CN108691301A - Ecological revetment based on dredged mud in-situ solidifying and preparation method - Google Patents
Ecological revetment based on dredged mud in-situ solidifying and preparation method Download PDFInfo
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- CN108691301A CN108691301A CN201810588535.3A CN201810588535A CN108691301A CN 108691301 A CN108691301 A CN 108691301A CN 201810588535 A CN201810588535 A CN 201810588535A CN 108691301 A CN108691301 A CN 108691301A
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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
- E02B3/128—Coherent linings made on the spot, e.g. cast in situ, extruded on the spot
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
- C04B28/142—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements
- C04B28/144—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being a flue gas desulfurization product
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/0068—Ingredients with a function or property not provided for elsewhere in C04B2103/00
- C04B2103/0078—Sorbent materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/60—Agents for protection against chemical, physical or biological attack
- C04B2103/65—Water proofers or repellants
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00732—Uses not provided for elsewhere in C04B2111/00 for soil stabilisation
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/2038—Resistance against physical degradation
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/29—Frost-thaw resistance
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
Abstract
The invention discloses a kind of ecological revetment and preparation method thereof based on dredged mud in-situ solidifying, preparation method include:1)By using Preparation equipment using bed mud as the base plinth of ecological revetment;2)The mud dredged will be needed to suck in vehicle-mounted agitating device, it stirs and adds consolidating agent etc. and form curing sludge soil paste material, it injects in imitation wood stake shore protection template, it is prepared into ecological revetment, in curing sludge soil paste material, silt consolidation agent, mud, the porous lime-ash of microorganism colonization, foaming agent, rheological agent mass ratio be(5%~15%):(70%~90%):(5%~15%):(0.1%~2%):(0.1%~2%).The present invention is ecological, safe, practical, non-secondary pollution and the low ecological revetment and preparation method of overall cost.
Description
Technical field
It is specifically a kind of in situ using dredged mud the present invention relates to comprehensive utilization of resources and water conservancy environment-friendly engineering technical field
Cured ecological revetment and preparation method.
Background technology
The problems such as in order to maintain the normal flood discharge of river and lake and unimpeded and improvement water quality, China can all carry out on a large scale every year
River and lake dredging dredging, thus generate a large amount of Dredged bed mud.Due to its natural moisture content of dredged mud height, organic matter and heavy metal
Content is high, compressibility is big, shearing strength is low, has thixotropy and fluidised form, causes its transport difficult, landfill stacking that can occupy big
The land resource of amount and to easily cause secondary pollution, engineering properties poor, cannot directly be applied by engineering, therefore, training of channel bottom
The problems such as mud harmless treatment and recycling are applied becomes international problem, many countries also expend thus huge funds carry out it is related
Research and processing.Converting discarded bed mud to the regeneration soil resource that can be utilized by technical finesse becomes current special both at home and abroad
The main flow direction of family and scholar's research.
It throws mud processing currently, the method for disposal of traditional river and lake dredging bed mud mainly has, reclamation by pumping filling, physics dehydration, burn
Deng these traditional methods of disposal, which exist, occupies valuable land resource, and freight is huge, and processing cost is high, process cycle
Long, the harmful substances such as heavy metal in mud may cause secondary pollution problems to environment.Although chemical curing method can lead to
The formula for controlling consolidating agent and volume are crossed to meet the needs of various engineerings, but turnover is needed to handle, transportation cost is higher.
Invention content
The purpose of the present invention is to provide a kind of ecological revetment and preparation method using dredged mud in-situ solidifying, for working as
Soil erosion that the bed mud recycling of preceding China town and country small and medium river channel generally existing is difficult, processing cost is high, bank slope caves in
Seriously, ecological environment problems such as channel aggradation, Heavy Metal Pollution in Sediments and the problems such as the bank protection severe water and soil erosion of lake, warp
Cross repeatedly the research and probe ecological revetment low with an ecology of practice demonstration, safe, practical, non-secondary pollution and overall cost
Preparation method, pouring the mud after solidification, there is high intensity, porosity, water stability, heavy metal adsorption and anti-current water to wash away
Property, meet the related request of bank protection structure, and relative to rigid, hards shore protections such as traditional cement concrete sheet pile, timbers
With good water conservation, the ecosystem characterization to purify water, meet the function of River Landscape optimization and eco-environment restoration, it is real
The New control measures that dredged mud original position recycling is applied and restoration of the ecosystem is combined are showed, to solve to propose in above-mentioned background technology
The problem of.
To achieve the above object, the present invention provides the following technical solutions:
The preparation method of ecological revetment based on dredged mud in-situ solidifying, includes the following steps:
(1)Sloping bank bed mud is subjected to stir in situ, solidification, natural curing, prepares substrate;
(2)The stake of supporting imitation wood is as shore protection template in substrate;
(3)Under stirring, silt consolidation agent, the porous lime-ash of microorganism colonization, foaming agent and rheological agent are added into dredged mud, is obtained
Curing sludge soil paste material;
(4)Curing sludge soil paste material is injected in shore protection template, by flattening, conserving, is obtained based on dredged mud in-situ solidifying
Ecological revetment.
The invention also discloses the ecological revetment preparation methods of curing sludge soil paste material, include the following steps:
(1)Sloping bank bed mud is subjected to stir in situ, solidification, natural curing, prepares substrate;
(2)The stake of supporting imitation wood is as shore protection template in substrate;
(3)Under stirring, silt consolidation agent, the porous lime-ash of microorganism colonization, foaming agent and rheological agent are added into dredged mud, is obtained
Ecological revetment curing sludge soil paste material.
In above-mentioned technical proposal, in the curing sludge soil paste material, silt consolidation agent, mud, the porous ash of microorganism colonization
Slag, foaming agent, rheological agent mass ratio be(5%~15%):(70%~90%):(5%~15%):(0.1%~2%):(0.1%~
2%), solve traditional timber shore protection bank slope severe water and soil erosion, concrete sheet-piling without plant natural disposition, river bed dredged mud can not be in situ
The ecological environment problems such as recycling, while aquatic ecosystem and terrestrial ecosystems have been got through, so that shore protection is conserved water
Source purifies water.
In above-mentioned technical proposal, the silt consolidation agent includes alumino-silicate clinker, quick lime, desulfurated plaster, higher ridge
Soil, bentonite, waterproofing agent, anti-dispersant, adsorbent, alkali-activator;The foaming agent is trepanning anion surfactant type
Foaming agent;The rheological agent is powdery polycarboxylic acid water-reducing agent;The preparation method of the porous lime-ash of microorganism colonization is, will be biological
Matter lime-ash is added in mixed liquor, is impregnated, is rinsed at 60 DEG C, is dry, obtaining the porous lime-ash of microorganism colonization;The mixed liquor
Containing formic acid that volumetric concentration is 3.2 %, mass concentration be 2% hyaluronic acid, mass concentration be 0.8% 4- methylbenzene first
Alcohol, surplus are water;The biomass lime-ash, mixed liquor mass ratio be 1: 2.5;The preferred waterproofing agent is latex powder, phenol
Polymer emulsion made of urea formaldehyde, polyvinyl alcohol composite;The adsorbent is diatomite, phosphorus lime and ethylenediamine tetra-acetic acid two
The compound of sodium;The alumino-silicate clinker, quick lime, desulfurated plaster, metakaolin, bentonite, waterproofing agent, anti-dispersant,
Adsorbent, alkali-activator mass ratio be(30%~40%):(10%~20%):(5%~10%):(10%~20%):(5%~8%):
(3%~8%):(1%~2%):(2%~5%):(2%~5%).Obtained product has good water proofing property, the ecological revetment of preparation
With superior water stability.
In above-mentioned technical proposal, step(4)In, by flattening, conserving, shore protection template is finally removed, is obtained based on dredging
The ecological revetment of mud in-situ solidifying;The maintenance is natural curing 7 days.
The present invention further discloses bases prepared by the preparation method of the above-mentioned ecological revetment based on dredged mud in-situ solidifying
In life prepared by the ecological revetment of dredged mud in-situ solidifying and the preparation method of above-mentioned ecological revetment curing sludge soil paste material
State shore protection curing sludge soil paste material.
In the present invention, the porous lime-ash of microorganism colonization is obtained by existing biomass lime-ash by processing, not only has lime-ash
Porous, environmentally friendly advantage, more important is after surface treatment stable entirety can be formed with components such as dredged mud, consolidating agents,
Under relatively, directly uses biomass lime-ash or can reduce the strong of shore protection using the biomass lime-ash Jing Guo existing surface treatment
Degree.
The present invention further discloses a kind of silt consolidation agent, the silt consolidation agent includes that mass ratio is(30%~40%)
:(10%~20%):(5%~10%):(10%~20%):(5%~8%):(3%~8%):(1%~2%):(2%~5%):(2%~5%)
Alumino-silicate clinker, quick lime, desulfurated plaster, metakaolin, bentonite, waterproofing agent, anti-dispersant, adsorbent, alkali-activated carbonatite
Agent;The waterproofing agent is polymer emulsion made of latex powder, phenolic resin, polyvinyl alcohol composite;The adsorbent is diatom
The compound of soil, phosphorus lime and disodium ethylene diamine tetraacetate.Silt consolidation agent is a kind of is used under restoration of the ecosystem environment-friendly type water not
Disperse silt consolidation agent, after the cation, anion contact in consolidating agent and soil in calcareous material, polymerization, thickening occurs
Reaction forms the latticed polymer chain being cross-linked with each other, package connection mud particles and filler particles hole, until entire soil
System gel and to cure bonding integral, is conserved by curing period with the mode of hygrometric state natural curing, has good water stabilization
Property, frost resistance, scour resistance and resistance to ag(e)ing.
The present invention further discloses above-mentioned silt consolidation agent in preparing the ecological revetment based on dredged mud in-situ solidifying
Application;Above-mentioned ecological revetment curing sludge soil paste material answering in preparing the ecological revetment based on dredged mud in-situ solidifying
With.
Specifically, the present invention may comprise steps of using the preparation method of the ecological revetment of dredged mud in-situ solidifying:
1)By existing equipment, the bed mud of river and lake side slope bottom is subjected to stir in situ and flattens solidification, natural curing in water
Base plinth as ecological bank protection structure system;
2)Supporting imitation wood stake shore protection template on the basis of bottom in water, the silt dredged will be needed by recycling machinery to inhale mud equipment in river and lake
Mud sucks in vehicle-mounted agitating device, dredged mud stir in vehicle-mounted agitating device and by metering system addition consolidating agent, micro-
The porous lime-ash of bio-film colonization, foaming agent and rheological agent are sufficiently stirred and are modulated into the curing sludge soil paste feed liquid with mobility,
It is transported in the good imitation wood stake shore protection template of supporting in water by pumping installations, natural Health preservation is torn open after 7 days in water after artificial leveling
Mould is prepared into ecological revetment.
Compared with prior art, the beneficial effects of the invention are as follows:
1. the present invention is repaired using a kind of environment protection ecologic after consolidating agent and river and lake dredging bed mud fully combine, consolidating agent its from
Body occurs hydration reaction and generates the crystal such as entringite, while consolidating agent connects with cation, the anion in calcareous material in soil
After touching, polymerization, thickening reaction occurs, forms the latticed polymer chain being cross-linked with each other, package connection mud particles are simultaneously filled
Pellet pores, until entire soil system gel and to cure bonding integral, passes through curing period with the mode of hygrometric state natural curing
Maintenance has good water stability, frost resistance, scour resistance and resistance to ag(e)ing;
2. ecological revetment prepared by the present invention meets bank protection structure indices requirement, and relative to traditional coagulating cement
The ecosystem characterization that the rigid, hards shore protection such as native sheet pile, timber has good water conservation, purifies water gives birth to and brings up for animals and plants and dwells
Breath provides place;
3. containing the porous lime-ash of microorganism colonization in ecological revetment prepared by the present invention, there is certain porosity, not only purify
Water quality, and aquatic ecosystem and terrestrial ecosystems have been got through, so as to carry out the exchange of substance, energy, information, have
Significant edge effect can provide the space of existence and procreation for various aquatiles, while to improving bio-diversity, administering
Soil erosion poised river slope, regulates the climate and beautifies the environment, carries out tourist activity and have important realistic meaning, meets river
The function of Landscape optimization and eco-environment restoration;Realize the improvement that dredged mud original position recycling is applied and restoration of the ecosystem is combined
New departure has good social benefit, economic benefit and environmental benefit.
Description of the drawings
Fig. 1 is riverbank structural schematic diagram;
Wherein, road 1, mellow earth bank protection 2, mellow earth shore protection 3, river water 4, substrate 5.
Specific implementation mode
Embodiment one
Silt consolidation agent is a kind of for being regardless of scattered silt mud consolidating agent, composition and mass parts under restoration of the ecosystem environment-friendly type water:
Alumino-silicate clinker 30%
Quick lime 15%
Desulfurated plaster 10%
Metakaolin 20%
Bentonite 8%
Waterproofing agent 7%
Anti-dispersant 2%
Adsorbent 3%
Alkali-activator 5%
Wherein waterproofing agent is polymer emulsion made of 30% latex powder, 60% phenolic resin, 10% polyvinyl alcohol composite;Adsorbent
It is compounded by 50% diatomite, 35% phosphorus lime and 15% disodium ethylene diamine tetraacetate;Other components are all commercial products.
1 consolidating agent toxicity of lixivium test result of table
Table 1 is the silt consolidation agent the performance test results that configure for the first time of the present invention, by it can be seen that, it is of the invention to be repaiied for ecology
Meet GB 3838-2002 regardless of the detection of scattered silt mud consolidating agent sample toxicity of lixivium under multiple environment-friendly type water"Surface water environment matter
Amount standard"In III class water standard limit value requirement.
Embodiment two
Using the preparation method of the ecological revetment of dredged mud in-situ solidifying, include the following steps:
(1)By using existing stir in situ equipment, the bed mud in river bank bottom of slope portion is subjected to stir in situ solidification and is flattened, in water
Base plinth of the middle natural curing as ecological bank protection structure system;
(2)Supporting imitation wood stake shore protection template on the basis of bottom in water recycles machinery to inhale mud equipment and korneforos dredged mud is sucked vehicle
It carries in agitating device, dredged mud is stirred in vehicle-mounted agitating device and consolidating agent, microorganism colonization is added by metering system
Porous lime-ash, foaming agent and rheological agent are sufficiently stirred and are modulated into the curing sludge soil paste feed liquid with mobility;
(3)It is transported in the good imitation wood stake shore protection template of supporting by pumping installations, natural Health preservation after 7 days in water after artificial leveling
Form removal is prepared into ecological revetment.
In curing sludge soil paste feed liquid, each component mass parts are that 15 parts of silt consolidation agent, 70 parts of dredged mud, microorganism are hung
13 parts of the porous lime-ash of film, 1 part of foaming agent, 1 part of rheological agent;Silt consolidation agent be it is a kind of under restoration of the ecosystem environment-friendly type water regardless of
Scattered silt mud consolidating agent, composition and mass ratio are shown in embodiment one.
Xiang Shuizhong is added formic acid, hyaluronic acid, 4- methylbenzyl alcohols and obtains mixed liquor, the biomass lime-ash that stalk is fired
It is added in mixed liquor, impregnates, rinses at 60 DEG C, is dry, obtaining the porous lime-ash of microorganism colonization;The mixed liquor contains body
Accumulate the 4- methylbenzyl alcohols that the formic acid of a concentration of 3.2 %, the hyaluronic acid that mass concentration is 2%, mass concentration are 0.8%, surplus
For water;The biomass lime-ash, mixed liquor mass ratio be 1: 2.5.
Dredged mud is tentatively mixed after car-mounted device measures by flow divider realization with consolidating agent, then through vehicle-mounted agitating device
Strong stirring mixes, and the two is made to be sufficiently mixed uniformly, to promote the trappings such as heavy metal more abundant, it is ensured that heavy metal etc. in bed mud
The stabilization effect of substance.
The present invention is used under restoration of the ecosystem environment-friendly type water preferable whole regardless of having after scattered silt mud consolidating agent curing sludge
Water resistant dispersibility, underwater coagulability, water resistant stream erosion, ecological, environmental protective is non-toxic, the features such as need not especially conserving.
By test, 28 days compression strength of ecological revetment prepared by the present invention is 1.2MPa, far more than existing mellow earth
The result of 0.5MPa;Porosity reaches 28%, has excellent absorption, exchange capacity;Dry density reaches 1.3g/cm3, it is specifically shown in
Table 2.
Ecological revetment performance prepared by 2 present invention of table
The 28 days compression strength 0.6MPa of shore protection prepared using the biomass lime-ash that stalk is fired, using existing acetic acid/alginic acid
28 days compression strength 0.8MPa of shore protection prepared by the biomass lime-ash that the stalk of sodium processing is fired, the water coefficient of stability 0.41 use
28 days compression strength 0.8MPa of shore protection that conventional polyvinyl alcohol/cement is prepared as silt consolidation agent, porosity 13%, frost resistance
Difference can not bear Frozen-thawed cycled.Fig. 1 is riverbank structural schematic diagram;Including road 1, mellow earth bank protection 2, mellow earth shore protection 3, river
Water 4 and substrate 5;As can be seen that the ecological revetment of the present invention is a kind of mellow earth ecological revetment, not only there is good hole
Rate, dry density etc. can effectively carry out the exchange of substance, energy, information, have significant edge effect, can be various aquatic
Biology provides the space of existence and procreation, while to improving bio-diversity, controlling soil erosion, poised river slope, regulate the climate
With beautify the environment;Especially also there is excellent mechanical property and water stability, frost resistance, scour resistance.
The raw material of the present invention is all existing product, such as sloping bank bed mud, dredged mud, biomass lime-ash and various chemistry originals
Material is all commercially available or is obtained according to usual manner.It is obvious to a person skilled in the art that showing the present invention is not limited to above-mentioned
The details of exemplary embodiment, and without departing from the spirit or essential characteristics of the present invention, it can be with other specific
Form realizes the present invention.Therefore, in all respects, the embodiments should be taken as exemplary, and it is unrestricted
Property, the scope of the invention being indicated by the appended claims rather than by the foregoing description, it is intended that by fall claim etc.
It is included within the present invention with all changes in the meaning and scope of important document.Any reference numeral in claim should not be regarded
To limit the claims involved.
Claims (10)
1. the preparation method of the ecological revetment based on dredged mud in-situ solidifying, which is characterized in that include the following steps:
(1)Sloping bank bed mud is subjected to stir in situ, solidification, natural curing, prepares substrate;
(2)The stake of supporting imitation wood is as shore protection template in substrate;
(3)Under stirring, silt consolidation agent, the porous lime-ash of microorganism colonization, foaming agent and rheological agent are added into dredged mud, is obtained
Curing sludge soil paste material;
(4)Curing sludge soil paste material is injected in shore protection template, by flattening, conserving, is obtained based on dredged mud in-situ solidifying
Ecological revetment.
2. the preparation method of the ecological revetment according to claim 1 based on dredged mud in-situ solidifying, which is characterized in that described
In curing sludge soil paste material, silt consolidation agent, mud, the porous lime-ash of microorganism colonization, foaming agent, rheological agent mass ratio be
(5%~15%):(70%~90%):(5%~15%):(0.1%~2%):(0.1%~2%).
3. the preparation method of the ecological revetment according to claim 1 based on dredged mud in-situ solidifying, which is characterized in that described
Silt consolidation agent includes alumino-silicate clinker, quick lime, desulfurated plaster, metakaolin, bentonite, waterproofing agent, anti-dispersant, suction
Attached dose, alkali-activator;The foaming agent is trepanning anion surfactant type foaming agent;The rheological agent is powdery polycarboxylic acid
Water-reducing agent;The preparation method of the porous lime-ash of microorganism colonization is that biomass lime-ash is added in mixed liquor, at 60 DEG C
It impregnates, rinse, is dry, obtaining the porous lime-ash of microorganism colonization;It is the formic acid of 3.2 %, matter that the mixed liquor, which contains volumetric concentration,
A concentration of 2% hyaluronic acid, the 4- methylbenzyl alcohols that mass concentration is 0.8% are measured, surplus is water;The biomass lime-ash mixes
The mass ratio for closing liquid is 1: 2.5.
4. the preparation method of the ecological revetment according to claim 3 based on dredged mud in-situ solidifying, which is characterized in that described
Waterproofing agent is polymer emulsion made of latex powder, phenolic resin, polyvinyl alcohol composite;The adsorbent is diatomite, phosphorus stone
The compound of ash and disodium ethylene diamine tetraacetate;The alumino-silicate clinker, quick lime, desulfurated plaster, metakaolin, swelling
Soil, waterproofing agent, anti-dispersant, adsorbent, alkali-activator mass ratio be(30%~40%):(10%~20%):(5%~10%):
(10%~20%):(5%~8%):(3%~8%):(1%~2%):(2%~5%):(2%~5%).
5. the preparation method of the ecological revetment according to claim 1 based on dredged mud in-situ solidifying, which is characterized in that step
(4)In, by flattening, conserving, shore protection template is finally removed, the ecological revetment based on dredged mud in-situ solidifying is obtained;It is described to support
Shield is natural curing 7 days.
6. the ecological revetment preparation method of curing sludge soil paste material, which is characterized in that include the following steps:
(1)Sloping bank bed mud is subjected to stir in situ, solidification, natural curing, prepares substrate;
(2)The stake of supporting imitation wood is as shore protection template in substrate;
(3)Under stirring, silt consolidation agent, the porous lime-ash of microorganism colonization, foaming agent and rheological agent are added into dredged mud, is obtained
Ecological revetment curing sludge soil paste material.
7. the preparation method of ecological revetment curing sludge soil paste material according to claim 6, which is characterized in that the solidification
In silt soil slurry, silt consolidation agent, mud, the porous lime-ash of microorganism colonization, foaming agent, rheological agent mass ratio be(5%~
15%):(70%~90%):(5%~15%):(0.1%~2%):(0.1%~2%);The silt consolidation agent includes that alumino-silicate is ripe
Material, quick lime, desulfurated plaster, metakaolin, bentonite, waterproofing agent, anti-dispersant, adsorbent, alkali-activator;The foaming agent
For trepanning anion surfactant type foaming agent;The rheological agent is powdery polycarboxylic acid water-reducing agent;The microorganism colonization is more
The preparation method of hole lime-ash is that biomass lime-ash is added in mixed liquor, impregnates, rinses at 60 DEG C, is dry, obtaining micro- life
The porous lime-ash of object biofilm;The mixed liquor contains the hyaluronic acid that volumetric concentration is the formic acid of 3.2 %, mass concentration is 2%, matter
A concentration of 0.8% 4- methylbenzyl alcohols are measured, surplus is water;The biomass lime-ash, mixed liquor mass ratio be 1: 2.5.
8. the preparation method of the ecological revetment according to claim 1 based on dredged mud in-situ solidifying prepare based on dredged mud
The ecological revetment of in-situ solidifying;According to claim 6, prepared by the preparation method of ecological revetment curing sludge soil paste material
Ecological revetment curing sludge soil paste material.
9. a kind of silt consolidation agent, which is characterized in that according to weight percent, the silt consolidation agent includes that mass ratio is(30%
~40%):(10%~20%):(5%~10%):(10%~20%):(5%~8%):(3%~8%):(1%~2%):(2%~5%):
(2%~5%)Alumino-silicate clinker, quick lime, desulfurated plaster, metakaolin, bentonite, waterproofing agent, anti-dispersant, absorption
Agent, alkali-activator;The waterproofing agent is polymer emulsion made of latex powder, phenolic resin, polyvinyl alcohol composite;The absorption
Agent is the compound of diatomite, phosphorus lime and disodium ethylene diamine tetraacetate.
10. application of the silt consolidation agent described in claim 9 in preparing the ecological revetment based on dredged mud in-situ solidifying;Right
It is required that application of 8 ecological revetments with curing sludge soil paste material in preparing the ecological revetment based on dredged mud in-situ solidifying.
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| CN110590316A (en) * | 2019-10-15 | 2019-12-20 | 中瀛港湾（厦门）建设工程有限公司 | Construction method of bank protection project |
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| CN110590316A (en) * | 2019-10-15 | 2019-12-20 | 中瀛港湾（厦门）建设工程有限公司 | Construction method of bank protection project |
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| CN116639946A (en) * | 2023-06-26 | 2023-08-25 | 王曦锐 | Sludge curing agent and sludge in-situ curing method |
| CN116589255A (en) * | 2023-07-14 | 2023-08-15 | 中国建筑第六工程局有限公司 | Pavement subbase material based on dredging sludge and preparation method thereof |
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| CN117003465B (en) * | 2023-08-17 | 2024-04-26 | 河海大学 | Two-stage curing method and system for reducing strength loss of cured sludge |
| CN117550821A (en) * | 2024-01-10 | 2024-02-13 | 石家庄铁道大学 | Plant-growing solid waste base polymer and preparation method and application thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108691301B (en) | 2020-09-29 |
| CN112301952B (en) | 2022-04-19 |
| CN112301952A (en) | 2021-02-02 |
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