CN219773002U - Honeycomb system for ecological restoration of smooth and flat high-steep side slope - Google Patents
Honeycomb system for ecological restoration of smooth and flat high-steep side slope Download PDFInfo
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- CN219773002U CN219773002U CN202320860133.0U CN202320860133U CN219773002U CN 219773002 U CN219773002 U CN 219773002U CN 202320860133 U CN202320860133 U CN 202320860133U CN 219773002 U CN219773002 U CN 219773002U
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- geocell
- anchor rod
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- main anchor
- ecological restoration
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- -1 polypropylene Polymers 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 17
- 239000002689 soil Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 8
- 230000002787 reinforcement Effects 0.000 abstract description 4
- 239000002585 base Substances 0.000 description 14
- 241000196324 Embryophyta Species 0.000 description 7
- 238000009434 installation Methods 0.000 description 7
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- 229920001778 nylon Polymers 0.000 description 3
- 230000008635 plant growth Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 2
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Landscapes
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The utility model discloses a honeycomb system for ecological restoration of a smooth and flat high-steep side slope, which is characterized in that: the system consists of a main anchor rod, a geocell, auxiliary anchors, supporting ribs and a geogrid; the main anchor rod and the auxiliary anchor rod fix the geocell on the high steep slope, the geocell is pressed on the geocell, and the supporting rib is pressed on the geocell. The utility model has the following advantages: the honeycomb system can be used as a container of the plant-growing base material, so that the filling thickness of the plant-growing base material is ensured; the vertical surface reinforcement effect and the strong lateral limitation of the geocell ensure that the plant-growing base material cannot fall off in a large area; the full coverage of the soil on the high and steep side slope can be realized, the 'stubble' surface is not exposed, and the ecological restoration effect of the side slope is attractive.
Description
Technical Field
The utility model relates to the technical field of ecological restoration of smooth and flat high-steep slopes, in particular to a honeycomb system for ecological restoration of smooth and flat high-steep slopes.
Background
The bedding side slope is a common high-steep side slope type, once the side slope is cut and excavated, if a developed weak structural surface (a layer surface, a fault and a crack) exists in a rock stratum, under the inducement of earthquake, rainfall and the like, the bedding side slope can often occur, and even the bedding side slope can topple over for the high-steep rock side slope with bedding development and gradient of more than 45 degrees. After the rock mass is on a smooth landslide or topples down along the weak structural surface, a 'light plate' slope surface with steep slope, smooth and flat slope surface, good integrity and low weathering degree is formed.
The current used comparatively more mature smooth and flat ecological restoration technology for high-steep slopes mainly comprises a net hanging spray sowing technology, including planting water soil spray sowing, thick-layer base material spray sowing, high-order granule spray sowing and the like. The net hanging and spray seeding technology mainly relies on the viscosity of plant-growing base materials, and is adhered to slope and grid net. When the plant substrate is used for smooth and flat slope surfaces, the viscosity of the plant substrate is easy to lose or degrade due to the small friction coefficient of the slope surfaces, soft soil water absorption, temperature deformation and the like, so that the plant substrate falls off in a large area.
Engineering practice proves that the ecological restoration of smooth and even high-steep side slopes has obvious defects in the prior art, and a new technical scheme is needed.
Disclosure of Invention
The utility model provides a honeycomb system for ecological restoration of smooth and flat high-steep slopes, which aims at: and fixing the geocell and the geogrid on the smooth and flat steep slope by using main anchors, auxiliary anchors and supporting ribs to form a honeycomb-like structural system. Then, the plant-growing base material is sprayed in the device by using a spray-seeding machine, the strong lateral limit performance of the honeycomb structure is utilized as a container for accommodating the plant-growing base material, the plant-growing base material of the whole slope is divided into a plurality of small cells, and meanwhile, the plant-growing base material is subjected to the function of structural reinforcement, so that the stability of the plant-growing base material is greatly improved, the occurrence of large-area falling is avoided, and the ecological restoration is carried out on a smooth and smooth high-steep slope.
In order to achieve the above object, the present utility model provides a honeycomb system for ecological restoration of a smooth and flat high steep slope, which is realized by:
(1) Beating the top main anchor rod: and driving a main anchor rod at each vertex angle position of the uppermost row of grids of the geocell as a positioning anchor rod according to the fully opened and determined size of the single-group geocell. The main anchor rod 1 is made of a twisted steel bar, and a 90-degree hook is added at the end part. The straight section length L of the main anchor rod 1 comprises an anchoring depth L2 and an exposed length L1, wherein the exposed length L1 is not smaller than the height of the geocell 2, the thickness of the geogrid 6, the diameter of the transverse supporting ribs 4 and the diameter of the main anchor rod 1. The exposed part of the main anchor rod 1 is painted with yellow antirust paint;
(2) Installing a geocell: the geocell is installed from the top angle of the whole slope, the top edge of the geocell is hung on the main anchor rod, and attention must be paid to enable the main anchor rod to be positioned at a position of the top angle in the middle of a welding distance, so that the geocell can be opened smoothly, distortion is avoided, and tensile force is transmitted to the anchor rod. The geocell 2 is a three-dimensional netlike cell structure formed by welding or riveting high-strength polyethylene or polypropylene copolymer broadband through an ultrasonic welding technology, and has the following characteristics: stable chemical property, photo-oxidation aging resistance and acid and alkali resistance; higher lateral limit and anti-skid and anti-deformation capability; the expansion and the contraction are free, and the transportation volume is small; the connection is convenient and the construction speed is high. The geocell 2 is fixed on the side slope by a main anchor rod 1 and an auxiliary anchor nail;
(3) Beating auxiliary anchor nails: and tensioning the geocell from top to bottom after tensioning and fixing the top row of grids. And (3) auxiliary anchors are arranged at every other vertex angle in the middle area grid of the single-group geocell, so that the auxiliary anchors are not arranged at the positions where the main anchors are arranged. The outermost grid side angle of the whole slope is fixed on the slope by auxiliary anchors. The auxiliary anchor nail 3 is made of smooth round steel bars, and 180-degree hooks are added at the end parts. The straight length L of the auxiliary anchor 3 comprises an anchoring depth L2 and an exposed length L1, wherein the exposed length L1 is not smaller than the height of the membrane of the geocell 2. The straight section length of the hook is 2-3 cm smaller than the height of the membrane of the geocell 2. Brushing antirust paint on the exposed part of the auxiliary anchor nail 3;
(4) Installing other geocells: the other geocells are arranged in a row in a top-to-bottom sequence, and are arranged in an aligned mode, the installation method is the same as that of the first group of geocells, and two groups of adjacent geocells are connected together through matched connectors. Auxiliary anchors are made at each vertex angle part of the grid of the lowest row of the whole slope surface for fixation;
(5) Installing a middle main anchor rod: after the geocell is fixed by using auxiliary anchors, the main anchor rod in the middle of the geocell is installed by aligning the top positioning anchor rod, the main anchor rod is positioned at the top angle of the grid in the middle of the geocell, and is arranged in an aligned manner up, down, left and right, 4 grids are vertically spaced, and 3 grids are transversely spaced;
(6) Binding a geogrid: the geogrid 6 is made of bidirectional polypropylene. The geogrid has the characteristics of high strength, small creep, corrosion resistance, aging resistance, long service life and the like. The device is suitable for various environmental soils, can effectively improve the interlocking and engagement functions of the reinforced bearing surface, effectively restrict the lateral displacement of the soil body and enhance the stability of the soil body. The geogrid 6 is pressed on the geogrid chamber, and is sleeved on the hook at the position of the main anchor rod 1;
(7) Binding supporting ribs: the supporting ribs are arranged along the horizontal and vertical directions of the slope, the horizontal supporting ribs are positioned on the inner side of the hook of the main anchor rod, and the crossing points of the horizontal and vertical supporting ribs are positioned on the main anchor rod. The supporting ribs are fastened with the main anchor rods and the geogrid by nylon ties, the interval between the binding points is not more than 300mm, the deformation of the honeycomb system is reduced, the stability and the integrity of the honeycomb system are improved, and the stress of the honeycomb system is more reasonable. The supporting ribs are made of screw-thread steel bars. The supporting ribs are arranged transversely and vertically along the slope surface and pressed on the geogrid, the crossing points are located on the main anchor rods 1, the transverse supporting ribs 4 are located on the inner sides of hooks of the main anchor rods 1, and the vertical supporting ribs 5 are located on the outer sides of the transverse supporting ribs 4.
The honeycomb system composed of the main anchor rod, the auxiliary anchor rod, the geocell, the geogrid and the supporting ribs is adopted, so that the following beneficial effects can be obtained:
(1) The honeycomb system divides the whole slope into a plurality of small cells by utilizing the reinforcement effect of the vertical face and the overall lateral limitation of the geocell, the overturning and sliding force of soil mass in each cell is greatly reduced, and the soil fixing effect is good;
(2) The honeycomb system can be used as a "container" for the plant substrate to ensure the filling thickness of the plant substrate;
(3) The honeycomb system can slow down the flow rate, disperse water flow and reduce the energy of the water flow, thereby reducing the erosion effect of the water flow on the slope soil body;
(4) The side wall of the honeycomb system can be perforated, which is favorable for drainage and growth of plant roots.
Drawings
The present utility model is described in further detail below with reference to the accompanying drawings.
FIG. 1 is a schematic representation of the main anchor of the present utility model.
Fig. 2 is a view of the auxiliary anchor of the present utility model.
Figure 3 is a geocell installation diagram of the present utility model.
Fig. 4 is a geogrid installation diagram of the present utility model.
Fig. 5 is a diagram showing the effect of the honeycomb system of the present utility model after installation.
List of specific part names in the drawings: 1: a main anchor rod; 2: geocell; 3: auxiliary anchors; 4: transverse supporting ribs; 5: vertical supporting ribs; 6: geogrid.
Detailed Description
The utility model will now be described in an example of an application of the utility model for ecological restoration, but is not intended to limit the scope of the utility model. Based on the embodiments of the present utility model, those skilled in the art may make various modifications and improvements to the technical solution provided by the present utility model without departing from the design spirit and essential characteristics of the present utility model, which fall within the protection scope defined by the claims of the present utility model.
The thickness of the plant substrate in this example is 12cm, including 10cm for the spray-seeding base layer and 2cm for the seed surface layer, which is located outside the geogrid.
The construction process flow of the utility model comprises the following sequential steps:
(1) Slope cleaning: the dangerous rock and pumice on the slope are removed, the arrangement is smooth, the potential safety hazard that falling rocks hurt people is eliminated, and the construction safety of workers on high and steep slopes is ensured;
(2) Manufacturing a main anchor rod: the main anchor rod 1 is made of reinforced steel bars with the diameter of HRB400 and 16mm, the blanking length is 650mm, the anchor-in side slope is 420mm, the length of the exposed straight section part is 140mm, and the length of the 90-degree hook is 90mm; brushing antirust paint on the exposed part of the main anchor rod twice;
(3) Manufacturing auxiliary anchors: the auxiliary anchor nail 3 is made of HPB300 steel bars with the diameter of 8mm, the blanking length is 380mm, the anchor is anchored into a side slope by 150mm, the exposed straight section part is 100mm long, and the straight section of a 180-degree hook is 80mm long; brushing antirust paint on the exposed part of the auxiliary anchor nail twice;
(3) Geocell: the geocell 2 is made of HDPE material, the height of the membrane is 100mm, the welding distance is 600mm, and the single hole area of the geocell is 0.09m 2 The method comprises the steps of carrying out a first treatment on the surface of the The tensile strength of the sheet is more than or equal to 20MPa, and the tensile strength of a welded part is more than or equal to 100N/CM; after the geocell is unfolded, the width is 4600mm and the length is 6300mm; the sheet needs to be perforated to meet the drainage requirement, so that the growth of plant roots is facilitated;
(4) Installing the uppermost row of main anchors: punching holes perpendicular to the slope surface at the position of the slope top, wherein the diameter is 32mm, the hole distance is 420mm, and the hole depth is 450mm; the hole is filled with plain cement paste, and the hook is inserted into the main anchor rod 1 upwards until the painting position;
(5) Installing a first set of geocells: the first set of geocells is located at the corner of the slope. For convenient installation, a row of grids at the top edge of the geotechnical cells 2 which are folded together are firstly released, and other parts are bound by ropes. Firstly, the top edge of the geocell 2 is hung on a main anchor rod, and attention must be paid to enable the main anchor rod 1 to be positioned at a position of a welding distance middle top angle so as to ensure that the geocell can be smoothly opened. All grid side angles of the outermost column of the whole slope are fixed on the slope by auxiliary anchors 3. After the tensioning and fixing of the grid at the top are completed, the binding of the whole group of geocells is loosened, and the tensioning of the geocells 2 is carried out from top to bottom. The auxiliary anchor nails are fixed 3 at every other vertex angle position of the regional grids in the middle part of the single-group geocell 2, and the main anchor rod positions are required to be emptied at the auxiliary anchor nail beating positions;
(6) Installing other geocells: the other geocells are arranged in a row in a top-to-bottom sequence, and are arranged in an aligned mode, the installation method is the same as that of the first group of geocells, and two groups of adjacent geocells are connected together through matched connectors. After the installation of the geocell of the whole slope is completed, each vertex angle part of the lowest row of grids is fixed by beating auxiliary anchors;
(7) Installing other main anchor rods: after the tensioning and fixing of the geocell are completed, other main anchor rods 1 are installed in the geocell by aligning the uppermost row of main anchor rods 1, the main anchor rods 1 are positioned at grid vertex angles, are vertically spaced by 4 grids, and are horizontally spaced by 3 grids;
(8) Installing a geogrid: in order to further improve the stability of the earth covered in the earthwork grid chamber 2, prevent the earth from overturning and improve the erosion resistance of the earth, the earthwork grid 6 is covered on the surface of the earthwork grid chamber 2 after the earthwork grid chamber 2 is installed. The geogrid is sleeved on the hook of the main anchor rod and is fastened with the anchor rod by a nylon binding belt;
(9) And (3) installing supporting ribs: the supporting ribs are HRB400 phi 12mm, and the steel bar supporting ribs are arranged along the slope in the transverse and vertical directions. The transverse supporting ribs 4 are positioned on the inner side of the main anchor rod hook, the vertical supporting ribs 5 are positioned on the outer side of the transverse supporting ribs, and the cross points of the transverse supporting ribs and the vertical supporting ribs are positioned on the main anchor rod. The transverse and vertical supporting ribs, the main anchor rods and the geogrid are fastened by nylon ties, the interval between the tie points is not more than 300mm, the deformation of the honeycomb system is reduced, the stability and the integrity of the honeycomb system are improved, and the stress of the honeycomb system is more reasonable;
(10) After the honeycomb structure is installed, spraying the plant-growing base material which is stirred in advance into the honeycomb cells in a dry spraying mode by using a spraying and seeding machine. The plant-growing base material is sprayed and filled twice, and the part without the seed layer is sprayed and filled firstly to the height of the geocell membrane; spraying and filling a surface layer containing a seed layer, covering an earthwork grille 6, and ensuring the thickness to be about 2cm;
(11) Installing an irrigation system: the irrigation system is a micro-spray irrigation system.
Smooth and flat bedding slopes exist in large numbers in high and steep slopes, and ecological restoration is always a difficult problem on the smooth and flat bedding slopes due to severe plant growth environmental conditions of the slopes. Because the slope is high steep, smooth and flat and has small friction coefficient, the ecological restoration technology of the smooth and flat high steep slope which is commonly used at present is difficult to ensure that the soil on which plants depend to survive is stable. The honeycomb system can be used as a container of the plant-growing base material, the filling thickness of the plant-growing base material is ensured, the stability of the plant-growing base material in the cells can be ensured by utilizing the reinforcement effect of the vertical face and the overall lateral limitation of the earthwork cells, and the plant-growing base material cannot fall off in a large area under the influence of adverse factors such as rain erosion and the like due to small friction force with a slope. In addition, the honeycomb system for ecologically repairing the smooth and flat high-steep side slope can realize the full coverage of soil on the high-steep side slope, does not expose the 'stubble' surface, and has attractive repairing effect.
Claims (6)
1. A honeycomb system for ecological restoration of smooth and flat high steep slopes, characterized in that: the system consists of a main anchor rod, a geocell, auxiliary anchors, supporting ribs and a geogrid; the main anchor rod and the auxiliary anchor rod fix the geocell on the high steep slope, the geocell is pressed on the geocell, and the supporting rib is pressed on the geocell.
2. A honeycomb system for ecological restoration of smooth and flat high steep slopes as set forth in claim 1, wherein: the main anchor rod is made of a twisted steel, a 90-degree hook is added at one end of the main anchor rod, and the main anchor rod hook and the exposed part are painted with yellow antirust paint.
3. A honeycomb system for ecological restoration of smooth and flat high steep slopes as set forth in claim 1, wherein: the auxiliary anchor rod is made of polished round steel bars, 180-degree hooks are added to the end parts of the auxiliary anchor rod, and rust-proof paint is brushed on the exposed parts of the auxiliary anchor rod.
4. A honeycomb system for ecological restoration of smooth and flat high steep slopes as set forth in claim 1, wherein: holes are needed to be punched on the geocell membrane.
5. A honeycomb system for ecological restoration of smooth and flat high steep slopes as set forth in claim 1, wherein: a screw thread reinforcing steel bar is adopted as a supporting rib; the supporting ribs are arranged transversely and vertically along the slope, the crossing points are located on the main anchor rods, the transverse supporting ribs are located on the inner sides of hooks of the main anchor rods, and the vertical supporting ribs are located on the outer sides of the transverse supporting ribs and fastened with the transverse supporting ribs and the main anchor rods.
6. A honeycomb system for ecological restoration of smooth and flat high steep slopes as set forth in claim 1, wherein: the geogrid is made of two-way polypropylene, is sleeved on the hook at the position of the main anchor rod, and is fastened with the main anchor rod and the supporting ribs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320860133.0U CN219773002U (en) | 2023-04-18 | 2023-04-18 | Honeycomb system for ecological restoration of smooth and flat high-steep side slope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320860133.0U CN219773002U (en) | 2023-04-18 | 2023-04-18 | Honeycomb system for ecological restoration of smooth and flat high-steep side slope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219773002U true CN219773002U (en) | 2023-09-29 |
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ID=88103969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320860133.0U Active CN219773002U (en) | 2023-04-18 | 2023-04-18 | Honeycomb system for ecological restoration of smooth and flat high-steep side slope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219773002U (en) |
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2023
- 2023-04-18 CN CN202320860133.0U patent/CN219773002U/en active Active
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