers are more stable. Therefore, excessive water permeating into each filling layer is effectively prevented, the permeating water is drained to the underground, the flood-fighting capacity of the roadbed is further enhanced, and the roadbed is prevented from collapsing due to the fact that the roadbed is impacted and scoured by flood.

Description

Technical Field

[0001] The utility model provides a flood control subgrade for municipal road bridges, belonging to the technical field of subgrades. Background Technique

[0002] The subgrade is the foundation of the track or road surface, and is a geotechnical structure formed by excavation or filling. The main function of the subgrade is to provide necessary conditions for the laying of the track or road surface and the operation of trains or vehicles. Subgrade flood control is to prevent the inundation and scouring of the subgrade by floods, so that the subgrade will not be peeled off, sunken, collapsed, or even washed away and interrupted the train operation. For the subgrades in gorges with rapid currents, along rivers, lakes, and coasts, the scouring of floods and the invasion of waves on the subgrade are strong.

[0003] The existing subgrade mainly consists of multiple filling layers. The multiple filling layers include a plain soil layer, a gravel filling layer, a coarse sand layer, a waterproof layer, and an asphalt layer from bottom to top. A geogrid is provided between each filling layer. The geogrid has the advantages of high strength, high stiffness, good compressive capacity, and strong corrosion resistance. However, based on the above structure and the existing technology, it is found that the geogrids between each filling layer are often separated, and only the cohesive force between the filling layers is provided, which makes the structural stability between each filling layer relatively poor. Moreover, when the surrounding of each filling layer is scoured by floods, the water flow will penetrate between each filling layer and cannot be drained to the ground in time, and there is a risk of collapse caused by being impacted and scoured by floods. Based on this, the utility model provides a flood control subgrade for municipal road bridges. Content of the Utility Model

[0004] The technical problem solved by the utility model is that the structural stability between each filling layer is relatively poor, and the water flow will penetrate between each filling layer and cannot be drained to the ground in time, and there is a risk of collapse caused by being impacted and scoured by floods.

[0005] In order to solve the technical problem, the technical solution provided by the utility model is: a flood control subgrade for municipal road bridges, including multiple filling layers, a geogrid is provided between the filling layers, multiple reinforcing rods passing through the geogrid are inserted into the filling layers, a support ring is slidably connected to the reinforcing rods, a plurality of insertion cones are provided on the circumferential bottom of the support ring, and barbs are provided on the insertion cones; isolation plates are provided around the filling layers, and concrete layers are provided around the isolation plates.

[0006] Further, a pointed cone head inserted into the ground is provided at the bottom of the reinforcing rod.

[0007] Further, the multiple filling layers are, from bottom to top, a plain soil layer, a gravel filling layer, a coarse sand layer, a waterproof layer, and an asphalt layer in sequence.

[0008] Furthermore, the geogrid is a steel-plastic geogrid, the support ring is made of iron material, and the support ring is fixed to the top of the geogrid by welding.

[0009] Furthermore, limit protrusions matching the inner side wall of the support ring are symmetrically arranged on the side wall of the reinforcing rod.

[0010] Furthermore, a plurality of water channels are arranged on both the outer side wall and the inner side wall of the isolation board.

[0011] Advantages of the utility model:

[0012] By organically combining each filling layer with the insertion cone, the support ring, the reinforcing rod, and each geogrid, each filling layer forms a whole, thereby effectively improving the structural stability between each filling layer. By arranging the isolation board and the concrete layer around each filling layer, it effectively prevents the excessive amount of water infiltrating into each filling layer, making the infiltrated water drain underground, thereby enhancing the flood resistance of the roadbed to prevent the roadbed from collapsing due to being impacted and scoured by floods. Description of the drawings

[0013] Figure 1 It is a schematic structural diagram of a flood control roadbed for a municipal road bridge of the utility model.

[0014] Figure 2 It is a schematic plan view of a flood control roadbed for a municipal road bridge of the utility model.

[0015] Figure 3 It is a schematic partial structure diagram of a flood control roadbed for a municipal road bridge of the utility model Figure 1 .

[0016] Figure 4 It is a schematic partial structure diagram of a flood control roadbed for a municipal road bridge of the utility model Figure 2 .

[0017] 1. Filling layer; 2. Geogrid; 3. Reinforcing rod; 4. Support ring; 5. Insertion cone; 6. Barbs; 7. Isolation board; 8. Concrete layer; 9. Sharp cone head; 10. Plain soil layer; 11. Gravel filling layer; 12. Coarse sand layer; 13. Waterproof layer; 14. Asphalt layer; 15. Limit protrusion; 16. Water channel. Specific embodiments

[0018] The present utility model will be further described below with reference to the drawings.

[0019] According to the attached Figure 1 , 2As shown in the figure: The utility model provides a flood control roadbed for municipal road bridges, which includes a plurality of filling layers 1. The plurality of filling layers 1 are, from bottom to top, a plain soil layer 10, a gravel filling layer 11, a coarse sand layer 12, a waterproof layer 13, and an asphalt layer 14. A geogrid 2 is provided between the filling layers 1. The geogrid 2 is a steel-plastic geogrid. Laying a steel-plastic geogrid between the filling layers 1 has the advantages of high strength, high stiffness, good compressive capacity, and strong corrosion resistance.

[0020] According to the attached Figure 2 、 3 、4 As shown in the figure: A plurality of reinforcing rods 3 are inserted into the filling layer 1 and pass through the geogrid 2. A pointed cone head 9 inserted into the ground is provided at the bottom of the reinforcing rod 3. By inserting the reinforcing rod 3 into the ground, the connection strength between the plurality of filling layers 1 is enhanced. A support ring 4 is slidably connected to the reinforcing rod 3. Symmetrically arranged on the side wall of the reinforcing rod 3 are limiting protrusions 15 that match the inner side wall of the support ring 4, which play a role in limiting the support ring 4. A plurality of insertion cones 5 are provided on the circumference of the bottom of the support ring 4. Barbs 6 are provided on the insertion cones 5. The support ring 4 is made of iron material and is fixed to the top of the geogrid 2 by welding. By organically combining each filling layer 1 with the insertion cones 5, the support ring 4, the reinforcing rods 3, and each geogrid 2, the structural stability between each filling layer 1 can be effectively improved, and thus the compressive and flood resistance capabilities of the roadbed can be enhanced to prevent the roadbed from collapsing due to being impacted and scoured by floods.

[0021] According to the attached Figure 1 As shown in the figure: Isolation plates 7 are provided around the filling layer 1, and a concrete layer 8 is provided around the isolation plates 7. A plurality of water channels 16 are provided on both the outer side wall and the inner side wall of the isolation plates 7. Each filling layer 1 is separated by the concrete layer 8 and the isolation plates 7. When being impacted and scoured by floods, the water flowing from the concrete layer 8 to one side of the isolation plate 7 flows downward through the water channels 16 into the ground, and the water flowing from each filling layer 1 to the other side of the isolation plate 7 through the periphery also flows downward through the water channels 16 into the ground, so that the infiltrated water is drained underground, effectively preventing the roadbed from collapsing.

[0022] The principle of the utility model

[0023] In use, when laying each filling layer 1, first insert the reinforcing rod 3 below the ground, then insert the insertion cone 5 into the corresponding filling layer 1, and then weld and fix the support ring 4 on the top of the geogrid 2. At this time, the barbs 6 will hook the filling layer 1, so that each filling layer 1 is organically combined with the insertion cone 5, the support ring 4, the reinforcing rod 3, and each geogrid 2, making each filling layer 1 form a whole, thereby effectively improving the structural stability between each filling layer 1, and further enhancing the compressive and flood resistance capabilities of the roadbed, so as to prevent the roadbed from collapsing due to being impacted and scoured by floods. When being impacted and scoured by floods, the concrete layer 8 and the isolation board 7 are first impacted and scoured. The structure of the concrete layer 8 is stable and not easily washed away, and the water flowing from the concrete layer 8 to one side of the isolation board 7 flows down through the water chute 16 below the ground, and the water flowing from each filling layer 1 to the other side of the isolation board 7 through the periphery also flows down through the water chute 16 below the ground, thereby effectively preventing the amount of water infiltrating into each filling layer 1 from being excessive, guiding the infiltrated water to drain underground, and effectively preventing the roadbed from collapsing.

[0024] The above describes the present invention and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. All in all, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative work without departing from the gist of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A flood control roadbed for a municipal road or bridge, comprising a plurality of filling layers (1), wherein geogrids (2) are arranged between the filling layers (1), and characterized in that: A plurality of reinforcing rods (3) passing through the geogrid (2) are inserted into the filling layer (1); a support ring (4) is slidably connected to the reinforcing rod (3); a plurality of insert cones (5) are provided on the circumference of the bottom of the support ring (4); and barbs (6) are provided on the insert cones (5); isolation plates (7) are provided around the filling layer (1); and a concrete layer (8) is provided around the isolation plates (7).

2. The flood control roadbed for municipal roads and bridges according to claim 1, characterized in that: The bottom of the reinforcing rod (3) is provided with a pointed cone head (9) inserted below the ground.

3. The flood control roadbed for municipal roads and bridges according to claim 1, characterized in that: The multiple filling layers (1) are, from bottom to top, a plain soil layer (10), a crushed stone filling layer (11), a coarse sand layer (12), a waterproof layer (13), and an asphalt layer (14).

4. The flood control roadbed for municipal roads and bridges according to claim 1, characterized in that: The geogrid (2) is made of steel-plastic geogrid, the support ring (4) is made of iron material, and the support ring (4) is fixed to the top of the geogrid (2) by welding.

5. The flood control roadbed for municipal roads and bridges according to claim 1, characterized in that: The side wall of the reinforcing rod (3) is symmetrically provided with a limiting protrusion (15) matching the inner side wall of the supporting ring (4).

6. The flood control roadbed for municipal roads and bridges according to claim 1, characterized in that: A plurality of water flow grooves (16) are provided on the outer side wall and the inner side wall of the isolation plate (7).

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