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Method for secondarily solidifying dredger fill through mineralization/carbonization of streptomycete

A technology of filling soil and streptomyces, applied in soil protection, infrastructure engineering, construction and other directions, can solve the problems of high energy, high cost, consumption and so on

Inactive Publication Date: 2020-10-30
于孝牛
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  • Abstract
  • Description
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Problems solved by technology

Portland cement is a commonly used foundation stabilization material, but it consumes a lot of energy and costs a lot

Method used

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  • Method for secondarily solidifying dredger fill through mineralization/carbonization of streptomycete
  • Method for secondarily solidifying dredger fill through mineralization/carbonization of streptomycete
  • Method for secondarily solidifying dredger fill through mineralization/carbonization of streptomycete

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Embodiment Construction

[0045] The present invention will be further described in detail in conjunction with the following examples, wherein the specific examples described are only used to explain the present invention, and are not intended to limit the invention.

[0046] 1. Technical solution:

[0047] The method for streptomyces mineralization / carbonization secondary consolidation blow-fill provided by the invention comprises the following steps:

[0048] 1) stirring and mixing the streptomyces powder and the dredging fill;

[0049] 2) Embed a vacuum preloading system in the blow-fill area. The vacuum preloading system includes a vacuum pipeline switchably connected to the vacuuming device and the conveying device, and a drainage plate, which is connected to the vacuum pipeline;

[0050] 3) Vacuum preloading system is used to pump out the moisture in the dredger fill;

[0051] 4) Use the vacuum preloading system to transport CO to the dredging fill 2 ;

[0052] 5) After removing the sealing c...

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Abstract

The invention discloses a method for secondarily solidifying dredger fill through mineralization / carbonization of streptomycete. The method comprises the following steps of 1, stirring and mixing streptomycete powder and the dredger fill; 2, burying a vacuum preloading system in a pumping filling area, wherein the vacuum preloading system comprises a vacuum pipe and a drain board, the vacuum pipeis connected with a vacuum extraction device and a conveying device in a switchable manner, and the drain board is connected with the vacuum pipe; 3, pumping and draining water in the dredger fill through the vacuum preloading system; and 4, conveying CO2 to the dredger fill through the vacuum preloading system. By means of the method, strength of a soil body can be improved, and permeability is lowered.

Description

technical field [0001] The invention relates to a method for biologically solidifying soil, in particular to a method for mineralizing / carbonizing secondary consolidation of dredged fill soil by streptomyces. Background technique [0002] At present, the most common tidal reclamation mode in my country is the dredging method, that is, the silt and sea sand near the seabed or the port are filled into the reclamation area. In recent years, with the gradual depletion of sea sand resources, the dredger fill in most areas such as Zhejiang and Fujian is mainly silty soft soil, which often cannot meet the requirements of engineering construction at one time reinforcement, and is likely to cause excessive road settlement and construction engineering problems such as material instability, causing huge economic losses, and even threatening life safety. [0003] A large amount of engineering experience shows that the foundations of tidal flat reclamation areas often need secondary rei...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/12
CPCE02D3/12
Inventor 於孝牛
Owner 于孝牛
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