CN108575580A - A kind of plate and frame river bottom mud ecological revetment and preparation method for sponge urban construction - Google Patents
A kind of plate and frame river bottom mud ecological revetment and preparation method for sponge urban construction Download PDFInfo
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- CN108575580A CN108575580A CN201810038947.XA CN201810038947A CN108575580A CN 108575580 A CN108575580 A CN 108575580A CN 201810038947 A CN201810038947 A CN 201810038947A CN 108575580 A CN108575580 A CN 108575580A
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- Prior art keywords
- mud
- ecological
- plate
- river bottom
- urban construction
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G31/00—Soilless cultivation, e.g. hydroponics
-
- 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
Abstract
The invention discloses a kind of plate and frame river bottom mud ecological revetments and preparation method for sponge urban construction, the bank protection includes the slopes being inclined to set, set on slope surface, stepped several ecological basins, several ecological module units are equipped in the ecology basin, the ecological module unit is equipped with metalling, mud and water plant layer successively from bottom to up；Its preparation method is to establish slopes, and several ecological basins are arranged in the slopes, fills metalling, mud and water plant layer into the ecology basin respectively, you can.The remarkable advantage of the present invention is the bank protection by using whole ecological revetment system; it is capable of the Ecological Stabilization structure of effective protection side slope; and the value of river bottom mud is taken full advantage of when preparing; form the ecological basin for including " bed mud conditioned soil+Porous permeable bricks+amphibious plant " ecomodel; have the characteristics that easy for construction, ecological beauty, mud reuse ratio are high and easy to maintain, at low cost.
Description
Technical field
The invention belongs to river corridor restoration field more particularly to a kind of plate and frame river bottoms for sponge urban construction
Mud ecological revetment and preparation method.
Background technology
China In Middle And Lower Reaches of Changjiang River be all the time rainwater multiplely, thus bring up the south of the lower reaches of the Yangtze River be distributed it is dense each
Class branch water system, and since southern area of Jiangsu Province is mostly Plain, most of rainwater often via Urban Rainwater Pipe Networks be discharged into arround water body,
Rainy season river average water face height is caused significantly to rise.In addition, the mud that korneforos is accumulated for a long time is often to the unimpeded flowing of water body
Larger resistance is generated, causes river water can not proper flow.Therefore, the mode that Ha Noi dredging is usually taken dredges river and by building
It makes bank protection and maintenance is increased to riverbank.Channel cleanout can dredge river, reduce water level, rushed to Channel slope to reduce water body
Brush, but cost is higher, and mud recycle value can not be promoted.Though traditional bank engineering such as cement bank protection, piling bank protection etc. can be compared with
Side slope avalanche phenomenon is reduced to limits, protection side slope protects against the water level constantly risen and washes away, but it usually destroys river
Road periphery plant, makes the ecosystem arround river water by expendable destruction.Adaptation to local conditions is taken economical and practical, naturally beautiful
And the plate and frame river bottom mud ecological bank protecting method with self-loopa function is the current inexorable trend for carrying out dredging waterway.
At present China ecological vestige continuously improve, but lay particular emphasis on from superstructure face, such as Patent No. more
201621213261.2 utility model discloses a kind of hydraulic engineering ecological protection slope, this bank protection technique is relatively complicated, expense compared with
Height, and without carrying out river dredging, the water level for not solving fundamentally to rise steadily washes away river, is more not carried out river
The resources advantage of bed mud.The utility model of Patent No. 201621117910.9 discloses a kind of novel ecological revetment, this shield
Slope focuses on improving ecological revetment matrix, and the manufacture difficulty of revetment brick is higher, and process is complex, and the brick body of this bank protection
Density is larger, does not play vegetation slope pavement effect to greatest extent.
Invention content
Goal of the invention：The first object of the present invention is to provide a kind of plate and frame river bottom mud life for sponge urban construction
State bank protection, the bank protection are capable of the Ecological Stabilization structure of effective protection side slope by using whole ecological revetment system；
The second object of the present invention is to provide the preparation method of the bank protection, and this method takes full advantage of the valence of river bottom mud
Value, forms the ecological basin for including " bed mud conditioned soil+Porous permeable bricks+amphibious plant " ecomodel, has construction party
Just, ecological beauty, the features such as mud reuse ratio is high, and it is easy to maintain, at low cost.
Technical solution：The present invention is used for the plate and frame river bottom mud ecological revetment of sponge urban construction, including inclined sets
The slopes set are set to slope surface, stepped several ecological basins, several ecological module units, institute are equipped in the ecology basin
It states ecological module unit and is equipped with metalling, mud and water plant layer successively from bottom to up.
Furtherly, ecological basin is circumferentially enclosed by wedge-shaped porous preforming brick and is made.Novel porous special precast brick is to slope
Face carries out ecological modular processing, and uses wedge-shaped, and when construction is inserted directly into plain soil, and slope surface difference in height is utilized to constitute ecology
Module volume, convenient for construction, and entire work progress does not apply any artificial material, and landfill mud is convenient and simple, at modularization
Reason can effectively prevent fluidity pollutant further to spread, and it is good to seep water and intercept soil effect.Preferably, the depth of the ecology basin is
200~300mm is conducive to the leakage of ponding in ecological basin in this depth bounds, and can resist rainwash, provides plant
By the amount of soil needed for growth.
The method that the present invention prepares the plate and frame river bottom mud ecological revetment for sponge urban construction, including walk as follows
Suddenly：Slopes are established, several ecological basins are set in the slopes, respectively filling metalling, mud and aquatic into the ecology basin
Layer of plants.
It further says, the preparation method of mud includes the following steps：Ha Noi dredging is extracted, cation is added in mud
Polyacrylamide solution, 1~1.5h of stirring at low speed, subsequent addition powder slag and calcium carbide waste slag, control mud pH value 7.0~
9.0, after stirring, it is placed on metalling.
The present invention is produced by the way that positively charged cationic polyacrylamide (CPAM) is added with negatively charged riverway sludge
Raw charging neutrality reaction, changes the hydrophobic property of mud so that is adsorbed in muck surface attached water and its hole elutriation of inside
Go out.A certain amount of powder slag and calcium carbide waste slag is then added, since the mineral facies in powder slag are tricalcium silicate, silicic acid two
Calcium, calcium aluminoferrite etc. can generate flocculation and neutralization reaction, the precipitation of reinforcement sludge pore water, while combination reaction with sludge
Calcium hydroxide, iron hydroxide and the magnesium hydroxide of generation have hydration curing characteristic, can further increase the solidification effect of mud
Fruit.Calcium carbide waste slag main component is calcium hydroxide, and high alkalinity, water-retaining property is strong, is acted synergistically with powder slag, and mud is being reinforced
On the basis of intensity, the performance of mud conditioned soil is adjusted, it is made to be more conducive to vegetation growth.
Furtherly, the mass concentration of cationic polyacrylamide solution can be 0.03~0.05g/L, with mud
Volume ratio can be 0.8~1:100, muck surface attached water and its hole of inside can be effectively precipitated in the concentration and volume ratio
Water；The mass-volume concentration of powder slag and mud ratio can be 50~100:1, the mass-volume concentration ratio of calcium carbide waste slag and mud
Can be 0.8~1:100, which can enhance the solidification effect of mud, increase the intensity of mud, and can increase in mud
Nutritional ingredient.
Advantageous effect：Compared with prior art, remarkable advantage of the invention is：The protective slope structure is simple, convenient for safeguarding (only
Ecological brick position need to suitably be adjusted), can not only effective protection side slope Ecological Stabilization structure, and can be to mud waste water
Filtering in time, rainwater can pass through several ladder modules by " amphibious plant → improvement mud → rubble filters " when rainwater is more
It successively handles, finally flows slowly into water body, to which rainwater break the whole up into parts, preliminary purification is carried out to initial rainwater.
When method using the present invention prepares the bank protection, river slope surface can be remolded according to river actual conditions,
And by carrying out ecological modular processing to slope surface with novel porous special precast brick；River is cleared up in combination with channel cleanout
On the one hand road is dredged and has been removed to riverway sludge so that streamflow is unimpeded, and the water surface declines, and reduces side slope
It corrodes, solves riverway sludge and solve difficult, of high cost and issuable secondary pollution problems, on the other hand by becoming silted up
Mud is improved, the good test effects such as intensity of conditioned soil, while with containing in river bottom mud and dump slag, calcium carbide waste slag
Nutritional ingredient is high, can supply sufficient nutriment so that mud constitutes ecological vegetable medium body, on the mud of improvement
Amphibious plant is planted, the utilization rate of riverway sludge is larger improved, turns waste into wealth, and the amphibious plant planted is in U.S.
The water body with arround forms the ecosphere while seeing greening, root system ambient microorganisms and conditioned soil, gravel at natural ecological film, into
One step controls the pollution sources that various waste water flow into river, and the slope surface soil body, structure are fixed in the interdependence of root system of plant and conditioned soil
Build stable ecological slope protection structure.
Description of the drawings
Fig. 1 is the plate and frame river bottom mud ecological slope protection structure schematic diagram of the present invention；
Fig. 2 is the enlarged drawing in the portions A in Fig. 1；
Specific implementation mode
Technical scheme of the present invention is described in further details with reference to the accompanying drawings and embodiments.
As shown in Figure 1, the present invention is used for the plate and frame river bottom mud ecological revetment of sponge urban construction, including inclined set
The slopes 1 set be set to it is 1 surface of slopes, stepped it is several ecological basin 2 made of system is circumferentially enclosed by wedge-shaped porous preforming brick,
Several ecological modules Unit 3 is equipped in the ecology basin 2, ecological module Unit 3 is equipped with metalling 4, becomes silted up successively from bottom to up
Mud layer 5 and water plant layer 6, as shown in Figure 2.
Embodiment 1
The method that the present invention prepares the plate and frame river bottom mud ecological revetment for sponge urban construction, including walk as follows
Suddenly：
(1) mud is improved：
A. sludge pump is utilized tentatively to remove the mud of bottom of river channel, the river of wide 5m, every meter of dredging 4m3Mud；
B. the CPAM solution that mass concentration is 0.05g/L, stirring at low speed 1h are added in mud, while adding 200kg powder
As modifying agent, control mud pH value 7.0 obtains about 2m for last slag, 2kg calcium carbide waste slags3Mud conditioned soil；Wherein, CPAM
The addition of solution and the volume ratio of mud are 1:100.
(2) river bottom mud ecological revetment is built：
A. river slope surface standardization leveling, river slope surface is levelling, after precipitation, compacting element soil, simultaneously according to slope surface actual conditions
Consider the infrastructure such as peripheral path, building, establishes the slopes 1 of height h=4m, width D=5m；
B. ecological basin 2 is built by Prefabricated porous brick in the slope of slopes 1, forming difference in height using slope constitutes ditch
Slot, rams in flat groove element soil, forms the ecological basin 2 that depth is 300mm per side slope, and the slope surface of 5m wide is arranged 3 groups of ladders lifes altogether
State basin 2, every group of wide 1.2m of ladder；
C. cloth builds permeable layer in ecological basin 2, forms preliminary filtering, i.e., thickness 50mm blotters of arranging in ecological basin 2
4；
D. above-mentioned conditioned soil is inserted in ecological basin 2, each ecology basin 2 inserts 0.3m3Conditioned soil is placed in blotter 4
On；
E. amphibious plant is uniformly planted in mud conditioned soil.
In conclusion the river of high H=4m, the slope surface of width D=5m and width 5m, every meter is removed mud 4m3, it can be filled with life altogether
2 both sides of state basin totally 6 groups of ladders are more than 90% mud in fixed river.
Embodiment 2
The method that the present invention prepares the plate and frame river bottom mud ecological revetment for sponge urban construction, including walk as follows
Suddenly：
(1) mud is improved：
A. sludge pump is utilized tentatively to remove the mud of bottom of river channel, the river of wide 8m, every meter of dredging 6m3Mud；
B. the CPAM solution that mass concentration is 0.05g/L is added in mud, stirring at low speed 1h then adds 300kg powder
As modifying agent, control mud pH value 7.5 obtains about 3.0m for last slag, 3kg calcium carbide waste slags3Mud conditioned soil；Wherein,
The addition of CPAM solution and the volume ratio of mud are 1:100.
(2) river bottom mud ecological revetment is built：
A. river slope surface standardization leveling, river slope surface is levelling, after precipitation, compacting element soil, simultaneously according to slope surface actual conditions
Consider the infrastructure such as peripheral path, building, establishes the slopes 1 of height h=6m, width D=10m；
B. ecological basin 2 is built by Prefabricated porous brick in the slope of slopes 1, forming difference in height using slope constitutes ditch
Slot, rams in flat groove element soil, forms the ecological basin 2 that depth is 300mm per side slope, and the slope surface of 5m wide is arranged 7 groups of ladders lifes altogether
State basin 2, every group of wide 1m of ladder；
C. cloth builds permeable layer in ecological basin 2, forms preliminary filtering, i.e., thickness 50mm blotters of arranging in ecological basin 2
4；
E. above-mentioned conditioned soil is inserted in ecological basin 2, each ecology basin 2 inserts 0.3m3Conditioned soil is placed in blotter 4
On；
F. amphibious plant is uniformly planted in mud conditioned soil.
In conclusion the river of high H=6m, the slope surface of width D=10m and width 8m, every meter is removed mud 6m3, can be filled with altogether
Totally 14 groups of 2 both sides of ecological basin are more than 90% mud in fixed river.
Embodiment 3
The method that the present invention prepares the plate and frame river bottom mud ecological revetment for sponge urban construction, including walk as follows
Suddenly：
(1) mud is improved：
A. sludge pump is utilized tentatively to remove the mud of bottom of river channel, the river of wide 12m, every meter of dredging 10m3Mud；
B. the CPAM solution of a concentration of 0.05g/L is added in mud, stirring at low speed 1h then adds 500kg powder steels
As modifying agent, control mud pH value 8.0 obtains about 5.0m for slag, 5kg calcium carbide waste slags3Mud conditioned soil；Wherein, CPAM is molten
The addition of liquid and the volume ratio of mud are 1:100.
(2) river bottom mud ecological revetment is built：
A. river slope surface standardization leveling, river slope surface is levelling, after precipitation, compacting element soil, simultaneously according to slope surface actual conditions
Consider the infrastructure such as peripheral path, building, establishes the slopes 1 of height h=9m, width D=15m；
B. ecological basin is built by Prefabricated porous brick in the slope of slopes 1, forming difference in height using slope constitutes ditch
Slot, rams in flat groove element soil, forms the ecological basin 2 that depth is 300mm per side slope, and the slope surface of 5m wide is arranged 10 groups of ladders lifes altogether
State basin 2, every group of wide 1m of ladder；
C. cloth builds permeable layer in ecological basin 2, forms preliminary filtering, i.e., thickness 50mm blotters of arranging in ecological basin 2
4；
D. above-mentioned conditioned soil is inserted in ecological basin 2, each ecology basin 2 inserts 0.3m3Conditioned soil is placed in blotter
On；
E. amphibious plant is uniformly planted in mud conditioned soil.
In conclusion the river of high H=9m, the slope surface of width D=15m and width 12m, every meter is removed mud 10m3, can fill out altogether
Totally 20 groups of 2 both sides of state basin are freeed, are more than 90% mud in fixed river.
Embodiment 4
Basic step is same as Example 1, the difference is that：It is 0.03g/L's that mass concentration is added in mud
CPAM solution, control mud pH value 9.0, stirring at low speed 1.5h, while by every cubic metre of mud add 50kg powder slag,
0.8kg calcium carbide waste slags obtain the mud conditioned soil of certain volume as modifying agent, wherein the addition and mud of CPAM solution
Volume ratio be 0.8:100, the depth of the ecological basin 2 of preparation is 200mm.
Claims (9)
1. a kind of plate and frame river bottom mud ecological revetment for sponge urban construction, including the slopes (1) that are inclined to set,
It is characterized in that：The bank protection further includes being set in slopes (1) surface, stepped several ecological basins (2), the ecology basin (2)
There are several ecological modules (3) unit, ecological module (3) unit to be equipped with metalling (4), mud (5) successively from bottom to up
And water plant layer (6).
2. the plate and frame river bottom mud ecological revetment according to claim 1 for sponge urban construction, it is characterised in that：
The ecology basin (2) is circumferentially enclosed by wedge-shaped porous preforming brick makes.
3. the plate and frame river bottom mud ecological revetment according to claim 1 for sponge urban construction, it is characterised in that：
The depth of the ecology basin (2) is 200~300mm.
4. a kind of method preparing the plate and frame river bottom mud ecological revetment described in claim 1 for sponge urban construction,
It is characterized in that including the following steps：Slopes (1) are established, several ecological basins (2) are set in the slopes (1), respectively to the ecology
Filling metalling (4), mud (5) and water plant layer (6) in basin (2).
5. the method according to claim 4 for preparing the plate and frame river bottom mud ecological revetment for sponge urban construction,
It is characterized in that：The preparation method of the mud (5) includes the following steps：Ha Noi dredging is extracted, cation is added in mud
Polyacrylamide solution, 1~1.5h of stirring at low speed, subsequent addition powder slag and calcium carbide waste slag, control mud pH value 7.0~
9.0, after stirring, it is placed on metalling (4).
6. the method for preparing the plate and frame river bottom mud ecological revetment for sponge urban construction according to claim 5,
It is characterized in that：The mass concentration of the cationic polyacrylamide solution is 0.03~0.05g/L.
7. the method for preparing the plate and frame river bottom mud ecological revetment for sponge urban construction according to claim 5,
It is characterized in that：The volume ratio of the cationic polyacrylamide solution and mud is 0.8~1:100.
8. the method for preparing the plate and frame river bottom mud ecological revetment for sponge urban construction according to claim 5,
It is characterized in that：The mass-volume concentration ratio of the powder slag and mud is 50~100:1.
9. the method for preparing the plate and frame river bottom mud ecological revetment for sponge urban construction according to claim 5,
It is characterized in that：The mass-volume concentration of the calcium carbide waste slag and mud ratio is 0.8~1:1.
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| CN201810038947.XA CN108575580A (en) | 2018-01-16 | 2018-01-16 | A kind of plate and frame river bottom mud ecological revetment and preparation method for sponge urban construction |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109305744A (en) * | 2018-11-27 | 2019-02-05 | 上海城市水资源开发利用国家工程中心有限公司 | A kind of black and odorous water biological renovation method and system |
| CN109429610A (en) * | 2019-01-04 | 2019-03-08 | 杰瑞(莱州)矿山治理有限公司 | It is a kind of to carry out the artificial soil and its reclamation method that land reclamation uses using gold mine tailings slag backfill mining area |
| CN111519685A (en) * | 2020-05-11 | 2020-08-11 | 李冰梅 | River channel dredging structure and dredging method thereof |
| CN113598012A (en) * | 2021-08-05 | 2021-11-05 | 中建生态环境集团有限公司 | Organic base material for ecological greening of rock slope and preparation method and application thereof |
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| CN106242753A (en) * | 2016-07-28 | 2016-12-21 | 天津海泰市政绿化有限公司 | A kind of mellow earth and preparation method thereof |
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| CN103771935A (en) * | 2013-03-05 | 2014-05-07 | 杭州爱立特生态环境科技有限公司 | Method for preparing plant nutrient soil |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109305744A (en) * | 2018-11-27 | 2019-02-05 | 上海城市水资源开发利用国家工程中心有限公司 | A kind of black and odorous water biological renovation method and system |
| CN109429610A (en) * | 2019-01-04 | 2019-03-08 | 杰瑞(莱州)矿山治理有限公司 | It is a kind of to carry out the artificial soil and its reclamation method that land reclamation uses using gold mine tailings slag backfill mining area |
| CN111519685A (en) * | 2020-05-11 | 2020-08-11 | 李冰梅 | River channel dredging structure and dredging method thereof |
| CN113598012A (en) * | 2021-08-05 | 2021-11-05 | 中建生态环境集团有限公司 | Organic base material for ecological greening of rock slope and preparation method and application thereof |
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Application publication date: 20180928 |