CN108824419A - The method of the vacuum pre-pressed joint biomineralization reinforcing High water cut soil body - Google Patents

The method of the vacuum pre-pressed joint biomineralization reinforcing High water cut soil body Download PDF

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Publication number
CN108824419A
CN108824419A CN201810667687.2A CN201810667687A CN108824419A CN 108824419 A CN108824419 A CN 108824419A CN 201810667687 A CN201810667687 A CN 201810667687A CN 108824419 A CN108824419 A CN 108824419A
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CN
China
Prior art keywords
soil body
high water
water cut
biomineralization
evacuation duct
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Pending
Application number
CN201810667687.2A
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Chinese (zh)
Inventor
於孝牛
余闯
钱春香
蔡晓庆
高燕
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Wenzhou University
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Wenzhou University
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Publication date
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Priority to CN201810667687.2A priority Critical patent/CN108824419A/en
Publication of CN108824419A publication Critical patent/CN108824419A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12Consolidating by placing solidifying or pore-filling substances in the soil
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02Improving by compacting
    • E02D3/10Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00Production methods
    • E02D2250/0053Production methods using suction or vacuum techniques

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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)
  • Cultivation Of Plants (AREA)

Abstract

The invention discloses the methods that the High water cut soil body is reinforced in vacuum pre-pressed joint biomineralization:A, the High water cut soil body is inputted into mud pit, then puts into bacillus subtilis powder and stirs evenly abundant flocculation;B, geotextiles are covered above mud pit and seal the soil body, will lay with the soil body, drain bar passes through geotextiles by evacuation duct system and connect with exhaust device, then carries out abundant pump drainage;C, it is connect by evacuation duct system with conveying device, silicate bacteria solution and carbon dioxide are transported in the soil body and are stood by evacuation duct and drain bar, exhaust device is connect with evacuation duct again and re-starts vacuum preloading draining, until the soil body sufficiently consolidates mineralising.The above method can combine biomineralization and vacuum preloading on the basis of bioflocculation, make the abundant consolidation and sclerosis of the soil body.

Description

The method of the vacuum pre-pressed joint biomineralization reinforcing High water cut soil body
Technical field
The present invention relates to a kind of methods of carbonate bacterium and phosphate bacterium composite deposition and consolidation pollution electroplating sludge.
Background technique
In the processing of traditional soil stabilization, vacuum preloading processing is generallyd use, but vacuum preloading processing is simply by subtracting Moisture and air in few soil body, make soil body densification, but the property of the soil body fails to change, and the degree of consolidation is lower.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of vacuum pre-pressed joint biomineralizations to reinforce the High water cut soil body Method, this method can pass through more environmentally-friendly mode more fully consolidated earth mass.
For this purpose, the method that the High water cut soil body is reinforced in vacuum pre-pressed joint biomineralization provided by the invention, including following step Suddenly:
A, the High water cut soil body is inputted into mud pit, then puts into bacillus subtilis powder and stirs evenly abundant flocculation;
B, geotextiles are covered above mud pit and seal the soil body, will lay with the soil body, drain bar is worn by evacuation duct system It crosses geotextiles to connect with exhaust device, then carries out abundant pump drainage;
C, connect with conveying device by evacuation duct system, by silicate bacteria solution and carbon dioxide pass through evacuation duct with Drain bar is transported in the soil body and stands, then exhaust device is connect with evacuation duct and re-starts vacuum preloading draining, until The soil body sufficiently consolidates mineralising.
Technical effect of the invention:It is flocculated, then carried out true to the soil body using bacillus subtilis powder in this method Empty precompressed makes the preliminary consolidation and sclerosis of the soil body, then molten to each position input silicate bacteria of the soil body by evacuation duct and drain bar Liquid and carbon dioxide make abundant carbon sequestration and mineralising in the soil body, further consolidate and promote hardness.
Specific embodiment
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 intended to limit the present invention.
The method that the High water cut soil body is reinforced in vacuum pre-pressed joint biomineralization provided by the invention:
A, the High water cut soil body is inputted into mud pit, then puts into bacillus subtilis powder and stirs evenly abundant flocculation;
B, geotextiles are covered above mud pit and seal the soil body, will lay with the soil body, drain bar is worn by evacuation duct system It crosses geotextiles to connect with exhaust device, then carries out abundant pump drainage;
C, connect with conveying device by evacuation duct system, by silicate bacteria solution and carbon dioxide pass through evacuation duct with Drain bar is transported in the soil body and stands, then exhaust device is connect with evacuation duct and re-starts vacuum preloading draining, until The soil body sufficiently consolidates mineralising.
It is 1% or 3% or 5% or 7% or 9% or 11% that bacillus subtilis powder, which accounts for the volume of soil body quality, in above-mentioned steps A. The optimum mix amount that the bacillus subtilis powder accounts for soil body quality is %7.
It is 1% or 3% or 5% or 7% that silicate bacteria, which accounts for the volume of soil body quality, in above-mentioned steps C.The silicate bacteria The optimum mix amount for accounting for soil body quality is 1%.

Claims (5)

1. a kind of method that the High water cut soil body is reinforced in vacuum pre-pressed joint biomineralization, it is characterized in that:Include the following steps:
A, the High water cut soil body is inputted into mud pit, then puts into bacillus subtilis powder and stirs evenly abundant flocculation;
B, geotextiles are covered above mud pit and seal the soil body, will lay with the soil body, drain bar is worn by evacuation duct system It crosses geotextiles to connect with exhaust device, then carries out abundant pump drainage;
C, connect with conveying device by evacuation duct system, by silicate bacteria solution and carbon dioxide pass through evacuation duct with Drain bar is transported in the soil body and stands, then exhaust device is connect with evacuation duct and re-starts vacuum preloading draining, until The soil body sufficiently consolidates mineralising.
2. the method that the High water cut soil body is reinforced in vacuum pre-pressed joint biomineralization according to claim 1:Withered grass in step A The volume that bacillus bacterium powder accounts for soil body quality is 1% or 3% or 5% or 7% or 9% or 11%.
3. the method that the High water cut soil body is reinforced in vacuum pre-pressed joint biomineralization according to claim 2:The withered grass bud The volume that spore bacillus bacterium powder accounts for soil body quality is 7%.
4. the method that the High water cut soil body is reinforced in vacuum pre-pressed joint biomineralization according to claim 1:Silicic acid in step C The volume that salt bacterium accounts for soil body quality is 1% or 3% or 5% or 7%.
5. the method that the High water cut soil body is reinforced in vacuum pre-pressed joint biomineralization according to claim 4:The silicate The volume that bacterium accounts for soil body quality is 1%.
CN201810667687.2A 2018-06-26 2018-06-26 The method of the vacuum pre-pressed joint biomineralization reinforcing High water cut soil body Pending CN108824419A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810667687.2A CN108824419A (en) 2018-06-26 2018-06-26 The method of the vacuum pre-pressed joint biomineralization reinforcing High water cut soil body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810667687.2A CN108824419A (en) 2018-06-26 2018-06-26 The method of the vacuum pre-pressed joint biomineralization reinforcing High water cut soil body

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Publication Number Publication Date
CN108824419A true CN108824419A (en) 2018-11-16

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111851464A (en) * 2020-02-20 2020-10-30 於孝牛 Method for mineralizing/carbonizing secondary consolidation dredger fill by streptomycete

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2873725A1 (en) * 2004-07-28 2006-02-03 Cie Du Sol Soc Civ Ile Procedure for soil consolidation, comprises using calcifying bacteria, nutrient solution(s) and denitrifying bacteria fed into the soil through boreholes round the zone to be consolidated
JP2008008023A (en) * 2006-06-29 2008-01-17 Hokkaido Univ Method of consolidating ground containing calcium, by using microorganisms
CN103214101A (en) * 2012-01-19 2013-07-24 中国中化股份有限公司 Microbial flocculating agent, and preparation and use thereof
CN103725288A (en) * 2013-12-16 2014-04-16 东南大学 Reagent for consolidating soil by utilizing carbonic anhydrase microbes and using method thereof
CN104674785A (en) * 2015-01-05 2015-06-03 王军 Method for treating dredger fill foundation through flocculation combined with vacuum preloading
CN105064325A (en) * 2015-07-30 2015-11-18 温州大学 Method for treating foundation through stirring flocculation dehydration and vacuum preloading jointly
CN106638554A (en) * 2017-01-05 2017-05-10 浙江大学宁波理工学院 Treatment method of soft clay foundation
CN106747176A (en) * 2016-11-16 2017-05-31 东南大学 A kind of novel gelled material and its preparation and application method with carbon sequestration capacity
CN107724375A (en) * 2017-11-07 2018-02-23 温州大学 The reclaimed ground processing method of vacuum drainage sand wick joint sand drain biology consolidation

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2873725A1 (en) * 2004-07-28 2006-02-03 Cie Du Sol Soc Civ Ile Procedure for soil consolidation, comprises using calcifying bacteria, nutrient solution(s) and denitrifying bacteria fed into the soil through boreholes round the zone to be consolidated
JP2008008023A (en) * 2006-06-29 2008-01-17 Hokkaido Univ Method of consolidating ground containing calcium, by using microorganisms
CN103214101A (en) * 2012-01-19 2013-07-24 中国中化股份有限公司 Microbial flocculating agent, and preparation and use thereof
CN103725288A (en) * 2013-12-16 2014-04-16 东南大学 Reagent for consolidating soil by utilizing carbonic anhydrase microbes and using method thereof
CN104674785A (en) * 2015-01-05 2015-06-03 王军 Method for treating dredger fill foundation through flocculation combined with vacuum preloading
CN105064325A (en) * 2015-07-30 2015-11-18 温州大学 Method for treating foundation through stirring flocculation dehydration and vacuum preloading jointly
CN106747176A (en) * 2016-11-16 2017-05-31 东南大学 A kind of novel gelled material and its preparation and application method with carbon sequestration capacity
CN106638554A (en) * 2017-01-05 2017-05-10 浙江大学宁波理工学院 Treatment method of soft clay foundation
CN107724375A (en) * 2017-11-07 2018-02-23 温州大学 The reclaimed ground processing method of vacuum drainage sand wick joint sand drain biology consolidation

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张甲耀等: "《环境微生物学》", 31 December 2008 *
赵森: "絮凝-真空预压加固吹填淤泥实验研究", 《岩石力学与工程学报》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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: 20181116

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