CN109267562A - The system and method that combined vacuum precompressed of flocculating handles reclaimed ground - Google Patents
The system and method that combined vacuum precompressed of flocculating handles reclaimed ground Download PDFInfo
- Publication number
- CN109267562A CN109267562A CN201810937161.1A CN201810937161A CN109267562A CN 109267562 A CN109267562 A CN 109267562A CN 201810937161 A CN201810937161 A CN 201810937161A CN 109267562 A CN109267562 A CN 109267562A
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- Prior art keywords
- drainage plate
- flocculation
- tank body
- reclaimed ground
- motor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/005—Soil-conditioning by mixing with fibrous materials, filaments, open mesh or the like
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
- E02D3/126—Consolidating by placing solidifying or pore-filling substances in the soil and mixing by rotating blades
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2103/00—Civil engineering use
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0053—Production methods using suction or vacuum techniques
Abstract
The invention discloses a kind of systems of flocculation combined vacuum precompressed processing reclaimed ground, including processing region, vertical drainage plate, transverse drainage plate and vacuum pump, the vertical drainage plate and transverse drainage plate are controlled to a vacuum pump each by drainpipe, geomembrane and geotextiles are equipped on the processing region, it is characterized in that: the processing region side is equipped with agitating device, the agitating device includes tank body, tank body upper end is equipped with entrance, lower end is equipped with the delivery pipe in registration process region, the delivery pipe is equipped with delivery pump, tank body side upper end is equipped with first motor, other side lower end is equipped with the second motor, the first rotating shaft of connection first motor is equipped in tank body, connect the second shaft of the second motor, the first rotating shaft lower part is equipped with electric pushrod, the first rotating shaft, stirring rod is equipped on second shaft and electric pushrod.The system can make mixture stirring more uniform.The invention also discloses a kind of methods of flocculation combined vacuum precompressed processing reclaimed ground.
Description
Technical field
The present invention relates to a kind of systems of flocculation combined vacuum precompressed processing reclaimed ground.
Background technique
With the development of China market economy, the demand of land resource increasingly increases, and many projects of cultivation are also rapidly
It carries out.Sea bed mud is widely used in project of cultivation as packing material between past many decades.But hydraulic reclamation becomes silted up
Mud has the characteristics that high-moisture percentage, high-compressibility and low bearing capacity, and the property for improving blowing-filling sludge is to compel in project of cultivation in eyebrow
Eyelash problem to be solved.Vacuum preloading is the method for improving blowing-filling sludge load-carrying capacity of soft soil foundation most common at present.Recently
Several years, with the development of new material and science and technology, this method was developed well, and plastic draining board uses so that vacuum pressure
Power can be good at being distributed in soil.Although this method relatively before method effect to get well, formed around drain bar
The penetrating power of earth pillar boundary weaken significantly, this makes the effect of vacuum method have a greatly reduced quality.
Barged-in fill flocculation is that flocculant or reagent with flocculation are added in barged-in fill, and it is pockets of that flocculation occurs
Effect, so that barged-in fill is capable of forming biggish particle, shortens the time of deposition, increases the hole between particle, thus
Increase the effect of vacuum preloading.Particularly, inorganic flocculating agent (mainly molysite and aluminium salt) occurs in being added to barged-in fill
The effect of sweeping of net laying-volume hydrolyzes to form the hydration gold oxide precipitation of a large amount of stereochemical structures, and then these water and metal can be as porous
Net it is the same and shrink sedimentation, capture volume sweeps the turbidity particle of the colloidal particle in water and suspension.Organic flocculant is speculated to blow
In banketing, it may occur that adsorption bridging effect, when certain colloid by macromolecular chain one end adsorb while, macromolecular chain it is another
Another colloid has also been adsorbed at end, forms the floccule body of " colloid-macromolecule-colloid ", and this colloid will lead between colloid and colloid
It crosses polymer substance to be combined with each other, constitutes a kind of function served as bridge.Into barged-in fill flocculation can equally occur for Lime-Injecting,
After lime is put into barged-in fill, calcium ion can be ionized out rapidly, and soil particle surface is negatively charged, the adsorption of barged-in fill
Sodium ion can displace sodium ion since the binding ability of calcium ion is better than sodium ion, but due to calcium ion charge compared with
Height, the negligible amounts needed reduce the distance between soil particle so that the ionosphere thickness on soil particle surface reduces, and occur
Flocculation.But the addition of flocculant can not equally be fully solved in vacuum method earth pillar boundary osmotic energy around drain bar
It is also the first technical problem to be solved by the present invention that how the problem of power declines rapidly, barged-in fill and flocculant, which are uniformly mixed,.
With the propulsion of Urbanization Process In China, a large amount of building waste is produced in process of construction, according to statistics, China is every
The building waste that year generates is 15.5 hundred million ~ 2,400,000,000 tons.The generation rate of new building rubbish is 0.3 t/m2, removing generation rate is
1.3 t/m2, the productivity of transformation is 0.1 t/m2.It is all generally directly to transport untreated building waste in unit in charge of construction
Countryside is stacked or landfill, not only land occupation but also has wasted construction fund.According to statistics, it is 1 that the power-carrying of building waste is stacked in soil
Ten thousand tons/mu.According to calculating, soil of the China for building waste to be stacked is up to more than 20 ten thousand mu.The mode of stacking or landfill is not
Soil is only wasted, and reduces land quality, can not be cultivated.Although having forced to have carried out building early in building trade in 2004
Energy conservation is built, has promulgated " green building assessment standard " within 2006, has issued " green building action scheme " within 2013, still, I
State is upper at the forefront in the world in the generation of construction waste, and discarded concrete recovery utilization rate only has 5%, this is sustainable with China
The strategic objective of development is runed counter to.It is chiefly used in the manufacture of regenerated aggregate concrete after building waste classification processing, in its other party
Using less, this is insufficient to the utilization of building waste resource in face.
Summary of the invention
In view of the deficiency of background technique, technical problem to be solved by the invention is to provide a kind of stirring of mixture is more equal
Flocculation combined vacuum that is even, saving a large amount of natural sand stones, building waste is utilized and increases the Penetration Signature of barged-in fill is pre-
The system and method for pressure processing reclaimed ground.
For this purpose, the present invention is following technical solution to realize:
A kind of system of flocculation combined vacuum precompressed processing reclaimed ground, including processing region, vertical drainage plate, transverse drainage
Plate and vacuum pump, the vertical drainage plate and transverse drainage plate are controlled to a vacuum pump each by drainpipe, the processing region
On be equipped with geomembrane and geotextiles, it is characterized in that: the processing region side is equipped with agitating device, the agitating device includes
Tank body, tank body upper end is equipped with entrance, lower end is equipped with the delivery pipe in registration process region, and the delivery pipe is equipped with delivery pump, institute
It states tank body side upper end and is equipped with the second motor equipped with first motor, other side lower end, the of connection first motor is equipped in tank body
One shaft, the second shaft for connecting the second motor, the first rotating shaft lower part are equipped with electric pushrod, the first rotating shaft, second
Stirring rod is equipped on shaft and electric pushrod.
Helical blade is equipped in the electric pushrod and the second shaft.
The junction of the first rotating shaft and electric pushrod is equipped with waterproof telescopic.
The stirring rod both ends are equipped with tup.
A method of flocculation combined vacuum precompressed handles reclaimed ground, characterized in that the following steps are included:
Step 1: barged-in fill and recycled aggregate are poured into agitating device and is stirred evenly；
Step 2: pouring into mixed flocculation agent in agitating device and stir evenly, and taking out the mixtures of different times, to test its close
Degree, the density error measured every time are no more than the 2% of the average value of overall measurement, are considered as and stir evenly；
Step 3: open delivery pump by the mixture in agitating device send in processing region until elevation location, is then arranged
Transverse drainage plate and vertical drainage plate, transverse drainage plate and vertical drainage plate are controlled to a vacuum pump each by drainpipe, then
It is laid with geotextiles and geomembrane, later on vacuum pump.
The mixed flocculation agent is by the polycation inorganic flocculating agent, anionic organic polymer coargulator and stone that are modified
Ash according to 8:1:2 ratio form, mixed flocculation agent incorporation according to barged-in fill mass percent (by dry weight) 1%-2%,
It is determined according to barged-in fill water content difference, is suitable for the barged-in fill of water content 95% ~ 187%.
The polycation inorganic flocculating agent of the modification is polyaluminum sulfate ferric-aluminum chloride, the anionic organic polymer
Flocculant is anion-polyacrylamide.
The recycled aggregate is handled by building waste and is generated, and the partial size of the recycled aggregate is 0-0.2mm, and recycled aggregate
Incorporation is according to the 10% of barged-in fill mass percent.
The invention has the following advantages that there are two shafts for tool in 1, tank body, make material stirring more evenly；2, electric pushrod can
Move up and down part stirring rod in tank body, more evenly by the material stirring of tank bottom, the phenomenon that reducing material accumulation；3,
It can make the steering of first rotating shaft and the second shaft on the contrary, turning to helical blade by setting first motor and the second motor
Also on the contrary, but material forms circulation stirring in tank body, the mixing uniformity of material is further enhanced；4, stirring rod both ends
Equipped with tup, the material that agglomeration is formed in whipping process can be crushed；5, processed building waste is first mixed into before hydraulic reclamation to change
The gradation of barged-in fill adds mixed flocculation agent and changes the property and structure of barged-in fill, so that being more suitable for using at vacuum preloading
Reason, saves a large amount of natural sand stones, and building waste is utilized, meets the requirement of greenery construction, meet engineering construction need
It wants, while also solving the problems, such as that the permeability native around transverse drainage plate and vertical drainage plate when vacuumizing is deteriorated.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the system that flocculation combined vacuum precompressed provided by the invention handles reclaimed ground.
Specific embodiment
Shown in referring to Fig.1, the system of flocculation combined vacuum precompressed processing reclaimed ground provided by the invention includes processing
Region 1, vertical drainage plate 2, transverse drainage plate 3 and vacuum pump 4, vertical drainage plate 2 and transverse drainage plate 3 are each by drainpipe
5 connect with vacuum pump 4, and geomembrane 6 and geotextiles 7 are equipped on processing region 1, and 1 side of processing region is equipped with agitating device, stirs
Mixing device includes tank body 8, and 8 upper end of tank body is equipped with entrance 9, lower end is equipped with the delivery pipe 10 in registration process region 1, in delivery pipe 10
Equipped with delivery pump 11,8 side upper end of tank body is equipped with first motor 12, other side lower end is equipped with the second motor 13, is equipped in tank body 8
It connects the first rotating shaft 14 of first motor 12, connect the second shaft 15 of the second motor 13,14 lower part of first rotating shaft is equipped with electronic
Push rod 16 is equipped with stirring rod 17, electric pushrod 16 and the second shaft on first rotating shaft 14, the second shaft 15 and electric pushrod 16
It is equipped with helical blade 18 on 15, the junction of first rotating shaft 14 and electric pushrod 16 is equipped with waterproof telescopic 19, stirring rod 17
Both ends are equipped with tup 20.
A method of flocculation combined vacuum precompressed handles reclaimed ground, characterized in that the following steps are included: step
One: barged-in fill and recycled aggregate are poured into agitating device and stirred evenly；Step 2: mixed flocculation agent is poured into agitating device
In and stir evenly, the mixture for taking out different times tests its density, and the density error measured every time is no more than overall measurement
The 2% of average value, is considered as and stirs evenly；Step 3: it opens delivery pump 11 and send the mixture in agitating device to processing region 1
Interior that transverse drainage plate 3 and vertical drainage plate 2 is then arranged up to elevation location, transverse drainage plate 3 and vertical drainage plate 2 are respective
It is connect by drainpipe 5 with vacuum pump 4, is then laid with geotextiles 7 and geomembrane 6, later on vacuum pump 4；Mixed flocculation agent
It is made of modified polycation inorganic flocculating agent, anionic organic polymer coargulator and lime according to the ratio of 8:1:2,
Mixed flocculation agent incorporation according to barged-in fill mass percent (by dry weight) 1%-2%, it is different really according to barged-in fill water content
It is fixed, it is suitable for the barged-in fill of water content 95% ~ 187%, modified polycation inorganic flocculating agent is polyaluminum sulfate ferric-aluminum chloride, institute
Stating anionic organic polymer coargulator is anion-polyacrylamide, and recycled aggregate is handled by building waste and generated, institute
The partial size for stating recycled aggregate is 0-0.2mm, and binder for regenerated leather is according to the 10% of barged-in fill mass percent.
In the present embodiment, there are two shafts for tool in tank body 8, make material stirring more evenly；Electric pushrod 16 can make part
Stirring rod 17 moves up and down in tank body 8, more evenly by the material stirring of tank bottom, the phenomenon that reducing material accumulation；Pass through
First motor 12 and the second motor 13, which is arranged, can make the steering of first rotating shaft 14 and the second shaft 15 on the contrary, making helical blade in turn
18 turn to also on the contrary, material can be made to form circulation stirring in tank body 8, further enhance the mixing uniformity of material；Stirring
17 both ends of bar are equipped with tup 20, can be crushed the material that agglomeration is formed in whipping process；Processed building is first mixed into before hydraulic reclamation
Rubbish changes the gradation of barged-in fill, adds mixed flocculation agent and changes the property and structure of barged-in fill, so that being more suitable for using true
Empty precompressed processing, saves a large amount of natural sand stones, and building waste is utilized, meets the requirement of greenery construction, meet work
Cheng Jianshe needs, while asking of being deteriorated of the permeability for also solving the soil around transverse drainage plate 3 and vertical drainage plate 2 when vacuumizing
Topic.
The mixed flocculation agent used in the present invention is by modified polycation inorganic flocculating agent, the organic high score of anionic
Sub- flocculant and lime are formed according to the ratio of 8:1:2, and incorporation is according to mass ratio (by dry weight) 1% ~ 2%, according to barged-in fill
Water content difference determines, is suitable for the barged-in fill of water content 95% ~ 187%, and modified polycation inorganic flocculating agent has than list
One aluminium salt and the good effect of the mixed flocculation agent of molysite, copolymerized iron-aluminium object are a kind of more effectively to combine the excellent of aluminium salt and molysite
Point increases flocculate specific gravity, accelerates flocculated speed, can by the mixing of this flocculant and organic polymer coargulator
To further increase effect.
Claims (8)
1. a kind of system of flocculation combined vacuum precompressed processing reclaimed ground, including processing region, vertical drainage plate, laterally row
Water plate and vacuum pump, the vertical drainage plate and transverse drainage plate are controlled to a vacuum pump each by drainpipe, the treatment region
Geomembrane and geotextiles are equipped on domain, it is characterized in that: the processing region side is equipped with agitating device, the agitating device packet
Tank body is included, tank body upper end is equipped with entrance, lower end is equipped with the delivery pipe in registration process region, and the delivery pipe is equipped with delivery pump,
Tank body side upper end is equipped with first motor, other side lower end is equipped with the second motor, and connection first motor is equipped in tank body
First rotating shaft, the second shaft for connecting the second motor, the first rotating shaft lower part are equipped with electric pushrod, the first rotating shaft, the
Stirring rod is equipped on two shafts and electric pushrod.
2. the system of flocculation combined vacuum precompressed processing reclaimed ground according to claim 1, it is characterized in that: the electricity
Helical blade is equipped in dynamic push rod and the second shaft.
3. the system of flocculation combined vacuum precompressed processing reclaimed ground according to claim 1 or 2, it is characterized in that: institute
The junction for stating first rotating shaft and electric pushrod is equipped with waterproof telescopic.
4. the system of flocculation combined vacuum precompressed processing reclaimed ground according to claim 1 or 2, it is characterized in that: institute
Stirring rod both ends are stated equipped with tup.
5. a kind of method of flocculation combined vacuum precompressed processing reclaimed ground, characterized in that the following steps are included:
Step 1: barged-in fill and recycled aggregate are poured into agitating device and is stirred evenly；
Step 2: pouring into mixed flocculation agent in agitating device and stir evenly, and taking out the mixtures of different times, to test its close
Degree, the density error measured every time are no more than the 2% of the average value of overall measurement, are considered as and stir evenly；
Step 3: open delivery pump by the mixture in agitating device send in processing region until elevation location, is then arranged
Transverse drainage plate and vertical drainage plate, transverse drainage plate and vertical drainage plate are controlled to a vacuum pump each by drainpipe, then
It is laid with geotextiles and geomembrane, later on vacuum pump.
6. the method for flocculation combined vacuum precompressed processing reclaimed ground according to claim 5, it is characterized in that: described mixed
Flocculant is closed by the polycation inorganic flocculating agent, anionic organic polymer coargulator and lime that are modified according to 8:1:2's
Ratio composition, mixed flocculation agent incorporation according to barged-in fill mass percent (by dry weight) 1%-2%, it is aqueous according to barged-in fill
Different determinations are measured, the barged-in fill of water content 95% ~ 187% is suitable for.
7. the method for flocculation combined vacuum precompressed processing reclaimed ground according to claim 6, it is characterized in that: described change
Property polycation inorganic flocculating agent be polyaluminum sulfate ferric-aluminum chloride, the anionic organic polymer coargulator be anion
Type polyacrylamide.
8. it is according to claim 5 flocculation combined vacuum precompressed processing reclaimed ground method, it is characterized in that: it is described again
Raw aggregate is handled by building waste and is generated, and the partial size of the recycled aggregate is 0-0.2mm, and binder for regenerated leather is according to hydraulic reclamation
The 10% of native mass percent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810937161.1A CN109267562A (en) | 2018-08-16 | 2018-08-16 | The system and method that combined vacuum precompressed of flocculating handles reclaimed ground |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810937161.1A CN109267562A (en) | 2018-08-16 | 2018-08-16 | The system and method that combined vacuum precompressed of flocculating handles reclaimed ground |
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| CN201810937161.1A Pending CN109267562A (en) | 2018-08-16 | 2018-08-16 | The system and method that combined vacuum precompressed of flocculating handles reclaimed ground |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110424369A (en) * | 2019-06-25 | 2019-11-08 | 温州大学 | A kind of level-vertical drainage plate-flocculation vacuum preloading process for treating sludge |
| CN111455974A (en) * | 2020-03-04 | 2020-07-28 | 温州大学 | Vacuum preloading flocculation drainage method for transverse drainage plate combined geotextile |
| CN112499920A (en) * | 2020-12-25 | 2021-03-16 | 中国电建集团华东勘测设计研究院有限公司 | Waste slurry dehydration and solidification treatment method |
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| CN105350585A (en) * | 2015-09-15 | 2016-02-24 | 温州大学 | Model test device and model test for injecting flocculating agent during dredger fill construction |
| CN205073935U (en) * | 2015-10-19 | 2016-03-09 | 长沙碧野生态农业科技有限公司 | Biax circulation agitating unit |
| CN205164591U (en) * | 2015-12-03 | 2016-04-20 | 南昌佰仕威新材料科技有限公司 | Carbide raw materials for production blending tank |
| CN106400776A (en) * | 2016-11-09 | 2017-02-15 | 浙江水利水电学院 | Drainage system of dredger fill of depressions and bottom vacuumizing and pre-pressing method |
| CN206566810U (en) * | 2017-03-23 | 2017-10-20 | 成都拿盛科技有限公司 | A kind of stirring apparatus |
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|---|---|---|---|---|
| CN105350585A (en) * | 2015-09-15 | 2016-02-24 | 温州大学 | Model test device and model test for injecting flocculating agent during dredger fill construction |
| CN205073935U (en) * | 2015-10-19 | 2016-03-09 | 长沙碧野生态农业科技有限公司 | Biax circulation agitating unit |
| CN205164591U (en) * | 2015-12-03 | 2016-04-20 | 南昌佰仕威新材料科技有限公司 | Carbide raw materials for production blending tank |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110424369A (en) * | 2019-06-25 | 2019-11-08 | 温州大学 | A kind of level-vertical drainage plate-flocculation vacuum preloading process for treating sludge |
| CN111455974A (en) * | 2020-03-04 | 2020-07-28 | 温州大学 | Vacuum preloading flocculation drainage method for transverse drainage plate combined geotextile |
| CN111455974B (en) * | 2020-03-04 | 2022-05-20 | 温州大学 | Vacuum preloading flocculation drainage method for transverse drainage plate combined geotextile |
| CN112499920A (en) * | 2020-12-25 | 2021-03-16 | 中国电建集团华东勘测设计研究院有限公司 | Waste slurry dehydration and solidification treatment method |
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