CN219395680U - Ecological slope protection structure and slope protection blanket - Google Patents
Ecological slope protection structure and slope protection blanket Download PDFInfo
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- CN219395680U CN219395680U CN202223086125.XU CN202223086125U CN219395680U CN 219395680 U CN219395680 U CN 219395680U CN 202223086125 U CN202223086125 U CN 202223086125U CN 219395680 U CN219395680 U CN 219395680U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
Abstract
The utility model discloses an ecological slope protection structure which comprises a side slope and is characterized in that a cloth-shaped material layer is fixedly covered on the side slope, and a microalgae layer is arranged on the upper surface of the cloth-shaped material layer. The slope protection blanket is characterized in that the upper surface of the cloth-shaped material layer is compositely provided with a water-retaining material layer, and the water-retaining material layer is externally provided with a microalgae layer. The utility model has the advantages of simple structure, convenient implementation, convenient maintenance and good soil fixation protection effect.
Description
Technical Field
The utility model relates to the field of slope protection, in particular to an ecological slope protection structure and a slope protection blanket.
Background
With the continuous construction of highways and railways, exposed soil of a large-area side slope inevitably appears, and a large amount of dust and wind sand pose a great threat to the local ecological environment and resident health. Wind sand belongs to a poor soil body in engineering materials, and vegetation degradation, water and soil loss and land desertification are aggravated by a loose sand grain structure. Therefore, the need for soil consolidation of road slopes is also becoming increasingly urgent.
Current methods for soil solidification mainly include engineering techniques, chemical techniques and biotechnology. The engineering soil fixing technology mainly adopts various engineering measures, such as setting materials such as wheat straw, nylon net and high-density polyethylene and the like as barriers on soil, so as to seal, fix, block, dredge and dissipate the soil, and finally achieve the purpose of wind prevention and soil fixing. However, the engineering soil fixing method has the problems of huge engineering quantity, high cost and the like, and cannot be popularized and applied in a large area. The chemical soil fixing technology mainly combines loose soil together by adding chemical cementing substances, so that the stability of the loose soil is enhanced. The soil fixing technology has the advantages of quick effect and high cost, and chemical substances added into the soil are likely to cause secondary pollution of the environment. In conclusion, research and development of an efficient, green and pollution-free soil-fixing method are particularly important.
The biological soil-fixing technology can be divided into plant soil-fixing and microbial soil-fixing, and is a novel biological ore-forming method in the field of geotechnical engineering. Many soil-fixing plants have good windproof and soil-fixing capability, can adapt to drought soil environments, and play an important role in recovering degraded lands. The soil ecological environment needing to be fixed is bad, the general survival rate of plants is short, and the growth period is long, so that the soil fixing technology of the plants is not popularized and used in a large area.
Therefore, how to provide a slope protection technology with simple structure, convenient maintenance and good soil fixing protection effect becomes a problem to be considered by the technicians in the field.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to solve the technical problems that: how to provide a simple structure, it is convenient to implement, it is convenient to maintain, solid ecological slope protection structure and side slope protection blanket that soil protection effect is good.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides an ecological slope protection structure, includes side slope, its characterized in that, fixed cover is provided with one deck cloth form material layer on the side slope, and cloth form material layer upper surface is provided with one deck little algae layer.
The cloth-like material layer has good water absorption effect, and can well absorb water and nutrient substances (the nutrient substances can be from watering or the side slope) for microalgae to grow and reproduce when being covered on the side slope during watering and maintenance, and soil is fixed by utilizing the microbial soil fixing effect. Since microalgae are microorganisms, an induced calcium carbonate precipitation effect can be produced during growth and propagation. Rapidly generating calcium carbonate with cementing effect, and agglomerating loose soil together to improve soil strength; meanwhile, the urea in the environment is decomposed into ammonium and carbonate ions by the microorganism through the produced urease, and the exogenously added calcium ions are accumulated near the negatively charged microorganism cells to form calcium carbonate precipitates, so that the purpose of cementing the sandy soil is achieved. At present, the microbial soil fixing technology has become a hotspot for domestic and foreign research, but no microbial soil fixing product with simple structure and convenient implementation exists. Therefore, the application well fills the technical gap in the aspect and has better implementation significance.
Further, the cloth-like material layer is woven by degradable fiber materials.
Thus, the cloth-like material layer has good water retention and permeability, and can simultaneously propagate a lot of microalgae on the side slope and degrade at the later stage when plants start growing, so as to eliminate the influence on plant growth, and can also provide nutrition for the growth of the microalgae and plants after self degradation.
Further, the microalgae layer is obtained by using chlorella vulgaris or sargassum horneri. Has the advantages of strong vitality, fast propagation speed and good soil fixing effect.
Further, a water-retaining material layer is compositely arranged on the upper surface of the cloth-shaped material layer, and the microalgae layer is arranged outside the water-retaining material layer. In this way, the water retention effect can be further improved. The water-retaining material layer can be made of polyvinyl alcohol, sodium carboxymethyl cellulose, activated carbon, diatom ooze and other materials which are existing in the prior art, and has good water-retaining effect, safety and no harm.
Further, a layer of nutritional material layer is arranged between the water-retaining material layer and the cloth-like material layer. Thus, the method can better ensure that enough nutrition is provided for the early-stage propagation of microalgae. The nutritive material layer is embodied by the existing nutritive materials which can be directly absorbed and utilized by microalgae, and the detailed description is omitted.
Further, a nutrition soil layer is arranged below the cloth-shaped material layer. Thus, the method can better ensure that enough nutrition is provided for the early-stage propagation of microalgae.
Further, plant seeds are buried in the nutrient material layer and/or the nutrient soil layer. Thus, the growth of green plants can be better facilitated. After the green plants grow, the soil fixing and slope protection effects are better realized together with the microalgae.
Further, a layer of stone cage net cage is arranged on the upper surface of the side slope, stone blocks are filled in the stone cage net cage, and the nutrient soil layer is arranged on the upper surface of the stone dragon net cage.
Therefore, part of nutrient soil can fall into stone gaps of the gabion net cage, water and soil loss is avoided, and nutrition is continuously provided for microalgae above and green plants.
Further, the adjacent gabion net cages are bound and connected into a whole. Therefore, the slipping of the gabion net cage can be better avoided, so that the gabion net cage can be suitable for steeper slopes.
Further, the edge part of the cloth-shaped material layer is bound and fixed on the gabion net cage through metal wires. In this way, the fixing effect of the cloth-like material layer can be improved better.
Further, the middle position of the cloth-shaped material layer is fixedly inserted on the gabion net cage by virtue of piles and nails which are arranged at intervals. Thus, the attaching and fixing effect of the cloth-like material layer and the lower layered structure can be better improved.
Further, the lower ends of the piles are inserted into the side slope through the gabion net cage. Therefore, the gabion net cages can be further nailed and fixed on the side slope, and the overall structure stabilizing effect is better improved.
Further, a water supply pipe is also arranged on the side slope, and a water supply hole is arranged on the water supply pipe.
Thus, water supply maintenance can be better realized, and the water supply pipe can be arranged at the top of the slope or buried below the cloth-shaped material layer during implementation. The water supply pipe may be connected to a municipal water pipe or to a reservoir.
The utility model also discloses a side slope protection blanket, which comprises a protection blanket body formed by cloth-shaped material layers, wherein the upper surface of each cloth-shaped material layer is compositely provided with a water-retaining material layer, and the water-retaining material layer is externally provided with a microalgae layer.
Thus, the cloth-like material layer, the water-retaining material layer and the microalgae in the ecological slope protection structure are independently produced, so that the ecological slope protection structure is more convenient to implement and construct. The produced slope protection blanket can be further provided with a nutritional material layer between the water-retaining material layer and the cloth-like material layer as in the scheme of the ecological slope protection structure. To provide more convenient and sufficient nutrition. Further, plant seeds are buried in the nutritional material layer; the side slope protection is better provided after the later-stage plant sprouting.
According to the scheme, an ecological slope protection structure combining microalgae with green plants is adopted, the non-woven fabric in the plant germination process is replaced by the topmost green algae layer, and microorganisms grow along with algae, urea in the environment is decomposed into ammonium and carbonate ions through produced urease, and calcium ions added from an external source are accumulated near negatively charged microbial cells to form calcium carbonate precipitates, so that the purpose of cementing surface sand is achieved. The stone is added into the gabion mesh, so that soil can be effectively limited in the gabion mesh, the anti-scouring capability of the base material is greatly improved, and water and soil loss caused by storm is effectively avoided; under drought conditions, the whole ecological slope protection can be supplied with water through a water supply pipe communicated with the top reservoir, so that stronger drought resistance is provided; the method is suitable for various engineering side slope landscape greening and vegetation reconstruction projects such as high and steep rock side slopes, concrete anchor spraying side slopes, mountain park side slopes and the like.
Therefore, in conclusion, the soil fixing device has the advantages of simple structure, convenience in implementation, convenience in maintenance and good soil fixing and protecting effects.
Drawings
Fig. 1 is a schematic plan view of an ecological slope protection structure in an embodiment.
Fig. 2 is a schematic view of a layered structure of the ecological slope protection structure in the embodiment.
Fig. 3 is an enlarged schematic view of the structure at a in fig. 2.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
Best mode for carrying out the utility model: referring to fig. 1-3, an ecological slope protection structure comprises a side slope and is characterized in that a cloth-shaped material layer 2 is fixedly covered on the side slope 1, and a microalgae layer 3 is arranged on the upper surface of the cloth-shaped material layer 2.
The cloth-like material layer has good water absorption effect, and can well absorb water and nutrient substances (the nutrient substances can be from watering or the side slope) for microalgae to grow and reproduce when being covered on the side slope during watering and maintenance, and soil is fixed by utilizing the microbial soil fixing effect. Since microalgae are microorganisms, an induced calcium carbonate precipitation effect can be produced during growth and propagation. Rapidly generating calcium carbonate with cementing effect, and agglomerating loose soil together to improve soil strength; meanwhile, the urea in the environment is decomposed into ammonium and carbonate ions by the microorganism through the produced urease, and the exogenously added calcium ions are accumulated near the negatively charged microorganism cells to form calcium carbonate precipitates, so that the purpose of cementing the sandy soil is achieved. At present, the microbial soil fixing technology has become a hotspot for domestic and foreign research, but no microbial soil fixing product with simple structure and convenient implementation exists. Therefore, the application well fills the technical gap in the aspect and has better implementation significance.
Wherein the cloth-like material layer 2 is woven by degradable fiber materials.
Thus, the cloth-like material layer has good water retention and permeability, and can simultaneously propagate a lot of microalgae on the side slope and degrade at the later stage when plants start growing, so as to eliminate the influence on plant growth, and can also provide nutrition for the growth of the microalgae and plants after self degradation. The fiber material can be formed by needling or braiding natural or synthetic fibers with degradable property, and has good water permeability and a permeability coefficient of 0.01-0.1.
Wherein the microalgae layer 3 is obtained from Chlorella vulgaris or Critifera. Has the advantages of strong vitality, fast propagation speed and good soil fixing effect. In the specific implementation, the microalgae layer can be very thin, and a layer of initial microalgae can be used for propagation, and the thickness can be about 1 mm.
Wherein, the upper surface of the cloth-like material layer 2 is compositely provided with a water-retaining material layer 4, and the microalgae layer 3 is arranged outside the water-retaining material layer 4. In this way, the water retention effect can be further improved. The water-retaining material layer can be made of polyvinyl alcohol, sodium carboxymethyl cellulose, activated carbon, diatom ooze and other materials which are existing in the prior art, and has good water-retaining effect, safety and no harm.
Wherein, a layer of nutrition material layer 5 is arranged between the water-retaining material layer 4 and the cloth-like material layer 2. Thus, the method can better ensure that enough nutrition is provided for the early-stage propagation of microalgae. The nutritive material layer is embodied by the existing nutritive materials which can be directly absorbed and utilized by microalgae, and the detailed description is omitted.
Wherein, a layer of nutrition soil layer 6 is arranged below the cloth-shaped material layer 2. Thus, the method can better ensure that enough nutrition is provided for the early-stage propagation of microalgae.
Wherein, plant seeds are buried in the nutrient material layer and/or the nutrient soil layer. Thus, the growth of green plants can be better facilitated. After the green plants grow, the soil fixing and slope protection effects are better realized together with the microalgae. In practice, plant seeds are selected by considering local climatic conditions, and plant seeds such as festuca arundinacea, acantha fortunei, purple spike, white clover, bermuda grass and the like are selected for areas with sufficient rainfall, while alfalfa, perennial ryegrass and the like are selected for arid areas.
Wherein, slope 1 upper surface is provided with one deck gabion box with a net 7, and the intussuseption of gabion box with a net 7 is filled with the stone, and the stone dragon box with a net upper surface sets up the nutrition soil layer.
Therefore, part of nutrient soil can fall into stone gaps of the gabion net cage, water and soil loss is avoided, and nutrition is continuously provided for microalgae above and green plants. The gabion layer can be formed by gabion net cages with the structure size of 100cm multiplied by 10cm, the net cage structure size is 1.0m multiplied by 0.1m, the steel wire net adopts Zn-10% Al alloy steel wires, the tensile strength of the steel wires is more than 400MPa, and the elongation is more than or equal to 10%; the weight of each square meter of the coating is more than 50g; the ratio of the thickest part to the thinnest part of the steel wire coating is not more than 2. The mesh size of the steel wire is 10mm multiplied by 10mm, the diameter of the net wire is 1mm, and the diameter of the side wire is 3mm.
Wherein, the adjacent gabion net cages 7 are bound and connected into a whole. Therefore, the slipping of the gabion net cage can be better avoided, so that the gabion net cage can be suitable for steeper slopes. In implementation, the single net cage is firstly bound and formed, and then the adjacent net cage is bound. 4 binding points are arranged in the vertical direction, the position 20cm away from the edge in the horizontal direction is a first binding point, and 1 position is bound every 20 cm.
Wherein, the edge part of the cloth-shaped material layer 2 is fixed on the gabion net box 7 through metal wire binding. In this way, the fixing effect of the cloth-like material layer can be improved better.
Wherein, the middle position of the cloth-like material layer 2 is spliced and fixed on the gabion net cage by the piles 8 which are arranged at intervals. Thus, the attaching and fixing effect of the cloth-like material layer and the lower layered structure can be better improved. In practice, the peg 8 is an L-shaped peg, which can better fix the upper cloth-like material layer. In implementation, the piles 8 are arranged in a crisscross manner, so that the fixing effect can be better improved.
Wherein, stake nail 8 lower extreme passes the gabion box with a net and inserts in the side slope. Therefore, the gabion net cages can be further nailed and fixed on the side slope, and the overall structure stabilizing effect is better improved.
Wherein, the side slope is also provided with a water supply pipe 9, and the water supply pipe 9 is provided with a water supply hole.
Thus, water supply maintenance can be better realized, and the water supply pipe can be arranged at the top of the slope or buried below the cloth-shaped material layer during implementation. The water supply pipe may be connected to a municipal water pipe or to a reservoir.
In the implementation, the cloth-like material layer 2, the nutrient material layer 3, the water-retaining material layer 4 and the microalgae layer 3 in the scheme are directly paved on the nutrient soil layer 6 by a slope protection blanket. The above proposal equally discloses a slope protection blanket (see fig. 3), the foundation structure of which comprises a protection blanket body composed of a cloth-like material layer 2, a water-retaining material layer 4 is arranged on the upper surface of the cloth-like material layer 2 in a compounding way, and a microalgae layer 3 is arranged outside the water-retaining material layer 4.
Thus, the cloth-like material layer, the water-retaining material layer and the microalgae layer in the ecological slope protection structure are independently produced, so that the ecological slope protection structure is more convenient to implement and construct. The produced slope protection blanket can be further provided with a nutritional material layer 5 between the water-retaining material layer 4 and the cloth-like material layer 2 as in the ecological slope protection structure scheme. To provide more convenient and sufficient nutrition. Further, plant seeds are buried in the nutrition material layer 5; the side slope protection is better provided after the later-stage plant sprouting.
Claims (9)
1. An ecological slope protection structure comprises a side slope and is characterized in that a cloth-shaped material layer is fixedly covered on the side slope, and a microalgae layer is arranged on the upper surface of the cloth-shaped material layer;
a water-retaining material layer is compositely arranged on the upper surface of the cloth-like material layer, and the microalgae layer is arranged outside the water-retaining material layer;
a layer of nutrition material layer is arranged between the water-retaining material layer and the cloth-shaped material layer.
2. The ecological slope protection structure of claim 1, wherein the cloth-like material layer is woven from degradable fiber material.
3. The ecological slope protection structure of claim 2, wherein the microalgae layer is obtained by using chlorella vulgaris or kriging algae.
4. The ecological slope protection structure of claim 1, wherein a layer of nutrient soil is further disposed below the cloth-like material layer.
5. The ecological slope protection structure of claim 4, wherein plant seeds are also buried in the layer of nutrient material and/or the layer of nutrient soil.
6. The ecological slope protection structure of claim 4, wherein a layer of stone cage is arranged on the upper surface of the side slope, stone blocks are filled in the stone cage, and the nutrient soil layer is arranged on the upper surface of the stone cage.
7. The ecological slope protection structure of claim 6, wherein adjacent gabion cages are bound and connected into a whole;
the edge part of the cloth-shaped material layer is bound and fixed on the gabion net cage through metal wires;
the middle position of the cloth-shaped material layer is spliced and fixed on the gabion net cage by virtue of piles and nails which are arranged at intervals;
the lower ends of the piles are inserted into the side slope through the gabion net cage;
the side slope is also provided with a water supply pipe, and the water supply pipe is provided with a water supply hole.
8. The slope protection blanket comprises a protection blanket body formed by cloth-shaped material layers, and is characterized in that a water-retaining material layer is compositely arranged on the upper surface of the cloth-shaped material layer, and a microalgae layer is arranged outside the water-retaining material layer.
9. A slope protection blanket according to claim 8 wherein a layer of nutritional material is disposed between the layer of water retaining material and the layer of cloth-like material;
plant seeds are buried in the nutritional material layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223086125.XU CN219395680U (en) | 2022-11-21 | 2022-11-21 | Ecological slope protection structure and slope protection blanket |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223086125.XU CN219395680U (en) | 2022-11-21 | 2022-11-21 | Ecological slope protection structure and slope protection blanket |
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| Publication Number | Publication Date |
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| CN219395680U true CN219395680U (en) | 2023-07-25 |
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| CN202223086125.XU Active CN219395680U (en) | 2022-11-21 | 2022-11-21 | Ecological slope protection structure and slope protection blanket |
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