CN215857766U - Construction structure suitable for spout concrete side slope ecological remediation - Google Patents
Construction structure suitable for spout concrete side slope ecological remediation Download PDFInfo
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- CN215857766U CN215857766U CN202120281039.0U CN202120281039U CN215857766U CN 215857766 U CN215857766 U CN 215857766U CN 202120281039 U CN202120281039 U CN 202120281039U CN 215857766 U CN215857766 U CN 215857766U
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- 239000004567 concrete Substances 0.000 title claims abstract description 50
- 238000010276 construction Methods 0.000 title claims abstract description 20
- 238000005067 remediation Methods 0.000 title description 2
- 238000005507 spraying Methods 0.000 claims abstract description 63
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000002689 soil Substances 0.000 claims abstract description 24
- 238000002955 isolation Methods 0.000 claims abstract description 14
- 239000011159 matrix material Substances 0.000 claims abstract description 14
- 238000010899 nucleation Methods 0.000 claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000009792 diffusion process Methods 0.000 claims abstract description 5
- 235000015097 nutrients Nutrition 0.000 claims description 8
- 239000011378 shotcrete Substances 0.000 claims description 4
- 235000016709 nutrition Nutrition 0.000 abstract description 9
- 230000035764 nutrition Effects 0.000 abstract description 9
- 230000008635 plant growth Effects 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 6
- 230000003472 neutralizing effect Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 50
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 description 16
- 239000000843 powder Substances 0.000 description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical group O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 description 12
- 239000002699 waste material Substances 0.000 description 11
- 239000002002 slurry Substances 0.000 description 10
- 241000196324 Embryophyta Species 0.000 description 8
- 239000003337 fertilizer Substances 0.000 description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 6
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 229910052698 phosphorus Inorganic materials 0.000 description 6
- 239000011574 phosphorus Substances 0.000 description 6
- 239000011591 potassium Substances 0.000 description 6
- 229910052700 potassium Inorganic materials 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 239000002344 surface layer Substances 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000002585 base Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 239000004568 cement Substances 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 108010010803 Gelatin Proteins 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000034303 cell budding Effects 0.000 description 2
- 229920000159 gelatin Polymers 0.000 description 2
- 239000008273 gelatin Substances 0.000 description 2
- 235000019322 gelatine Nutrition 0.000 description 2
- 235000011852 gelatine desserts Nutrition 0.000 description 2
- 230000012010 growth Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229910052925 anhydrite Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 229910000389 calcium phosphate Inorganic materials 0.000 description 1
- 235000011010 calcium phosphates Nutrition 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000012343 cottonseed oil Nutrition 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000010903 husk Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910000398 iron phosphate Inorganic materials 0.000 description 1
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004089 microcirculation Effects 0.000 description 1
- 239000003895 organic fertilizer Substances 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Landscapes
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The utility model discloses a construction structure suitable for ecological restoration of a concrete spraying side slope, which comprises a concrete spraying layer, an isolation layer, a galvanized metal net, a nutrition matrix layer, an ecological soil and water protection blanket and a seeding layer, wherein the isolation layer is a material layer which has the functions of neutralizing the alkalinity released by the concrete spraying layer and isolating the alkalinity diffusion of the concrete spraying layer, the isolation layer is tightly attached to the concrete spraying layer, the galvanized metal net is paved and hung on the surface of the isolation layer and fixed by an anchor rod, the nutrition matrix layer is arranged on the upper surface of the galvanized metal net, the ecological soil and water protection blanket is paved and fixed by a U-shaped anchor nail, and the seeding layer is arranged on the ecological soil and water protection blanket and planted with seedlings. The utility model solves the construction problems of the existing foreign soil spray-seeding technology in the vegetation establishment and ecological restoration of the concrete spraying slope, and can effectively inhibit the influence of the alkaline release of the concrete spraying layer on the growth of plants.
Description
Technical Field
The utility model relates to the technical field of side slope ecological restoration, in particular to a construction structure suitable for concrete spraying side slope ecological restoration.
Background
Because of the safety protection requirement of construction projects such as water conservancy and hydropower, the damaged side slope is protected in a concrete anchor spraying mode to form a sprayed concrete slope. Although the physical protection mode can prevent secondary disasters such as instability, collapse, broken stone sliding, debris flow and the like of a slope body, the physical protection mode also makes vegetation recovery of a damaged slope surface of a project more difficult, and is a typical difficult field type. Under the condition of the land, the plant growth is limited, the ecological restoration is difficult, and a series of ecological environment problems are brought. The concrete points are as follows: (1) the biological chain is cut off, and the ground gas and water and fertilizer micro-circulation system of the original side slope is isolated; (2) the cement used by the concrete releases alkalinity when meeting water, so that the influence of the alkalinity on the growth of plants needs to be isolated or blocked when the slope is subjected to ecological restoration; (3) the sprayed concrete slope is smooth, which is not beneficial to the fixation and adhesion of the plant growth base material during ecological restoration operation, and the base material is particularly easy to slide; (4) the long-term exposure of the gray slope brings visual pollution to people. Therefore, on the basis of the original concrete anchor spraying protection, it is necessary to develop a method for recovering vegetation and reconstructing ecological landscape on a concrete spraying slope surface so as to strengthen the ecological protection effect.
The alien soil spray-seeding technology is one of the most common construction technologies in the current ecological vegetation restoration engineering, and has good application effect on damaged bare slopes with serious rock surface fragmentation and crack development. But is difficult to be directly used for vegetation establishment and ecological restoration of the concrete spraying side slope, on one hand, the slope surface of the concrete spraying side slope is smooth, the spraying base material is difficult to be stably attached to the slope surface, the anti-scouring capability is low, and the water and soil loss of the slope surface is serious under the rainfall condition; on the other hand, the sprayed concrete slope surface becomes alkaline, which affects the pH value of the sprayed base material and is not beneficial to plant growth, thus resulting in low plant survival rate and high later-stage maintenance cost.
Aiming at the problems, the utility model provides a construction structure suitable for ecological restoration of a concrete spraying side slope, which aims to solve the construction problems of the existing foreign soil spraying technology in the vegetation establishment and ecological restoration of the concrete spraying side slope and can effectively inhibit the influence of alkaline release of a concrete spraying layer on the growth of plants. The method has the advantages of simple construction process, obvious vegetation recovery effect, convenient later maintenance and the like, and has good popularization and application prospects.
Disclosure of Invention
The utility model provides a construction structure suitable for ecological restoration of a concrete spraying slope, which aims to solve the construction problems of planting and ecological restoration of the concrete spraying slope vegetation in the existing foreign soil spraying and seeding technology.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a construction structure suitable for ecological restoration of a concrete spraying side slope comprises a concrete spraying layer, an isolation layer, a galvanized metal net, a nutrition matrix layer, an ecological water and soil protection blanket and a seeding layer, wherein the concrete spraying layer is a bare slope surface reserved for protection of a spray anchor project, the isolation layer is a material layer which neutralizes alkalinity released by the concrete spraying layer and isolates alkalinity diffusion of the concrete spraying layer, the concrete spraying layer is tightly attached to the concrete spraying layer, the galvanized metal net is paved and fixed by an anchor rod on the surface of the isolation layer, the nutrition matrix layer is arranged on the upper surface of the galvanized metal net, the ecological water and soil protection blanket is paved and fixed by a U-shaped anchor nail on the upper surface of the nutrition matrix layer, and the seeding layer is arranged on the upper surface of the ecological water and soil protection blanket and seedlings are planted.
Furthermore, the isolation layer is divided into a bottom layer and a surface layer, the bottom layer is formed by spraying the waste phosphogypsum powder after being stirred into slurry by adding water, and the surface layer is formed by spraying the waste phosphogypsum powder and the furfural residue powder after being uniformly mixed and stirred into slurry by adding water.
Furthermore, the nutrient matrix layer is formed by uniformly mixing the soil, the organic materials, the compound fertilizer with 15 percent of nitrogen, phosphorus and potassium content and the low-alkali cement according to a certain proportion, adding water, stirring into slurry and spraying.
Further, the spraying seeding layer is formed by uniformly mixing screened planting soil, paper pulp, gelatin powder and a compound fertilizer with 15% of nitrogen, phosphorus and potassium content according to a certain proportion, adding plant seeds and water, stirring into slurry and spraying.
After the construction structure is formed, the non-woven fabric is covered, watering and fertilizing are carried out regularly, the budding condition and the growth vigor of the plant are observed, and necessary replanting and replanting are carried out.
The beneficial effects or the action principle of doing so are stated as follows:
the isolating layer is arranged for physically blocking OH showing alkalinity in the concrete spraying layer-Outward release and diffusion pathways, with simultaneous OH reduction by neutralization-The content of (a). In order to achieve the purpose, the utility model adds water into waste phosphogypsum powder, stirs the waste phosphogypsum powder into slurry, sprays a bottom layer, mixes the waste phosphogypsum powder and furfural residue powder, adds water, stirs the waste phosphogypsum powder and furfural residue powder into slurry, and sprays a surface layer.
Phosphogypsum is a solid waste generated in the production of wet-process phosphoric acid, and has the main component CaSO4·2H2And O, a small amount of undecomposed impurities such as iron phosphate, aluminum phosphate and fluosilicate, a large amount of nutrient elements necessary for plants such as sulfur and calcium, and a certain amount of free acid, wherein the pH value is 3-4.
The utility model is beneficialThe waste phosphogypsum has the beneficial effects that: (1) the phosphogypsum has extremely strong hydrophilicity, can increase the strength of the phosphogypsum after reacting with water to form a firm phosphogypsum layer, thereby playing a good role in physical barrier and reinforcing the slope. (2) The waste phosphogypsum free acid can neutralize OH released from the concrete spraying layer (1)-The function of (1). (3) The phosphogypsum contains a small amount of sulfur and calcium which are necessary nutrient elements for plants and can play a role in applying sulfur fertilizer and calcium fertilizer to the plants.
The furfural residue used in the utility model is solid waste generated in the industrial production of furfural, is the residue left after biomass substances such as corncobs, cornstalks, rice husks, cottonseed hulls and agricultural and sideline products are crushed and added with sulfuric acid or calcium phosphate and the like to perform a series of hydrolysis chemical reactions under the action of certain temperature and pressure to extract furfural, is rich in quick-acting phosphorus, quick-acting potassium, quick-acting nitrogen, organic matters and a small amount of sulfuric acid, and is a high-quality organic fertilizer raw material. The furfural residue adopted by the utility model is as follows: (1) can fully utilize residual free acid of furfural residue to neutralize OH released from concrete spraying layer-Acting together with the used waste phosphogypsum to synergistically obstruct and absorb OH-. (2) Organic matters, nitrogen, phosphorus, potassium and trace elements rich in the furfural residues can be fully utilized to provide necessary nutrient components for plant growth.
The utility model provides a construction structure suitable for ecological restoration of a concrete spraying side slope, solves the construction problems of vegetation establishment and ecological restoration of the concrete spraying side slope in the existing foreign soil spraying technology, and can effectively inhibit the influence of alkaline release of a concrete spraying layer on plant growth.
Drawings
The utility model is explained in more detail below with reference to the drawings.
FIG. 1 is a schematic of the present invention, wherein: 1 is a concrete spraying layer, 2 is an isolation layer, 3 is a galvanized metal net, 4 is an anchor rod, 5 is a U-shaped anchor bolt, 6 is a nutrition matrix layer, 7 is an ecological water and soil protection blanket, 8 is a spraying seeding layer, and 9 is a seedling.
Detailed Description
The utility model is further illustrated below with reference to the figures and examples.
The utility model is tested on the concrete spraying side slope of large hydropower engineering in certain places in Sichuan for the first time, and the test construction area is 600m2The implementation is in a hot and dry valley microclimate.
A construction structure suitable for ecological restoration of a concrete spraying side slope is constructed and comprises a concrete spraying layer, an isolation layer, a galvanized metal net, a nutrition matrix layer, an ecological water and soil protection blanket and a seeding layer, wherein the concrete spraying layer is a bare slope surface reserved for protection of a spray anchor project, the isolation layer is a material layer which has the alkalinity released by neutralizing the concrete spraying layer and isolates the alkalinity diffusion of the concrete spraying layer, the concrete spraying layer is tightly attached to the concrete spraying layer, the galvanized metal net is paved and fixed by an anchor rod on the surface of the isolation layer, the nutrition matrix layer is arranged on the upper surface of the galvanized metal net, the ecological water and soil protection blanket is paved and fixed by a U-shaped anchor nail on the upper surface of the nutrition matrix layer, and the seeding layer is arranged on the upper surface of the ecological water and soil protection blanket and seedlings are planted.
Furthermore, the isolation layer is divided into a bottom layer and a surface layer, the bottom layer is formed by spraying the waste phosphogypsum powder after being stirred into slurry by adding water, and the surface layer is formed by spraying the waste phosphogypsum powder and the furfural residue powder after being uniformly mixed and stirred into slurry by adding water.
Furthermore, the nutrient matrix layer is formed by uniformly mixing the soil, the organic materials, the compound fertilizer with 15 percent of nitrogen, phosphorus and potassium content and the low-alkali cement according to a certain proportion, adding water, stirring into slurry and spraying.
Further, the spraying seeding layer is formed by uniformly mixing screened planting soil, paper pulp, gelatin powder and a compound fertilizer with 15% of nitrogen, phosphorus and potassium content according to a certain proportion, adding plant seeds and water, stirring into slurry and spraying.
After the construction structure is formed, non-woven fabrics are covered, watering and fertilizing are carried out regularly, the budding condition and the growth vigor of plants are observed, and necessary replanting and replanting are carried out.
The ecological restoration test of the concrete spraying side slope achieves that the slope is green in 30 days, the vegetation coverage rate is 60% in 90 days, the coverage rate is more than 90% in half a year, the slope is fully covered in one year, and the ecological restoration, water and soil conservation and landscape reconstruction effects are good.
Claims (1)
1. A construction structure suitable for ecological restoration of a concrete spraying side slope comprises a concrete spraying layer (1), an isolation layer (2), a galvanized metal net (3), a nutrient matrix layer (6), an ecological water and soil protection blanket (7) and a spraying seeding layer (8), it is characterized in that the concrete spraying layer (1) is a bare slope surface left by the protection of the shotcrete project, the isolating layer (2) is a material layer which neutralizes the alkalinity released by the concrete spraying layer and isolates the alkalinity diffusion, and is tightly attached to the concrete spraying layer (1), a galvanized metal net (3) is paved and hung on the surface of the isolating layer (2) and fixed by an anchor rod (4), a nutrient matrix layer (6) is arranged on the galvanized metal net (3), an ecological water and soil protection blanket (7) is laid on the nutrient matrix layer (6) and fixed by a U-shaped anchor (5), a spraying seeding layer (8) is arranged on the ecological water and soil protection blanket (7) and seedlings (9) are planted.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202120281039.0U CN215857766U (en) | 2021-02-01 | 2021-02-01 | Construction structure suitable for spout concrete side slope ecological remediation |
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CN202120281039.0U CN215857766U (en) | 2021-02-01 | 2021-02-01 | Construction structure suitable for spout concrete side slope ecological remediation |
Publications (1)
Publication Number | Publication Date |
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CN215857766U true CN215857766U (en) | 2022-02-18 |
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CN202120281039.0U Active CN215857766U (en) | 2021-02-01 | 2021-02-01 | Construction structure suitable for spout concrete side slope ecological remediation |
Country Status (1)
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CN (1) | CN215857766U (en) |
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2021
- 2021-02-01 CN CN202120281039.0U patent/CN215857766U/en active Active
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EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningbo ruicui Biotechnology Co.,Ltd. Assignor: SHENZHEN MASTER ECOLOGICAL ENVIRONMENT Co.,Ltd. Contract record no.: X2023980049258 Denomination of utility model: A construction structure suitable for ecological restoration of shotcrete slopes Granted publication date: 20220218 License type: Common License Record date: 20231130 |