CN105350489B - A kind of bank slope construction method of river lake ecological pollution - Google Patents
A kind of bank slope construction method of river lake ecological pollution Download PDFInfo
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- CN105350489B CN105350489B CN201510814008.6A CN201510814008A CN105350489B CN 105350489 B CN105350489 B CN 105350489B CN 201510814008 A CN201510814008 A CN 201510814008A CN 105350489 B CN105350489 B CN 105350489B
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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
- E02B3/02—Stream regulation, e.g. breaking up subaqueous rock, cleaning the beds of waterways, directing the water flow
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- 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
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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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- 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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- 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
- E02B3/125—Flexible prefabricated covering elements, e.g. mats, strips mainly consisting of vegetable material, e.g. wood, reeds
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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
- E02B3/16—Sealings or joints
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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Abstract
The present invention relates to a kind of bank slope construction method of river lake ecological pollution, it is characterised in that：Area is filtered absorption of by pushing up setting three on the slope of river Hu Xiangshui sides, bottom of slope builds a uptake zone；Riverbank flows to the facility that the surface water in river or lake builds by the method, be collected first after pond is collected sequentially pass through three slopes top filter absorption of area, drainpipe and gutter into the uptake zone of bottom of slope.The area that filters absorption of on slope top is made up of vertical filtration and horizontal filtering absorbing structure, and wherein horizontal filtering absorbing structure is by impervious barrier, permeable formation, horizontal subdivision layer, plant absorption layer and plant and filter layer are constituted on the bank.The uptake zone of bottom of slope is made up of water plant, planting soil, vertical separate layer and anchoring pile.Its purifying rate is high, and antifouling capacity is strong, obvious environment benefit.
Description
Technical field
It is that one kind is used for lake and River Water Pollution the present invention relates to a kind of bank slope construction method of river lake ecological pollution
Means of defence, belongs to environmental ecology field.
Background technology
In recent years, economic fast development, increases to the pollutant discharged in environment, and river and lake are subject to different degrees of
Pollution and destruction, surface water pollution protection and repair turn into current problem demanding prompt solution.According to investigations, the dirt in river and lake
Dye approach is mainly by rainwash, therefore it is excellent aobvious important to strengthen pollution protected working.At present both at home and abroad to surface water pollution
The method of protection is more, except strengthening management, is reduced outside the influence to river and lake by reducing the discharge of pollutant, uses
Ecological bank slope protection is most efficient method, and this method will not produce secondary pollution, external pollutant is carried out effective
Filtering and removal, are effectively protected river and lake not contaminated.
It is to set filtering and absorption system, removal earth's surface footpath by domatic on river loke shore side and to water that ecological bank slope is antifouling
Pollutant in stream enters river and lake, and then reaches and effectively protect the not contaminated purpose in river.
The patent of current river bank slope anti-soil technology mainly includes：A kind of ecological bank slope of efficiently quick removal pollution of area source
Construction method（Application number 200610161264.0）, ecological slope protection vegetation building block and preparation method and construction technology（Application No.
200710151031.7）, a kind of growing grass protection slope desertification control method（Application No. 03112354.6）, rock slope slope vegetation protection plantation
Base（Application No. 00120508.0）, landscape type multi-stage stepwise artificial wetland protection slope forming method（Application No.
200410065916.1）, a kind of preparation method of ecological vegetation bank protection（Application No. 201110457999.9）, one kind be suitable to village
The multidimensional filler ecological slope protection construction method that town river course is repaired（Application No. 201110121005.6）, a kind of be adapted to soil tor
The ecological bank protecting method in area（Application No. 201110235465.1）, natural ecological slope protection block（Application No.
201020584943.0）, compound ecological water-retention protective slope（Application No. 201020645946.0）, landscape type multi-stage stepwise people
Work wetland protection slope forming method（Application No. 200410065916.1）, it is a kind of take into account face source control slope protecting natural simulating ecology
Construction method（Application No. 200610161261.7）With a kind of soft isolation strip controlled for Riparian Zone bank protection and pollution of area source
Method（Application No. 201110163221.7）, it is a kind of protect water head site ecological pollution and bank protecting method（Application No.
201410014006.4）Etc., these patented technologies are original to river lake to take the skill for keeping slope stability to the side slope of water one
Art measure, relatively costly, difficulty of construction is big.Pollutant is filtered absorption of additionally by domatic, pollutant is preferably lost in, into river lake water
Body, and then there is the risk of antifouling failure, therefore, application effect is not obvious.
The content of the invention
It is an object of the invention to provide a kind of bank slope construction method of river lake ecological pollution, it is directed to current river lake ecological
Anti-fouling method high cost, complex operation, operation cycle is short, the low defect of difficult in maintenance and treatment effeciency, set up an operation letter
Single practical, low cost and have a wide range of application, particularly run cycle antifouling bank slope long, easy to maintenance and obvious processing effect
Method, it can effectively improve purification efficiency, reduce operating cost.
What the technical scheme of invention was realized in：The bank slope construction method of a kind of river lake ecological pollution, by river
Or the slope to water side in lake is pushed up three distributions in step of setting and filters absorption of area, bottom of slope builds a uptake zone；Riverbank
When the surface water for flowing to river or lake builds facility by the bank slope of the ecological pollution, it is collected first after pond is collected and passes through successively
Cross the first of slope top filter absorption of area, second filter absorption of area and the 3rd and filter absorption of area, eventually pass through drainpipe and gutter
Into the uptake zone of bottom of slope；Collecting pit is arranged at three and filters absorption of area dorsad He Hu sides, adjacent with the first uptake zone；Draining
Pipe is arranged at three and filters absorption of area towards He Hu sides, and it is adjacent to filter absorption of area with the 3rd；Gutter is arranged at drainpipe face
To the domatic of He Hu sides, it is connected with the mouth of pipe of drainpipe；Three of slope top filter absorption of area respectively by vertical filtration and
Horizontal filtering absorbing structure is constituted, and each vertical filtration for filtering absorption of area is located at horizontal filtering absorbing structure dorsad river lake
Side and adjacent thereto, each bottom for filtering absorption of the vertical filtration in area is divided equally higher than horizontal filtering absorbing structure reclaimed water
Interlayer layer 50 ~ 100mm of top, the first horizontal filtering absorbing structure substrate for filtering absorption of area filters absorption of the vertical of area higher than second
0 ~ the 100mm of substrate of filtration, the second horizontal filtering absorbing structure substrate for filtering absorption of area filters absorption of area higher than the 3rd
Vertical filtration 0 ~ 100mm of substrate；The first vertical filtration for filtering absorption of area is made up of filtering bodies and porous disc,
Porous disc is distributed in the both sides of filtering bodies, second and the 3rd filter absorption of the vertical filtration in area by filtering bodies, porous disc and
Filter is constituted, and porous disc and filter are located at filtering bodies both sides, and filter is located at dorsad river side；First and second filterings
Uptake zone horizontal filtering absorbing structure arrangement form is Down-Up to be followed successively by impervious barrier, permeable formation, horizontal subdivision layer, plant to inhale
Receive layer and plant on the bank, the 3rd filters absorption of and be also provided with filtering between the impervious barrier and permeable formation of area's horizontal filtering absorbing structure
Layer；The uptake zone of bottom of slope is made up of water plant, planting soil, vertical separate layer and anchoring pile, and water plant is placed on planting soil,
Vertical separate layer and anchoring pile are located at planting soil to water side, and vertical separate layer is located between planting soil and anchoring pile and is connected；It is special
Levy and be：Three impervious barriers for filtering absorption of area are prepared using cement, flyash, sodium bentonite and clay, and preparation method is
Mixed in clay weight ratio for 10 ~ 20% cement, 5% ~ 10% flyash and 6 ~ 12% sodium bentonite it is well mixed, system
Standby impervious barrier thickness is 80 ~ 150mm, and compacting factor is more than 94%；Described permeable formation is the mixture of fine sand and middle sand, is mixed
15 ~ 30% are accounted for by weight middle sand in compound, the thickness of permeable formation is 200 ~ 500mm；Described horizontal segmentation layer using coarse sand and
The mixture of gravelly sand, mixture pebbly sandstone accounts for 40 ~ 70%, and the thickness of horizontal segmentation layer is 50 ~ 100mm.
Described plant absorption layer is mixed with using soil, peat soil, string, canebreak and water, using
Peat soil, 0.5 ~ 5% string, 5 ~ 20% canebreak and 5 ~ 10% water that weight ratio is 5 ~ 15% are added in soil；
Soil is to crush less than 20mm straws long using the table soil within the 0.5m depth of slope top, string, and canebreak is
The straw long less than 10mm crushed；Peat soil is using riverbed sludge and the straw hybrid anaerobic fermentation system crushed
Standby, preparation method is that 20 ~ 50% crushing is added in riverbed sludge less than 10mm straw anaerobic fermentations long 15 ~ 30 days；
300 ~ the 800mm of thickness of described absorbed layer, 3.0 ~ 8.0m of width, with its lower horizontal segmentation layer laid and the width of permeable formation
It is identical.
The positive effect of the present invention is to set antifouling system with bottom of slope on the bank in river lake, does not produce additional lotus to domatic
Carry, effectively ensure domatic stabilization, while the measure for protecting slope stability to take is reduced to, thus low cost, its construction letter
Single, the operation cycle is long, easy to maintenance, and materials are extensive, and method is simple, environmental protection；The present invention sets three-level filter system, 3 times
Absorption, 7 filterings, purifying rate is high, and antifouling capacity is greatly enhanced, obvious environment benefit.
Brief description of the drawings
Fig. 1 is cross-sectional view of the invention.
Fig. 2 is planar structure schematic diagram of the invention.
1. collecting pit in figure, 2. upper strata grid, 3. lower floor's grid, 4. impervious barrier, 5. permeable formation, 6. horizontal subdivision
Layer, 7. plant absorption layer, 8. filter layer, 9. plant on the bank, 10. waterproof plate, 11. porous discs, 12. filters, 13.
Filtering bodies, 14. drainpipes, 15. gutters, 16. water plants, 17. planting soils, 18. vertical separate layers, 19. anchoring piles,
20. vertical filtrations, 21. horizontal filtering absorbing structures.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples：
Embodiment 1：Bank slope for River Water Pollution protection builds
As shown in Figure 1-2, three are set to the slope top of water side in certain river and filters absorption of area, bottom of slope builds a suction
Receive area；Respectively filter absorption of area to be made up of vertical filtration 20 and horizontal filtering absorbing structure 21, vertical filtration 20 is by mistake
Filter body 13, porous disc 11 and filter 12 are constituted, and horizontal filtering absorbing structure 21 is Down-Up followed successively by impervious barrier 4, permeable formation
5th, horizontal subdivision layer 6, plant absorption layer 7 and on the bank plant 9, wherein the 3rd filters absorption of between the impervious barrier 4 in area and permeable formation 5
It is also provided with filter layer 8；The uptake zone of bottom of slope is made up of water plant 16, planting soil 17, vertical separate layer 18 and anchoring pile 19.
Each filters absorption of the bottom of the vertical filtration 20 in area higher than horizontal subdivision in horizontal filtering absorbing structure 21
6 layers of top 50mm of layer, the first substrate of horizontal filtering absorbing structure 21 for filtering absorption of area filters absorption of the vertical mistake in area higher than second
The substrate 20mm of structure 20 is filtered, the second substrate of horizontal filtering absorbing structure 21 for filtering absorption of area filters absorption of area higher than the 3rd
The substrate 20mm of vertical filtration 20.
The grizzly bar gap width of upper strata grid 2 is 10 ~ 20mm in collecting pit 1, the grizzly bar gap width of lower floor's grid 3 for 3 ~
8mm, the bottom of collecting pit 1 is less than the bottom 200mm of filtering bodies 13.
Three impervious barriers 4 for filtering absorption of area use mixed in clay weight than the cement for 15%, 7% flyash and
6% sodium bentonite is mixed with, and the thickness of impervious barrier 4 is 100mm, and compacting factor is more than 94%；The thickness of permeable formation 5
It is 400mm to spend, and is that weight is prepared than the mixture of sand in 80% fine sand and 20%；The thickness of horizontal segmentation layer 6 is 70mm, using weight
Coarse sand and 40% gravelly sand than 60% is measured to be mixed with.
Plant absorption layer 7 thickness 400mm, 3.0 ~ 5.0m of width；Plant absorption layer 7 use in soil addition weight ratio for
10% peat soil, 2% string, 8% canebreak and 7% water are mixed with, soil use slope push up 0.5m depth with
Interior table soil, string is to crush less than 20mm straws long, and canebreak is the plant long less than 10mm crushed
Stalk, peat soil is used and adds straw anaerobic fermentation of 30% length less than 10mm to prepare for 20 days in riverbed sludge.
Prepared by rubble of the filter layer 8 using maximum particle diameter less than 30mm, it is 35mm concrete that waterproof plate 10 uses thickness
Plate, porous disc 11 is less than 20mm porous concrete slabs using thickness 50mm and maximum diameter of hole, filter 12 be top it is waterproof under
Portion is permeable and height of permeable part is identical with the thickness of permeable formation 5, and the thickness of filter 12 is 50mm, and waterproof plate 10, plant is inhaled
The porous disc 11 and the top of filter 12 for receiving the side of layer 7 are higher than plant absorption layer 7100mm, permeable at the outer row's mouth of drainpipe 14
The length of side of plate 11 is more than the external diameter 60mm of drainpipe 14, and the top of waterproof plate 10 is more than with river lake to the horizontal range at the domatic top of water
1.0m。
Filtering bodies 13 are mixed with using rubble with gravelly sand, and its gravelly sand content is 35%, and the width of filtering bodies 13 is 1.5m；
Gutter width is 500mm, and depth is 300mm, and impervious barrier 4 is set in gutter；Draining bore is 150mm, draining tube pitch
It is 30m.
Width is prepared using weight for the planting soil 17 of 2.0m than the mixture of 85% riverbed sludge and 15% rubble, vertically
Separate layer 18 is piled up for the ecology bag of filling riverbed sludge and is formed, and anchoring pile 19 uses reinforced concrete pile, a length of 1.5m of stake, stake footpath
It is 75mm.
Described plant on the bank 9 is one or more in Trifolium repense, rye grass, garden pink and yellow flag, aquatic plant
Thing 16 is reed and water lily.
Effects of purification quality：After implementation, sampled detection, COD contents 11.9 mg/L, the SS content in collecting pit 1 is
60mg/L, TN content are 3.35mg/L, and TP contents are 0.65mg/L, NH3- N content is 1.63mg/L.By the technical finesse
Afterwards, sampling inspection results show in the reed of bottom of slope water plant 16：COD contents 6.6 mg/L, SS content are 11mg/L, TN
Content is 1.25mg/L, and TP contents are 0.25mg/L, NH3- N content is 0.52mg/L.Clearance is respectively 44.5%,
81.7%th, 62.7%, 61.5% and 68.1%.From in terms of testing result, treatment effect is obvious.
Embodiment 2：Bank slope for water body in lake pollution protection builds
Three being set in lake to the slope top of water side and filtering absorption of area, bottom of slope builds a suction as depicted in figs. 1 and 2
Receive area；Each bottom for filtering absorption of the vertical filtration 20 in area divides interlayer 6 equally higher than the reclaimed water of horizontal filtering absorbing structure 21
Layer top 100mm, the first substrate of horizontal filtering absorbing structure 21 for filtering absorption of area filters absorption of the vertical filtering in area higher than second
The substrate 50mm of structure 20, the second substrate of horizontal filtering absorbing structure 21 for filtering absorption of area filters absorption of hanging down for area higher than the 3rd
To the substrate 50mm of filtration 20；It is 15 ~ 20mm upper stratas grid 2 and grizzly bar gap that grizzly bar gap width is set in collecting pit 1
Width is lower floor's grid 3 of 5 ~ 10mm, and the bottom of collecting pit 1 is less than the bottom 300mm of filtering bodies 13.
Impervious barrier 4 uses and weight is mixed in clay than the cement for 10%, 6% flyash and 10% sodium bentonite
Well mixed to prepare, the thickness of impervious barrier 4 is 80mm, and compacting factor is more than 94%；The thickness of permeable formation 5 is 300mm, is that weight compares 85%
In fine sand and 15% prepared by the mixture of sand；Horizontal segmentation 6 thickness of layer are 80mm, using weight than 40% coarse sand and 60% gravelly sand
It is mixed with.
Plant absorption layer 7 adds weight more broken than the peat soil for 8%, 3% string, 10% plant in using soil
Bits and 9% water；Soil is the 8 ~ 15mm straws long crushed using the table soil within the 0.5m depth of slope top, string, is planted
Thing chip is the 5 ~ 10mm for crushing straws long；Peat soil uses add 25% length less than 10mm in riverbed sludge
Straw anaerobic fermentation is prepared for 30 days；The thickness 500mm, 4.0 ~ 6.0m of width of plant absorption layer 7.
Cobble of the filter layer 8 using maximum particle diameter less than 50mm, it is the concrete slab of 50mm that waterproof plate 10 uses thickness；Thoroughly
Water plate 11 uses thickness of slab 50mm and aperture is 10 ~ 20mm porous concrete slabs；The bottom of filter 12 be permeable part height with
The thickness of permeable formation 5 is identical, and thickness of slab is 60mm；The porous disc 11 of 7 side of waterproof plate 10, plant absorption layer and the top of filter 12
Higher than plant absorption layer 750mm；The length of side of porous disc 11 at the outer row's mouth of drainpipe 14 is more than the external diameter 50mm of drainpipe 14.
Cobble gravelly sand with 20% of the filtering bodies 13 using weight than 80% is mixed with, and the width of filtering bodies is 2.0m；Row
Water pipe internal diameter is 100 ~ 300mm, and draining tube pitch is 20 ~ 50m.
The top of waterproof plate 10 is more than 1.0m with river lake to the horizontal range at the domatic top of water；The width of gutter 15 is
400mm, depth is 500mm, and impervious barrier 4 is set in gutter.
The width of planting soil 17 is 3.0m, and riverbed sludge and 10% rubble using weight than 90% are mixed with；Vertical point
Interlayer 18 is piled up for the ecology bag of filling riverbed sludge and is formed, and anchoring pile 19 uses timber, a length of 1.8m of stake, and stake footpath is 70mm；Bank
Upper plant 9 is one or more in yellow flag, sheep's hay, salsola collina, clover and Stipa capillata, and water plant 16 is reed and cattail.
Specific embodiment disclosed above is disclosed to the present invention, but the present invention is not limited to this, any this area
The thinkable change of technical staff, not departing from design philosophy of the invention and scope, what the present invention was carried out various changes
It is dynamic, all should be within protection scope of the present invention.
Effects of purification quality：After implementation, sampled detection, COD contents 6.7mg/L, the SS content in collecting pit 1 is
122mg/L, TN content are 2.1mg/L, and TP contents are 0.83mg/L, NH3- N content is 1.15mg/L.By the technical finesse
Afterwards, sampling inspection results show in the reed of bottom of slope water plant 16 and cattail：COD contents 4.2 mg/L, SS content are 40mg/
L, TN content are 0.88mg/L, and TP contents are 0.30mg/L, NH3- N content is 0.31mg/L.Clearance is respectively 37.3%,
67.2%th, 58.1%, 63.9% and 73.0%.Show from testing result, treatment effect is obvious.
Claims (2)
1. a kind of bank slope construction method of river lake ecological pollution, three are set by being pushed up on the slope to water side in river or lake
In the area that filters absorption of of terraced distribution, bottom of slope builds a uptake zone；Riverbank flows to the surface water in river or lake by the life
When the antifouling bank slope of state builds facility, it is collected first after pond is collected and sequentially passes through the first of slope top and filter absorption of area, the second mistake
Filter uptake zone and the 3rd filters absorption of area, eventually passes through drainpipe and gutter enters the uptake zone of bottom of slope；Collecting pit is arranged at
Three filter absorption of area dorsad He Hu sides, and it is adjacent to filter absorption of area with first；Drainpipe is arranged at three and filters absorption of area face
To He Hu sides, area is filtered absorption of with the 3rd adjacent；Gutter is arranged at drainpipe towards the domatic of He Hu sides, with draining
The mouth of pipe of pipe is connected；Three of slope top filter absorption of area and are made up of vertical filtration and horizontal filtering absorbing structure respectively, often
The individual vertical filtration for filtering absorption of area is located at horizontal filtering absorbing structure dorsad He Hu sides and adjacent thereto, each filtering
The bottom of the vertical filtration of uptake zone divides interlayer layer 50 ~ 100mm of top, the first mistake equally higher than horizontal filtering absorbing structure reclaimed water
The horizontal filtering absorbing structure substrate for filtering uptake zone is higher than the 0 ~ 100mm of substrate of the second vertical filtration for filtering absorption of area,
Second filter absorption of the horizontal filtering absorbing structure substrate in area filtered absorption of higher than the 3rd area vertical filtration substrate 0 ~
100mm ；The first vertical filtration for filtering absorption of area is made up of filtering bodies, filter and porous disc, and porous disc was distributed in
Filter body both sides, second and the 3rd the vertical filtration for filtering absorption of area be made up of filtering bodies, porous disc and filter, it is permeable
Plate and filter are located at filtering bodies both sides, and filter is located at dorsad river side；First and second filter absorption of area's horizontal filtering
Absorbing structure arrangement form be Down-Up be followed successively by impervious barrier, permeable formation, horizontal subdivision layer, plant absorption layer, filter layer and
Plant on the bank, the 3rd to filter absorption of and be also provided with filter layer between the impervious barrier and permeable formation of area's horizontal filtering absorbing structure；Slope
The uptake zone at bottom is made up of water plant, planting soil, vertical separate layer and anchoring pile, and water plant is placed on planting soil, vertically
Separate layer and anchoring pile are located at planting soil to water side, and vertical separate layer is located between planting soil and anchoring pile and is connected；Its feature exists
In：Three impervious barriers for filtering absorption of area are prepared using cement, flyash, sodium bentonite and clay, and preparation method is viscous
Mixed in soil weight ratio for 10 ~ 20% cement, 5% ~ 10% flyash and 6 ~ 12% sodium bentonite it is well mixed,
The impervious barrier thickness of preparation is 80 ~ 150mm, and compacting factor is more than 94%；Described permeable formation is the mixing of fine sand and middle sand
Thing, 15 ~ 30% are accounted in mixture by weight middle sand, and the thickness of permeable formation is 200 ~ 500mm；Described horizontal subdivision layer is adopted
With coarse sand and the mixture of gravelly sand, mixture pebbly sandstone accounts for 40 ~ 70%, and the thickness of horizontal subdivision layer is 50 ~ 100mm.
2. a kind of bank slope construction method of the river lake ecological pollution according to claim 1, it is characterised in that plant absorption
Layer is mixed with using soil, peat soil, string, canebreak and water, use added in soil weight ratio for 5 ~
15% peat soil, 0.5 ~ 5% string, 5 ~ 20% canebreak and 5 ~ 10% water；Soil is pushed up using slope
Table soil within 0.5m depth, string is to crush less than 20mm straws long, and canebreak is being less than for crushing
Straw 10mm long；Peat soil is prepared using riverbed sludge and the straw hybrid anaerobic fermentation crushed, preparation method
It is that 20 ~ 50% crushing is added in riverbed sludge less than 10mm straw anaerobic fermentations long 15 ~ 30 days；It is described
Absorbed layer 300 ~ 800mm of thickness, 3.0 ~ 8.0m of width, with its lower horizontal subdivision layer laid and the width phase of permeable formation
Together.
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| CN107806062B (en) * | 2017-11-01 | 2020-04-14 | 江苏飞鱼环保科技有限公司 | Construction method of biological filtration slope protection for riverway restoration |
| CN107938457B (en) * | 2017-12-25 | 2023-05-09 | 浙江大学城市学院 | Highway roadbed river filling structure adjacent to existing subway facilities and construction method |
| CN109678582A (en) * | 2019-01-02 | 2019-04-26 | 四川大学 | Administer the dedicated base-material of shore protection of black and odorous water |
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| CN2717942Y (en) * | 2004-06-02 | 2005-08-17 | 华南农业大学 | Life sewage vertical flowing-horizontal flowing composite artificial wet land treatment bed |
| KR20050043856A (en) * | 2005-04-19 | 2005-05-11 | (주)토목기술엔지니어링 | Water cleaning apparatus using plant |
| CN101767915B (en) * | 2010-01-13 | 2012-05-23 | 广西大学 | Method for treating land with domestic sewage at water-source forest land of mountain area |
| CN101824811A (en) * | 2010-04-15 | 2010-09-08 | 河海大学 | Multi-stage water power aerobic ecological wetland type slope protection device |
| CN201722257U (en) * | 2010-07-02 | 2011-01-26 | 北京特兰斯福生态环境科技发展有限公司 | Novel unpowered constructed wetland sewage treatment system |
| CN103669282B (en) * | 2013-12-26 | 2016-05-11 | 东北师范大学 | A kind of method that riverbed sludge is processed on the spot |
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