Hydrophobic ecological sandy soil walkway

Abstract

The utility model discloses a hydrophobic ecological sandy soil walkway which sequentially comprises a hydrophobic wearing layer, a middle layer and a substrate layer from top to bottom, the hydrophobic wearing layer is prepared by mixing gravel, sandy soil and an adhesive; the middle layer comprises a super-hydrophobic soil layer and a natural sedimentary plain soil layer, and the super-hydrophobic soil layer is prepared by mixing sandy soil and hydrophobic emulsion; the natural sedimentary plain soil layer is made of natural sedimentary plain soil or stabilized soil or improved soil; the matrix layer is made of plain soil with the compactness larger than or equal to 93%. According to the utility model, necessary infrastructure support is provided for an ecological sensitive area, and the ecological system can be helped to realize self-repairing and long-acting protection on the premise of not destroying natural ecological balance.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of low-impact development facility engineering, especially to an ecological sandy soil footpath with drainage function, which is suitable for ecological restoration projects such as desertification control, wetland restoration, and other areas that need to restore natural ecological functions, supports walking activities, and can promote the healthy recovery of the natural environment, in line with the goal of sustainable development. BACKGROUND

[0002] Ecological drainage soil road is a road form that combines ecological restoration and walking function. By reasonably selecting hydrophobic materials and construction technology, it can meet the walking needs while protecting the natural environment. This design is based on the concept of low-impact development, which can maintain the soil's permeability and self-repairing ability to some extent, while avoiding the destruction of traditional hardened roads to the ecological system. However, the current ecological drainage soil road faces some problems in application. The most significant limitation is its strong dependence on soil conditions, making it difficult to implement effective construction in sandy areas, only suitable for areas with good cohesive soil. This limitation is particularly evident in ecologically fragile areas, such as sandy areas. If traditional hardened footpaths are forcibly used, not only will it disrupt the natural infiltration path of rainwater, increasing surface runoff, but it may also exacerbate soil erosion, affecting regional ecological balance. In the future, the design and material technology of ecological drainage soil road need to be further optimized to improve its adaptability and achieve more widespread application, especially in sandy and ecologically sensitive areas. SUMMARY

[0003] In view of the deficiencies of the prior art, the utility model provides an ecological sandy soil footpath with drainage function, which can minimize damage to the natural environment while providing stable walking conditions and promoting ecological restoration.

[0004] The specific technical solutions are as follows:

[0005] An ecological sandy soil footpath with drainage function includes, from top to bottom, a hydrophobic wearing layer, an intermediate layer, and a substrate layer. The hydrophobic wearing layer is made of crushed stone, sandy soil, and adhesive.

[0006] The intermediate layer includes a super-hydrophobic soil layer and a natural sedimentary soil layer. The super-hydrophobic soil layer is made of sandy soil and hydrophobic emulsion. The natural sedimentary soil layer is made of natural sedimentary soil, stabilized soil, or improved soil.

[0007] The substrate layer is made of natural soil and is compacted to a density of 93% or more.

[0008] Further, it also includes a water-permeable geotextile, which is arranged between the hydrophobic wearing layer and the intermediate layer to prevent the hydrophobic wearing layer from sinking.

[0009] Further, the ecological sandy soil walkway is provided with vegetation road shoulders on both sides, the inclination direction of the vegetation road shoulders points to the ecological sandy soil walkway, and the vegetation height is higher than that of the ecological sandy soil walkway.

[0010] Further, the slope ratio of the vegetation road shoulder is less than or equal to 1:3.

[0011] Further, the thickness of the hydrophobic wearing layer is 100mm, the thickness of the super-hydrophobic soil layer is 200mm, and the thickness of the natural deposition soil layer is 150mm.

[0012] Further, the material ratio of the hydrophobic wearing layer is adjusted according to the regional terrain and ecological system demand, for a rainwater convergence area, the hydrophobic wearing layer is mainly composed of gravel and supplemented by sandy soil, and is bonded by an adhesive; for a rainwater slow flow area, the hydrophobic wearing layer is mainly composed of sandy soil and supplemented by gravel, and is bonded by an adhesive.

[0013] The hydrophobic ecological sandy soil walkway has the advantages that:

[0014] The hydrophobic ecological sandy soil walkway not only provides necessary infrastructure support for an ecological sensitive area, but also helps the ecological system to realize self-repairing and long-term protection without destroying the natural ecological balance, the material of the hydrophobic wearing layer can automatically adjust the porosity with the change of temperature or humidity, the hydrophobic and water permeable performance is maintained, the maintenance cost in long-term use is reduced, the core concept of low-impact development is met, and the hydrophobic ecological sandy soil walkway has a wide application prospect. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a planar arrangement drawing of the hydrophobic ecological sandy soil walkway provided by the utility model embodiment.

[0016] Figure 2 is a sectional view of the hydrophobic ecological sandy soil walkway provided by the utility model embodiment.

[0017] In the drawing, the hydrophobic wearing layer 1, the vegetation road shoulder 2, the water permeable geotextile 3, the super-hydrophobic soil layer 4, the natural deposition soil layer 5 and the rammed soil layer 6. DETAILED DESCRIPTION

[0018] The purpose and effect of the utility model will become more apparent from the following detailed description of the utility model according to the drawings and preferred embodiments, and the utility model will be further described in detail in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0019] As Figure 1 and Figure 2As shown, a hydrophobic ecological sand walking path comprises, from top to bottom, a hydrophobic wearing layer 1, an intermediate layer, and a matrix layer. The multi-layer structure ensures that rainwater can quickly pass through the surface layer of the walking path, enter the bottom layer, and penetrate into the ground, avoiding water and soil loss and promoting water circulation.

[0020] The ecological sand walking path is designed with vegetation shoulders 2 on both sides. The vegetation is slightly higher than the walking path and slopes towards the ecological sand walking path, forming a natural boundary and guiding rainwater infiltration. The slope of the vegetation shoulders 2 is relatively gentle, within a safe range, to ensure structural stability and aesthetics, as well as convenient vegetation growth and maintenance. In this embodiment, the slope ratio is less than or equal to 1:3.

[0021] The hydrophobic wearing layer 1 uses a mixture of adhesive gravel and sand. In this embodiment, the particle size of the gravel is 10-20mm, and the thickness of the hydrophobic wearing layer 1 is 100nm. These materials have excellent water permeability, allowing rainwater to quickly drain away without accumulating on the surface, keeping the walking path dry and safe.

[0022] The intermediate layer includes a super-hydrophobic soil layer 4 and a natural sedimentary soil layer 5. The super-hydrophobic soil layer 4 is a sand layer mixed with a hydrophobic emulsion, and the sand is sourced locally. In this embodiment, the thickness of the super-hydrophobic soil layer 4 is 200mm, and the hydrophobic emulsion is an environmentally friendly nano-super-hydrophobic emulsion, with a dosage range of 12-15kg / m 2 . After mixing, it is compacted to a density of 93%. In the case of environmental support, the natural sedimentary soil layer 5 uses materials that are preferentially the natural sedimentary soil, stabilized soil, or improved soil in the construction environment (if not supported, then natural sedimentary soil or stabilized soil or improved soil is transported). It is compacted to a density of 93%, allowing it to maintain water permeability while also having good support; in this embodiment, the thickness of the natural sedimentary soil layer 5 is 150mm. The super-hydrophobic soil layer 4 and the natural sedimentary soil layer 5 support the hydrophobic wearing layer 1 while still maintaining the natural permeability and respiration of the soil, reducing interference with the groundwater system, and providing good soil conditions for the natural growth of plants.

[0023] The matrix layer of the ecological sand walking path is the compacted soil layer 6, which is composed of soil and can be sourced locally, but needs to be further compacted to a density greater than or equal to 93% to form a firm foundation.

[0024] The construction of ecological sand walkway can adapt to the terrain and ecological system requirements of different regions, for example, the water-repellent wearing layer 1 in the rainwater convergence area can be mainly composed of gravel, and the water-repellent wearing layer 1 in the slow rainwater flow area can be mainly composed of sand. In addition, the construction can also be carried out according to different walkway design requirements to reduce the interference to the surrounding environment, for example, if it is intended to emphasize the sand soil background condition of the site, the water-repellent wearing layer 1 can be mainly composed of sand; if it is intended to create a color ecological sand road, the water-repellent wearing layer 1 is matched with gravel having a color contrasting with the color of the local sand.

[0025] In the high-value and high-standard construction area of the ecological sand walkway, the water-repellent ecological sand walkway further comprises a water-permeable geotextile 3 arranged between the water-repellent wearing layer 1 and the intermediate layer, which is used to prevent ground subsidence and make the water-repellent wearing layer 1 more flat; the reason for the ground subsidence can be that the super water-repellent soil layer 4 is softened due to rainwater, and the gravel of the water-repellent wearing layer 1 is embedded in the super water-repellent soil layer 4, resulting in the surface of the water-repellent wearing layer 1 being concave.

[0026] Those skilled in the art can understand that the above description is only a preferred example of the utility model, and is not used to limit the utility model, although the utility model is described in detail with reference to the foregoing examples, those skilled in the art can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features. Any modification, equivalent replacement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A hydrophobic, ecological sand walkway, characterized in that From top to bottom in turn includes: hydrophobic wearing layer, intermediate layer, matrix layer; the hydrophobic wearing layer is made of gravel, sandy soil, binder mixed; The intermediate layer includes super-hydrophobic soil layer and natural sedimentary soil layer, the super-hydrophobic soil layer is made of sandy soil and hydrophobic emulsion mixed; the material of the natural sedimentary soil layer is selected from natural sedimentary soil, stabilized soil or improved soil; The matrix layer adopts soil, and is tamped with a compactness greater than or equal to 93%.

2. The hydrophobizable, eco-sand walkway according to claim 1, characterized in that, It also includes a water-permeable geotextile, which is arranged between the hydrophobic wearing layer and the intermediate layer, for preventing the hydrophobic wearing layer from sinking.

3. The hydrophobized, eco-sand walkway according to claim 1, characterized in that, The ecological sandy soil walking path is provided with vegetation road shoulders on both sides, the inclination direction of the vegetation road shoulders points to the ecological sandy soil walking path, and the vegetation height is higher than that of the ecological sandy soil walking path.

4. The hydrophobizable, eco-sand walkway according to claim 3, characterized in that, The slope ratio of the vegetation road shoulder is less than or equal to 1:

3.

5. The hydrophobized, eco-sand walkway according to claim 1, characterized in that, The thickness of the hydrophobic wearing layer is 100mm, the thickness of the super-hydrophobic soil layer is 200mm, and the thickness of the natural sedimentary soil layer is 150mm.

6. The hydrophobized, eco-sand walkway of claim 1, wherein, The material ratio of the hydrophobic wearing layer is adjusted according to the regional terrain and ecological system demand, for the rainwater convergence area, the hydrophobic wearing layer is mainly gravel, supplemented by sandy soil, and is bonded by adhesive; for the rainwater slowly flowing area, the hydrophobic wearing layer is mainly sandy soil, supplemented by gravel, and is bonded by adhesive.

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