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Method for treating pickled soft base through industrial residues

A technology of industrial waste and soft foundation, applied in soil protection, infrastructure engineering, construction, etc., can solve the problems of not considering the characteristics of saline soft soil foundation, the treatment effect is not very ideal, and restricting the sustainable development of society, etc., to achieve The effect of reducing the dissolution and moisture absorption deformation, reducing the occupied space, and greatly increasing the water stability

Inactive Publication Date: 2016-03-16
ZHEJIANG INST OF COMM
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Problems solved by technology

At present, the coastal saline soft foundation is mainly treated by drainage board combined with surcharge preloading, lime compaction pile, high-pressure rotary grouting pile and other methods. Since the characteristics of saline soft soil foundation are not considered, the treatment effect is not very satisfactory.
[0003] On the other hand, industrial wastes such as calcium carbide slag, phosphogypsum, blast furnace slag, and alkali slag are produced in large quantities, which not only take up a lot of space, but also pollute the environment, destroy the ecology, and restrict the sustainable development of society.

Method used

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  • Method for treating pickled soft base through industrial residues
  • Method for treating pickled soft base through industrial residues

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Embodiment Construction

[0021] The following further illustrates through specific examples.

[0022] 1. Construction process

[0023] "Industrial waste slag jet mixing pile treatment of coastal saline soft foundation" construction process see figure 1 .

[0024] 1.1 Construction preparation

[0025] Avoid rainy season or bad weather when starting work. Make preparations for construction before starting construction and strengthen construction organization and management.

[0026] Allocate construction personnel, materials and mechanical equipment, and clarify construction methods, processes and procedures. At the same time, do a good job in safety and quality management, and do a good job in water and electricity.

[0027] 1.2 Leveling the site

[0028] Remove surface floating soil, thin layer of "skin" and various debris to ensure a clean and flat surface, which is convenient for construction machinery to enter the site. In case of concealed grooves, holes or local loose soil, they should be removed in time ...

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Abstract

The invention relates to a method for treating a pickled soft base through industrial residues. The method has the characteristics of being good in treating effect and capable of achieving waste recovery and protecting the environment. According to the technical scheme, the method for treating the pickled soft base through the industrial residues comprises the following steps that (1), staking out in survey is conducted on the levelled pickled soft base to determine stake positions; and (2) nail-shaped bidirectional stirring powder pile spraying construction is conducted, powder during the construction is composed of waste tire rubber powder and an industrial residue curing agent, the components are controlled, by mass, to be 67-73 parts of pickled soil, 17-23 parts of the waste tire rubber powder and 7-13 parts of the industrial residue composite curing agent; the industrial residue composite curing agent is composed of, by mass, 57-63 parts of acetylene sludge, 27-33 parts of flyash and 7-13 parts of excitants; and the excitant is MgO or / and Cao, and maintenance is conducted for seven days.

Description

Technical field [0001] The invention belongs to the treatment field of coastal saline soft soil foundation, and particularly relates to the treatment and reinforcement treatment construction of the saline soft foundation disease of highways and urban roads in coastal areas. Background technique [0002] With the implementation of my country's marine economic development strategy, construction tasks such as port dredging roads, tidal flat reclamation, and land reclamation have become increasingly onerous. The coastal foundation has been immersed in seawater for a long time and has the typical characteristics of saline soft soil. It not only has high water content, large void ratio, high compressibility, low shear strength, but also has salt swelling, swelling, corrosive and strong moisture absorption properties. At present, coastal saline soft foundations are mainly treated by drainage board combined with preloading, lime compaction piles, high-pressure jet grouting piles and oth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/12E02D3/08
CPCE02D3/08E02D3/123E02D2300/0003
Inventor 彭以舟邹胜勇陈晓波刘保库张义和
Owner ZHEJIANG INST OF COMM
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