CN109729967A - A kind of ecology weir - Google Patents
A kind of ecology weir Download PDFInfo
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- CN109729967A CN109729967A CN201910208864.5A CN201910208864A CN109729967A CN 109729967 A CN109729967 A CN 109729967A CN 201910208864 A CN201910208864 A CN 201910208864A CN 109729967 A CN109729967 A CN 109729967A
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- weir
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
Abstract
The embodiment of the invention provides a kind of ecological weir, the structure and plant biological bag formed using load-bearing grid, water blocking grid and fixed skeleton stacks the centipede space structure to be formed, and overcomes the shortcomings that frost heave shrinkage destroys ecological weir weir body；Permeable sand can reduce destruction of the water flow to ecological weir weir body, while preventing sediment siltation and extending ecological weir weir body life time；Plant biological bag is filled in fixed skeleton, and transplants multicolour shrub inside and outside it, builds out ecoscape weir body；There is on the body of ecological weir weir and in the growth belt of locating channel according to the Seasonal dynamics change feature plant of plant color the plant of " spring, summer, autumn and winter " Various Seasonal speciality, build landscape ribbon.
Description
Technical field
The present invention relates to low mountains and hills soil erosion erosion groove Treatment process field more particularly to a kind of ecological weirs.
Background technique
Erosion groove improvement mostly uses stone masonry or loose stone weir body to be administered.In the north since the frost heave of spring and autumn is cold
Contracting circulation frequently result in weir body be deformed with crack and cause weir body damage.Most of stone material do/is grouted without permeable
Property, while having the shortcomings that stop the continuity of water flow mud-sand cooperative motion and abiotic, do not meet ecological recovery needs.
Since water pollution is got worse, erosion groove improvement enters the restoration of the ecosystem epoch.In order to meet Times ' Demand, send out
The modified forms weir bodies such as a variety of environmental or types that purify water are illustrated.But existing modified weir body still has a single function, and is only capable of going
Make the function of sediment trapping alluvial plain, once ulceration is not easily repaired, management service is difficult, and has because sediment siltation obstruction weir body causes only
Change the disadvantage of the forfeiture of the ecological functions such as water quality, landscape effect difference, and then influences weir body life time.
Summary of the invention
The object of the present invention is to provide it is a kind of be both able to satisfy maintain channel water flow mud-sand cooperative motion rule, have compared with
Long life, and can be constructed the ecological weir weir body that the channel fallen into disuse builds a beautiful landscape ribbon using vegetation color
Technology.
The present invention in order to solve the above-mentioned technical problem, the technical solution taken are as follows: a kind of ecology weir, including being located at bottom
Load-bearing grid, the water blocking grid on the load-bearing grid, fixed skeleton and plant biological bag；
Further, plane where the water blocking grid is perpendicular to plane, the water blocking grid where the load-bearing grid
Top margin both sides relatively parallel with the load-bearing grid be connected separately with bracket, the bracket forms fixed skeleton；
Further, it is uniformly equipped with plant biological bag on the load-bearing grid, the plant biological bag stacks form pile from bottom to up
Body, the centipede space are adapted with the fixed skeleton, and the fixed skeleton and the centipede space correspond, the ratio drop of the centipede space
And the ratio drop of the fixed skeleton is consistent；
Further, fertile soil and vegetable seeds and/or seedling are filled in the plant biological bag, the bag body of the plant biological bag is
Geotextiles；
Further, further include channel, several ecological weirs are provided in the channel；The both ends of the water blocking grid are set
There is extension block；In the two sidewalls of the extension block insertion channel；
Further, multiple plant biological bags stacked along the trench sidewalls form centipede space, and the centipede space includes several；
It further, further include growth belt in the channel, the growth belt is located at the channel upstream and downstream where ecological weir
Between place and/or ecological weir weir body；
Further, the growth belt includes arbor, shrub and herbal at least one for planting；
Further, the arbor includes midget crabapple, apricot, Japanese plum, fragrant flower Chinese scholar tree, lilac, smoke tree, acer truncatum and oil
At least one of pine；
Further, the shrub includes at least one of Fructus Forsythiae, weigela florida, sea-buckthorn, tatarian dogwood and Sabina vulgaris Ant；
Further, the herbaceous plant includes at least one of day lily, sheep's hay and clover；
Further, jackstone is equipped in the preset range of the external side in the ecological weir.
The beneficial effects of the present invention are: utilizing the structure and plant biological bag of load-bearing grid, water blocking grid and fixed skeleton formation
The centipede space structure formed is stacked, the shortcomings that frost heave shrinkage destroys ecological weir weir body is overcome；Permeable sand can reduce water flow pair
The destruction of ecological weir weir body, while preventing sediment siltation and extending ecological weir weir body life time；Plant biological bag is filled in fixed skeleton,
And multicolour shrub is transplanted inside and outside it, build out ecoscape weir body；In growth belt between the body of ecological weir weir and between centipede space
There is the plant of " spring, summer, autumn and winter " Various Seasonal speciality according to the Seasonal dynamics change feature plant of plant color, build landscape and float
Band.
Detailed description of the invention
Fig. 1 is a kind of Longitudinal cross section schematic on ecological weir of the present invention.
Fig. 2 is a kind of side schematic view on ecological weir of the present invention.
Fig. 3 is a kind of schematic top plan view on ecological weir of the present invention.
Fig. 4 is a kind of detailed schematic of longitudinal section one on ecological weir of the present invention.
Fig. 5 is a kind of another detailed schematic of longitudinal section on ecological weir of the present invention.
Fig. 6 is an a kind of detailed schematic of the vertical view on ecological weir of the present invention.
Fig. 7 is a kind of schematic diagram of the one embodiment on ecological weir of the present invention.
Fig. 8 is a kind of schematic diagram of another embodiment on ecological weir of the present invention.
In attached drawing: 1, load-bearing grid；2, water blocking grid；3, fixed skeleton；4, growth belt；5, plant biological bag；6, centipede space；7, prolong
Long block；8, jackstone；9, herbaceous plant；10, shrub；11, Gou Po；12, channel；13, plant biological bag long side；14, arbor.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
Referring to Fig.1, a kind of ecological weir, comprising: the load-bearing grid 1 positioned at bottom, the water blocking on the load-bearing grid 1
Grid 2, fixed skeleton 3 and plant biological bag 5.
Referring to Fig. 2, the 2 place plane of water blocking grid is perpendicular to the 1 place plane of load-bearing grid, the water blocking grid
The 2 top margin both sides relatively parallel with the load-bearing grid 1 are separately connected equipped with bracket, and the bracket connects the water blocking grid
2 and the load-bearing grid 1 form fixed skeleton 3, on side view angle of field, the fixed skeleton 3 interconnected is held with described
1 triangular shape of weight grid.
In a kind of preferable example, the bracket is steel pipe, and the load-bearing grid 1 and the water blocking grid 2 are steel.
Referring to Fig. 5, it is uniformly equipped with plant biological bag 5 on the load-bearing grid 1, the plant biological bag 5 stacks formation from bottom to up
Centipede space 6, the centipede space 6 are adapted with the fixed skeleton 3, and the fixed skeleton 3 is corresponded with the centipede space 6, the pile
The ratio of body 6 drops and the ratio of the fixed skeleton 3 drop is consistent；The centipede space 6 formed by stacking plant biological bag 5, in several centipede spaces 6
Any one centipede space 6 has compatible fixed skeleton 3 therewith, and the fixed skeleton 3 is for fixing its corresponding centipede space 6.
In an alternative embodiment of the invention, fertile soil and vegetable seeds and/or children are filled in the plant biological bag 5
Seedling, the bag body of the plant biological bag 5 are geotextiles.
It in an alternative embodiment of the invention, referring to Fig.1 and Fig. 6, further include channel 12, setting in the channel 12
There are several ecological weirs；The both ends of the water blocking grid 2 are equipped with extension block 7, and the extension block 7 is embedded in the two sidewalls of channel 12
In.
In an alternative embodiment of the invention, multiple plant biological bags 5 stacked along 12 side wall of channel are formed flat
For row in the centipede space 6 of 12 side wall of channel, the centipede space 6 includes several.
It in an alternative embodiment of the invention, referring to Figure 1 and Figure 3, further include growth belt 4, institute in the channel 12
It states at 12 upstream and downstream of channel where growth belt 4 is located at ecological weir and/or between the body of ecological weir weir；When in channel 12 only one
When ecological weir, growth belt 4 is located at the upstream and/or downstream on the ecology weir；When there is more than one ecological weir in channel 12, plantation
It further include channel paragraph between ecological weir with 4.
In an alternative embodiment of the invention, plantation includes that arbor 14, shrub 10 and draft are planted in the growth belt 4
At least one of object 9.
In an alternative embodiment of the invention, the arbor 14 includes midget crabapple, apricot, Japanese plum, fragrant flower Chinese scholar tree, purple
At least one of cloves, smoke tree, acer truncatum and Chinese pine.
In an alternative embodiment of the invention, the shrub 10 includes Fructus Forsythiae, weigela florida, sea-buckthorn, tatarian dogwood and sand
At least one of ground cypress.
In an alternative embodiment of the invention, the herbaceous plant 9 include day lily, sheep's hay and clover at least
It is a kind of.
In an alternative embodiment of the invention, it is equipped in the preset range of the external side, that is, bottom of trench in the ecological weir
Jackstone 8.
In a kind of preferable example, jackstone 8 is laid within the scope of 0-3m, the jackstone 8 is the stone of partial size 150-400mm.
In one preferred embodiment of the invention, it is preferably chosen bottom of trench and bank slope landform, geology (soil property) situation is good
Good, easy-clear invariably stone riprap sundries, and bottom of trench is greater than the ditch section of 5%-10% than dropping, and finds the regional construction of " the small tripe of mouth is big "
Ecological weir；Stone riprap sundries cleaning is carried out after selection area to it, load-bearing grid 1 is laid on to the bottom of channel 12, load-bearing grid 1
It is laid with along water (flow) direction；Referring to Fig. 2, turn left from the right side as the direction of water flow.Towards upstream side, first touches water flow and be
Meet water side (face), towards downstream side, after touch water flow is backwater side (face)；(vertical height: level is long than drop for upstream face
Degree) it should be less than being equal to 1:2, if back side water discharged amount is larger, to prevent the naughty erosion to ecological weir weir body substrate, the ratio drop of back side
Also it should be less than being equal to 1:2, so that the ratio drop of the centipede space 6 and the ratio drop of the fixed skeleton 3 are consistent.
The both ends of water blocking grid 2 are equipped with extension block 7, excavation appropriate and backfill are carried out to channel 12, by water blocking grid 2
Left and right ends there are extension block 7 carry out burial fixation so that extension block 7 is embedded in the side wall of channel 12, increase stability；
Meet water from the top margin of water blocking grid 2 to the relatively parallel both sides of load-bearing grid 1 while and when backwater be respectively welded steel pipe, steel pipe
It connects the water blocking grid 2 and the load-bearing grid 1 forms fixed skeleton 3, on side view angle of field, the steel interconnected
Pipe and 1 triangular shape of load-bearing grid.
Preferably, plant biological bag 5 is uniformly equipped on load-bearing grid 1, plant biological bag 5 stacks form centipede space 6, pile from bottom to up
Body 6 is adapted with fixed skeleton 3, and fixed skeleton 3 is corresponded with centipede space 6, i.e., the centipede space 6 formed by stacking plant biological bag 5, institute
State centipede space 6 include several, any one centipede space 6 in several centipede spaces 6 have therewith compatible steel pipe form fixed bone
Frame 3；Referring to Fig. 2, consistent, i.e., the side of steel pipe and load-bearing grid 1 interconnected drops in the ratio drop of centipede space 6 and the ratio of fixed skeleton 3
View triangular shape, the side view of the centipede space 6 for stacking formation and load-bearing grid 1 also triangular shape；Load-bearing grid 1, water blocking
Grid 2 and reinforce that skeleton 3 is mating in groups with centipede space 6, each centipede space 6 corresponds to load-bearing grid 1, one on water blocking grid 2
To grid, this is approximately equal to the 1/2-2/3 that plant biological bag 5 is in contact with it side plant biological bag long side 13 to the width of grid；Due to water blocking
Grid 2 stacks from bottom to top, from inside to outside perpendicular to load-bearing grid 1, the stacking needs of centipede space 6, and water blocking lattice are close in inside
Grid 2 make the centipede space 6 stacked out more consistent than dropping than dropping the fixation skeleton 3 formed with steel-pipe welding as far as possible；Preferably, when stacking
Enable the long side of plant biological bag 5 perpendicular to water (flow) direction；Stacked offset plant biological bag 5 up and down can be aided with before and after plastics connection buckle, increased
The stability of centipede space 6.
Preferably, referring to Fig.1, channel 12 is in the isosceles trapezoid of handstand shape, in this implementation example in the isosceles ladder of handstand shape
Shape, but be not limited to the isosceles trapezoid in handstand shape, specific channel 12 can difference as the case may be, there is different shape,
The present embodiment is preferably in the isosceles trapezoid of handstand shape；I.e. the side wall of channel 12 forms ditch slope 11, in the most left and rightmost side, is close to
The ditch slope 11 stacks plant biological bag 5 and forms centipede space 6, and the centipede space 6 is adapted with the ditch slope 11 in handstand shape right-angled trapezium, base
It is symmetrical arranged in water (flow) direction, the ditch slope 11 for being effectively prevented left and right is etched.
It preferably, further include growth belt 4 in the channel, the growth belt 4 is located at about 12 channel where ecological weir
Between the body of at trip and/or ecological weir weir, when only one ecological weir in channel 12, growth belt 4 is located at the upstream on the ecology weir
The downstream and/or；When there is more than one ecological weir in channel 12, growth belt 4 further includes the channel paragraph between ecological weir.
Preferably, referring to Fig.1, in Longitudinal cross section schematic, the gap width b between two adjacent centipede spaces 6 needs to meet
Gap width constraint: 1≤b/Dmax< 1.5~2.0
Wherein, DmaxFor the gravel diameter of stone maximum in the weir body upstream channel.
Meanwhile the ratio of the summation ∑ b of all gap widths and entire weir body width B need to meet
Gap constraint: ∑ b/B=0.2~0.6
When disposing the ecological weir in a manner of group, the different weir bodies of upstream and downstream, the relative slot width between centipede space 6
The principle of " upstream gap rate is big, and downstream voidage is small " need to be met, that is, met:
Gap width constraint: bOn/DOn max> bUnder/DUnder max
Gap constraint: ∑ bOn/BOn> ∑ bUnder/BUnder
Wherein, bOnFor 6 gap widths of centipede space of upstream weir body, DOn maxFor in its upstream channel corresponding to the body of upstream weir most
The gravel diameter of ratchel, bUnderFor 6 gap widths of centipede space of downstream weir body, DUnder maxFor the channel between downstream weir body and upstream weir body
The gravel diameter of maximum stone in 12 paragraphs.
It preferably, is from top to bottom the direction of water flow referring to Fig. 3, the weir body formed by the combination of multiple centipede spaces 6, tight
By ecological weir weir, body meets water, in the channel 12 of back side on ground, and jackstone 8 is laid within the scope of 0-3m, can effectively prevent
Weir body base portion is by water erosion.
And can plant in growth belt 4 and be divided into channel 12 according to the Seasonal dynamics change feature of plant color " spring, the summer, the autumn,
It transplants following plant respectively in growth belt 4 as shown in table 1, builds the landscape with seasonal characteristic and float in four regions of winter "
Band
Table 1 is plantation table.
Preferably, in the method for the intracorporal planting in weir:
Wherein in plant biological bag 5 equal equal proportion mixing clover, sheep's hay, day lily seed；And meeting close to ecological weir weir body
The plant biological bag 5 of waterside and the outermost side section in backwater side then on the basis of three kinds of herbaceous plant 9 in the above table 1, then transplants one
Strain 10 seedling of shrub, kind are selected from above-mentioned plant；Preferably, 10 spacing in the rows 0.5-1.5m of shrub ensures as far as possible between each centipede space 6
Gap, meet water while and when backwater can respectively plant one plant of shrub 10.
Ecological weir weir body meet water while and 12 ground of outside channel when backwater on plant shrub 10, it is preferable that shrub
10 spacing in the rows 0.5-1.5m can transplant several rows, row and row spacing 0.5-1.5m, dislocation plant；It can be broadcast on gap in shrub 10
9 seed of herbaceous plant or seedling are spread, shrub 10 and 9 kind of herbaceous plant are selected from above-mentioned plant.
Preferably, in 4 implants implantation methods of growth belt:
The implantation methods of arbor 14: referring to Fig. 7, if when 4 width w >=5m of growth belt, choosing one of the above or several arbors
14, arbor 14 is planted side by side in left and right sides bottom of slope, and unilateral 14 spacing of arbor is 2-3m；When more tree species mixed plantings, using wheel
The sequence of plantation is flowed, left side and right side sequentially misplace once in tree species；Referring to Fig. 8, if when 4 width 2m≤w < 5m of growth belt,
Then arbor 14, projected position and right side arbor of the arbor 14 in 4 left side of growth belt on right side are staggeredly planted in left and right sides bottom of slope
14 spacing remains as 2-3m, if more tree species mixed plantings, takes permanent order, the right advance of a first from left along the trend of growth belt 4
It alternately plants on ground；If 4 width w < 2m of growth belt, it is not suitable for planting arbor 14.
The implantation methods of shrub 10: when 4 width w >=2m of growth belt, one of the above or several shrubs 10 is chosen, list is planted in
Between side arbor 14, wherein left and right sides bottom of trench all needs to plant；When multi items mixed planting, using the sequence planted in turn, but
With the shrub 10 on right side without the plantation that misplaces, guarantee arrangement uniformity, visual appearance on the left of being；According to 10 adult of shrub
Plant type size, 10 spacing in the rows of shrub are set as 0.5-1.5m, between shrub 10 and the spacing one between shrub 10 and arbor 14
It causes.When 4 width w < 2m of growth belt, it is not suitable for planting shrub 10.
9 implantation methods of herbaceous plant: one of the above or several herbaceous plant 9 are chosen, seed or seedling are sowed in arbor
14, between the gap of shrub 10；Or it directly sows on the bottom of trench of channel 12.
While building ecological weir, the growth belt 4 in channel 12 carries out planting.It, will according to designed scheme
Meet the tall shrub plantation of difference in spring, summer, autumn, winter in the two sides of the different paragraphs of channel 12, forms the landscape with ornamental value
Ribbon.
Present invention additionally contemplates that the aspect beautified in rill erosion repair to landscape.By being equipped with vegetable seeds
Plant biological bag 5 and tall grass-shrub vegetation of the collocation with Seasonal dynamics change in growth belt 4, have both reached the function using plant fixing soil
Can, and landscape ribbon is formd, increase the appreciative value of landscape in channel 12.Used vegetation kind has higher economy
Benefit helps to build beautiful rural area, promotes the development of regional ecotourism, the income for increasing peasant is shaken off poverty as early as possible；This
The ecological weir body design of outer permeable husky formula ensure that the water-sediment movement under normal flow amount, extend the use of ecological weir weir body
Service life.
Beneficial effects of the present invention: the structure and plant biological bag formed using load-bearing grid 1, water blocking grid 2 and fixed skeleton 3
5 stack 6 structure of centipede space formed, overcome the shortcomings that frost heave shrinkage destroys ecological weir weir body；Permeable sand can reduce water flow
Destruction to ecological weir weir body, while preventing sediment siltation and extending ecological weir weir body life time；Life is planted in filling in fixed skeleton 3
Bag 5, and multicolour shrub is transplanted inside and outside it, build out ecoscape weir body；Kind in the weir body on ecological weir and between centipede space 6
The plant in band 4 according to the Seasonal dynamics change feature plant of plant color with " spring, summer, autumn and winter " Various Seasonal speciality is planted, is built
Landscape ribbon.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.
Although the preferred embodiment of the embodiment of the present invention has been described, once a person skilled in the art knows bases
This creative concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted as
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements not only wrap
Those elements are included, but also including other elements that are not explicitly listed, or further includes for this process, method, article
Or the element that terminal device is intrinsic.In the absence of more restrictions, being wanted by what sentence "including a ..." limited
Element, it is not excluded that there is also other identical elements in process, method, article or the terminal device for including the element.
It above to a kind of ecological weir provided by the present invention, is described in detail, specific case pair used herein
The principle of the present invention and embodiment are expounded, method of the invention that the above embodiments are only used to help understand
And its core concept；At the same time, for those skilled in the art, according to the thought of the present invention, in specific embodiment and
There will be changes in application range, in conclusion the contents of this specification are not to be construed as limiting the invention.
Claims (10)
1. a kind of ecology weir characterized by comprising the load-bearing grid positioned at bottom, the water blocking on the load-bearing grid
Grid, fixed skeleton and plant biological bag；
Plane where the water blocking grid is held perpendicular to plane, the top margin of the water blocking grid where the load-bearing grid with described
The relatively parallel both sides of weight grid are connected separately with bracket, and the bracket forms fixed skeleton；
Plant biological bag is uniformly equipped on the load-bearing grid, the plant biological bag stacks form centipede space from bottom to up, the centipede space with
The fixed skeleton is adapted, and the fixed skeleton and the centipede space correspond, ratio drop and the fixed bone of the centipede space
The ratio drop of frame is consistent.
2. ecology weir according to claim 1, which is characterized in that be filled with fertile soil and vegetable seeds in the plant biological bag
And/or seedling, the bag body of the plant biological bag are geotextiles.
3. ecology weir according to claim 1, which is characterized in that further include channel, be provided with several in the channel
Ecological weir；The both ends of the water blocking grid are equipped with extension block, and the extension block is embedded in the two sidewalls of channel.
4. ecology weir according to claim 3, which is characterized in that multiple plant biological bag shapes stacked along the trench sidewalls
At centipede space, the centipede space includes several.
5. ecology weir according to claim 3, which is characterized in that it further include growth belt in the channel, the growth belt
At the channel upstream and downstream where ecological weir and/or between the body of ecological weir weir.
6. it is according to claim 5 ecology weir, which is characterized in that the growth belt for plant include arbor, shrub and
Herbal at least one.
7. ecology weir according to claim 6, which is characterized in that the arbor includes midget crabapple, apricot, Japanese plum, perfume (or spice)
At least one of Hua Huai, lilac, smoke tree, acer truncatum and Chinese pine.
8. ecology weir according to claim 6, which is characterized in that the shrub includes Fructus Forsythiae, weigela florida, sea-buckthorn, red auspicious
At least one of wood and Sabina vulgaris Ant.
9. ecology weir according to claim 6, which is characterized in that the herbaceous plant includes day lily, sheep's hay and clover
At least one of.
10. ecology weir according to claim 1, which is characterized in that spread in the preset range of the external side in the ecological weir
Equipped with jackstone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910208864.5A CN109729967B (en) | 2019-03-19 | 2019-03-19 | Ecological weir |
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|---|---|---|---|
| CN201910208864.5A CN109729967B (en) | 2019-03-19 | 2019-03-19 | Ecological weir |
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| CN109729967B CN109729967B (en) | 2022-03-01 |
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| CN107794884A (en) * | 2017-11-08 | 2018-03-13 | 大连汇洋船务工程配套有限公司 | A kind of net formula water surface safety barrage system |
| CN207435997U (en) * | 2017-11-08 | 2018-06-01 | 王仲伟 | A kind of hydraulic engineering slope wall |
| CN109113032A (en) * | 2018-09-27 | 2019-01-01 | 华北电力大学 | A kind of removable river sediment trapping weir of ecological type |
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