Three-dimensional reinforced drainage composite ecological slope protection high-fill roadbed structure

Abstract

The utility model discloses a three-dimensional reinforced drainage composite ecological slope protection high fill roadbed structure which comprises a roadbed, geocells, capillary drainage pipes, composite fiber nets, fiber bands and gravel-containing planting soil, the geocells are arranged in the roadbed in a layered mode, the capillary drainage pipes transversely penetrate through the side walls of the geocells along a road and stretch into the gravel-containing planting soil, and the composite fiber nets are arranged on the capillary drainage pipes. Composite fiber nets are arranged on the two sides of the gravel-containing planting soil, and fiber belts are arranged in the gravel-containing planting soil for connection to form three-dimensional reinforcing ribs. The capillary drainage pipes and the earthwork standard rooms are arranged in a combined mode, the capillary drainage pipes can rapidly and continuously drain water in the roadbed, the earthwork standard rooms can support and protect the capillary drainage pipes, the capillary drainage pipes are prevented from being damaged and losing efficacy, three-dimensional reinforced gravel-containing planting soil is formed on the side slope side, stability is good, proper plants are planted in the planting soil, and an ecological side slope is formed. And a part of water required by plant growth can be continuously supplied by the capillary drainage pipe.

Description

Technical Field

[0001] The utility model belongs to the field of roadbed filling construction, in particular to a three-dimensional reinforced drainage composite ecological slope protection high fill roadbed structure. Background Art

[0002] During high-fill roadbed construction, especially when using rock or crushed stone fill materials with a high clay content, the strength and stability of the roadbed can be improved by installing multi-layer geogrids or geocells. However, when rainfall infiltrates, the presence of clay reduces the permeability of the roadbed fill material, making it difficult to drain the internal water in a timely manner. This ultimately causes the water content in the roadbed to accumulate and increase, leading to "flooding" in the roadbed, seriously affecting its stability, durability, and driving safety. Furthermore, the slope surface of high-fill roadbeds is relatively large, requiring consideration of its stability, ecological aesthetics, and subsequent maintainability. Utility Model Content

[0003] The purpose of the utility model is to address the water hazard problem of high fill roadbed and the stability and ecological problems of the slope, and propose a three-dimensional reinforced drainage composite ecological slope protection high fill roadbed structure.

[0004] In order to achieve the purpose, the following technical solution is adopted.

[0005] The utility model relates to a three-dimensional reinforced drainage composite ecological slope protection high fill roadbed structure, which comprises a roadbed, a geocell, a capillary drainage pipe, a composite fiber net, a fiber belt and planting soil containing crushed stones;

[0006] The roadbed is located on the foundation, a filter geotextile is provided on the slope side of the roadbed, the geocells are arranged in layers within the roadbed, the gravel-containing planting soil is located on the slope side of the roadbed, composite fiber meshes are provided on both sides of the gravel-containing planting soil, the left and right sides of the composite fiber meshes are connected by fiber belts, and the composite fiber mesh on the right side is fixed to the filter geotextile and / or the geocells;

[0007] The capillary drainage pipe passes through the side wall of the geocell transversely along the road, and passes through the anti-filtration geotextile and the composite fiber mesh on the right side on the slope side in sequence, and extends into the planting soil containing gravel;

[0008] A roadbed and a pavement layer are laid on the roadbed in sequence.

[0009] Preferably, the composite fiber mesh on the right is fixed to the filter geotextile and the geocell via connecting buckles.

[0010] Preferably, the capillary drainage pipe is covered with a geofilter cloth.

[0011] Preferably, a roadbed drainage ditch is provided on the foundation at the bottom of the slope of the roadbed.

[0012] Preferably, pavement drainage ditches are provided on the sides of the roadbed and pavement layer.

[0013] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects:

[0014] 1. The geocells of the three-dimensional reinforced drainage composite ecological slope protection high fill roadbed structure involved in the utility model are arranged in layers in the roadbed, and the capillary drainage pipes pass through the side walls of the geocells horizontally along the road. The capillary drainage pipes pass through the anti-filtration geotextile and the composite fiber mesh on the right side on the slope side in turn, and extend into the planting soil containing gravel. The capillary drainage pipes are arranged in combination with the geocells, which is convenient for construction. At the same time, during the roadbed filling and rolling process and under vehicle loads during operation, the geocells can support and protect the capillary drainage pipes to avoid damage and failure of the capillary drainage pipes. The capillary drainage pipes are made of capillary fibers with a porous structure, have good water permeability, and can quickly and continuously discharge water from the roadbed.

[0015] 2. The three-dimensional reinforced drainage composite ecological slope protection high fill roadbed structure involved in the present invention is filled with gravel-containing planting soil between the composite fiber meshes on the side of the roadbed slope. The composite fiber mesh and the fiber belt have a three-dimensional reinforcement effect. The composite fiber mesh is effectively connected to the geocell and combined with the gravel skeleton to jointly maintain the stability of the slope; suitable plants are planted in the gravel-containing planting soil to form an ecological slope, and the capillary drainage pipe extends into the planting soil to sustainably replenish part of the water required for plant growth in the planting soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the high fill roadbed structure with three-dimensional reinforcement and drainage composite ecological slope protection;

[0017] Figure 2 It is a plan of a geocell;

[0018] Figure 3 Schematic diagram of capillary drainage pipe passing through geocell.

[0019] Markings in the figure: 1-foundation, 2-roadbed, 3-roadbed, 4-pavement layer, 5-geocell, 6-capillary drainage pipe, 7-geofilter cloth, 8-composite fiber mesh, 9-fiber belt, 10-planting soil containing crushed stone, 11-anti-filter geotextile, 12-connecting buckle, 13-roadbed drainage ditch, 14-pavement drainage ditch. DETAILED DESCRIPTION

[0020] In order to deepen the understanding of the present invention, the following reference is made to the attached Figure 1 To the attached Figure 3 , the embodiments of the present invention are described in detail. The following embodiments are implemented on the premise of the technical solution of the present invention, and detailed implementation methods are given, but the protection scope of the present invention is not limited to the following embodiments.

[0021] Combined with attachment Figure 1 As shown, the utility model involves a three-dimensional reinforced drainage composite ecological slope protection high fill roadbed structure with a height of 6m, divided into five layers, each layer is 1.2m, including a roadbed 2, a geocell 5, a capillary drainage pipe 6, a composite fiber mesh 8, a fiber belt 9 and gravel-containing planting soil 10.

[0022] The roadbed 2 is located on the foundation 1. The geocell 5 has a cell size of 40×40×15 cm and is arranged in five layers within the roadbed 2. The plan view of the geocell 5 is shown in the attached figure. Figure 2 The capillary drainage pipe 6 has a diameter of 2 cm and is made of capillary fibers with a porous structure and is covered with a geotextile filter cloth 7. Figure 3 As shown, the geocell 5, which runs transversely along the road, has good water permeability, allowing for rapid and continuous drainage of roadbed water. Furthermore, during the layered filling and compaction of the roadbed 2 and under vehicle loads during operation, the geocell 5 provides support and protection for the capillary drain pipe 6, preventing damage and failure. On the slope side, the capillary drain pipe 6 sequentially passes through the anti-filtration geotextile 11 and the composite fiber mesh 8 on the right side, extending 20 cm into the gravel-containing planting soil 10, continuously replenishing some of the moisture required for plant growth in the planting soil.

[0023] Combined with attachment Figure 1 and attached Figure 2 As shown, the gravel-containing planting soil 10 is located on the slope side of the roadbed 2, with a gravel content of 50% to 60%. Composite fiber meshes 8 with a mesh size of 5×5 cm are provided on both sides of the gravel-containing planting soil 10. The left and right sides of the composite fiber mesh 8 are connected by a fiber belt 9, which plays a three-dimensional reinforcement role. The composite fiber mesh 8 on the right side and the anti-filtration geotextile 11 and the geocell 5 are fixed by connecting buckles 12. Combined with the gravel skeleton, they jointly maintain the stability of the slope. Suitable plants are planted in the gravel-containing planting soil 10 to form an ecological slope.

[0024] Combined with attachment Figure 1 As shown, a roadbed 3 and a pavement layer 4 are laid on the roadbed 2 in sequence, pavement drainage ditches 14 are set on the sides of the roadbed 3 and the pavement layer 4, and a roadbed drainage ditch 13 is set on the foundation 1 at the bottom of the slope of the roadbed 2.

[0025] The above describes the present invention in detail with reference to the embodiments. However, the above contents are only preferred embodiments of the present invention and should not be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent application of the present invention.

Claims

1. A three-dimensional reinforced drainage composite ecological slope protection high fill roadbed structure, characterized by: It includes a roadbed (2), a geocell (5), a capillary drainage pipe (6), a composite fiber net (8), a fiber belt (9) and a planting soil containing crushed stones (10); The roadbed (2) is located on the foundation (1), a filter geotextile (11) is provided on the slope side of the roadbed (2), the geocell (5) is layered in the roadbed (2), the gravel-containing planting soil (10) is located on the slope side of the roadbed (2), composite fiber meshes (8) are provided on both sides of the gravel-containing planting soil (10), the left and right sides of the composite fiber mesh (8) are connected by a fiber belt (9), and the composite fiber mesh (8) on the right side is fixed to the filter geotextile (11) and / or the geocell (5); The capillary drainage pipe (6) passes through the side wall of the geocell (5) in the transverse direction of the road, and the capillary drainage pipe (6) passes through the anti-filter geotextile (11) and the composite fiber mesh (8) on the right side on the slope side in sequence, and extends into the planting soil (10) containing gravel; A roadbed (3) and a pavement layer (4) are laid in sequence on the roadbed (2).

2. The three-dimensional reinforced drainage composite ecological slope protection high fill roadbed structure according to claim 1 is characterized by: The composite fiber mesh (8) on the right side is fixed to the anti-filtration geotextile (11) and the geocell (5) via a connecting buckle (12).

3. The three-dimensional reinforced drainage composite ecological slope protection high fill roadbed structure according to claim 1 is characterized by: The capillary drainage pipe (6) is covered with a geotextile filter cloth (7).

4. The three-dimensional reinforced drainage composite ecological slope protection high fill roadbed structure according to claim 1 is characterized by: A roadbed drainage ditch (13) is provided on the foundation (1) at the bottom of the slope of the roadbed (2).

5. The three-dimensional reinforced drainage composite ecological slope protection high fill roadbed structure according to claim 1 is characterized by: Pavement drainage ditches (14) are provided on the sides of the roadbed (3) and the pavement layer (4).

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