CN207498888U - A kind of alluvial flat wetland swag system - Google Patents
A kind of alluvial flat wetland swag system Download PDFInfo
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- CN207498888U CN207498888U CN201721154986.3U CN201721154986U CN207498888U CN 207498888 U CN207498888 U CN 207498888U CN 201721154986 U CN201721154986 U CN 201721154986U CN 207498888 U CN207498888 U CN 207498888U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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Abstract
The utility model is related to a kind of alluvial flat wetland swag systems, including being arranged on alluvial flat close to the level-one swag unit of river main stem and at least level-one is arranged on the secondary swag unit on the outside of the first order swag unit, the level-one swag unit includes at least two level-one swags being connected by the ecological branch of a river, every level-one of the secondary swag unit includes at least two secondary swags being connected by the ecological branch of a river, it is connected between the level-one swag and main stem by semi-permeable ecological weir, it is connected between swag not at the same level by permeating ecological weir, it is connected between swag at the same level by the ecological branch of a river.The utility model is together constituted the swag system of alluvial flat Wetlands buffering by multistage swag, the hydraulic connection of river main stem and alluvial flat is enhanced, the pollutant being lowered by the precipitation of swags at different levels, section dirty and infiltration dam filtering and catharsis in river main stem water body.
Description
Technical field
The utility model is related to river ecologicals to administer field, more particularly to a kind of alluvial flat wetland swag system, especially
It is suitble to the naturalization structure of the plain tract alluvial flat wetland swag with one fixed width alluvial flat.
Background technology
In east China pediment plain and plains region, especially in Northeast plain and North China Plain area, river is in nature
It can develop under state to wandering stream, form the alluvial flat of area broadness.The a large amount of old branch of a river, bow lake are formed on alluvial flat
Pool and it is artificial dig phenomena such as husky caused by pool together constitute the natural swag system of alluvial flat.In current plain tract
In the case of being constrained on its main stem, alluvial flat swag system just occurs bright only in flood period flood passage with river main stem more
Aobvious hydraulic connection；In low water and the period when a river is at its normal level, alluvial flat swag internal system and its poor with the hydraulic connection of river main stem
And then lead to water quality deterioration and aquatic ecosystem function reduction.Therefore, plains region alluvial flat and river how to be improved
Hydrology connectivity between road improves research and discussion that wet land water quality situation disease effectively improves river flood discharge capacity, to region of no relief
The reparation of alluvial flat wetland is particularly significant with building.
Under the premise of alluvial flat wetland swag system function is protected, using the microgeomorphologyd of alluvial flat, pass through structure
With transformation different depth, the swag of water level and shape, and strengthened between swag and swag and swag using the measures such as dam are permeated
Hydraulic connection between river can both improve the hydrology connectivity of alluvial flat wetland, enhance river system flood discharge capacity, intercept
Suspension, floating material in flood；The absorption to solable matter in water can also be increased, improve wet land system water quality；Meanwhile also
It can be required to select suitable muskeg according to wetland recovery project, there is preferable landscape effect.However, at present still without one
The plains region alluvial flat wetland constructive system that comprising the hydrology, water environment and water landscape is promoted of the class based on hydrology connectivity.
Utility model content
The purpose of this utility model is for the deficiency in present riverine wetland reparation and structure, proposes that a kind of alluvial flat is wet
Ground swag system, wetland swag system of the structure with stronger hydrology connectivity, can both meet on plain river alluvial flat
River flood passage requirement, and can ensure wet land system water quality, while the alluvial flat that can also have both landscape effect repairs structure.
To achieve the above object, the utility model provides a kind of alluvial flat wetland swag system, is overflow including being arranged on river
Beach close to river main stem level-one swag unit and at least level-one is arranged on the secondary hole on the outside of the level-one swag unit
Pool unit (two level, three-level and so on), the level-one swag unit include at least two be connected by the ecological branch of a river one
Grade swag, every level-one of the secondary swag unit include at least two and are cheated by the ad eundem secondary that the ecological branch of a river is connected
The pool, the level-one swag, secondary swag pool bottom height increased successively outward from main stem, the level-one swag and main stem it
Between be connected by semi-permeable ecological weir, be connected between the swag of different stage by permeating ecological weir.
Preferably, the semi-permeable ecological weir is trapezium structure, towards the dam body gradient and the main stem river levee of main stem
The gradient is identical, and the dam body gradient towards level-one swag is gentle slope structure.
Preferably, the semi-permeable ecological weir includes the intrabasement dam foundation of intrenched stream dike, is parallel to main stem direction and sets
It puts in the shore protection lattice guest gabions of the dam foundation both sides, vertical main stem direction is arranged on the side wall of the dam foundation both sides, is covered in
Ecological bed course on the outside of the semi-permeable ecological weir, nearly main stem side is equipped with the first permeable wall, the dam on the dam foundation
Remote main stem side is equipped with the second permeable wall on base, and storm pavement is both provided on the outside of first permeable wall and the second permeable wall
Cage is filled with water-purifying material layer between first permeable wall and the second permeable wall.
Preferably, shore protection lattice guest's gabion height is the 1/3 of dam body height, the ovum that inside filling grain size is 5~10cm
Stone；First permeable wall and dam crest are contour, and the second permeable wall is equal with river period when a river is at its normal level water level；The thickness of the dam foundation and river
It is identical to flow the low water level depth of water；The bank protection gabion height of the first permeable wall side is identical with the first permeable wall height, and described
The bank protection gabion height of two permeable wall sides is identical with the second permeable wall height.
Preferably, the bank protection gabion includes the cobble gabion, big grain size gravel gabion, the granule that set gradually from bottom to top
Diameter gravel gabion；Cobble gabion top dative guest's gabion top is equal, and big grain size gravel gabion top is equal with river par position.
Preferably, the water-purifying material layer includes being arranged on thickness on the dam foundation for 30cm boulder beds, grain size for 5~
10cm, the zeolite layer being arranged on boulder bed, grain size is 3~7cm and the center gabion being arranged on inside the zeolite layer, institute
It states zeolite layer and the second permeable wall is contour, biologic packing material is filled in the center gabion.
Biological ceramic particle that the biologic packing material is 1~2cm by grain size and grain size are 1~2cm slags by volume 6:4 is mixed
It closes, the biological ceramic particle is the haydite for being fixed with denitrifying bacteria strain；Zeolite layer can be handled by nitrification in water body
Nitrogen, biological ceramic particle can be by the nitrogen in the processing water body of denitrification, phosphorus that slag can be preferably in adsorbed water body.
Preferably, the ecological weir of the infiltration includes the intrabasement dam foundation of intrenched stream dike, parallel main stem direction is arranged on
The shore protection lattice guest gabion of the dam foundation both sides, vertical main stem direction be arranged on the side wall of the dam foundation both sides, be covered in it is described
The ecological bed course on the outside of ecological weir is permeated, both sides are provided with bank protection gabion, the dam foundation, lattice guest gabion, shield on the dam foundation
Slope gabion specification is identical with semi-permeable ecological weir with filler.
Preferably, the level-one swag, kind be implanted with hygrophyte and/or water plant in secondary swag, on ecological bed course
Also kind is implanted with hygrophyte and/or water plant.
Preferably, pass through water delivery between the secondary swag of first afterbody on the river main stem and inflow direction
Pipeline is connected, and is connected between the river main stem and the last one level-one swag on inflow direction by the ecological branch of a river.
Based on above-mentioned technical proposal, the utility model has the advantages that：
It is wet that the alluvial flat wetland swag system of the utility model can build a kind of alluvial flat with preferable hydrology connectivity
Ground buffer strip swag system.Wherein, swag at the same level is connected with the ecological branch of a river, is passed through between swag and swag and main stem not at the same level
Infiltration dam is connected with semi-permeable dam, and whole system is made to be provided simultaneously with improving river flood discharge capacity, water body self-purification ability and landscape effect
The characteristics of fruit.After this alluvial flat wetland swag system structure, have the positive effect that：
First, by semi-permeable dam and the horizontal infiltration on infiltration dam, the water of river main stem and alluvial flat wetland can be strengthened
Literary connectivity improves the ability and main stem flood discharge capacity of wetland Na Xuhongshui, has certain water resource analysis.In flood period
Can preferable Na Xuhongshui, effective flood peak clipping reduces threat of the flood to lower reaches of river.Joined by the longitudinal direction of the ecological branch of a river
System, it is ensured that the hydrology and ecosystem exchange capacity between swag at the same level have certain ecological functions.
Secondly, can stream self-purification ability be improved by alluvial flat wetland purification main stem river water in the period when a river is at its normal level.Permeate dam
Catharsis show river water laterally circulation on.River water first passes around filtering and the interception function of gravel in process of osmosis,
Suspended particulate substance in water body greatly reduces, and after water-purifying material layer is entered by permeable wall, occurs in zeolite filler first
Nitration reaction travels further into the absorption of generation anti-nitration reaction and phosphorus after biologic packing material layer, greatly reduces the nitrogen in water body
The pollutants such as phosphorus.
Finally, alluvial flat swag can rationally be set swag position and plant landscape plant according to landscape effect demand.In river
After the completion of overbank swag system structure, can be had according to the suitable humidogene of requirement of engineering and situation selection on the spot and water plant
Certain landscape function.
Description of the drawings
Attached drawing described herein is used to provide a further understanding of the present invention, and forms the part of the application,
The illustrative embodiments and their description of the utility model are not formed for explaining the utility model to the improper of the utility model
It limits.In the accompanying drawings：
Fig. 1 is alluvial flat wetland swag system schematic；
Fig. 2 is semi-permeable ecological weir structure diagram；
Fig. 3 is the ecological weir structure diagram of infiltration；
Fig. 4 is ecological weir schematic side view.
Specific embodiment
Below by drawings and examples, the technical solution of the utility model is described in further detail.
The utility model provides a kind of alluvial flat wetland swag system, as shown in Figure 1 to 4, this reality is shown
With a kind of novel preferred embodiment.The utility model is according to River Hydrology feature and alluvial flat microgeomorphologyd in alluvial flat
Upper structure or reconstruction swag, are connected between swag and main stem by the ecological branch of a river and ecological weir between swag, formed with compared with
The wetland swag system of strong hydrology connectivity.It mainly includes the content of two aspects, is the pool bottom height being connected with each other first
The multistage alluvial flat swag system of step variation；Secondly between ensureing different brackets swag and level-one swag and main stem it
Between hydrology connectivity ecological weir system.
Specifically, the alluvial flat wetland swag system includes being arranged on alluvial flat close to the level-one hole of river main stem 1
Pool unit and the two level swag unit being arranged on the outside of the level-one swag unit, the level-one swag unit include at least two
A level-one swag 2 being connected by the ecological branch of a river 7, the two level swag unit pass through ecological 7 phase of the branch of a river including at least two
The two level swag 3 of connection, the level-one swag 2, two level swag 3 bottom level increased successively outward from main stem 1, described one
It is connected between grade swag 2 and main stem 1 by semi-permeable ecological weir 4, by permeating ecology between the swag of different stage
Weir 5 is connected.
As shown in Figure 1, the level-one swag unit should be built on the alluvial flat close to river main stem 1, by partly oozing
Ecology weir 4 is connected with main stem 1 thoroughly.What the level-one swag unit was connected including at least two by the ecological branch of a river 7
Level-one swag 2, level-one swag 2 are preferred in the strip along river direction, bottom and the dam foundation top of semi-permeable ecological weir 4 etc.
It is high.The bottom of two level swag 3 should be higher than that 2 pool bottom of level-one swag, and so on, the sum of series gross reservoir capacity of multistage swag system should
Flow (is met within 5 years one or 10 years one meets) according to the river flood phase to determine.
The overhead height of the semi-permeable ecological weir 4 should combine River Flood standard and (meet within 5 years one or 10 years one meet) structure
It builds.Semi-permeable ecology weir 4 is arranged on swag on the direction of main stem 1, and length is determined according to swag size, described
The 1/4 of semi-permeable ecology 4 of length no more than swag perimeter of weir.Rest part dykes and dams are the common river levee of river main stem 1.It is excellent
Selection of land, the semi-permeable ecological weir 4 is trapezium structure, towards the dam body gradient and the 1 river levee gradient phase of main stem of main stem 1
Together, it is gentle slope structure towards the dam body gradient of level-one swag 2.
As shown in Fig. 2, the semi-permeable ecological weir 4 includes the intrabasement dam foundation 18 of intrenched stream dike, parallel main stem 1
Direction is arranged on the shore protection lattice guest gabion 8 of 18 both sides of the dam foundation, 1 direction of vertical main stem is arranged on 18 both sides of the dam foundation
Side wall 19, the ecological bed course 13 for being covered in semi-permeable ecological 4 outside of weir, nearly 1 side of main stem is set on the dam foundation 18
There is the first permeable wall 12, remote 1 side of main stem is equipped with the second permeable wall 16 on the dam foundation 18, first permeable wall 12 and the
Two permeable walls, 16 outside is both provided with bank protection gabion, and water purification material is filled between 12 and second permeable wall 16 of the first permeable wall
The bed of material.
The ecology bed course can according to circumstances select the ecology bag for being packed into bed mud in river to pile up or be laid with and be mixed with aquatic/humidogene
The plant-growth carpet of vegetable seeds.The water-purifying material layer include the thickness that is arranged on the dam foundation be 30cm boulder beds (grain size is 5~
10cm), the zeolite layer (grain size is 3~7cm) being arranged on boulder bed and the center gabion being arranged on inside the zeolite layer,
The zeolite layer and the second permeable wall are contour, and biologic packing material is filled in the center gabion.
As shown in Figure 2, Figure 4 shows, the dam foundation 18 is fluid-tight reinforced concrete structure substrate, needs intrenched stream levee foundation bottom, thickness
It is identical with the river low water level depth of water.18 both sides of the dam foundation in parallel 1 direction of main stem are provided with shore protection lattice guest gabion 8, prevent
River water washes away and fixes slope surface.Side wall 19 is provided on vertical 1 direction of main stem in 18 both sides of the dam foundation, i.e. both ends of the surface are side
Wall 19.Semi-permeable 4 inside setting twice non-fine concrete permeable wall of ecology weir, on the basis for ensureing the contact of river water transverse hydraulic
The integral strength of the upper semi-permeable weir of enhancing, prevents dam break risk.It is permeable to be equipped with first for nearly 1 side of main stem on the dam foundation 18
Wall 12, remote 1 side of main stem is equipped with the second permeable wall 16 on the dam foundation 18.Wherein, first permeable wall 12 and dam crest etc.
Height, the second permeable wall 16 are equal with river period when a river is at its normal level water level.
Preferably, the bank protection gabion include set gradually from bottom to top cobble gabion 9, big grain size gravel gabion 10,
Small particle gravel gabion 11.The bank protection gabion height of first permeable wall, 12 side is identical with 12 height of the first permeable wall, institute
The bank protection gabion height for stating 16 side of the second permeable wall is identical with 16 height of the second permeable wall.First permeable wall 12 sets 3 layers of stone
Cage fills cobble, big grain size gravel and small particle gravel respectively from down to up, forms cobble gabion 9, big grain size gravel gabion
10th, small particle gravel gabion 11,9 top dative guest's gabion top of cobble gabion is equal, big 10 top of grain size gravel gabion and river
Levelling water level is equal.Guarantee can be come back to by boulder bed in river by the particulate matter that permeable wall stops.
Water-purifying material layer is filled between twice permeable wall, the water-purifying material layer includes the thickness being arranged on the dam foundation 18
It spends the boulder bed 17 for 30cm, the zeolite layer 15 being arranged on boulder bed 17 and interior center is wrapped in by the zeolite layer 15
Gabion 14, the center gabion 14 is interior to be filled with biologic packing material.The biologic packing material by grain size be 1~2cm biological ceramic particle with
Grain size is 1~2cm slags by volume 6:4 mixing, the biological ceramic particle is the haydite for being fixed with denitrifying bacteria strain；Zeolite
Layer can handle the nitrogen in water body by nitrification, and biological ceramic particle can pass through the nitrogen in the processing water body of denitrification, slag
Phosphorus that can be preferably in adsorbed water body.
Second permeable wall, 16 rear side is also laid with 3 layers filled with cobble, big grain size gravel and small particle gravel from down to up
Gabion, effect are identical with 12 forepart gabion of the first permeable wall.The outside of entire semi-permeable weir 4 covers ecological bed course 13,
Humidogene and/or water plant can be planted thereon.Cobble gabion thickness is 30cm, big grain size gravel and small particle gravel gabion thickness phase
Together.
As shown in Figure 1, two level swag 3 is arranged on the outside of level-one swag 2, substrate level should be slightly above river ecological base
The height of water level of flow.River ecological Dryweather flow can simply regard as the Eco-environmental Water Requirements of Rivers, and computational methods are according to river
The methods of Tennant methods, the moon (year) fraction subjunctive or wetted perimeter method can be used in stream self-condition and known hydrographic data is counted
It calculates (most withered moon discharge method should not be used).Two level swag is connected with level-one swag using the ecological weir 5 of infiltration, and structure is with partly oozing
Ecology 4 structure of weir is similar thoroughly, only eliminates two layers of pervious concrete wall in dam body.
Specifically as shown in figure 3, the ecological weir 5 of the infiltration includes the intrabasement dam foundation 18 of intrenched stream dike, parallel main stem 1
Direction is arranged on the shore protection lattice guest gabion 8 of 18 both sides of the dam foundation, 1 direction of vertical main stem is arranged on 18 both sides of the dam foundation
Side wall 19 is covered in the ecological bed course 13 for permeating ecological 5 outside of weir, and both sides are provided with storm pavement on the dam foundation 18
Cage fills cobble, big grain size gravel and small particle gravel in the bank protection gabion respectively from down to up, forms cobble gabion 9, big
Grain size gravel gabion 10, small particle gravel gabion 11.
Preferably, on the river main stem 1 and inflow direction between the secondary swag 3 of first outermost level-one by defeated
Waterpipe 6 is connected, and river water is allow to be pumped into highest swag by water pump.On the river main stem 1 and inflow direction
It is connected between the last one level-one swag 2 by the ecological branch of a river 7, to enhance hydrology connectivity.Preferably, the level-one swag
2nd, kind is implanted with hygrophyte and/or water plant in two level swag 3 and on ecological bed course 13.Multistage swag together constitutes simultaneously
The swag system of alluvial flat Wetlands buffering by the precipitation of swags at different levels, cuts dirty and infiltration dam filtering and catharsis
The pollutant being lowered into 1 water body of river main stem.
The alluvial flat wetland swag system of the utility model is made of at least two-stage alluvial flat swag system, is overflow per level-one river
Beach swag system is also formed by connecting by least two swags by the ecological branch of a river, and swag system gross reservoir capacity can be for main stem for many years
The 60%~80% of average flood water.Specific swag quantity and swag system series by River Hydrology feature and administer Duan Heman
Beach face product determines.Specifically, the alluvial flat wetland swag system can be built as follows：
A, river main stem 1 and its water channel being connected with alluvial flat are blocked in construction section, by hole already present on alluvial flat
The pool drains or excavates new swag, and according to river natural conditions and landscape design requirement finishing and structure swag.
B, after shutting off, simple dredging and smooth processing are carried out to main stem (1) and swag bottom；It is needing to build life
Earth excavation at state weir is laid with the semi-permeable ecological weir dam foundation 18 and builds semi-permeable ecology between main stem 1 and level-one swag 2
Weir 4 is laid with the ecological weir dam foundation 18 of infiltration between adjacent different stage swag and builds the ecological weir 5 of infiltration.
C, it builds the ecological branch of a river 7 between swag at the same level to be connected, structure infiltration 5 phase of ecological weir between swag not at the same level
Connection builds semi-permeable ecological weir 4 between level-one swag 2 and main stem 1 and is connected.If any the ground of road construction demand
Side, can be connected by culvert pipe.
D, the covering ecological pad layer 13 in semi-permeable ecological weir 4, the ecological weir 5 of infiltration, and in level-one swag 2, two level
Kind is implanted with hygrophyte and/or water plant in swag 3 and in ecological bed course 13.
Wherein, semi-permeable ecological weir 4, the construction method of the ecological weir 5 of infiltration are as follows：
The ecological weir 5 of infiltration：The earthwork between swag not at the same level is dug out and smooth pool bottom, the dam foundation is poured using armored concrete
18 and weir side wall 19, it is sequentially arranged infiltration 5 each layers of structure of ecological weir.Ecological pad layer 13 is finally covered on dam structure
And it is biological to plant aquatic and/or humidogene.
Semi-permeable ecology weir 4：Processing of shutting off is carried out to main stem 1 in engineering section first, river water is arranged by diversion channel
To engineering section downstream.It is needing to build the dykes and dams at semi-permeable ecological weir 4 between excavation swag and main stem 1, smooth substrate
And the pouring reinforcement concrete dam foundation 18 and weir side wall 19, while pour the first permeable wall 12, using Sand-free permeable concrete
Two permeable walls 16 enhance dam structure and water penetration, remaining each layer is laid with identical with the ecological weir 5 of infiltration.
Flood in flood period, river main stem can pass through semi-permeable weir inverse osmosis to alluvial flat wet land system
In, enhance river flood discharge capacity.Simultaneously because flood mostly enters Wetlands buffering by osmosis, in main stem suspended matter and
The amount that floating material enters wetland will also greatly reduce.Alluvial flat wetland swag system flood period have receive storage, filtering flood, carry
The effect of high main stem flood discharge capacity.In the period when a river is at its normal level and dry season, can main stem ecological matrix ensured according to swag water quality situation
It is drawn water on the basis of stream using water pump from main stem into highest swag, strengthens water body fluid ability, form recyclable river
Road --- alluvial flat wetland swag system ensures wet land water quality.Meanwhile in the period when a river is at its normal level by pumping for water pump, which can become
Purify the important place of main stem river water.In addition, multistage swag system can also enter river by purifying face source runoff decreased
In pollutant.
The alluvial flat wetland swag system of the utility model is intended to build a kind of alluvial flat with preferable hydrology connectivity
Wetlands buffering swag system.Wherein, swag at the same level is connected with the ecological branch of a river, is led between swag and swag and main stem not at the same level
It crosses infiltration dam with semi-permeable dam to be connected, whole system is made to be provided simultaneously with improving river flood discharge capacity, water body self-purification ability and landscape
The characteristics of effect.After this alluvial flat wetland swag system structure, have the positive effect that：
First, by semi-permeable dam and the horizontal infiltration on infiltration dam, the water of river main stem and alluvial flat wetland can be strengthened
Literary connectivity improves the ability and main stem flood discharge capacity of wetland Na Xuhongshui, has certain water resource analysis.In flood period
Can preferable Na Xuhongshui, effective flood peak clipping reduces threat of the flood to lower reaches of river.Joined by the longitudinal direction of the ecological branch of a river
System, it is ensured that the hydrology and biological state systems exchange ability between swag at the same level have certain ecological functions.
Secondly, can stream self-purification ability be improved by alluvial flat wetland purification main stem river water in the period when a river is at its normal level.Permeate dam
Catharsis show river water laterally circulation on.River water first passes around filtering and the interception function of gravel in process of osmosis,
Suspended particulate substance in water body greatly reduces, and after water-purifying material layer is entered by permeable wall, occurs in zeolite filler first
Nitration reaction travels further into the absorption of generation anti-nitration reaction and phosphorus after biologic packing material layer, greatly reduces the nitrogen in water body
The pollutants such as phosphorus.
Finally, alluvial flat swag can rationally be set swag position and plant landscape plant according to landscape effect demand.In river
After the completion of overbank swag system structure, can be had according to the suitable humidogene of requirement of engineering and situation selection on the spot and water plant
Certain landscape function.
Finally it should be noted that:Above example is only to illustrate the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to preferred embodiment, those of ordinary skill in the art should
Understand：It can still modify to specific embodiment of the present utility model or some technical characteristics are equally replaced
It changes；Without departing from the spirit of technical solutions of the utility model, should all cover in the claimed technical solution of the utility model
In range.
Claims (9)
1. a kind of alluvial flat wetland swag system, it is characterised in that：Including being arranged on alluvial flat close to the one of river main stem (1)
Grade swag unit and at least level-one is arranged on the secondary swag unit on the outside of the level-one swag unit, the level-one swag list
Member includes at least two level-one swags (2) being connected by the ecological branch of a river (7), and every level-one of the secondary swag unit includes
At least two secondary swags (3) being connected by the ecological branch of a river (7), the level-one swag (2), secondary swag (3) bottom
Height increases successively outward from main stem (1), passes through semi-permeable ecological weir between the level-one swag (2) and main stem (1)
(4) it is connected, is connected between the swag of different stage by permeating ecological weir (5), passed through between the swag of same levels
The ecological branch of a river is connected to swag unit.
2. alluvial flat wetland swag system according to claim 1, it is characterised in that：The semi-permeable ecological weir (4)
For trapezium structure, the dam body gradient towards main stem (1) is identical with main stem (1) river levee gradient, towards the dam of level-one swag (2)
The body gradient is gentle slope structure.
3. alluvial flat wetland swag system according to claim 2, it is characterised in that：The semi-permeable ecological weir (4)
The shore protection lattice of the dam foundation (18) both sides are arranged on including the intrabasement dam foundation of intrenched stream dike (18), parallel main stem (1) direction
Guest's gabion (8), vertical main stem (1) direction be arranged on the side wall (19) of the dam foundation (18) both sides, be covered in it is described semi-permeable
Ecological bed course (13) on the outside of ecological weir (4), nearly main stem (1) side is equipped with the first permeable wall on the dam foundation (18)
(12), remote main stem (1) side is equipped with the second permeable wall (16), first permeable wall (12) and second on the dam foundation (18)
Bank protection gabion is both provided on the outside of permeable wall (16), filled with net between first permeable wall (12) and the second permeable wall (16)
Water material layer.
4. alluvial flat wetland swag system according to claim 3, it is characterised in that：The shore protection lattice guest gabion (8)
Highly it is the 1/3 of dam body height；First permeable wall (12) and dam crest are contour, the second permeable wall (16) and river period when a river is at its normal level water
Position is equal；The thickness of the dam foundation (18) is identical with the river low water level depth of water；The storm pavement of first permeable wall (12) side
Cage height is identical with the first permeable wall (12) height, the bank protection gabion height of the second permeable wall (16) side and second permeable
Wall (16) height is identical.
5. alluvial flat wetland swag system according to claim 3, it is characterised in that：The bank protection gabion include from lower and
On the cobble gabion (9), big grain size gravel gabion (10), the small particle gravel gabion (11) that set gradually.
6. alluvial flat wetland swag system according to claim 3, it is characterised in that：The water-purifying material layer includes setting
Boulder bed (17) on the dam foundation (18), the zeolite layer (15) being arranged on boulder bed (17) and by the zeolite layer
(15) it is wrapped in interior center gabion (14).
7. alluvial flat wetland swag system according to claim 1, it is characterised in that：The ecological weir (5) of infiltration is wrapped
Include the intrabasement dam foundation of intrenched stream dike (18), parallel main stem (1) direction is arranged on the shore protection lattice guest of the dam foundation (18) both sides
Gabion (8), vertical main stem (1) direction are arranged on the side wall (19) of the dam foundation (18) both sides, are covered in the infiltration ecology
Ecological bed course (13) on the outside of weir (5), both sides are provided with bank protection gabion, the bank protection gabion inside on the dam foundation (18)
Filled with water-purifying material layer.
8. alluvial flat wetland swag system according to claim 3, it is characterised in that：The level-one swag (2), secondary hole
Kind is implanted with hygrophyte and/or water plant in the pool (3), and hygrophyte and/or water are also planted on the ecology bed course (13)
Plant.
9. alluvial flat wetland swag system according to claim 1, it is characterised in that：The river main stem (1) is with coming
It is connected between the secondary swag (3) of first afterbody by aqueduct (6) on water direction, the river main stem
(1) it is connected between the last one level-one swag (2) on inflow direction by the ecological branch of a river (7).
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107386196A (en) * | 2017-09-11 | 2017-11-24 | 北京东方园林环境股份有限公司 | A kind of alluvial flat wetland swag system and its construction method |
| CN111335249A (en) * | 2020-02-13 | 2020-06-26 | 浙江万里学院 | Mountain area flood control retaining transports distribution system |
| CN114946741A (en) * | 2022-06-21 | 2022-08-30 | 中国水产科学研究院渔业机械仪器研究所 | Species pool method for recovering fish biodiversity |
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2017
- 2017-09-11 CN CN201721154986.3U patent/CN207498888U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107386196A (en) * | 2017-09-11 | 2017-11-24 | 北京东方园林环境股份有限公司 | A kind of alluvial flat wetland swag system and its construction method |
| CN111335249A (en) * | 2020-02-13 | 2020-06-26 | 浙江万里学院 | Mountain area flood control retaining transports distribution system |
| CN114946741A (en) * | 2022-06-21 | 2022-08-30 | 中国水产科学研究院渔业机械仪器研究所 | Species pool method for recovering fish biodiversity |
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