CN219260878U - Stepped ecological bank protection structure - Google Patents

Abstract

The utility model discloses a stepped ecological bank protection structure, which comprises a prestress combined bank protection pile and a plurality of gabion groups; the prestress combined shoreside pile is arranged at the front end of the river levee; the gabion groups are laid on the river levee in a stepwise manner, and the gabion in each gabion group is filled with block stones; a water vegetation layer is arranged between the prestress combined shotcrete and the gabion group closest to the prestress combined shotcrete and used for planting water plants; and vegetation fiber layers are laid between adjacent gabion groups and on the top surfaces of the gabion groups and are used for planting herbaceous soil-fixing plants and/or waterlogging-resistant arbor. The utility model has good wave-proof effect, simple construction, saves complex interlocking blocks, and improves the landscape property while realizing ecological slope protection.

Description

Stepped ecological bank protection structure

Technical Field

The utility model relates to the technical field of river course embankment ecological protection, in particular to a stepped ecological bank protection structure.

Background

River bank protection is an important component of river management, and the traditional river bank protection method such as concrete bank protection and slurry stone bank protection has a certain bank protection function, but the defects are more and more obvious: the hard shore protection engineering cost is relatively high, the required cement amount is large, the foundation requirements are strict, and the construction procedures are more; along with the gradual development of the green ecological concept, the river revetment also gradually needs to consider the application of the combination of the revetment function and the green ecology, but the passage between the land and the water body is separated in the traditional hard revetment engineering, the self-cleaning function of the river water body is destroyed, the material exchange between the living beings in the river and the surrounding soil environment is not facilitated, and the original ecology is destroyed.

Disclosure of Invention

The utility model aims to overcome the defects of the traditional hard revetment in the prior art, provides a stepped ecological revetment structure, improves the wave-proof effect, is convenient to construct, omits complex interlocking blocks, realizes ecological revetment and improves the landscaping.

In order to solve the technical problems, the utility model is realized by adopting the following scheme:

the utility model provides a stepped ecological bank protection structure, which comprises a prestress combined bank protection pile and a plurality of gabion groups; the prestress combined shoreside pile is arranged at the front end of the river levee; the gabion groups are laid on the river levee in a stepwise manner, and the gabion in each gabion group is filled with block stones; a water vegetation layer is arranged between the prestress combined shotcrete and the gabion group closest to the prestress combined shotcrete and used for planting water plants; and vegetation fiber layers are laid between adjacent gabion groups and on the top surfaces of the gabion groups and are used for planting herbaceous soil-fixing plants and/or waterlogging-resistant arbor.

Preferably, the prestress combined revetment pile comprises a plurality of concrete precast piles and pile caps; the concrete precast piles are driven at the normal water level elevation along the planned shoreline; and the pile caps are fixed at pile tops of the concrete precast piles.

Preferably, the gabion group is provided with three layers in a step-shaped manner; the lower layer and the middle layer comprise two rows of 4 gabion monomers fixedly connected with each other; the upper layer is a row of 4 gabion monomers which are fixedly connected with each other, and the water facing sides of the gabion monomers are staggered by one gabion monomer width.

Preferably, the filter further comprises a gravel pad layer and a water filtering geotextile; the gravel stone cushion layer is arranged below the gabion group, and the drainage soil engineering is paved below the gravel stone cushion layer.

Preferably, the gabion monomers are 2000mm long, 1000mm wide and 500mm high; 2 partition boards are arranged in the gabion single body, and the 2 partition boards are used for dividing the interior of the gabion single body into 3 independent triangular body units.

Preferably, the method further comprises a dike top, wherein the dike top is used for planting ornamental trees and/or ornamental herbaceous plants.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model arranges the prestressed combined shoreside pile at the front end of the river levee, adopts a prestressed structure with high strength and good durability, can provide effective support for the river levee, has good anti-shoveling effect on the sliding of the bank slope and the erosion prevention effect on the wave water flow, and effectively avoids the soil layer loss of the bank slope. After construction, the bank slope forms a hydrophilic platform, and the water landscape plants are planted on the hydrophilic platform, so that the self-cleaning capacity of the water body can be improved, and the development of biodiversity can be promoted.

2. The gabion group of this novel shore protection sets up to cascaded, plays the effect of strengthening the bank slope, sets up vegetation planting layer between the adjacent gabion group, and the vegetation of planting can play good slope protection soil fixing effect, and the waterlogging-resistant arbor of vegetation layer plays the effect that slows down flood velocity, prevent wind and prevent unrestrained in the flood coming in time.

3. The gabion is used as a stepped material, has the advantages of low cost, high construction efficiency, stable integral reinforcement, good permeability, good basic hydrophilicity and the like, can omit the use of interlocking blocks, and meanwhile, the sludge existing between stones in the gabion is beneficial to plant growth, and can implement vegetation greening and is beneficial to ecology.

Drawings

Fig. 1 is a schematic side view of a stepped ecological bank protection structure according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a stepped ecological bank protection structure according to an embodiment of the present utility model;

fig. 3 is a schematic structural view of a gabion monomer in a stepped ecological bank protection structure according to an embodiment of the present utility model;

in the figure: 1. river levee; 2. prestress combined shoreside protecting pile; 3. gabion groups; 4. a pile cap; 5. a water vegetation layer; 6. a gravel layer; 7. a water-filtering geotextile; 8. a vegetation fiber layer; 9. herbaceous soil-fixing plants; 10. waterlogging-tolerant arbor; 11. ornamental arbor; 12. ornamental herbs; 13. a partition board.

Detailed Description

The utility model is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

As shown in fig. 1-3, the utility model provides a stepped ecological bank protection structure, which comprises a prestress combined bank protection pile 2 and a plurality of gabion groups 3, wherein the prestress combined bank protection pile 2 is arranged at the front end of a river levee 1, the gabion groups 3 are paved on the river levee 1 in a stepped manner, and the gabion gabions in each gabion group 3 are filled with lump stones with different particle diameters; a water vegetation layer 5 is arranged between the prestress combined shore protection pile 2 and the gabion group 3 closest to the prestress combined shore protection pile and is used for planting water plants; and vegetation fiber layers 8 are paved between the adjacent gabion groups 3 and on the top surfaces of the gabion groups 3 and are used for planting herbaceous soil-fixing plants 9 and/or waterlogging-resistant trees 10. The front end of the river levee 1 of the stepped ecological bank protection structure is provided with the prestress combined bank protection pile 2, and the prestress structure with high strength and good durability is adopted, so that effective support can be provided for the river levee 1, the effects of resisting the sliding of a bank slope and preventing scouring of wave water flow are good, and soil layer loss of the bank slope is effectively avoided. After construction, the bank slope forms a hydrophilic platform, and the water landscape plants are planted on the hydrophilic platform, so that the self-cleaning capacity of the water body can be improved, and the development of biodiversity can be promoted.

Specifically, the front end of the river levee 1 is paved with a prestressed combined shoreside pile 2, the prestressed combined shoreside pile 2 comprises a plurality of concrete precast piles and pile caps 4, the concrete precast piles are usually cast at normal water level elevations along planned shorelines, the length, width and thickness of the cast concrete precast piles are determined according to the geological structure of the area where the shores are located, and the pile caps of the concrete precast piles are used for connecting the single piles into a whole through the pile caps 4: pile bodies of the single concrete precast piles are embedded into the pile caps 4 to a certain depth, and main stress steel bars of the pile bodies are welded and fixedly connected with steel bars of the pile caps 4 to form a whole. The prestress combined shoreside pile 2 can resist the impact of water flow on the bank slope, prevent soil layer loss so as to prevent the bank slope from collapsing, and play a role in fixing and supporting the integral stability of the stepped bank slope.

Before a plurality of gabion groups 3 which are step-type are paved on the river levee 1, the back of the set prestress combined shoreside protection pile 2 is required to be backfilled and leveled, the leveling is carried out in a leveling time-division mode, the gabion groups 3 are fixedly connected in a connection mode between the steps, and the plane distance between the steps is 3 to 5 times that of the gabion width, specifically: firstly, leveling a first-stage ladder, namely leveling between a shore protection pile cap 4 and a gabion group 3 closest to a prestress combined shore protection pile 2, arranging a shore vegetation layer 5 in the first leveling layer, wherein emergent aquatic plants are the most important plant materials in the construction of the shore vegetation layer 5, and the shore vegetation layer 5 can be used for planting emergent aquatic plants such as common calamus, typha, reed and iris, and the like, so that the landscaping is enhanced while soil is protected.

Gabion group 3 that is the cascaded setting on bank slope, gabion group 3 of every step is by last three-layer masonry down, also presents to be the ladder type, and lower floor and middle level are by two rows, 4 gabion monomers of every row are fixed through the steel wire hinge, and the upper strata is that 4 gabion monomers of a row are fixed through the steel wire hinge to the gabion monomer of this row is met water side and is staggered a gabion monomer width. The gabion is filled with the block stones with different grain diameters, when the gabion group 3 is placed, the foundation paving surface is firstly ensured to be firm and stable, no impurities are generated, and 400g/m is firstly paved above the paving surface ² Or 500g/m ² The water filtering geotextile 7 is connected by sewing, and the sand gravel cushion layer 6 with the thickness of 15-20cm is paved on the water filtering geotextile 7, so that the reverse filtering function can be realized while the gabion binding wires are prevented from being punctured. When filling the stone blocks, the stone blocks are filled in layers, the thickness of each layering is controlled below 30cm, and the top surface is 2-3cm higher than the gabion for filling in consideration of sedimentation. As shown in FIG. 3, in the gabion group 3, the gabion monomers used are 500mm thick (height), 1000cm wide (perpendicular to the water flow direction) and 2000mm deep (length) and are composed of a bottom plate, side plates, a cover plate and a spacer mesh, wherein 2 partition plates 13 are arranged in the gabion monomersThe 2 partition plates 13 are used for dividing the interior of the gabion monomer into 3 independent triangular body units, so that the gabion monomer has good stability; the partition plate 13 is hinged and fixed with the gabion by adopting steel wires; the gabion monomers are also hinged and fixedly connected into a whole by steel wires, all the used steel wires are made of PVC materials, and the surfaces of the steel wires are subjected to zinc treatment so as to delay corrosiveness. The mesh specification of the gabion monomers can be selected according to the concrete conditions of filling stones and particle sizes, but the porosity of the stones filled by the gabion monomers is required to be less than 20%, and small stones can be adopted to fill gaps so as to ensure compactness. The gabion group 3 is used as a step material, and the gabion has the advantages of low cost, high construction efficiency, stable integral reinforcement, good permeability, good basic hydrophilicity and the like, so that the use of a interlocking block can be omitted, simultaneously, the sludge existing between stones in the gabion is beneficial to plant growth, and vegetation greening can be implemented to be beneficial to ecology.

Except for the first step, lay 10cm thick clear foundation soil and then lay vegetation fibrous layer 8 on its top surface after gabion group 3 construction is accomplished, also the flattening is laid vegetation fibrous layer 8 between the adjacent gabion group 3, plant herbaceous solid soil plant 9 and waterlogging-tolerant arbor 10 in vegetation fibrous layer 8, herbaceous solid soil plant 9 can plant more common slope protection grass: the bermudagrass has the advantages that the bermudagrass has strong vitality and developed rhizome, and can well play roles in preventing wind, fixing sand, fixing dike and protecting soil; in addition, corresponding gaps are reserved when the bermudagrass is planted, after the growth of the bermudagrass is stable, waterlogging-tolerant arbor 10 can be planted, and when flood occurs, the waterlogging-tolerant arbor 10 can play a role in slowing down the flow rate of the flood and consuming wave energy so as to achieve the effects of wave elimination and slope protection, such as planting of maples, willows and the like. The short herb soil-fixing plants 9 and waterlogging-tolerant arbor 10 planted on the stepped level flat ground have good slope protection functions, and good ecology and landscape effects can be represented by the layering sense in space. Except the first step, the steps of the rest steps are arranged according to the method until the dike tops with the designed elevation, ornamental trees 11 and ornamental herbs 12 can be planted on the dike tops with the designed elevation after the dike tops are leveled, the planted ornamental trees 11 are like wetting-loving climate, water fir and larch with higher ornamental value, the ornamental herbs 12 under the trees are like flowering herb vegetation impatiens and the like, and beautiful ecological landscapes can be created by matching plants with higher ornamental value on two sides.

It should be understood that the utility model is not described in detail in the prior art.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present utility model, and such modifications and variations should also be regarded as being within the scope of the utility model.

Claims (6)

1. The stepped ecological bank protection structure is characterized by comprising a prestress combined bank protection pile and a plurality of gabion groups; the prestress combined shoreside pile is arranged at the front end of the river levee; the gabion groups are laid on the river levee in a stepwise manner, and the gabion in each gabion group is filled with block stones; a water vegetation layer is arranged between the prestress combined shotcrete and the gabion group closest to the prestress combined shotcrete and used for planting water plants; and vegetation fiber layers are laid between adjacent gabion groups and on the top surfaces of the gabion groups and are used for planting herbaceous soil-fixing plants and/or waterlogging-resistant arbor.

2. The stepped ecological revetment structure of claim 1, wherein said prestressed composite revetment piles comprise a plurality of precast concrete piles and pile caps; the concrete precast piles are driven at the normal water level elevation along the planned shoreline; and the pile caps are fixed at pile tops of the concrete precast piles.

3. The stepped ecological bank protection structure according to claim 1, wherein the gabion groups are provided with three layers in a stepped manner; the lower layer and the middle layer comprise two rows of 4 gabion monomers fixedly connected with each other; the upper layer is a row of 4 gabion monomers which are fixedly connected with each other, and the water facing sides of the gabion monomers are staggered by one gabion monomer width.

4. The stepped ecological bank protection structure of claim 1 further comprising a gravel pad layer and a drainage geotextile; the gravel stone cushion layer is arranged below the gabion group, and the drainage soil engineering is paved below the gravel stone cushion layer.

5. A stepped ecological bank protection structure according to claim 3, wherein the gabion monomers are 2000mm long, 1000mm wide and 500mm high; 2 partition boards are arranged in the gabion single body, and the 2 partition boards are used for dividing the interior of the gabion single body into 3 independent triangular body units.

6. The stepped ecological bank protection structure of claim 1, further comprising a dike top for planting ornamental trees and/or ornamental herbs.

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