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Soft soil foundation treated by chemical-solution-combined injection electroosmosis method and construction method of soft soil foundation

A technology of chemical solution and soft soil foundation, which is applied in basic structure engineering, soil protection, construction, etc., can solve the problems of long treatment period, large amount of building materials, and limited strength improvement of ordinary electroosmosis, and achieve shortening of electroosmosis. Processing time, simple construction process, and the effect of enhancing electrical conductivity

Active Publication Date: 2011-08-24
HOHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of large amount of construction materials and high processing cost when processing soft soil foundation with existing deep-layer mixing piles; the processing cycle of ordinary electroosmosis method is relatively long, and the strength after processing is limited, etc., to propose a combined Chemical Solution Injection Electroosmotic Method for Treating Soft Soil Foundation

Method used

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  • Soft soil foundation treated by chemical-solution-combined injection electroosmosis method and construction method of soft soil foundation
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  • Soft soil foundation treated by chemical-solution-combined injection electroosmosis method and construction method of soft soil foundation

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Embodiment Construction

[0025] The specific embodiments of the present invention are described in detail below with reference to the technical solutions and the accompanying drawings. The protection scope of the present invention is not limited to the description of this embodiment.

[0026] like figure 1 and figure 2 As shown, the lower part of the copper pipe 1 is symmetrically distributed with small holes 3 on all four sides, the upper part is coated with insulating paint 5 and provided with drainage / venting holes 4, the lower end is connected to the conical steel shoe 2, and the upper end is connected to the cable 11 and the insulating sheath 6 .

[0027] When implementing, first level the site, and set up fences and warning signs 12 around the treatment area; measure and pay off, and place the copper pipe 1 with tapered steel shoes 2 in the designated position to ensure the stability of the lifting equipment and the guide frame. The vertical declination angle with the ground is not more than...

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Abstract

The invention provides a soft soil foundation treated by chemical solution-combined injection electroosmosis method and a construction method of the soft soil foundation, and belongs to the technical field of processing of the soft soil foundation. A metal electrode is inserted into the soft soil foundation; different chemical solutions are injected into a positive electrode and a negative electrode respectively, and a direct current is fed; under a direct current field, water and a cation solution which have positive charges flow towards the negative electrode, and an ion solution with negative charges flows towards the positive electrode so as to form electroosmosis chemical reaction; at the same time, the water is pumped and discharged from the top of the negative electrode so as to reduce the water ratio in the soil, accelerate concretion and compaction of the soil, and enhance the strength of the soil; and precipitates produced by the chemical reaction can cement the soil particles. Compared with other soft soil foundation treatment methods, the construction method has the advantages of more environment friendliness, lower energy consumption and saved treatment cost, and large-size mechanical equipment and building materials such as cements, sand, stones and the like are not required. By the method, the construction process is simple, the operability is high, the quality is convenient to control and detect, and the intensity of the soil is enhanced obviously.

Description

technical field [0001] The invention relates to the technical field of soft soil foundation treatment, in particular to a combined chemical solution injection electroosmosis method to treat soft soil foundation and a construction method thereof. It is mainly suitable for engineering and technical fields such as soft foundation treatment of reclamation and reclamation in coastal tidal flats and depressions. Background technique [0002] With the rapid development of the national economy and infrastructure construction, reclaiming land from the sea is one of the effective ways to alleviate the shortage of land resources in coastal cities. Land reclamation is a good method for channel dredging and land formation, and it is also the main method for the formation of land reclamation in my country at present. Due to regional differences, the properties of the blown fill are different, but generally the moisture content is high, and the treatment cost required for the construction...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/11
Inventor 孔纲强
Owner HOHAI UNIV
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