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A method for electroosmotic drainage consolidation of electrode tubes

A technology of drainage consolidation and electrode tube, which is applied in soil protection, infrastructure engineering, construction, etc., can solve the problems of shortage, difficulty in guaranteeing electroosmosis efficiency and effect, and inability to fully exert the advantages of electroosmosis, so as to improve efficiency. , strong pertinence, guaranteed speed and effect

Active Publication Date: 2016-04-13
武汉谦诚环境技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the traditional electroosmotic method of electrification sometimes uses two methods of electrode switching and intermittent electrification, the determination of the electrode transition and intermittent electrification time is entirely based on experience; due to the complex characteristics of the soil, the experience of one site is not applicable. Another site, this makes the traditional electroosmosis method lack a clear design method for the power mode, and the efficiency and effect of electroosmosis are difficult to guarantee, so that the advantages of electroosmosis cannot be fully exerted

Method used

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  • A method for electroosmotic drainage consolidation of electrode tubes
  • A method for electroosmotic drainage consolidation of electrode tubes
  • A method for electroosmotic drainage consolidation of electrode tubes

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Experimental program
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Embodiment 1

[0039] Such as figure 1 As shown, the drainage area 1 is circular, and the plastic electrode tubes are evenly arranged in squares. The outermost layer 2 electrodes are negatively charged, and the boundary layer 3 is positively charged. The distance between the outermost layer 2 and the boundary layer 3 electrodes is 0.5m. The spacing is 1m, and the power supply adopts the steady flow mode with a current of 300A. All positive electrodes and negative electrodes in the boundary layer 3 are collected and connected to a voltmeter.

[0040] Use the test device MillerSoilBox to measure the soil resistivity and draw the curve, such as Figure 4 As shown, the moisture content is set to 52%;

[0041] Electrode electrification: Start the vacuum pump to discharge some free water in the soil. After the vacuum is stable, start the DC power supply to electrify the electrode. The electrode electrification method is:

[0042] (1) Reversing power supply at intervals: connect the inner elect...

Embodiment 2

[0048] Such as figure 1 As shown, the drainage area 1 is circular, and the plastic electrode tubes are evenly arranged in squares. The outermost electrode 2 is negatively charged, and the boundary layer 3 is positively charged. The distance between the outermost layer and the boundary layer electrodes is 0.75m. Negative and positive alternating currents are used in sequence, and the electrode spacing in the boundary layer 3 area is 1m. The power supply adopts a regulated power-on mode with a voltage of 80V. All the positive electrodes and negative electrodes in the boundary layer 3 are connected to the ammeter after being collected respectively.

[0049] Use the test device MillerSoilBox to measure the soil resistivity and draw the curve, such as Figure 4 As shown, the moisture content is set to 52%;

[0050] Electrode electrification: Start the vacuum pump to discharge some free water in the soil. After the vacuum is stable, start the DC power supply to electrify the elec...

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Abstract

An electrode tube electroosmosis drainage consolidation method, comprising the following steps: arranging the electrodes; arranging the pipeline; electrifying the electrodes; and stopping electroosmosis. Electrifying of the electrodes comprises the steps of: reversing electrification at intervals, continuous electrification, intermittent electrification, and repeating continuous electrification and intermittent electrification.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering, in particular to a method for electroosmotic drainage consolidation of electrode tubes. Background technique [0002] Soft soil, silt, sludge, tailings and other fine-grained media with high water content and low hydraulic permeability are very difficult to drain and consolidate. The traditional drainage consolidation methods are vacuum preloading and surcharge preloading. However, for fine-grained media with high water content and low hydraulic permeability, the traditional methods are slow, limited in depth, and insufficient in improving the bearing capacity. [0003] For soft soil foundations composed of such media, electroosmosis is a very potential method. It has been more than 200 years since electroosmosis was first discovered. The specific method is to insert a metal electrode in the soil and pass a direct current. Due to the action of the direct current electric field, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D3/11
CPCE02D3/10E02D3/11
Inventor 庄艳峰王有成杨宏武
Owner 武汉谦诚环境技术有限公司