CN105442491A - Bottom silt on-site treatment and ecological slope protection method for river/lake - Google Patents
Bottom silt on-site treatment and ecological slope protection method for river/lake Download PDFInfo
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- CN105442491A CN105442491A CN201510769217.3A CN201510769217A CN105442491A CN 105442491 A CN105442491 A CN 105442491A CN 201510769217 A CN201510769217 A CN 201510769217A CN 105442491 A CN105442491 A CN 105442491A
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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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Abstract
The invention relates to a bottom silt on-site treatment and ecological slope protection method for a river/lake. The bottom silt on-site treatment and ecological slope protection method for the river/lake is characterized by comprising the steps that the slope surface of the side, facing water, of the river/lake is divided into three to six treatment areas from the slope top to the slope bottom; a water collection tank is arranged between the first treatment area on the slope top and a road on a dam crest, and transverse drainage ditches are formed between the other treatment areas; longitudinal drainage ditches are formed between the water collection tank and the water area at the slope bottom; all the treatment areas are filled with river/lake bottom silt in a layered mode, and plants are grown in the river/lake bottom silt with which the treatment areas are filled; the portions, above slope surface original soil, in the treatment areas are filled with river/lake bottom silt in a layered mode, and a drainage layer is arranged between every two river/lake bottom silt layers; an anti-slip layer is arranged between the river/lake bottom silt on the bottom layer and the slope surface original soil; and a poly ethylene (PE) plastic film is laid on the surface of the river/lake bottom silt on the top layer. According to the bottom silt on-site treatment and ecological slope protection method for the river/lake, the river/lake bottom silt is treated, and meanwhile the slope protection capacity of the planes is improved; the cost is low, using is safe and reliable, the operability is high, and economical benefits and environmental benefits are remarkable.
Description
Technical field
The present invention relates to a kind of riverbed sludge treatment in situ and ecological bank protecting method, for riverbed sludge treatment in situ and lake, river ecological revetment, belong to environmental ecology field.
Background technology
Along with expanding economy, the raising of living standards of the people, river and lake are subject to pollution in various degree and destruction, domatic cave in serious, vegetation deterioration, soil erosion aggravates, and then cause riverbed sludge accumulating rate to be accelerated, affect retaining, flood control and ecological safety etc.Containing a large amount of cohesive soil, organic matter and hard-degraded substance etc. in riverbed sludge, these are deposited on pollutant in bed mud in physics, chemistry and the complicated effect such as biological, then to water body release pollutant, destroy aquatic ecosystem, threat human health.
For the process of polluting riverbed sludge, the mechanical means that adopts is excavated more at present, has bad luck the appointed place outside lake, river, then focus on by machinery.This method, although comparatively effectively can process riverbed sludge, improve the pollution situation in river, due to the manpower and materials of mechanical removal at substantial, cost is higher, and riverbed sludge easily produces new pollution in transport and processing procedure.Carry out treatment in situ to riverbed sludge, expense is low, reduces the secondary pollution of transport and processing links generation.Riverbed sludge treatment in situ is combined with ecological revetment, has both processed riverbed sludge, improve ecological revetment ability again, reduce caving in of loke shore limit, river.Obtain economic benefit and environmental benefit bumper harvests.
The method processing riverbed sludge in current patent is more, mainly comprise a kind of method (CN103408209A) utilizing modified zeolite in-situ control sedimentary phosphate to discharge, a kind of lake, river dredged sediment dehydration and drying integration experimental rig and method (CN103408207A), be applicable to the multistage water quality ecological purification system (CN103351084A) that shallow narrow mixes water river course, the treatment system removed for inner city pollution of river bed mud and treatment process (CN103334469A), contaminated sediments treating apparatus (CN203307188U), a kind of method (201310727843.7) of riverbed sludge treatment in situ, a kind of utilize river bottom silt of contaminated river course to rebuild water ecology group method (200810038457.6) and a kind of multidimensional filler ecological slope protection construction process (201110121005.6) etc. being suitable for the reparation of river course, villages and small towns.But above-mentioned patent processing cost is higher, and be limited in by the method process bed mud of physics, chemistry more, fail to take into full account synergy that is biological and ecology, use limitation comparatively large, Difficulty.Because riverbed sludge water content is large, stack that lake, river is domatic easily to cave in; And place domatic after adopting physical method mummification, poor with domatic combination, wash away rainy season, phenomenon of caving in is serious; If by riverbed sludge and domatic native mixed compaction process, not only reduce the fertilizer efficiency of riverbed sludge, be unfavorable for the growth of vegetation, treatment effect is not obvious, increases cost simultaneously.For the above-mentioned reasons, the method combined with ecological revetment by riverbed sludge is not yet found at present.
Summary of the invention
Object of the present invention provides a kind of for riverbed sludge treatment in situ and lake, river ecological bank protecting method, its practicality simple to operate, applied range, that process riverbed sludge is combined with ecological revetment, effectively utilize riverbed sludge fertilizer efficiency, promote the growth of slope-protecting plant, reduce lake, river Treatment of Sludge cost, improve ecological revetment ability, improve water bodies of rivers and lakes environment, economic benefit and obvious environment benefit.
Technical scheme of the present invention is achieved in that a kind of riverbed sludge treatment in situ and ecological bank protecting method, it is characterized in that: lake is along the river pushed up at the bottom of slope to water side domatic from slope and is divided into 3 to 6 treatment regions, between process one district, top, slope and dam crest road, catch basin is set, and throughout between reason district, transverse drain ditch is set, at the bottom of catch basin and slope, between waters, longitudinal drainage ditch is set, manage layering in district throughout and insert riverbed sludge, and manage planting plants in the riverbed sludge inserted in district throughout, lake, river is less than 60 degree to the slope angle of water one side slope, in treatment region, the higher slice of domatic original soil inserts riverbed sludge, between every layer of riverbed sludge, drainage blanket is set, between the riverbed sludge of bottom and domatic original soil, skid resistant course is set, PE plastic sheeting is laid on the riverbed sludge surface of placing domatic top layer.
The transverse drain ditch arranged between described each treatment region arranges antislide pile to water surface side, arranges filler in transverse drain ditch, and bottom side and the antislide pile side of filler arrange waterproofing course; Bottom and the both sides of described longitudinal drainage ditch arrange waterproofing course.
Treatment region at the bottom of described slope is provided with near the toe position of the water surface that toe is stable covers body, and toe is stable covers body arranged outside anchoring pile, and toe is stablized and covered body and arrange interlayer near the side of anchoring pile.
It is 2 ~ 8m that described slope is pushed up each treatment region at the bottom of slope wide along line of slope; Riverbed sludge for fish in lake, river, and be placed to after not seeping water, treatment region is inserted in layering, and each layer thickness is 150 ~ 300mm, and filling-up thickness is 300 ~ 600mm; Longitudinal drainage ditch spacing is 4 ~ 10m, and the bottom of longitudinal drainage ditch is lower than domatic original soil 100 ~ 200mm.
Described drainage blanket adopts medium sand, coarse sand or medium coarse sand, and laying depth is 30 ~ 100mm.
Described skid resistant course adopts rubble or gravelly sand, and particle diameter is less than 50mm, and laying depth is 50 ~ 100mm.
Described PE covered rearing with plastic film riverbed sludge surface, the cover time is 1 ~ 2 month.
Described transverse drainage bank line of slope width is 150 ~ 500mm, and end face is higher than riverbed sludge end face 50 ~ 100mm, and bottom surface is lower than skid resistant course 50 ~ 100mm.
Described filler adopts rubble or gravelly sand, and particle diameter is not more than 80mm; Antislide pile adopts timber or reinforced concrete pile, the long 1.0 ~ 1.5m of stake, and stake footpath or the length of side are 70 ~ 100mm; Waterproofing course adopts clay, and wherein mixing mass ratio is the sodium bentonite of 7 ~ 15% and the cement of 5 ~ 15%, and the water mix adding 20 ~ 40% is evenly laid afterwards, and laying depth is 60 ~ 120mm.
The stable body that covers of described toe adopts free stone masonry, and building by laying bricks or stones is highly 0.8 ~ 1.5m, and along top, slope, at the bottom of slope, width is built in direction by laying bricks or stones is 1.0 ~ 3.0m; Toe is stable to be covered body and arranges anchoring pile to water side, and anchoring pile adopts timber or reinforced concrete pile, and stake is long is 1.5 ~ 3.0m, and stake footpath or the length of side are 80 ~ 150mm; Interlayer adopts rubble, and particle diameter is for being not more than 100mm; For guaranteeing effect, said method, in implementation process, avoids rainfall Snowfall, and outside air temperature is not less than 0 DEG C.
Good effect of the present invention is combined with ecological revetment at riverbed sludge process, riverbed sludge is used for slope-protecting plant soil horizon, improves the energy for growth of slope-protecting plant, and then improve ecological revetment ability.The method adopts the material such as rubble, rubble, timber or reinforced concrete pile, sodium bentonite, cement, and draw materials extensively, method is simple, protection of the environment.The method cost is low, can improve water bodies of rivers and lakes water quality, obvious environment benefit.
Accompanying drawing explanation
Fig. 1 is domatic schematic top plan view of the present invention.
Fig. 2 is cross-sectional view of the present invention.
Fig. 3 is transverse drain ditch of the present invention cross-sectional view.
Fig. 4 is longitudinal drainage ditch cross-sectional view of the present invention.
1. dam crest road, 2. catch basin, 3. transverse drain ditch, 4. antislide piles in figure, 5. longitudinal drainage ditch, 6. skid resistant course, 7. toe is stable covers body, 8. processes a district, 9. process 2nd district, 10. process 3rd district, 11. process 4th district, 12. process 5th district, 13. waterproofing courses, 14. fillers, 15. drainage blankets, 16. riverbed sludges, 17.PE plastic sheeting, 18. plants, 19. interlayers, 20. domatic original soils, 21. anchoring piles.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further illustrated: as shown in Fig. 1 ~ 4, a kind of riverbed sludge treatment in situ and ecological bank protecting method, it is characterized in that: lake is along the river pushed up at the bottom of slope to water side domatic from slope and is divided into 3 to 6 treatment regions, between process one district 8, top, slope and dam crest road 1, catch basin 2 is set, and throughout between reason district, transverse drain ditch 3 is set, at the bottom of catch basin 2 and slope, between waters, longitudinal drainage ditch 5 is set, manage layering in district throughout and insert riverbed sludge 16, and manage planting plants 18 in the riverbed sludge 16 inserted in district throughout, lake, river is less than 60 degree to the slope angle of water one side slope, in treatment region, the higher slice of domatic original soil 20 inserts riverbed sludge 16, between every layer of riverbed sludge 16, drainage blanket 15 is set, between the riverbed sludge 16 of bottom and domatic original soil 20, skid resistant course 6 is set, PE plastic sheeting 17 is laid on riverbed sludge 16 surface of placing domatic top layer.
The transverse drain ditch 3 arranged between described each treatment region arranges antislide pile 4 to water surface side, arranges filler 14 in transverse drain ditch 3, and bottom side and antislide pile 4 side of filler 14 arrange waterproofing course 13; Bottom and the both sides of described longitudinal drainage ditch 5 arrange waterproofing course 13.
Treatment region at the bottom of described slope is provided with near the toe position of the water surface that toe is stable covers body 7, and toe is stable covers body 7 arranged outside anchoring pile 21, and toe is stablized and covered body 7 and arrange interlayer 19 near the side of anchoring pile 21.
It is 2 ~ 8m that described slope is pushed up each treatment region at the bottom of slope wide along line of slope; Riverbed sludge 16 for fish in lake, river, and be placed to after not seeping water, treatment region is inserted in layering, and each layer thickness is 150 ~ 300mm, and filling-up thickness is 300 ~ 600mm; Longitudinal drainage ditch 5 spacing is 4 ~ 10m, and the bottom of longitudinal drainage ditch 5 is lower than domatic original soil 20100 ~ 200mm.
Described drainage blanket 15 adopts medium sand, coarse sand or medium coarse sand, and laying depth is 30 ~ 100mm.
Described skid resistant course 6 adopts rubble or gravelly sand, and particle diameter is less than 50mm, and laying depth is 50 ~ 100mm.
Described PE plastic sheeting 17 covers riverbed sludge 16 surface, and the cover time is 1 ~ 2 month.
Described transverse drain ditch 3 is 150 ~ 500mm along line of slope width, and end face is 50 ~ 100mm higher than riverbed sludge 16 end face, and bottom surface is 50 ~ 100mm lower than skid resistant course 6.
Described filler 14 adopts rubble or gravelly sand, and particle diameter is not more than 80mm; Antislide pile 4 adopts timber or reinforced concrete pile, the long 1.0 ~ 1.5m of stake, and stake footpath or the length of side are 70 ~ 100mm; Waterproofing course 13 adopts clay, and wherein mixing mass ratio is the sodium bentonite of 7 ~ 15% and the cement of 5 ~ 15%, and the water mix adding 20 ~ 40% is evenly laid afterwards, and laying depth is 60 ~ 120mm.
Described toe is stable to be covered body 7 and adopts free stone masonry, and building by laying bricks or stones is highly 0.8 ~ 1.5m, and pushing up along slope and building width by laying bricks or stones to direction at the bottom of slope is 1.0 ~ 3.0m; Toe is stable to be covered body 7 and arranges anchoring pile 21 to water side, and anchoring pile 21 adopts timber or reinforced concrete pile, and stake is long is 1.5 ~ 3.0m, and stake footpath or the length of side are 80 ~ 150mm; Interlayer 19 adopts rubble, and particle diameter is for being not more than 100mm.
Embodiment 1
For bed mud in river process and ecological revetment
Certain river is domatic, and the gradient is 45 degree, processes slope vegetation, to what be necessary to transplant, has carried out transplanting process; Domaticly be divided into five treatment regions, along domatic to push up from slope each treatment region at the bottom of slope wide for process one district 8 be 3m, process two districts 9 be 3m, process three districts 10 be 3m, process four districts 11 for 3m and process five districts 12 be 5m; Bed mud 16 is inserted in each treatment region layering, and every layer thickness is 150mm, fills out two-layer altogether, and interlayer arranges drainage blanket 15, and drainage blanket adopts coarse sand, and thickness is 50mm; Arrange skid resistant course 6 between bed mud 16 and domatic original soil 20, skid resistant course 6 adopts gravelly sand, and thickness is 80mm, arranges transverse drain ditch 3 between each treatment region, arranges longitudinal drainage ditch 5 downwards along domatic, and longitudinal drainage ditch 5 spacing is 6m.The bed mud fished for be placed on the platform set up on bank to not seeping water, and then carries out domatic filling.
Transverse drain ditch 3 be 300mm along domatic width, end face is higher than bed mud 16 end face 60mm, and bottom surface is 50mm lower than skid resistant course 6; In gutter, filler 14 adopts rubble, and antislide pile 4 adopts timber, the long 1.0m of stake, and stake footpath is 70mm; Waterproofing course 13 adopts clay, and wherein mixing mass ratio is the sodium bentonite of 10% and the cement of 8%, and the water mix adding 30% is evenly laid afterwards, and laying depth is 80mm.
Toe is stable to be covered body 7 and adopts free stone masonry, and building by laying bricks or stones is highly 1.0m, and pushing up along slope and building width by laying bricks or stones to direction at the bottom of slope is 1.5m; Toe is stable to be covered body 7 and arranges anchoring pile 21 to water side, and anchoring pile adopts reinforced concrete pile, and stake is long is 2.0m, and the stake length of side is 100mm; Interlayer 19 adopts rubble.
Process in the bed mud filled in district's 8 to process four district 11 on domatic and plant endemic plant bar root grass and rhizoma cyperi, plantation reed process five district 12 in.
The method was implemented in April, and the domatic PE plastic foil of covering removes by mid-May, and plant growing way is better, lasts 2 years, did not domaticly occur phenomenon of caving in, and effect is better.After testing, nitrogen and phosphorus content reduce by 65% and 72% respectively, reach the object of expection.
Embodiment 2
For bottom mud in lake process and ecological revetment
Certain lake is domatic, and the gradient is 35 degree, processes slope vegetation, to what be necessary to transplant, has carried out transplanting process; Along domatic point of three treatment regions, along domatic be except 6m except base slope process one district 8 is wide, all the other process two districts 9 and process three districts 10 wide be 4m; Bottom mud in lake 16 layer thickness that each treatment region layering is inserted is 150mm, and fill out 2 ~ 3 layers altogether, interlayer arranges drainage blanket 15, and drainage blanket 15 adopts medium sand, and thickness is 60 ~ 80mm.Skid resistant course 6 adopts gravelly sand, and thickness is 80mm.
Each treatment region longitudinal drainage ditch 5 spacing is 6m, and bottom surface is 100mm lower than domatic original soil 20.The transverse drain ditch 3 arranged between each treatment region is 300mm along domatic width, and end face is higher than bottom mud in lake 16 end face 50mm, and bottom surface is 50mm lower than skid resistant course 6; In gutter, filler 14 adopts rubble, and antislide pile 4 adopts timber, the long 1.0 ~ 1.2m of stake, and stake footpath is 70mm; Waterproofing course 13 adopts clay, and wherein mixing mass ratio is the sodium bentonite of 12% and the cement of 10%, and the water mix adding 20% is evenly laid afterwards, and laying depth is 60mm.
The bed mud fished for is placed on the interim bank platform arranged and is not extremely seeped water, and then carries out domatic filling.
Toe is stable to be covered body 7 and adopts free stone masonry, and building by laying bricks or stones is highly 0.8m, and pushing up along slope and building width by laying bricks or stones to direction at the bottom of slope is 1.0m; Anchoring pile 21 adopts reinforced concrete pile, and stake is long is 1.5m, and the stake length of side is 80mm; Interlayer 19 adopts rubble.
Plantation reed in the treatment region of bottommost, all the other treatment regions plantation purple willow, rhizoma cyperi and Ba Gencao etc.The method was implemented in June, and late July removes the domatic PE plastic foil of covering, and plant growing way is better, and last 3 years, slope stability is without caving in, and effect is better.After testing, nitrogen and phosphorus content reduce by 43% and 37% respectively, substantially reach the object of expection.
Embodiment 3
Certain lake is domatic, and the gradient is 50 degree, processes slope vegetation, to what be necessary to transplant, has carried out transplanting process; Along domatic point of four treatment regions, along domatic be except 6m except base slope process one district is wide, all the other process 2nd district, process 3rd district, process 4th district wide is 4m; Bottom mud in lake 16 layer thickness that each treatment region layering is inserted is 150mm, and fill out 3 layers altogether, interlayer arranges drainage blanket 15, and drainage blanket 15 adopts medium sand, and thickness is 80mm.Skid resistant course 6 adopts gravelly sand, and thickness is 80mm.
Each treatment region longitudinal drainage ditch 5 spacing is 8m, and bottom surface is 200mm lower than domatic original soil 20.The transverse drain ditch 3 arranged between each treatment region is 300mm along domatic width, and end face is higher than bottom mud in lake 16 end face 100mm, and bottom surface is 100mm lower than skid resistant course 6; In gutter, filler 14 adopts rubble, and antislide pile 4 adopts timber, the long 1.2m of stake, and stake footpath is 100mm; Waterproofing course 13 adopts clay, and wherein mixing mass ratio is the sodium bentonite of 12% and the cement of 10%, and the water mix adding 40% is evenly laid afterwards, and laying depth is 120mm.
The bed mud fished for is placed on the interim bank platform arranged and is not extremely seeped water, and then carries out domatic filling.
Toe is stable to be covered body 7 and adopts free stone masonry, and building by laying bricks or stones is highly 1.5m, and pushing up along slope and building width by laying bricks or stones to direction at the bottom of slope is 2.0m; Anchoring pile 21 adopts reinforced concrete pile, and stake is long is 2.0m, and the stake length of side is 150mm; Interlayer 19 adopts rubble.
Plantation reed in the treatment region of bottommost, all the other treatment regions plantation purple willow, rhizoma cyperi and Ba Gencao etc.The method was implemented in June, and late July removes the domatic PE plastic foil of covering, and plant growing way is better, and last 3 years, slope stability is without caving in, and effect is better.After testing, nitrogen and phosphorus content reduce by 43% and 37% respectively, substantially reach the object of expection.
Specific embodiment is more than disclosed to invention has been announcement; but the present invention is not limited thereto, the thinkable change of any those skilled in the art, not departing from design philosophy of the present invention and scope; to the various changes that the present invention carries out, all should within protection scope of the present invention.
Claims (10)
1. a riverbed sludge treatment in situ and ecological bank protecting method, it is characterized in that: lake is along the river pushed up at the bottom of slope to water side domatic from slope and is divided into 3 to 6 treatment regions, between process one district, top, slope and dam crest road, catch basin is set, and throughout between reason district, transverse drain ditch is set, at the bottom of catch basin and slope, between waters, longitudinal drainage ditch is set, manage layering in district throughout and insert riverbed sludge, and manage planting plants in the riverbed sludge inserted in district throughout, lake, river is less than 60 degree to the slope angle of water one side slope, in treatment region, the higher slice of domatic original soil inserts riverbed sludge, between every layer of riverbed sludge, drainage blanket is set, between the riverbed sludge of bottom and domatic original soil, skid resistant course is set, PE plastic sheeting is laid on the riverbed sludge surface of placing domatic top layer.
2. a kind of riverbed sludge treatment in situ according to claim 1 and ecological bank protecting method, it is characterized in that the transverse drain ditch arranged between described each treatment region arranges antislide pile to water surface side, arrange filler in transverse drain ditch, bottom side and the antislide pile side of filler arrange waterproofing course; Bottom and the both sides of described longitudinal drainage ditch arrange waterproofing course.
3. a kind of riverbed sludge treatment in situ according to claim 1 and ecological bank protecting method, it is characterized in that treatment region at the bottom of described slope is provided with near the toe position of the water surface that toe is stable covers body, toe is stable covers body arranged outside anchoring pile, and toe is stablized and covered body and arrange interlayer near the side of anchoring pile.
4. a kind of riverbed sludge treatment in situ according to claim 1 and ecological bank protecting method, it is characterized in that described slope is pushed up each treatment region at the bottom of slope wide along line of slope is 2 ~ 8m; Riverbed sludge for fish in lake, river, and be placed to after not seeping water, treatment region is inserted in layering, and each layer thickness is 150 ~ 300mm, and filling-up thickness is 300 ~ 600mm; Longitudinal drainage ditch spacing is 4 ~ 10m, and the bottom of longitudinal drainage ditch is lower than domatic original soil 100 ~ 200mm.
5. a kind of riverbed sludge treatment in situ according to claim 1 and ecological bank protecting method, it is characterized in that described drainage blanket adopts medium sand, coarse sand or medium coarse sand, laying depth is 30 ~ 100mm.
6. a kind of riverbed sludge treatment in situ according to claim 1 and ecological bank protecting method, it is characterized in that described skid resistant course adopts rubble or gravelly sand, particle diameter is less than 50mm, and laying depth is 50 ~ 100mm.
7. a kind of riverbed sludge treatment in situ according to claim 1 and ecological bank protecting method, it is characterized in that described PE covered rearing with plastic film riverbed sludge surface, the cover time is 1 ~ 2 month.
8. a kind of riverbed sludge treatment in situ according to claim 1 and ecological bank protecting method, it is characterized in that described transverse drainage bank line of slope width is 150 ~ 500mm, end face is higher than riverbed sludge end face 50 ~ 100mm, and bottom surface is lower than skid resistant course 50 ~ 100mm.
9. a kind of riverbed sludge treatment in situ according to claim 2 and ecological bank protecting method, it is characterized in that described filler adopts rubble or gravelly sand, particle diameter is not more than 80mm; Antislide pile adopts timber or reinforced concrete pile, the long 1.0 ~ 1.5m of stake, and stake footpath or the length of side are 70 ~ 100mm; Waterproofing course adopts clay, and wherein mixing mass ratio is the sodium bentonite of 7 ~ 15% and the cement of 5 ~ 15%, and the water mix adding 20 ~ 40% is evenly laid afterwards, and laying depth is 60 ~ 120mm.
10. a kind of riverbed sludge treatment in situ according to claim 3 and ecological bank protecting method, it is characterized in that the stable body that covers of described toe adopts free stone masonry, building by laying bricks or stones is highly 0.8 ~ 1.5m, and along top, slope, at the bottom of slope, width is built in direction by laying bricks or stones is 1.0 ~ 3.0m; Toe is stable to be covered body and arranges anchoring pile to water side, and anchoring pile adopts timber or reinforced concrete pile, and stake is long is 1.5 ~ 3.0m, and stake footpath or the length of side are 80 ~ 150mm; Interlayer adopts rubble, and particle diameter is for being not more than 100mm.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105970979A (en) * | 2016-05-10 | 2016-09-28 | 河海大学 | Ecological slope protection method based on sludge solidification soil |
| CN106430868A (en) * | 2016-08-02 | 2017-02-22 | 东北师范大学 | Cover treatment method for reducing release of river-lake sediment pollutants |
| CN108035304A (en) * | 2017-12-25 | 2018-05-15 | 深圳市铁汉生态环境股份有限公司 | A kind of sludge handling method and ecological revetment structure |
| CN110552322A (en) * | 2019-08-28 | 2019-12-10 | 广东水利电力职业技术学院（广东省水利电力技工学校） | Flat-laying type slope protection structure utilizing river channel silt cleaning materials and construction method thereof |
| CN111778920A (en) * | 2020-07-30 | 2020-10-16 | 山东建筑大学 | Near-in-situ three-dimensional ecological restoration system and method for polluted river dredging sediment |
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| CN110552322A (en) * | 2019-08-28 | 2019-12-10 | 广东水利电力职业技术学院（广东省水利电力技工学校） | Flat-laying type slope protection structure utilizing river channel silt cleaning materials and construction method thereof |
| CN111778920A (en) * | 2020-07-30 | 2020-10-16 | 山东建筑大学 | Near-in-situ three-dimensional ecological restoration system and method for polluted river dredging sediment |
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