CN108640409A - A kind of combined biological shore protection and its construction method - Google Patents
A kind of combined biological shore protection and its construction method Download PDFInfo
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- CN108640409A CN108640409A CN201810336825.9A CN201810336825A CN108640409A CN 108640409 A CN108640409 A CN 108640409A CN 201810336825 A CN201810336825 A CN 201810336825A CN 108640409 A CN108640409 A CN 108640409A
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- 238000010276 construction Methods 0.000 title claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 239000002689 soil Substances 0.000 claims abstract description 48
- 238000001179 sorption measurement Methods 0.000 claims abstract description 39
- 239000011380 pervious concrete Substances 0.000 claims abstract description 25
- 230000008595 infiltration Effects 0.000 claims abstract description 23
- 238000001764 infiltration Methods 0.000 claims abstract description 23
- 235000013311 vegetables Nutrition 0.000 claims abstract description 10
- 230000003628 erosive effect Effects 0.000 claims abstract description 7
- 239000010410 layer Substances 0.000 claims description 133
- 241000196324 Embryophyta Species 0.000 claims description 27
- 235000019738 Limestone Nutrition 0.000 claims description 13
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 13
- 239000010881 fly ash Substances 0.000 claims description 13
- 239000008187 granular material Substances 0.000 claims description 13
- 239000006028 limestone Substances 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 11
- 229910021536 Zeolite Inorganic materials 0.000 claims description 10
- 239000010457 zeolite Substances 0.000 claims description 10
- 239000004575 stone Substances 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- 230000008635 plant growth Effects 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 4
- 241000684239 Canna x generalis Species 0.000 claims description 3
- 244000025254 Cannabis sativa Species 0.000 claims description 3
- 241001198934 Forsythia viridissima Species 0.000 claims description 3
- 244000111489 Gardenia augusta Species 0.000 claims description 3
- 235000018958 Gardenia augusta Nutrition 0.000 claims description 3
- 241001502129 Mullus Species 0.000 claims description 3
- 241001163113 Photinia glabra Species 0.000 claims description 3
- 239000011398 Portland cement Substances 0.000 claims description 3
- 241001518821 Typha orientalis Species 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 3
- 239000003895 organic fertilizer Substances 0.000 claims description 3
- 239000002344 surface layer Substances 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 230000001154 acute effect Effects 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000009738 saturating Methods 0.000 claims 1
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 4
- 239000003344 environmental pollutant Substances 0.000 abstract description 3
- 231100000719 pollutant Toxicity 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 6
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 239000008207 working material Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 235000019788 craving Nutrition 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
- 238000010672 photosynthesis Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
-
- 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
- E02B3/128—Coherent linings made on the spot, e.g. cast in situ, extruded on the spot
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Revetment (AREA)
Abstract
A kind of combined biological 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 combined biological 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 water that the present invention, which proposes a kind of combined biological 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, being capable of effective adsorbed water body
The pollutants such as middle N, P, heavy metal, while the flexible structural system of the shore protection ensures itself stronger erosion resistibility, has
Good durability and applicability.
A kind of combined biological shore protection of the present invention, it is characterised in that：Including infiltration adsorption filter layer, sheet pile shield
Foot, gabion baffling, bed mud ecology bag layer and vegetable layer, the infiltration adsorption filter layer are arranged in the rank in river bank slope and riverbed
Place is met, infiltration adsorption filter layer forms the first staged that can be bonded with the step surface of river bank slope along shore protection slope surface from bottom to top
Embankment slope, the infiltration adsorption filter layer include inside and outside two layers of pervious concrete layer and are clipped between two pervious concrete layers
Adsorption filter layer, adsorption filter layer be filled between two layers of pervious concrete layer there are gap in；Sheet pile spats bottom end
In the embedded riverbed close at infiltration adsorption filter layer bottom step outer, the two is affixed each other by latching；The gabion gear
Wall includes the branch for stacking connected objective case net cage from bottom to top along the first staged embankment slope and being filled in objective case net cage
Object is supportted, wherein gabion baffling one side is matched with the first staged embankment slope, and another side is formed for stacking bed mud ecology
Second staged embankment slope of bag；If the bed mud ecology bag layer is made of dry course ecology bag, bottom ecology bag is stacked on
On the step surface on the second staged embankment slope；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 the slope for water blocking,
And the soil horizon of bottom bed mud ecology bag layer covering is less than the peak of sheet pile spats, the soil horizon surface grafting vegetation shape
At vegetation net, the vegetation net is divided into water plant, ground cover plant and shrub from bottom to top..
The pervious concrete layer includes being interrupted coarse aggregate, Portland cement and the water of grade, 20~30mm of thickness,
Two layers totally, inner clip filter layer, tightly formed with riverside slope face paste on one side it is ladder-like, another side along gabion baffling inner boundary be laid with,
Infiltration lane is provided for water body inside and outside shore protection, and soil and filter layer play stable curing in opposite bank, prevent particle with dampening
Stream is lost in.
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 sheet pile spats is interconnected together using the compound sheet pile intrenched stream beds of FRP and by fore shaft, and sheet pile section has
Imitate breadth 600mm, effective height 180mm, thickness 13.4mm.
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 combined type shore protection containing ecological habitat 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；
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, sheet pile spats is used to adopt at slope foot
It is interconnected together with the compound sheet pile intrenched stream beds of FRP and by fore shaft, soil horizon about 0.2~0.3m is higher by the top of sheet pile, with
Flow is reduced to washing away at slope foot and to corrode.
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 combined type shore protection containing ecological habitat of the present invention of embodiment 1, including infiltration adsorption filter layer 1,
Sheet pile spats 2, gabion baffling 3, bed mud ecology bag layer 4 and vegetable layer 5, the infiltration adsorption filter layer 1 are arranged in river bank
The joining place on slope 6 and riverbed 7, infiltration adsorption filter layer 1 is formed from bottom to top along shore protection slope surface can be with the step surface of river bank slope
First staged embankment slope of fitting, the infiltration adsorption filter layer 1 include inside and outside two layers of pervious concrete layer 11 and are clipped in
Adsorption filter layer 12 between two pervious concrete layers, adsorption filter layer 12 be filled between two layers of pervious concrete layer 11 there are
Gap in；2 bottom end of sheet pile spats is embedded in close in the riverbed 7 at infiltration adsorption filter layer bottom step outer, the two
It is affixed each other by latching；The gabion baffling 3 includes stacking connected objective case from bottom to top along the first staged embankment slope
Net cage 31 and the supporter being filled in objective case net cage, wherein 3 one side of gabion baffling and the first staged embankment slope
Match, another side forms the second staged embankment slope for stacking bed mud ecology bag；The bed mud ecology bag layer 4 is by several
Bottom ecology bag is constituted, and bottom ecology bag is stacked on the step surface on the second staged embankment slope；The vegetable layer 5 is by soil
Layer 51 and vegetation net 52 form, and the soil horizon 51 is covered in gap and its surface layer between 3 top layer of gabion baffling, bed mud ecology bag,
Side of the soil horizon 51 towards riverbed is the slope for water blocking, and the soil horizon of bottom bed mud ecology bag layer covering is less than
The peak of sheet pile spats, 51 surface grafting vegetation of the soil horizon form vegetation net 52, and the vegetation net 52 is according to planting soil
The environment of earth layer is divided into water plant 521, ground cover plant 522 and shrub 523 from bottom to top.
The pervious concrete layer 11 includes being interrupted coarse aggregate, Portland cement and the water of grade, and thickness 20~
30mm, two layers totally, inner clip filter layer tightly forms ladder-like, inner boundary of the another side along gabion baffling with riverside slope face paste on one side
It is laid with.
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 sheet pile spats 2 is interconnected together using the compound sheet pile intrenched stream beds of FRP and by fore shaft, and sheet pile section has
Imitate breadth 600mm, effective height 180mm, thickness 13.4mm.
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 method of combined biological shore protection as described in Example 1 of embodiment 2, 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；
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, and sheet pile spats, sheet pile spats is used to adopt at slope foot
It is interconnected together with the compound sheet pile intrenched stream beds of FRP and by fore shaft, soil horizon about 0.2~0.3m, plate is higher by the top of sheet pile
The stake effective breadth 600mm in section, effective height 180mm, thickness 13.4mm, sheet pile is embedded in riverbed 1.8m, to reduce flow to slope
Washing away to corroding at 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 combined biological shore protection, it is characterised in that：Including infiltration adsorption filter layer, sheet pile spats, gabion baffling, bed mud
Ecology bag layer and vegetable layer, the infiltration adsorption filter layer are arranged in the joining place in river bank slope and riverbed, and infiltration was adsorbed
Filtering layer forms the first staged embankment slope that can be bonded with the step surface of river bank slope along shore protection slope surface from bottom to top, described to ooze
Saturating 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, absorption
Filter layer be filled between two layers of pervious concrete layer there are gap in；The insertion of sheet pile spats bottom end is adsorbed close to infiltration
In riverbed at filter layer bottom step outer, the two is affixed each other by latching；The gabion baffling includes along the first ladder
The supporter that formula embankment slope stacks connected objective case net cage and is filled in objective case net cage from bottom to top, wherein gabion baffling
One side is matched with the first staged embankment slope, and another side forms the second staged embankment for stacking bed mud ecology bag
Slope；If the bed mud ecology bag layer is made of dry course ecology bag, bottom ecology bag is stacked on the second staged embankment slope
Step surface on；The vegetable layer is made of soil horizon and vegetation net, and the soil horizon is covered in gabion baffling top layer, bed mud life
Gap and its surface layer between state bag, side of the soil horizon towards riverbed are slope for water blocking, and bottom bed mud ecology bag
The soil horizon of layer covering is less than the peak of sheet pile spats, and the soil horizon surface grafting vegetation forms vegetation net, the vegetation
Net is divided into water plant, ground cover plant and shrub from bottom to top.
2. a kind of combined biological shore protection as described in claim 1, it is characterised in that：The pervious concrete layer includes interruption
Coarse aggregate, Portland cement and the water of grade, 20~30mm of thickness, two layers totally, inner clip filter layer, on one side with riverbank slope surface
It is adjacent to form ladder-like, inner boundary laying of the another side along gabion baffling.
3. a kind of combined biological shore protection as described in claim 1, it is characterised in that：The adsorption filter layer is layed in two layers
Between pervious concrete layer, 50~60mm of thickness is layer structure made of granule, zeolite, rubble lime stone and flyash are laid with,
Granule in the adsorption filter layer, zeolite, rubble lime stone and flyash volume ratio be 4:2:2:2.The granule grain size be 2~
4cm, the sized zeolite particles be 0.5~1cm, the broken limestone particle size be 0.5~1cm, the flyash grain size be 0.5~
300μm。
4. a kind of combined biological shore protection as described in claim 1, it is characterised in that：The sheet pile spats is compound using FRP
Sheet pile is embedded in riverbed and is interconnected together by fore shaft, the effective breadth 600mm in sheet pile section, effective height 180mm, thickness
13.4mm。
5. a kind of combined biological shore protection as described in claim 1, it is characterised in that：The gabion baffling is in cuboid knot
Structure, by the cuboid gabion filled with large-sized block of stone, rubble, gravel and soil step by step along slope surface stack connection and
At；The gabion is made of the mesh sheet of the multiple twin shape, hexagon mesh that weave, and upper layer net cage one third width is stacked in
It on lower layer's net cage, stacks, stepped, is connected by steel wire lashing between adjacent net cage step by step.
6. a kind of combined biological shore protection as described in claim 1, it is characterised in that：The bed mud ecology bag layer is filled out by inside
The ecology bag for filling the organic fertilizer needed for bed mud and plant growth is piled up, and the bed mud is to be obtained after dredging and by harmless
Change treated bed-silt soil.
7. a kind of combined biological shore protection as described in claim 1, it is characterised in that：The water plant include thaliadeabata,
Raupo and/or mullet grass, the ground cover plant includes Canna generalis, and the shrub includes forsythia viridissima Lindl, photinia glabra and/or water
Cape jasmine.
8. a kind of construction method of combined biological shore protection as described in claim 1~7 any one claim, including with
Lower step：
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 N or P in disengaging water body
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
It is acute angle with riverbed plane included angle at soil horizon；
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, sheet pile spats is used to use FRP at slope foot
Compound sheet pile intrenched stream bed is simultaneously interconnected together by fore shaft, is higher by soil horizon at the top of sheet pile, with reduce flow to slope foot at
Wash away to corrode.
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| CN112878339A (en) * | 2021-01-11 | 2021-06-01 | 湘潭大学 | Biological self-repairing gabion unit device for filler, preparation method and slope reinforcement method |
| CN112878339B (en) * | 2021-01-11 | 2021-10-29 | 湘潭大学 | Biological self-repairing gabion unit device for filler, preparation method and slope reinforcement method |
| CN113186872A (en) * | 2021-05-17 | 2021-07-30 | 李圣 | Anti-seepage and anti-impact flood bank for hydraulic engineering and anti-seepage method thereof |
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