CN219080269U - Ecological beach structure of three-dimensional hemp rope net - Google Patents
Ecological beach structure of three-dimensional hemp rope net Download PDFInfo
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- CN219080269U CN219080269U CN202320060171.8U CN202320060171U CN219080269U CN 219080269 U CN219080269 U CN 219080269U CN 202320060171 U CN202320060171 U CN 202320060171U CN 219080269 U CN219080269 U CN 219080269U
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Abstract
The utility model discloses an ecological beach-fixing structure of a three-dimensional hemp rope net, which comprises a three-dimensional hemp rope net sheet formed by a coarse hemp rope net and fine hemp rope nets covering the upper surface and the lower surface of the coarse hemp rope net, wherein the coarse hemp rope net is fixedly connected with an upper layer of fine hemp rope net and a lower layer of fine hemp rope net, a plurality of anchor rings are embedded on the net surface of the three-dimensional hemp rope net sheet at intervals, and anchor nails corresponding to the anchor rings one by one are also included. The advantage is that the upper and lower surfaces on the thick rope net are respectively covered with a layer of fine hemp rope net, the thick rope net has high strength, but large gaps, the protective capability of the gaps is insufficient, the thin rope net has moderate strength, but small gaps, the coverage is high, the beach substrate can be better guarded, and the scour resistance of the whole structure is greatly improved. The fine rope net and the coarse rope net are connected, the advantages are complementary, a three-dimensional structure is formed, the integral strength and stability of the structure are guaranteed, and the protection of a matrix is realized; the anchoring ring is embedded in the net surface of the three-dimensional rope net, and the anchoring nails can not crush net holes of the rope net during fixing, so that the three-dimensional rope net is convenient to install and better in durability.
Description
Technical Field
The utility model belongs to the technical field of wetland ecological restoration, and particularly relates to a three-dimensional hemp rope net ecological beach-fixing structure.
Background
In the construction of a inland waterway, in order to maintain the stability of the waterway and improve the water flow condition in the waterway, a beach fixing project is adopted to strengthen the river side beaches. Especially for the large river of the Yangtze river, the hydrologic situation is complex, the river beach is changeable, and the beach fixing is an important channel treatment means.
Conventional beach structures, such as a riprap or a row structure, typically employ hardened materials or composite materials. Although these structures have good channel remediation, there are two disadvantages: firstly, the river bed can be hardened, so that the exchange of substances and energy among elements of a river ecological system is hindered, the vegetation growth is not facilitated, and the aquatic organism habitat is influenced; secondly, the material is difficult to degrade, and after being put into engineering, the material can generate lasting effect, and part of artificial composite materials can continuously release harmful substances to pollute water and substrate sludge matrix, so that ecological restoration of rivers is not facilitated. In recent years, in the construction of a Yangtze river channel, an ecological beach-fixing structure using degradable hemp ropes as a main material has been proposed, and the beach-fixing is performed by connecting the hemp ropes into a net and laying the net on the beach surface. The structure is applied to the water channel pouring kiln beach daemon of the Yangtze river lotus root pond, so that the scouring of water flow to a substrate is relieved to a certain extent, but the following problems also exist: (1) The rope net has larger gaps, and can relieve the scouring of water flow to the matrix to a certain extent, but the scouring prevention capability of the large gaps is insufficient, and the effect needs to be enhanced; (2) Poor structural stability, insufficient strength, easy deformation and deflection after being applied to engineering, therefore, the requirements on hydrologic conditions are high, and the method is not suitable for the conservation of beach with long inundation period and large flow speed; (3) The rope net is not provided with an anchoring part usually, the anchoring part is easy to cause damage such as mesh fracture, net rope disconnection and the like to the rope net structural body when the anchoring part is fixed, and the anchoring part is easy to be separated from the anchoring part when the rope net is washed.
Disclosure of Invention
The utility model aims to provide a three-dimensional hemp rope net ecological beach-fixing structure, which aims to overcome the defects in the prior art.
The technical scheme for solving the technical problems is as follows: the utility model provides a three-dimensional hemp rope net ecology structure of fixing beach, its includes by coarse hemp rope net and cover in the three-dimensional hemp rope net piece that fine hemp rope net of coarse hemp rope net upper surface and lower surface constitutes, coarse hemp rope net and upper and lower two-layer fine hemp rope net equal fixed connection just the mesh size of coarse hemp rope net is greater than the mesh size of fine hemp rope net, a plurality of anchor rings are inlayed to the interval on the mesh surface of three-dimensional hemp rope net piece, still include with anchor ring one-to-one.
On the basis of the technical scheme, the utility model can be improved as follows.
Further, the coarse hemp rope net and/or the fine hemp rope net are bound and fixed with the anchoring ring.
Further, the anchoring ring is a bamboo ring, a wood ring, an iron ring, a plastic ring or a hemp rope ring.
Further, the coarse hemp rope net and the fine hemp rope ring are bound and connected and fixed through hemp ropes.
Further, the anchor is a bamboo pile or a wood pile.
Further, the diameter of the hemp rope forming the hemp rope net is 8-12mm, the diameter of the hemp rope forming the fine hemp rope net is 0.8-1.5mm, the mesh size of the hemp rope net is 80-120mm, and the mesh size of the fine hemp rope net is 10-20mm.
Compared with the prior art, the utility model has the technical effects and advantages that:
(1) The coarse rope net with large aperture is used as a frame, the coarse rope net can play a role of main stress when the guarding matrix is not washed, and the upper and lower layers of fine rope nets are bound by utilizing the rope connection, so that the fine rope net is protected from being washed down, and the integral stability of the structure is improved.
(2) The fine hemp rope nets are respectively coated on the upper surface and the lower surface of the coarse rope net, the coarse rope net has high strength, but large gaps, the protection capability of the gaps is insufficient, the fine rope net has moderate strength, but small gaps and high coverage, the beach surface matrix can be better guarded, and the anti-scouring capability of the whole structure is greatly improved. The fine rope net and the coarse rope net are connected, and the advantages of the fine rope net and the coarse rope net are complementary to form a three-dimensional structure, so that the integral strength and stability of the structure are guaranteed, and the protection of a substrate is realized.
(3) Utilize the fixed three-dimensional rope net of bamboo or wood system anchor, ensure that the rope net lays smoothly, and the structure is firm, is provided with the anchor ring in the net face, cooperates with the anchor, and the anchor can not destroy the mesh because of running through the rope net during the fixed, and the rope net is more durable, and the planting pioneer vegetation of cooperation broadcast grass seed or cuttage mode realizes ecological solid beach again.
(4) The three-layer rope net three-dimensional structure can prevent the matrix from losing by utilizing a ballast covering mode under the submerged condition, and gaps in the three-layer rope net three-dimensional structure can form local slow flow to reduce the brushing effect of water flow, have better scour prevention capability and provide stable growth space for the development of flood-resistant vegetation seedlings.
Drawings
Fig. 1 is a schematic perspective view of a three-dimensional hemp rope net ecological beach structure (only three layers of hemp rope nets are shown, and anchoring rings are not shown) provided by the utility model;
fig. 2 is a top view of a three-dimensional hemp rope net ecological beach fixing structure provided by the utility model;
fig. 3 is a schematic view of an anchoring member when the ecological beach fixing structure of the three-dimensional hemp rope net shown in fig. 2 is anchored to the ground by an anchor.
In the drawings, the list of components represented by the various numbers is as follows:
1. a coarse hemp rope net; 2. a fine hemp rope net; 3. an anchor ring; 4. and (5) anchoring.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, if terms indicating orientations such as "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc. are used, the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, only for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the indicated devices or elements must have a specific orientation, be configured and operated in the specific orientation, and thus are not to be construed as limiting the present utility model.
As shown in fig. 1 to 3, the utility model provides a three-dimensional hemp rope net ecological beach structure, which comprises a three-dimensional hemp rope net sheet formed by a coarse hemp rope net 1 and a fine hemp rope net 2 covered on the upper surface and the lower surface of the coarse hemp rope net 1, wherein the coarse hemp rope net 1 is fixedly connected with the fine hemp rope net 2 on the upper layer and the lower layer, the mesh size of the coarse hemp rope net 1 is larger than that of the fine hemp rope net 2, a plurality of anchor rings 3 are embedded on the mesh surface of the three-dimensional hemp rope net sheet at intervals, and the three-dimensional hemp rope net sheet further comprises bamboo or wooden anchor nails 4 which are in one-to-one correspondence with the anchor rings 3.
The hemp rope net is adopted as a main material, so that the material is degradable, does not produce secondary pollution and has high ecological fusion property. The structure takes a large-aperture coarse rope net as a framework, a layer of small holes are respectively covered on the upper surface and the lower surface of the framework, the coarse rope net and the fine rope net are mutually connected to form a three-layer three-dimensional structure, the middle is filled with soil for ballast, and the structure is matched with the sowing of pioneer vegetation, so that the structure has higher strength and stability. Meanwhile, the two layers of fine rope nets can make up for the defect of the scouring resistance of the large-aperture coarse rope net. The bamboo or wooden anchor nails are used for fixing the three-dimensional rope net, so that the rope net is ensured to be laid flatly and is stable in structure, and pioneer vegetation is planted in a mode of sowing grass seeds or cutting, so that ecological beach fixing is realized. The dredged soil can be selected as a beach-fixing matrix for vegetation growth and development, the pioneer vegetation takes priority of native species, and the double spike paspalum, the rescue field peas, the Phalaris, the bermudagrass, the clover, the reed and the like can be selected, and various vegetation are matched and combined to be matched with later fertilization and maintenance, so that the survival rate is improved. After vegetation grows and matures, the soil is fixed by the roots, beach conservation is realized, and meanwhile, after the rope net is degraded, the environment is not affected, and organic nutrients can be provided for vegetation growth.
In one embodiment of the utility model, the coarse and/or fine hemp rope net 1, 2 is fastened to the anchoring ring 3. Specific implementation modes include, but are not limited to, at the anchoring ring, holes are reserved at the anchoring ring when the thick and thin twine nets are woven and formed, and after the twine nets are formed, the twine nets around the reserved holes are connected by twines after the twine nets are placed into the anchoring ring.
In one embodiment of the utility model, the anchoring ring 3 is a bamboo ring, a wood ring, an iron ring, a plastic ring or a hemp rope ring. When the rope ring is made of hemp, the rope ring can be synchronously formed with the rope net through a braiding skill when the anchor holes are reserved for braiding and forming the three layers of hemp net.
In one embodiment of the utility model, the coarse twine net 1 and the fine twine ring are fixed by twine binding connection. In other words, after the three layers of nets are overlapped, the three layers of nets can be bound by twines at proper positions and distributed on the whole net surface in a lattice shape.
In one embodiment of the utility model, the anchor 4 is a bamboo pile or a wood pile.
In one embodiment of the utility model, the diameter of the hemp ropes constituting the hemp rope net 1 is 8-12mm, the diameter of the hemp ropes constituting the fine hemp rope net 2 is 0.8-1.5mm, the mesh size of the hemp rope net 1 is 80-120mm, and the mesh size of the fine hemp rope net 2 is 10-20mm.
In a preferred embodiment of the present utility model, the implementation of the ecological beach fixing structure of the three-dimensional hemp rope net comprises the following steps:
(1) Designing a thick rope net: natural hemp ropes are used as materials, the natural hemp ropes are woven into rope nets, the diameter of each hemp rope is 10mm, and the aperture of each rope net is 100mm.
(2) String net design: natural hemp ropes are used as materials, and are woven into rope nets manually. The pore diameter of the fine rope net needs to be as small as possible to ensure better scour resistance, but cannot be too small to prevent vegetation from growing. Two types of string mesh specifications are recommended: (1) the diameter of the hemp rope is 1mm, the aperture of the rope net is 5mm, the aperture of the fine rope net is smaller, and the hemp rope is suitable for beach surfaces with stronger water flow flushing and longer submerging time; (2) the diameter of the hemp rope is 1mm, the aperture of the rope net is 10mm, the aperture of the fine rope net is moderate, and the hemp rope is suitable for beach surfaces with weaker water flow flushing and shorter submerging time.
(3) Filling and planting grass: the dredged spoil is used as a beach-fixing matrix to level and properly compact the beach surface. Grass seeds are sown in the soil layer, at least more than three vegetation are selected for mixing and collocation, the native species are preferentially considered, and the double spike paspalum, the rescue field peas, the phalaris arundinacea, the bermudagrass, the clover, the reed and the like can be selected. The number of each plant seed per square meter is not less than 20, and the sowing season is preferably 10-12 months. And after the first sowing, the supplementary sowing is carried out at intervals of 2-3 weeks according to the germination condition of the vegetation.
(4) The placement mode is as follows: and respectively prefabricating and forming the coarse rope net and the fine rope net before putting, wherein the size of the unit grid is not less than 5m multiplied by 5 m. After the rope net units of different types are transported to a construction area, laying a fine rope net on the lower surface layer on the beach surface after vegetation sowing is completed, laying a coarse rope net unit on the beach surface, connecting the coarse rope net units to complete an integral frame, binding the fine rope net on the coarse rope net frame, fixing the rope net frame by bamboo or wood anchors (the formation of the anchor rings on the beach surface is not repeated in the embodiment), and ensuring that the anchor anchors are spaced by 2m and 45cm long, so that the rope net is smooth and is tightly attached to the beach surface. Filling a small amount of soil in the coarse rope net to compact the rope net, covering the fine rope net on the surface layer, and binding the fine rope net on the coarse rope net framework, wherein the soil layer is not more than 10mm thick. Hemp ropes are used for binding connection between the rope nets and the anchor nails.
(5) And (3) post-curing: after the vegetation is sown, watering and fertilizing are carried out regularly, and the vegetation growth condition is observed and recorded. Before the growth and maturation, the vegetation root system is incomplete in development, poor in soil fixing capability, easy to fall off and die due to matrix loss under water flow washing, and particularly high in survival pressure in the first flood period. The method is characterized in that the method is carried out on site after the first year flood, the structural integrity and the vegetation coverage are checked, and the conditions of soil loss, vegetation extinction, rope net damage, deformation and the like are timely repaired and maintained.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (6)
1. The utility model provides a three-dimensional hemp rope net ecology structure of fixing beach, its characterized in that includes by coarse hemp rope net (1) and cover in the three-dimensional hemp rope net piece that fine hemp rope net (2) of coarse hemp rope net (1) upper surface and lower surface constitute, coarse hemp rope net (1) with upper and lower two-layer fine hemp rope net (2) all fixed connection just the mesh size of coarse hemp rope net (1) is greater than the mesh size of fine hemp rope net (2), a plurality of anchor rings (3) are inlayed to the interval on the mesh surface of three-dimensional hemp rope net piece, still include with anchor (4) of anchor ring (3) one-to-one.
2. The ecological beach fixing structure of a three-dimensional hemp rope net according to claim 1, characterized in that the coarse hemp rope net (1) and/or the fine hemp rope net (2) are/is bound and fixed with the anchoring ring (3).
3. The ecological beach-fixing structure of a three-dimensional hemp rope net according to claim 1, characterized in that the anchoring ring (3) is a bamboo ring, a wood ring, an iron ring, a plastic ring or a hemp rope ring.
4. The ecological beach fixing structure of the three-dimensional hemp rope net according to claim 1, characterized in that the hemp rope net (1) and the fine hemp rope ring are fixedly bound and connected through hemp ropes.
5. The ecological beach fixing structure of a three-dimensional hemp rope net according to claim 1, characterized in that the anchor (4) is a bamboo pile or a wood pile.
6. A three-dimensional hemp rope net ecological beach structure according to any one of claims 1 to 5, characterized in that the hemp rope diameter constituting the hemp rope net (1) is 8-12mm, the diameter of the hemp rope constituting the fine hemp rope net (2) is 0.8-1.5mm, the mesh size of the hemp rope net (1) is 80-120mm, and the mesh size of the fine hemp rope net (2) is 10-20mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202320060171.8U CN219080269U (en) | 2023-01-10 | 2023-01-10 | Ecological beach structure of three-dimensional hemp rope net |
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| CN202320060171.8U CN219080269U (en) | 2023-01-10 | 2023-01-10 | Ecological beach structure of three-dimensional hemp rope net |
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| CN202320060171.8U Active CN219080269U (en) | 2023-01-10 | 2023-01-10 | Ecological beach structure of three-dimensional hemp rope net |
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