CN210275363U - Ecological protection system of bank falling zone - Google Patents
Ecological protection system of bank falling zone Download PDFInfo
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- CN210275363U CN210275363U CN201921245453.5U CN201921245453U CN210275363U CN 210275363 U CN210275363 U CN 210275363U CN 201921245453 U CN201921245453 U CN 201921245453U CN 210275363 U CN210275363 U CN 210275363U
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Abstract
The utility model discloses a bank hydro-fluctuation belt ecological protection system, along the domatic by interior polypropylene soil layer of the seed matrix layer, the anti-filter bed of filament geotechnological cloth, the three-dimensional structure net that sets gradually outside to of bank, and seed matrix layer, the anti-filter bed of filament geotechnological cloth, the solid soil layer of polypropylene pass through anchoring mechanism and fix on the bank is domatic. The seed matrix layer, the filament geotextile reverse filter layer and the polypropylene soil fixation layer are fixed on the slope surface of the bank through the anchoring mechanism, so that the effects of erosion resistance, wave erosion resistance, soil fixation and sand preservation are achieved; the structure is simple, the operability is strong, the compatibility is better, and the materials are convenient to obtain; the system does not need to consider artificial planting, fully utilizes the self-recovery capability of the ecological system, and has a sustainable positive effect on recovering the ecological environment of the hydro-fluctuation belt of the reservoir bank.
Description
Technical Field
The utility model belongs to the technical field of ecological environment protection, concretely relates to ecological protection system for reservoir bank hydro-fluctuation belt.
Background
Since the three gorges project operates, the reservoir water level is changed alternately between 145m and 175m, and due to overlarge water level fluctuation amplitude, geological disasters occur frequently in a fluctuation zone, the reservoir bank pollution situation is severe, and the biodiversity and the ecological damage are serious.
For many years, the treatment of the hydro-fluctuation belt of the reservoir bank mostly adopts a hard facing form, such as a concrete facing, a hexagonal block-shaped slope protection, a gabion slope protection and the like, so as to protect the reservoir bank from erosion. In recent years, with the development of ecological protection concepts, ecological bag revetments, grass planting brick revetments, and the like have been developed in succession. In conclusion, the hard protective surface can not meet the ecological protection requirement, and the existing ecological protection effect is not ideal. Therefore, a novel ecological protection system for the hydro-fluctuation belt of the bank needs to be developed to solve the problem of ecological protection of the bank.
SUMMERY OF THE UTILITY MODEL
The utility model discloses plan from soil stabilization and protect the aspect of sand and start, keep the ecological repair ability of oneself of bank, solve the bank hydro-fluctuation belt ecological protection difficult problem.
Therefore, the utility model discloses the technical scheme who adopts does: the ecological protection system for the hydro-fluctuation belt of the bank comprises a seed matrix layer, a filament geotextile reversed filter layer and a polypropylene soil fixing layer of a three-dimensional structure net which are sequentially arranged along the slope surface of the bank from inside to outside, wherein the seed matrix layer, the filament geotextile reversed filter layer and the polypropylene soil fixing layer are fixed on the slope surface of the bank through an anchoring mechanism.
Preferably, the soil reservoir bank hydro-fluctuation belt with the slippery surface layer is fixed by using a wooden wedge, a steel nail or a spiral nail penetrating through the potential rupture layer as an anchoring mechanism, and the reservoir bank hydro-fluctuation belt needing engineering support is fixed by using an anchor rod or an anchor cable penetrating through the potential rupture layer as an anchoring mechanism.
Preferably, the thickness of the seed matrix layer is 2-3cm, the thickness of the filament geotextile reverse filter layer is 1-2cm, and the thickness of the polypropylene soil fixation layer is 1-2 cm.
Preferably, the polypropylene soil-fixing layer is a plurality of continuous three-dimensional pyramid structure nets, at least one grid is arranged on the side surface and the bottom surface of each pyramid, and the bottom surfaces of all the pyramids are coplanar.
Preferably, the seed matrix layer is a mixture of fermented or carbonized agricultural and forestry waste, light mineral substances and water-resistant and easily active plant seeds.
More preferably, the agricultural and forestry waste comprises straw, rice hulls, mixed leaves, weeds and mixed trees; the light mineral substances comprise peat, perlite and vermiculite; the water-resistant and easily-active plant seeds are bermudagrass.
The utility model has the advantages that: the seed matrix layer, the filament geotextile reverse filter layer and the polypropylene soil fixation layer are fixed on the slope surface of the bank through the anchoring mechanism, so that the effects of erosion resistance, wave erosion resistance, soil fixation and sand preservation are achieved; the structure is simple, the operability is strong, the compatibility is better, and the materials are convenient to obtain; the system does not need to consider artificial planting, fully utilizes the self-recovery capability of the ecological system, and has a sustainable positive effect on recovering the ecological environment of the hydro-fluctuation belt of the reservoir bank.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The invention will be further described by way of examples with reference to the accompanying drawings:
as shown in fig. 1, the ecological protection system for the hydro-fluctuation belt of the reservoir mainly comprises a seed matrix layer 2, a filament geotextile reverse filter layer 3, a polypropylene soil fixing layer 4 and an anchoring mechanism 5.
The thickness of the seed matrix layer 2 is typically 2-3 cm; preferably, the seed matrix layer 2 is a mixture of fermented or carbonized agricultural and forestry waste, light mineral substances and water-resistant and easily activated plant seeds. The seed matrix layer 2 is a commonly used ecological protection layer. The agricultural and forestry waste comprises straw, rice hulls, miscellaneous leaves, weeds and miscellaneous trees; the light mineral comprises peat, perlite and vermiculite; the water-resistant and easily active plant seed is Bermuda grass. The seed matrix layer 2 mainly provides necessary nutrients for the growth of plants and the spread of root systems.
The thickness of the filament geotextile reversed filter layer 3 is usually 1-2 cm; the filament geotextile is used as a reverse filter layer material, the paving thickness of the filament geotextile is 1-2cm, and the filament geotextile can play a role in soil fixation and sand preservation and has a drainage function at the same time based on the characteristic of larger pores of the filament geotextile. By utilizing the water absorption effect of the geotextile, after the bank is dewatered, the slope surface can keep a humid condition for a certain time, which is beneficial to vegetation regeneration; meanwhile, by utilizing the capillary action of the geotextile, the water content level inside the inverted filter layer is slightly higher than the reservoir water level, so that necessary moisture conditions can be provided for the rapid regeneration of vegetation after the reservoir water is reduced.
The stereo structure net made of polypropylene is used as a soil fixing layer, and the thickness of the polypropylene soil fixing layer 4 is usually 1-2 cm. Preferably, the polypropylene soil layer 4 is a plurality of continuous three-dimensional pyramid structural meshes, at least one grid is arranged on the side surface and the bottom surface of each pyramid, and the bottom surfaces of all the pyramids are coplanar. The polypropylene material has the advantages of light weight, no toxicity, corrosion resistance, tensile resistance, impact resistance and the like. In the water fluctuation process of the reservoir, the silt particles in the water can be adsorbed in the grids in a large amount to form a stable silt layer, which is beneficial to the reconstruction and recovery of vegetation.
The seed matrix layer 2, the filament geotextile reversed filter layer 3 and the polypropylene soil fixation layer 4 are sequentially arranged along the bank slope surface 1 from inside to outside and are fixed on the bank slope surface 1 through the anchoring mechanism 5.
For the soil reservoir bank hydro-fluctuation belt with slippery surface layer, a wood wedge, a steel bar nail or a spiral nail penetrating through the potential rupture layer is adopted as the anchoring mechanism 5 for fixing, and for the reservoir bank hydro-fluctuation belt needing engineering support, an anchor rod or an anchor cable penetrating through the potential rupture layer is adopted as the anchoring mechanism 5 for fixing. The anchoring mechanism 5 penetrates through the potential cracking layer to reach a certain depth, and the anchoring depth and the anchoring mechanism are selected according to the stability condition of the reservoir bank and meet the stress condition through professional calculation.
Claims (6)
1. The utility model provides a bank hydro-fluctuation belt ecological protection system which characterized in that: the soil stabilization layer comprises a seed matrix layer (2), a filament geotextile reverse filter layer (3) and a polypropylene soil stabilization layer (4) of a three-dimensional structure net, which are sequentially arranged from inside to outside along the bank slope surface (1), wherein the seed matrix layer (2), the filament geotextile reverse filter layer (3) and the polypropylene soil stabilization layer (4) are fixed on the bank slope surface (1) through an anchoring mechanism (5).
2. The ecological protection system of the bank hydro-fluctuation belt of claim 1, wherein: for the soil reservoir bank hydro-fluctuation belt with slippery surface layer, a wood wedge, a steel bar nail or a spiral nail penetrating through the potential rupture layer is adopted as an anchoring mechanism (5) for fixing, and for the reservoir bank hydro-fluctuation belt needing engineering support, an anchor rod or an anchor cable penetrating through the potential rupture layer is adopted as the anchoring mechanism (5) for fixing.
3. The ecological protection system of the bank hydro-fluctuation belt of claim 1, wherein: the thickness of the seed matrix layer (2) is 2-3cm, the thickness of the filament geotextile reversed filter layer (3) is 1-2cm, and the thickness of the polypropylene soil fixation layer (4) is 1-2 cm.
4. The ecological protection system for the bank hydro-fluctuation belt according to claim 1 or 2, wherein: the polypropylene soil-fixing layer (4) is a plurality of continuous three-dimensional pyramid structure nets, at least one grid is arranged on the side surface and the bottom surface of each pyramid, and the bottom surfaces of all the pyramids are coplanar.
5. The ecological protection system for the bank hydro-fluctuation belt according to claim 1 or 2, wherein: the seed matrix layer (2) is a mixture of fermented or carbonized agricultural and forestry waste, light mineral substances and water-resistant and easily activated plant seeds.
6. The ecological protection system of the bank hydro-fluctuation belt of claim 5, wherein: the agricultural and forestry waste comprises straw, rice hulls, mixed leaves, weeds and mixed trees; the light mineral substances comprise peat, perlite and vermiculite; the water-resistant and easily-active plant seeds are bermudagrass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921245453.5U CN210275363U (en) | 2019-08-02 | 2019-08-02 | Ecological protection system of bank falling zone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921245453.5U CN210275363U (en) | 2019-08-02 | 2019-08-02 | Ecological protection system of bank falling zone |
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| CN210275363U true CN210275363U (en) | 2020-04-10 |
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| CN201921245453.5U Active CN210275363U (en) | 2019-08-02 | 2019-08-02 | Ecological protection system of bank falling zone |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111809565A (en) * | 2020-06-18 | 2020-10-23 | 上海河道建设有限公司 | Ecological bank protection of hydraulic engineering |
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2019
- 2019-08-02 CN CN201921245453.5U patent/CN210275363U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111809565A (en) * | 2020-06-18 | 2020-10-23 | 上海河道建设有限公司 | Ecological bank protection of hydraulic engineering |
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