CN108547254A - A kind of river channel ecology shore protection and its construction method - Google Patents
A kind of river channel ecology shore protection and its construction method Download PDFInfo
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- CN108547254A CN108547254A CN201810336850.7A CN201810336850A CN108547254A CN 108547254 A CN108547254 A CN 108547254A CN 201810336850 A CN201810336850 A CN 201810336850A CN 108547254 A CN108547254 A CN 108547254A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
- E02B3/122—Flexible prefabricated covering elements, e.g. mats, strips
- E02B3/123—Flexible prefabricated covering elements, e.g. mats, strips mainly consisting of stone, concrete or similar stony material
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/30—Flood prevention; Flood or storm water management, e.g. using flood barriers
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- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
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- Environmental Sciences (AREA)
- Revetment (AREA)
Abstract
A kind of river channel ecology shore protection and its construction method, including infiltration adsorption filter layer, timber spats, gabion baffling, bed mud ecology bag layer and vegetable layer, infiltration adsorption filter layer is arranged in the joining place in river bank slope and riverbed, and infiltration adsorption filter layer includes two layers of pervious concrete layer and adsorption filter layer；Sheet pile spats bottom end is embedded in close in the riverbed at infiltration adsorption filter layer bottom step outer；Gabion baffling includes objective case net cage and supporter；If bed mud ecology bag layer is made of dry course ecology bag；Vegetable layer is made of soil horizon and vegetation net；The construction method includes the following steps：On riverbank, the step slope surface of slope surface is laid with infiltration adsorption filter layer, gabion baffling and vegetable layer successively, and timber spats is embedded at slope foot.The beneficial effects of the invention are as follows：Ensure that water body fully exchanges, the pollutants such as N, P, heavy metal in effective adsorbed water body, while ensuring itself stronger erosion resistibility, there is good durability and applicability.
Description
Technical field
The present invention relates to a kind of river channel ecology shore protection and its construction methods.
Background technology
Ecological revetment refers to the structure combined with earth working material using plant or plant, one protected river slope surface
Kind slope protection form, is a kind of artificial shore protection with nature riverbank property, other than preventing riverbank from caving in, also there is flood detention to mend
The functions such as withered, adjusting water level, purification river, the River Landscape that phase is coordinated is formed with ambient enviroment.Synthesis apparently, protect by the ecotype
Bank is the improvement of traditional revetment, is product of the river engineering discipline development to opposite advanced stage, is modern's craving and oneself
The needs so got along amiably and peacefully, it is the inevitable outcome of bank-protection works technology development and progress.
On the other hand, the mud that river bed is largely deposited seriously affects the Regulation Function of flood control, shipping and water body.Furthermore greatly
The pollutant of amount is enriched in bed-silt, if mud is disturbed, some of the contaminants may among deposit returns to river water,
Lasting influence is caused to waters.Meanwhile containing the substances such as N, P element needed for a large amount of plant growths, profit in bed-silt again
Use mud that there is higher economy and feasibility as the raw material for cultivating plant growth.
The patent of Publication No. 103061310B is a kind of novel ecological habitat shore protection, is built by laying bricks or stones by block stone layer layer and forms life
State inhabites area, the access way using the inside and outside water service pipe of connection as aquatic animal, but the shore protection is still largely mixed using reinforcing bar
The original natural ecosystems in river are had certain destruction by the earth working materials such as solidifying soil, building block.
The patent of Publication No. 203890955U is that a kind of ecological revetment plants raw structure, using alloy-steel wire cage body in river
The joining place in bank slope and riverbed, which is successively piled up, to be formed step-like, plant pad is placed inside alloy steel cage body, plant pad includes base
Matter and different types of plant roots and stems or seedling, but the structure is big by water hammering effects, soil body matrix and plant inside cage body
Seedling is easily destroyed by water impact, and soil particle can be lost in flow, and water body purification is less efficient.
Invention content
In order to solve the problems, such as that traditional shore protection technology and current part ecological revetment technology erosion resistibility are weaker
Or cleaning water it is not high the problems such as, it can be aquatic that the present invention, which proposes a kind of river channel ecology shore protection and its construction method, the structure,
Biology provides the space inhabited with breeding, can ensure that riverbank is exchanged with the sufficient water body in river, can be in effective adsorbed water body
N, the pollutants such as P, heavy metal, while the flexible structural system of the shore protection ensures itself stronger erosion resistibility, has good
Good durability and applicability.
A kind of river channel ecology shore protection of the present invention, it is characterised in that：Including infiltration adsorption filter layer, timber spats,
Gabion baffling, bed mud ecology bag layer and vegetable layer, the infiltration adsorption filter layer are arranged in the linking in river bank slope and riverbed
Place, infiltration adsorption filter layer form the first staged dike that can be bonded with the step surface of river bank slope along shore protection slope surface from bottom to top
Bank inclined slope, the suction for permeating adsorption filter layer and including inside and outside two layers of pervious concrete layer and being clipped between two pervious concrete layers
Attached filter layer, adsorption filter layer be filled between two layers of pervious concrete layer there are gap in；The timber spats is along infiltration
Adsorption filter layer bottom side edge is along close-packed arrays, and every timber spats bottom end is embedded in close to infiltration adsorption filter layer bottom step
In riverbed at outer；The gabion baffling includes stacking connected objective case net cage from bottom to top along the first staged embankment slope
And it is filled in the supporter in objective case net cage, wherein gabion baffling one side is matched with the first staged embankment slope slope surface,
Another side forms the second staged embankment slope for stacking bed mud ecology bag；If the bed mud ecology bag layer is by dry course
Ecology bag is constituted, and bottom ecology bag is stacked on the step surface on the second staged embankment slope, bottom bed mud ecology bag layer
Peak of the peak without departing from timber spats；The vegetable layer is made of soil horizon and vegetation net, and the soil horizon is covered in
Gap and its surface layer between gabion baffling top layer, bed mud ecology bag, side of the soil horizon towards riverbed are slope, the soil horizon
Surface grafting vegetation forms vegetation net, and the vegetation net is divided into aquatic plant from bottom to top according to the environment of planting soil layer
Object, ground cover plant and shrub.Timber spats timber spats timber spats
The pervious concrete layer is mixed by the coarse aggregate, Portland cement and water of interruption grade, thickness 20
~30mm, two layers totally, inner clip filter layer is tight with riverside slope face paste on one side, and the inner boundary of another side and gabion baffling is adjacent to, for shield
Water body provides infiltration lane inside and outside bank, and soil and filter layer play stable curing in opposite bank, prevent particle with flow stream
It loses.
The adsorption filter layer is layed between two layers of pervious concrete layer, 50~60mm of thickness, is granule, zeolite, broken
Layer structure made of lime stone and flyash are laid with, granule in the adsorption filter layer, zeolite, rubble lime stone and flyash
Volume ratio is 4:2:2:2.The granule grain size is 2~4cm, and the sized zeolite particles are 0.5~1cm, the broken limestone particle size
For 0.5~1cm, the flyash grain size is 0.5~300 μm, it is ensured that the elements such as N, P in effective adsorbed water body.
The timber spats is using timber insertion riverbed and close-packed arrays, and timber stake diameter is 160mm, the long 3m of stake, and timber
Top exceed bottom gabion baffling surface soil horizon timber spats.
The gabion baffling is in rectangular parallelepiped structure, is stacked step by step along slope surface by the cuboid gabion filled with supporter
It is formed by connecting；The gabion is made of the mesh sheet of the multiple twin shape, hexagon mesh that weave, upper layer net cage one third width
It is stacked on lower layer's net cage, stacks step by step, stepped is connected by steel wire lashing between adjacent net cage；Above support
For large-sized block of stone, the mixture of rubble, gravel and soil.
The bed mud ecology bag layer piled up by the ecology bag of the organic fertilizer needed for internal filling bed mud and plant growth and
It is to obtain after dredging and bed-silt soil after harmless treatment at, the bed mud.
The water plant includes thaliadeabata, raupo and/or mullet grass, and the ground cover plant includes Canna generalis, institute
It includes forsythia viridissima Lindl, photinia glabra and/or water cape jasmine to state shrub, and vegetation type is abundant, and shading item is provided for waters and surrounding enviroment
Part provides abundant habitat and food source for animals and plants, and the development of root system of plant plays what reinforcement consolidated to shore protection system again
Effect.
A kind of construction method of river channel ecology shore protection of the present invention, includes the following steps：
1) step arrangement is made in riverbed and riverbank slope surface intersection bank slope, forms it into step slope surface；
2) it is laid with first layer pervious concrete layer in the step slope surface of riverbank slope surface, plays leveling；
3) on the basis of first layer pervious concrete, it is laid with one layer of adsorption filter layer, for adsorbing in disengaging water body
N, P or heavy metal element, wherein adsorption filter layer are made of granule, zeolite, rubble lime stone and flyash；
4) second layer pervious concrete layer is re-layed on the basis of adsorption filter layer, plays leveling, and only allow water
The infiltration of body, prevents in bank that small size particle is lost in flow in soil body particle and filter layer；
5) after the completion of setting cushion, it will be filled with the cuboid gabion net of large-sized block of stone, rubble and gravel and soil
Case lifting is lifted to bed course one by one, and gabion is stacked along slope surface step by step, ultimately forms gabion baffling, is weakened water impact and is made
With and slow down flow rate of water flow, wherein the gabion is made of the mesh sheet of the multiple twin shape, hexagon mesh that weave, upper layer net cage
One third width is stacked on lower layer's net cage, is stacked step by step, stepped, is connected by steel wire lashing between adjacent net cage
It connects；
6) bed mud ecology bag is stacked on the step surface of gabion baffling, and fills soil toward the big gap between bed mud ecology bag
Earth forms soil horizon, and soil horizon slope leveling is acute angle with riverbed plane included angle, and soil horizon is arranged flat slope face and equidistantly buries wood
Appropriate cobble is placed at case, wooden case bottom, and sufficient space is provided for the growth and breeding of aquatic animals and plants and microorganism；
7) soil horizon is laid with vegetation net, and vegetation net is according to water level conditions planting aquatic plants, ground cover plant, shrub；
8) current scour erosion condition is typically more serious at slope foot, uses timber spats, timber spats embedding at slope foot
Enter in riverbed and adsorption filter layer bottom outer close-packed arrays are permeated on logical edge, soil horizon is higher by the top of timber, to reduce flow pair
Washing away to corroding timber spats timber spats at slope foot.
The beneficial effects of the invention are as follows：The silt soil that this shore protection is dredged using river bed as the nutrient of plant growth come
Source embodies environmentally protective, ecological circulation theory.Shore protection uses fabricated structure system, is provided for aquatile larger
Inhabit with breeding space, and give full play to that ecology bag is deformed and is consumed energy by water impact and gabion baffling structure is steady
Fixed characteristic enhances shore protection erosion resistibility, is suitable for the higher river of flow rate of water flow.This combined structure system gap is big,
Water penetration is good, ensure that the flowing and exchange of water body inside and outside shore protection.This ecological revetment is dual using vegetation and geotechnological filter layer
Filtering, filter effect are better than the ecological revetment of common form.
Description of the drawings
Fig. 1 is that the schematic cross-sectional view of this bank protection structure (represents peak level at A；Ordinary water level is represented at B).
Fig. 2 is the schematic top plan view of this bank protection structure.
Fig. 3 is gabion overall structure diagram.
Specific implementation mode
It further illustrates the present invention below in conjunction with the accompanying drawings
With reference to attached drawing：
A kind of river channel ecology shore protection of the present invention of embodiment 1, including infiltration adsorption filter layer 1, timber spats 2, stone
Cage barricade 3, bed mud ecology bag layer 4 and vegetable layer 5, the infiltration adsorption filter layer 1 are arranged in river bank slope 6 and riverbed 7
Joining place, infiltration adsorption filter layer 1 form the first rank that can be bonded with the step surface of river bank slope along shore protection slope surface from bottom to top
Ladder type embankment slope, the infiltration adsorption filter layer 1 include inside and outside two layers of pervious concrete layer 11 and are clipped in two pervious concretes
Adsorption filter layer 12 between layer, adsorption filter layer 12 be filled between two layers of pervious concrete layer 11 there are gap in；Institute
Timber spats is stated along infiltration adsorption filter layer bottom side edge along close-packed arrays, and every 2 bottom end of timber spats is embedded in close to infiltration
In riverbed 7 at adsorption filter layer bottom step outer；The gabion baffling 3 include along the first staged embankment slope from lower and
The upper supporter for stacking connected objective case net cage 31 and being filled in objective case net cage 3, wherein gabion baffling one side and first
The slope surface matching of staged embankment slope, another side forms the second staged embankment slope for stacking bed mud ecology bag；Institute
If stating bed mud ecology bag layer 4 to be made of dry course ecology bag, bottom ecology bag is stacked on the step on the second staged embankment slope
On face, the peak of the peak of bottom bed mud ecology bag layer without departing from timber spats 2；The vegetable layer 5 is by soil horizon 51
And vegetation net 52 forms, the soil horizon 51 is covered in gap and its surface layer between 3 top layer of gabion baffling, bed mud ecology bag, soil
51 side towards riverbed of layer are slope, and 51 surface grafting vegetation of the soil horizon forms vegetation net 52, the vegetation net 52
It is divided into water plant 521, ground cover plant 522 and shrub 523 from bottom to top according to the environment of planting soil layer.
The pervious concrete layer 11 is mixed by the coarse aggregate, Portland cement and water of interruption grade, thickness
20~30mm, two layers totally, inner clip filter layer, tightly formed with riverside slope face paste on one side it is ladder-like, another side and gabion baffling it is interior
Boundary is adjacent to.
The adsorption filter layer 12 is layed between two layers of pervious concrete layer, 50~60mm of thickness, be granule, zeolite,
Layer structure made of rubble lime stone and flyash are laid with, granule, zeolite, rubble lime stone and flyash in the adsorption filter layer
Volume ratio be 4:2:2:2.The granule grain size is 2~4cm, and the sized zeolite particles are 0.5~1cm, the broken limestone particle
Diameter is 0.5~1cm, and the flyash grain size is 0.5~300 μm.
The timber spats is using timber insertion riverbed and close-packed arrays, and timber stake diameter is 160mm, the long 3m of stake, and timber
Top exceed bottom gabion baffling surface soil horizon.
The gabion baffling 3 is in rectangular parallelepiped structure, by filled with the rectangular of large-sized block of stone, rubble, gravel and soil
Body gabion is formed by connecting along slope surface stacking step by step；The gabion size is 1.2m × 0.5m × 3m and 0.5m × 0.5m
Two kinds of × 3m, gabion are made of the mesh sheet of the multiple twin shape, hexagon mesh that weave, and upper layer net cage one third width stacks
It on lower layer's net cage, stacks, stepped, is connected by steel wire lashing between adjacent net cage step by step.
The bed mud ecology bag layer 4 piled up by the ecology bag of the organic fertilizer needed for internal filling bed mud and plant growth and
It is to obtain after dredging and bed-silt soil after harmless treatment at, the bed mud.
The water plant includes thaliadeabata, raupo and/or mullet grass, and the ground cover plant includes Canna generalis, institute
It includes forsythia viridissima Lindl, photinia glabra and/or water cape jasmine to state shrub.
A kind of construction party of river channel ecology shore protection of the embodiment 2 as described in claim 1~8 any one claim
Method includes the following steps：
1) step arrangement is made in riverbed and riverbank slope surface intersection bank slope, forms it into step slope surface, wherein platform
Wide 900~the 1300mm of rank, the high 500~600mm of step；
2) first layer 20~30mm thickness pervious concrete layers are laid in the step slope surface of riverbank slope surface, play leveling；
3) on the basis of first layer pervious concrete, it is laid with the adsorption filter layer of one layer of 50~60mm thickness, for adsorbing
The N or P element in water body are passed in and out, wherein adsorption filter layer is made of granule, zeolite, rubble lime stone and flyash, in filter layer
Granule, zeolite, rubble lime stone and flyash volume ratio be 4:2:2:2；
4) pervious concrete layer of the second layer 20~30mm thickness is re-layed on the basis of adsorption filter layer, is played leveling and is made
With and only allowing the infiltration of water body, prevent in bank that small size particle is lost in flow in soil body particle and filter layer；
5) after the completion of setting cushion, it will be filled with the cuboid gabion net of large-sized block of stone, rubble and gravel and soil
Case lifting is lifted to bed course one by one, and gabion is stacked along slope surface step by step, ultimately forms gabion baffling, is weakened water impact and is made
With and slow down flow rate of water flow, wherein the gabion is made of the mesh sheet of the multiple twin shape, hexagon mesh that weave, upper layer net cage
One third width is stacked on lower layer's net cage, is stacked step by step, stepped, is connected by steel wire lashing between adjacent net cage
It connects；
6) bed mud ecology bag is stacked on the step surface of cage barricade layer, and fills soil toward the big gap between bed mud ecology bag
Earth forms soil horizon, and soil horizon slope leveling is 30 ° of gradients with riverbed plane included angle, and soil horizon is arranged flat slope face and buries wooden case,
Wooden case size uses 400mm × 400mm × 400mm, and 0.5m is taken equidistantly to bury, and appropriate cobble is placed at wooden case bottom, is aquatic dynamic
The growth and breeding of plant and microorganism provides sufficient space；
7) soil horizon is laid with vegetation net, and vegetation net is improved according to water level conditions planting aquatic plants, ground cover plant, shrub
The ability and photosynthesis oxygen delivery capacity of vegetable layer absorption N, P element and heavy metal contaminants；
8) current scour erosion condition is typically more serious at slope foot, uses sheet pile spats, timber spats embedding at slope foot
Enter in riverbed and adsorption filter layer bottom outer close-packed arrays permeated on logical edge, it is higher by soil horizon about 0.2~0.3m at the top of sheet pile,
The effective breadth 600mm in sheet pile section, effective height 180mm, thickness 13.4mm, sheet pile are embedded in riverbed 1.8m, are higher by the top of timber
Soil horizon, to reduce flow to washing away to corroding at slope foot.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention
Range is not construed as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention also includes art technology
Personnel according to present inventive concept it is conceivable that equivalent technologies mean.
Claims (8)
1. a kind of river channel ecology shore protection, it is characterised in that：Including infiltration adsorption filter layer, timber spats, gabion baffling, bed mud life
State bag layer and vegetable layer, the infiltration adsorption filter layer are arranged in the joining place in river bank slope and riverbed, infiltration adsorption filtration
Layer forms the first staged embankment slope that can be bonded with the step surface of river bank slope, the infiltration along shore protection slope surface from bottom to top
Adsorption filter layer includes inside and outside two layers of pervious concrete layer and the adsorption filter layer that is clipped between two pervious concrete layers, is adsorbed
Filtering layer be filled between two layers of pervious concrete layer there are gap in；The timber spats is along infiltration adsorption filter layer bottom side edge
Along close-packed arrays, and every timber spats bottom end is embedded in close in the riverbed at infiltration adsorption filter layer bottom step outer；
The gabion baffling includes stacking connected objective case net cage from bottom to top along the first staged embankment slope and being filled in objective case
Supporter in net cage, wherein gabion baffling one side are matched with the first staged embankment slope slope surface, and another side, which is formed, to be used
In the second staged embankment slope for stacking bed mud ecology bag；If the bed mud ecology bag layer is made of dry course ecology bag, bottom
Layer ecology bag is stacked on the step surface on the second staged embankment slope, and the peak of bottom bed mud ecology bag layer is without departing from plate
The peak of stake spats；The vegetable layer is made of soil horizon and vegetation net, and the soil horizon is covered in gabion baffling top layer, bottom
Gap and its surface layer between mud ecology bag, side of the soil horizon towards riverbed are slope, the soil horizon surface grafting vegetation shape
At vegetation net, the vegetation net is divided into water plant, ground cover plant and filling from bottom to top according to the environment of planting soil layer
Wood.
2. a kind of a kind of river channel ecology shore protection of river channel ecology shore protection as described in claim 1, it is characterised in that：It is described permeable mixed
Solidifying soil layer is mixed by the coarse aggregate, Portland cement and water of interruption grade, 20~30mm of thickness, two layers totally, inner clip
Filter layer, tight with riverside slope face paste on one side, the inner boundary of another side and gabion baffling is adjacent to.
3. a kind of a kind of river channel ecology shore protection of river channel ecology shore protection as described in claim 1, it is characterised in that：It is described to adsorb
Filtering layer is layed between two layers of pervious concrete layer, 50~60mm of thickness, is that granule, zeolite, rubble lime stone and flyash are laid with
Made of layer structure, granule in the adsorption filter layer, zeolite, rubble lime stone and flyash volume ratio be 4:2:2:2.Institute
It is 2~4cm to state granule grain size, and the sized zeolite particles are 0.5~1cm, and the broken limestone particle size is 0.5~1cm, the fine coal
Grey grain size is 0.5~300 μm.
4. a kind of a kind of river channel ecology shore protection of river channel ecology shore protection as described in claim 1, it is characterised in that：The timber shield
Foot is using timber insertion riverbed and close-packed arrays, and timber stake diameter is 160mm, the long 3m of stake, and the top of timber exceeds bottom stone
The soil horizon of cage wall surface.
5. a kind of a kind of river channel ecology shore protection of river channel ecology shore protection as described in claim 1, it is characterised in that：The gabion gear
Wall is in rectangular parallelepiped structure, by the cuboid gabion filled with large-sized block of stone, rubble, gravel and soil step by step along slope surface
Stacking is formed by connecting；The gabion is made of the mesh sheet of the multiple twin shape, hexagon mesh that weave, upper layer net cage one third
Width is stacked on lower layer's net cage, is stacked step by step, stepped, is connected by steel wire lashing between adjacent net cage.
6. a kind of a kind of river channel ecology shore protection of river channel ecology shore protection as described in claim 1, it is characterised in that：The bed mud life
State bag layer is piled up by the ecology bag of the organic fertilizer needed for internal filling bed mud and plant growth, and the bed mud is after dredging
It obtains and the bed-silt after harmless treatment is native.
7. a kind of a kind of river channel ecology shore protection of river channel ecology shore protection as described in claim 1, it is characterised in that：The aquatic plant
Object includes thaliadeabata, raupo and/or mullet grass, and the ground cover plant includes Canna generalis, and the shrub includes forsythia viridissima Lindl, red
Leaf Chinese photinia and/or water cape jasmine.
8. a kind of river channel ecology shore protection of a kind of river channel ecology shore protection as described in claim 1~7 any one claim
Construction method includes the following steps：
1) step arrangement is made in riverbed and riverbank slope surface intersection bank slope, forms it into step slope surface；
2) it is laid with first layer pervious concrete layer in the step slope surface of riverbank slope surface, plays leveling；
3) on the basis of first layer pervious concrete, be laid with one layer of adsorption filter layer, for adsorb pass in and out water body in N, P or
Person's heavy metal element, wherein adsorption filter layer are made of granule, zeolite, rubble lime stone and flyash；
4) second layer pervious concrete layer is re-layed on the basis of adsorption filter layer, plays leveling, and only allow water body
Infiltration, prevents in bank that small size particle is lost in flow in soil body particle and filter layer；
5) after the completion of setting cushion, the cuboid gabion that will be filled with large-sized block of stone, rubble and gravel and soil is hung
Dress is lifted to bed course one by one, and gabion is stacked along slope surface step by step, ultimately forms gabion baffling, weakens water impact effect simultaneously
Slow down flow rate of water flow, wherein the gabion is made of the mesh sheet of the multiple twin shape, hexagon mesh that weave, upper layer net cage three divides
One of width be stacked on lower layer's net cage, stack, stepped, connected by steel wire lashing between adjacent net cage step by step；
6) bed mud ecology bag is stacked on the step surface of cage barricade layer, and toward the big gap filling soil shape between bed mud ecology bag
At soil horizon, soil horizon slope leveling is acute angle with riverbed plane included angle, and soil horizon is arranged flat slope face and equidistantly buries wooden case,
Appropriate cobble is placed at wooden case bottom, and sufficient space is provided for the growth and breeding of aquatic animals and plants and microorganism；
7) soil horizon is laid with vegetation net, and vegetation net is according to water level conditions planting aquatic plants, ground cover plant, shrub；
8) current scour erosion condition is typically more serious at slope foot, and sheet pile spats, timber spats intrenched stream are used at slope foot
It is in bed and logical along adsorption filter layer bottom outer close-packed arrays are permeated, it is higher by soil horizon at the top of timber, to reduce flow to slope foot
Place is washed away to corroding.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469001A (en) * | 2018-12-27 | 2019-03-15 | 北京东方园林环境股份有限公司 | A kind of river channel ecology system reconstructing structure and its building operation method |
| CN109811723A (en) * | 2019-03-07 | 2019-05-28 | 杭州中联筑境建筑设计有限公司 | A kind of staged ecoscape slope protection |
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| CN115030607A (en) * | 2022-05-25 | 2022-09-09 | 浙江泓智新材料有限公司 | River channel ecological protection fence and installation method thereof |
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