CN108411891A - The method of the pre- cured barged-in fill of biological bacteria combined vacuum - Google Patents
The method of the pre- cured barged-in fill of biological bacteria combined vacuum Download PDFInfo
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- CN108411891A CN108411891A CN201810213622.0A CN201810213622A CN108411891A CN 108411891 A CN108411891 A CN 108411891A CN 201810213622 A CN201810213622 A CN 201810213622A CN 108411891 A CN108411891 A CN 108411891A
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- barged
- fill
- soil body
- drainpipe
- drain bar
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- 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
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of methods of the pre- cured barged-in fill of biological bacteria combined vacuum, include the following steps:A, vacuum preloading pipeline and device are buried;B, barged-in fill is transported in agitating device, while mixes bacillus subtilis powder and quick lime, then the barged-in fill being stirred is transported in hydraulic reclamation cylinder, the moisture in barged-in fill is discharged by drain bar, drainpipe;D, start conveying device to be transported to streptomyces microflavus solution in the soil body by drainpipe and drain bar, pump drainage is connect with delivery end with gas injection apparatus and is injected into carbon dioxide in the soil body by drainpipe and drain bar, so that streptomyces microflavus is decomposed and carbon sequestration is realized to carbon dioxide, the soil body is made further to cure;E, start vacuum extractor moisture is discharged from the soil body again.Method provided by the invention can more efficiently exclude the moisture-curing soil body, because the means of its biological treatment are smaller to environment harm.
Description
Technical field
The present invention relates to a kind of methods of the pre- cured barged-in fill of biological bacteria combined vacuum.
Background technology
The processing of traditional barged-in fill generally uses vacuum preloading drainage to carry out soil body draining and solidification, in order to strengthen solidification
And drainage effect, flocculant polyacrylamide is admixed in the soil body sometimes.But vacuum preloading stabilization by drainage method displacement has
Limit, and the primary curing effect of this method both is from the discharge of water, therefore solidification effect is general, and be made of chemical products being added
Flocculant after, be also easy to the soil body formed pollute.
Invention content
Technical problem to be solved by the invention is to provide a kind of method of the pre- cured barged-in fill of biological bacteria combined vacuum,
The draining and solidification of this method are more preferable and less to soil pollution.
For this purpose, the method for the pre- cured barged-in fill of biological bacteria combined vacuum provided by the invention, it is characterized in that:Including following
Step:
A, drain bar is buried in hydraulic reclamation cylinder, drain bar upper end connects drainpipe, and drainpipe passes through manifold and pump drainage and conveying
End connection, pump drainage are configured with conveying device and vacuum extractor with delivery end;
B, barged-in fill is transported in agitating device, while mixes bacillus subtilis powder and quick lime, then will be stirred
Barged-in fill is transported in hydraulic reclamation cylinder, and packing cloth is laid with above barged-in fill, stands barged-in fill 12-24h;
C, pump drainage is connect vacuum extractor with delivery end, starts vacuum extractor, by the moisture in barged-in fill by drain bar,
Drainpipe is discharged;
D, stop vacuum extractor, pump drainage is connect with delivery end with conveying device, start conveying device streptomyces microflavus is molten
Liquid is transported to by drainpipe and drain bar in the soil body, and conveying device is then stopped, and pump drainage and delivery end are filled with gas injection
It sets and connects and be injected into carbon dioxide in the soil body by drainpipe and drain bar, stand barged-in fill left and right for 24 hours, make thin yellow strepto-
Bacterium realizes carbon sequestration to carbon dioxide, and the soil body is made further to cure;
E, pump drainage is connect with delivery end with vacuum extractor, starts vacuum extractor and moisture is discharged from the soil body again.
The technique effect of the present invention:In the present invention, after vacuum preloading draining, gap is formed in barged-in fill, by blowing
Banket input bacillus subtilis powder and quick lime, and bioflocculation, and bacillus subtilis powder and life are carried out to the soil body
Lime, which generates calcium carbonate, makes the soil body obtain additional reinforcing;Also, after draining, flocculating and curing for the first time, by sequentially inputting
Streptomyces microflavus solution and carbon dioxide make streptomyces microflavus reach each of the soil body with carbon dioxide and streptomyces microflavus solution
Position(It is farther, wider that the gentle physical efficiency of contrast liquid gets at the position reached), and in the soil body everywhere solidified carbon dioxide
Carbon, so that the soil body is obtained secondary composite curing, it can thus be concluded that going out the pre- cured hydraulic reclamation of biological bacteria combined vacuum provided by the invention
The method pollution smaller of soil, solidification effect are more preferable.
Specific implementation mode
With reference to embodiments, the present invention will be described in further detail, described in specific embodiment only use
To explain the present invention, it is not used to limit invention.
The method of the pre- cured barged-in fill of biological bacteria combined vacuum provided by the invention, includes the following steps:
A, drain bar is buried in hydraulic reclamation cylinder, drain bar upper end connects drainpipe, and drainpipe passes through manifold and pump drainage and conveying
End connection, pump drainage are configured with conveying device and vacuum extractor with delivery end, and vacuum preloading drainage system is laid in barged-in fill
Belong to the scope of the prior art, the effect for focusing on the vacuum preloading water discharge method and the combination realization of other steps of the invention
Fruit;
B, barged-in fill is transported in agitating device, while mixes bacillus subtilis powder and quick lime, then will be stirred
Barged-in fill is transported in hydraulic reclamation cylinder, and packing cloth is laid with above barged-in fill, stands barged-in fill 12-24h;
C, pump drainage is connect vacuum extractor with delivery end, starts vacuum extractor, by the moisture in barged-in fill by drain bar,
Drainpipe is discharged;
D, stop vacuum extractor, pump drainage is connect with delivery end with conveying device, start conveying device streptomyces microflavus is molten
Liquid is transported to by drainpipe and drain bar in the soil body, and conveying device is then stopped, and pump drainage and delivery end are filled with gas injection
It sets and connects and be injected into carbon dioxide in the soil body by drainpipe and drain bar, stand barged-in fill left and right for 24 hours, make thin yellow strepto-
Bacterium realizes carbon sequestration to carbon dioxide, and the soil body is made further to cure;
E, pump drainage is connect with delivery end with vacuum extractor, starts vacuum extractor and moisture is discharged from the soil body again.
In order to further enhance drainage effect, in the step A:While burying the drain bar, in hydraulic reclamation cylinder
Interior insertion electrode bar, the upper end connection electrode of electrode bar;In the step D, electricity is first connected before conveying streptomyces microflavus solution
Pole carries out electric osmose processing to barged-in fill.Electric osmose facture can be after vacuum preloading draining, it may be difficult to which the moisture of discharge is further
Discharge, to promote draining and solidification effect.
Bacillus subtilis powder volume in above-mentioned steps B can account for 1,3,5,7,9, the 11% of barged-in fill gross mass.
Best effect results from:Barged-in fill moisture content accounts for the 7% of barged-in fill gross mass in 70-80%, bacillus subtilis powder volume
When, the flocculation of step B and solidification effect are best at this time.
Claims (4)
1. a kind of method of the pre- cured barged-in fill of biological bacteria combined vacuum, it is characterized in that:Include the following steps:
A, drain bar is buried in hydraulic reclamation cylinder, drain bar upper end connects drainpipe, and drainpipe passes through manifold and pump drainage and conveying
End connection, pump drainage are configured with conveying device and vacuum extractor with delivery end;
B, barged-in fill is transported in agitating device, while mixes bacillus subtilis powder and quick lime, then will be stirred
Barged-in fill is transported in hydraulic reclamation cylinder, and packing cloth is laid with above barged-in fill, stands barged-in fill 12-24h;
C, pump drainage is connect vacuum extractor with delivery end, starts vacuum extractor, by the moisture in barged-in fill by drain bar,
Drainpipe is discharged;
D, stop vacuum extractor, pump drainage is connect with delivery end with conveying device, start conveying device streptomyces microflavus is molten
Liquid is transported to by drainpipe and drain bar in the soil body, and conveying device is then stopped, and pump drainage and delivery end are filled with gas injection
It sets and connects and be injected into carbon dioxide in the soil body by drainpipe and drain bar, stand barged-in fill left and right for 24 hours, make thin yellow strepto-
Bacterium realizes carbon sequestration to carbon dioxide, and the soil body is made further to cure;
E, pump drainage is connect with delivery end with vacuum extractor, starts vacuum extractor and moisture is discharged from the soil body again.
2. the method for the pre- cured barged-in fill of biological bacteria combined vacuum according to claim 1, it is characterized in that:In the step
In rapid A:While burying the drain bar, electrode bar, the upper end connection electrode of electrode bar are inserted into hydraulic reclamation cylinder;The step
In rapid D, electrode is first connected before conveying streptomyces microflavus solution, electric osmose processing is carried out to barged-in fill.
3. the method for the pre- cured barged-in fill of biological bacteria combined vacuum according to claim 1 or 2, it is characterized in that:Withered grass
Bacillus bacterium powder volume accounts for 1,3,5,7,9, the 11% of barged-in fill gross mass.
4. the method for the pre- cured barged-in fill of biological bacteria combined vacuum according to claim 3, it is characterized in that:The hydraulic reclamation
Native moisture content accounts for the 7% of barged-in fill gross mass in 70-80%, bacillus subtilis powder volume.
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Cited By (3)
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---|---|---|---|---|
CN109339028A (en) * | 2018-10-24 | 2019-02-15 | 浙江大学宁波理工学院 | The soft clay processing unit and processing method of electric osmose joint cyclic microorganism slip casting |
CN110195431A (en) * | 2019-05-14 | 2019-09-03 | 汕头大学 | A kind of method that MICP combination vacuum pre-pressed joint plastic draining board reinforces deep weak soil |
CN111851464A (en) * | 2020-02-20 | 2020-10-30 | 於孝牛 | Method for mineralizing/carbonizing secondary consolidation dredger fill by streptomycete |
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CN105645709A (en) * | 2016-03-12 | 2016-06-08 | 上海大学 | Dissolved gas and reagent integrated vacuum preloading method |
CN105839613A (en) * | 2016-03-24 | 2016-08-10 | 河海大学 | Fast curing system used for dredger fill of offshore reclamation and operation method of fast curing system |
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CN102094414A (en) * | 2011-04-02 | 2011-06-15 | 河海大学 | Method for treating deep soft soil foundation by combining chemical electro-osmosis method and vacuum preloading method |
CN102815854A (en) * | 2012-08-28 | 2012-12-12 | 江苏江达生态科技有限公司 | Method for promoting rapid drying of dredged silt by microorganism |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109339028A (en) * | 2018-10-24 | 2019-02-15 | 浙江大学宁波理工学院 | The soft clay processing unit and processing method of electric osmose joint cyclic microorganism slip casting |
CN109339028B (en) * | 2018-10-24 | 2021-01-01 | 浙江大学宁波理工学院 | Soft clay treatment device and treatment method for electroosmosis combined microbial circulating grouting |
CN110195431A (en) * | 2019-05-14 | 2019-09-03 | 汕头大学 | A kind of method that MICP combination vacuum pre-pressed joint plastic draining board reinforces deep weak soil |
CN111851464A (en) * | 2020-02-20 | 2020-10-30 | 於孝牛 | Method for mineralizing/carbonizing secondary consolidation dredger fill by streptomycete |
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Application publication date: 20180817 |