CN1298934C - Landscape type multi-stage stepwise artificial wetland protection slope forming method - Google Patents
Landscape type multi-stage stepwise artificial wetland protection slope forming method Download PDFInfo
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- CN1298934C CN1298934C CNB2004100659161A CN200410065916A CN1298934C CN 1298934 C CN1298934 C CN 1298934C CN B2004100659161 A CNB2004100659161 A CN B2004100659161A CN 200410065916 A CN200410065916 A CN 200410065916A CN 1298934 C CN1298934 C CN 1298934C
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
Abstract
The present invention relates to a forming method for landscape type multi-stage stepwise artificial wetland protection slopes, which has a purifying effect on pollutants entering river courses in the mode of a surface source. A concrete pile without sand, and a plate are inserted to form a pile plate member; rows of slope protection systems from high to low are formed from a bank slope to a river bed on the bank slope of a river course; a plant planting area is arranged on one side of an adjacent bank of a pile plate; stuffing is filled in the plant planting area; earthwork cloth is arranged on one surface of the adjacent bank of the plate; when the pollutants of the surface source flow through the river course from a river bank, abundant nutritional ingredients in sewage are absorbed by plants grown in the plant planting area; a biological film is generated on the surface of the stuffing for absorbing and degrading the pollutants; the sewage treated by the stage continuously sinks or overflows for entering a second row; the step is orderly carried out step by step; finally, after being purified by large degree, the sewage flows into the river course. The present invention solves the defects of natural slope protection, hard slope protection and ecological slope protection, has the advantages of simple structure, easy industrial production and small construction quantity, saves use land and beautifies landscapes.
Description
Technical field
The present invention relates to a kind of environment amity river course slope protection facility, particularly the pollutant that enters the river course with face source form is had the landscape type multi-stage stepwise artificial wetland protection slope system forming method of holding back clean-up effect.
Background technology
Before the present invention, existing river course slope protection technology has natural style bank protection, hard bank protection and environmental bank protection.
The natural style bank protection is exactly the plant that utilizes well developed root system, and it is planted on the ramp in river course, makes it solid native sand prevention, prevents erosion, and satisfies the ecological environment needs, keeps the natural landscape effect, protects solid native purpose thereby reach.But this natural style bank protection mode exists the defective of poor stability, easily formed zanjon by rain drop erosion, long period of soaking under water or the river course flow velocity is excessive all can influence its stability, limited to the scavenging action of the pollutant that enters the river course with face source form, and floor space is big.
The hard bank protection typically refers to by the river to adopt on the ramp and grouts or structures such as placed rockfill, cast-in-situ concrete, precast concrete block, especially mostly adopts the vertical type concrete retaining wall in the city river bank protection work.These structures are taken up an area of less, for the stability that keeps bank slope, prevent erosion and flood control safety all has certain effect, but also in varying degrees to the landscape environment of bank slope with ecologically produced bad influence: the reaction that hydration reaction, carbonization reaction and the various additive (as early strength admixture, antifreeze, expansion agent etc.) of its material therefor (comprising the alkalization aggregate) take place in water has influenced the water body quality; It makes plant and microorganism be difficult in this existence procreation to the domatic closing form of taking in river course, heavy damage bio-diversity, cause the water body and the land deterioration of the ecological environment, the pollutant that enters the river course with face source form is difficult to remove, construction volume is bigger, and cost is higher.
The environmental slope protecting technique that generally adopts has multiple mode at present, as adopt geotechnological material aggregate species phytyl, wire gauze and rubble aggregate species phytyl, the solid soil species phytyl of geotechnique's material, the vegetation type eco-concrete, cement eco-species phytyl and soil-solidified-agent etc. are to the riverbank, side slope is carried out bank protection, to stablizing the bank slope structure better effects is arranged, and the bank slope view has been carried out certain improvement, but to go into the effect of river pollutant very limited to holding back the face source, and organic glued material cost is so high, construct then and there and construction volume also very big, promote the use of and be restricted.
Summary of the invention
Purpose of the present invention just is to overcome the defective separately of above-mentioned various river course slope protection technology, develops the good river course slope protection technology of a kind of comprehensive effect.
Technical scheme of the present invention is:
The landscape type multi-stage stepwise artificial wetland protection slope forming method, comprise the sheet pile member that plate, stake constitute, piling is gone in the bank slope ground, plate is towards the riverbed setting, to a sloping side plant growing district is set at the sheet pile member, filler and plantation plant are housed in the plant growing district, and the sheet pile member extremely hangs down several rows of setting from height on bank slope.
Its further technical scheme is:
The landscape type multi-stage stepwise artificial wetland protection slope forming method, the stake both sides are fluted, and plate one side embeds in the groove of stake, and opposite side embeds in another the groove.
Advantage of the present invention and effect are can the poised stream bank slope, has good water permeability simultaneously, after rainfall runoff enters the river course side slope, below blends the mode of overflow, enters the river course through after the processing step by step of system.Fillers such as ovum gravel, coarse sand and soil and root system of plant superficial growth a large amount of microorganisms and form biomembrane, when rainfall runoff carries a large amount of pollutants and enters the river course bank slope, SS in the runoff (solid suspension) comprises by filler that ovum gravel, coarse sand and soil and root system of plant stop and holds back, and organicly removed by biomembranous absorption and assimilation, dissimilation; Root system of plant discharges the transmission of oxygen, make and occur aerobic, anoxic and anaerobism phenomenon and alternate environment around it in the microenvironment successively, thereby guaranteed that the nitrogen in the runoff water, phosphorus can not only directly be absorbed as nutrition by plant and microorganism, but also can remove from runoff the excess accumulation effect of phosphorus by nitrated, denitrification and microorganism, reach and hold back purpose and the effect that pollutant enters the river course; When the water in the river course passes through this bank slope, also can obtain the purification of certain degree by said process; Then, filler is regularly replaced and gather in plant, finally pollutant is thoroughly disposed from the river course system.
The present invention has planted plants such as hay grass, reed and shrub, has beautified the river course bank slope, presents staged green landscape layer by layer.Can on industry, produce in enormous quantities, form prefabricated component, avoid the inconvenience of site operation and the harmful effect that brings substantially,, save land used as long as install on the river course bank slope at the scene.
Description of drawings
Fig. 1---landscape type multi-stage stepwise artificial wetland protection slope sectional schematic diagram of the present invention.
Fig. 2---pile plate member structural representation.
Fig. 3---the flat distribution map of stake plate on the river course bank slope.
The specific embodiment
As shown in Figure 1, 2, 3, bank slope 12 (side slope) in the river course is upward squeezed into concrete pile 9 by certain arrangement regulation, the both sides of concrete pile 9 are fluted, one side of concrete slab 10 embeds, opposite side embeds in the groove of another concrete pile 9, constitute concrete slab pile element 1, connect always, form the arrangement of upwards pushing up gradually until the slope from river course bank slope 12 bottoms (being higher than ordinary water level); Concrete slab 10 has the two sides, and simultaneously near water, one faces bank, and concrete slab 10 adopts non-fine concretes, has good water permeability; On the one side of concrete slab 10 backwaters (riverbed) in concrete slab pile element 1 geotextiles 11 is set, stops soil, sand to see through; Is the plant growing district at each row's concrete slab pile element 1 towards a side unit of bank slope, and plant and filler are arranged, and filler comprises ovum gravel 2, coarse sand 3 and soil 4; Plant plant then in each row plant growing district, can plant different plants successively from bottom to up, shrub 8, reed 7, hay grass 6 etc. successively in this example form the staged landscape effects of different plants, also can plant other plant certainly successively; Slope angle heap between undermost concrete slab pile element 1 and riverbed is established piece stone 5.Formed the landscape type multi-stage stepwise artificial wetland protection slope system.
When area source pollutants from the two sides, river course when flow through in the river course, at first run into the formed structure of the present invention, it is the concrete pile board member 1 that area source pollutants flows into concrete pile 9 and concrete slab 10 formations, be introduced into from the top down in the unit of first row's concrete pile board member 1, the eutrophy composition that the shrub plant 8 of plantation in the plant growing district absorbs in the contaminant water, filler comprise that ovum gravel 2, coarse sand 3 and soil 4 surfaces generate biomembrane absorption degradation pollutant; Because non-fine concrete sheet pile member 1 has good water permeability, ooze or overflow under the sewage continuation through this grade preliminary treatment, enter in second row's concrete slab pile element Unit 1, go down step by step successively, absorb the material growth of rich battalion through reed 7, hay grass 6, through multistage absorption, absorption and degraded, last sewage is purified the back largely and is flowed into the river course, thereby reaches the purpose of holding back into the river pollutant.
The plant of plantation can be selected as required, and not only is confined to description of the invention.By in time, periodic replacement filler and harvesting plant, can finally from the river course, remove pollutant.
Concrete slab pile element 1 of the present invention can prefabricated production in factory, installs at the scene then get final product, and is very simple, make things convenient for.Plate 10 among the present invention, stake 9 adopt non-fine concretes to make, and be not only firm but also have a water permeability.
The present invention has obtained effect preferably in concrete implementation process.Be the test effect table in the invention process process below.(unit: mg/L)
| Date | Project | COD | NH 4-N | NO 3-N | TN | TP | SS |
| On July 8th, 2004 | Influent quality | 96.30 | 12.15 | 8.96 | 37.56 | 1.67 | 295 |
| Effluent quality | 17.33 | 3.00 | 3.25 | 7.85 | 0.24 | 31 | |
| Clearance | 82.0％ | 75.3％ | 63.7％ | 81.3％ | 85.4％ | 89.5％ | |
| On August 16th, 2004 | Influent quality | 83.40 | 18.34 | 9.80 | 40.25 | 1.73 | 243 |
| Effluent quality | 12.59 | 3.98 | 3.64 | 7.85 | 0.23 | 19 | |
| Clearance | 84.9％ | 78.3％ | 62.9％ | 80.5％ | 86.8％ | 92.2％ |
This shows that the present invention is very high to the clearance of pollutant, the water quality that enters the river course after treatment satisfies the first discharge standard among " integrated wastewater discharge standard " (GB 8978-1996), meets river course quality of water environment requirement.
Claims (5)
1. the landscape type multi-stage stepwise artificial wetland protection slope forming method comprises the sheet pile member that plate, stake constitute, and piling is gone in the bank slope ground, plate is towards the riverbed setting, to a sloping side plant growing district is set at the sheet pile member, plant and filler are arranged, the sheet pile member extremely hangs down several rows of setting from height on bank slope.
2. landscape type multi-stage stepwise artificial wetland protection slope forming method according to claim 1, the filler that adds in the plant growing district comprises ovum gravel, coarse sand, soil.
3. landscape type multi-stage stepwise artificial wetland protection slope forming method according to claim 1 is characterized in that a both sides is fluted, and plate one side embeds in the groove of stake, and opposite side embeds in another the groove.
4. according to claim 1,3 described landscape type multi-stage stepwise artificial wetland protection slope forming methods, it is characterized in that plate, stake adopt that non-fine concrete is prefabricated to form.
5. according to claim 1,3 described landscape type multi-stage stepwise artificial wetland protection slope forming methods, it is characterized in that on the back side of the plate of pile plate member, geotextiles being set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB2004100659161A CN1298934C (en) | 2004-12-27 | 2004-12-27 | Landscape type multi-stage stepwise artificial wetland protection slope forming method |
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| CNB2004100659161A CN1298934C (en) | 2004-12-27 | 2004-12-27 | Landscape type multi-stage stepwise artificial wetland protection slope forming method |
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| CN1632231A CN1632231A (en) | 2005-06-29 |
| CN1298934C true CN1298934C (en) | 2007-02-07 |
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| CNB2004100659161A Expired - Fee Related CN1298934C (en) | 2004-12-27 | 2004-12-27 | Landscape type multi-stage stepwise artificial wetland protection slope forming method |
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Cited By (1)
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| CN102061677A (en) * | 2010-12-09 | 2011-05-18 | 河海大学 | Full-section water wetland purification system suitable for normal water level of river |
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| JP2001090080A (en) * | 1999-09-20 | 2001-04-03 | Kumagai Gumi Co Ltd | Vegetation pile and greening construction method for face of slope using the same |
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Patent Citations (5)
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| RU2054081C1 (en) * | 1991-07-22 | 1996-02-10 | Анатолий Серафимович Рачков | Shore-protective construction |
| JPH10331127A (en) * | 1997-05-30 | 1998-12-15 | Maruei Concrete Kogyo Kk | Plantation block mounting method for steel bulkhead sheet pile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102061677A (en) * | 2010-12-09 | 2011-05-18 | 河海大学 | Full-section water wetland purification system suitable for normal water level of river |
| CN102061677B (en) * | 2010-12-09 | 2012-04-11 | 河海大学 | Full-section water wetland purification system suitable for normal water level of river |
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| CN1632231A (en) | 2005-06-29 |
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