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A plastic electrode tube for electroosmotic drainage

A technology of plastic pipe and drainage method, applied in soil protection, construction, infrastructure engineering, etc., can solve the problems of low drainage efficiency, affecting construction efficiency, weakening of electric field distribution, etc., to improve drainage efficiency, improve drainage efficiency, electric field Evenly distributed effect

Active Publication Date: 2016-08-24
武汉谦诚环境技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The former discloses a conductive plastic drainage board, a conductive plastic drainage board that can serve as a corrosion-resistant electrode and provide drainage and ventilation channels. Due to the small space of the drainage groove on the board, the drainage volume is very limited; the drainage board is due to its shape It is very inconvenient to arrange during construction, and its own strength is low, which affects the construction efficiency; after a period of time, the medium covers the surface of the filter membrane to block the filter holes, hindering the entry of water and reducing the drainage.
Moreover, the former has higher requirements on the mechanical properties of the filter membrane, otherwise the filter membrane sinking into the groove will reduce the space of the drainage groove and affect the drainage efficiency
The latter discloses a segmented conductive pipe, which meets the corrosion resistance required by the construction environment, but the direct connection of the power line to the conductive pipe causes the electric field to gradually weaken from top to bottom, and the drainage efficiency is low; and the conductive pipe is made of graphite Made of high-quality materials, the mechanical properties such as toughness and plasticity are poor, which further limits its application in engineering practice

Method used

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  • A plastic electrode tube for electroosmotic drainage
  • A plastic electrode tube for electroosmotic drainage
  • A plastic electrode tube for electroosmotic drainage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as Figure 1-3 As shown, in the present embodiment, the conductive plastic pipe 1 is made of materials including polyethylene, carbon black and graphite, and the resistivity is 10 -3 Ω·m. The conductive plastic pipe 1 is 6m long and is in the shape of a corrugated pipe 10. Annular grooves 5 and annular protrusions 8 extend from the bottom of the corrugated pipe 10 in a staggered arrangement to the top. The inner diameter of the conductive plastic pipe 1 is 20-50 cm. The thickness is 0.8-1mm, the 8 corrugated protrusions are 5mm apart, and the 5 annular grooves are 3mm deep.

[0040] The conductive plastic tube 1 includes two metal wires 2 located at symmetrical positions in the center of the tube. The metal wires 2 are wrapped in conductive plastic and run through the entire plastic electrode tube axially from top to bottom. The metal wire is copper wire with a diameter of 1mm.

[0041] Drainage holes 4 are evenly spaced on the annular protrusions 8 of the condu...

Embodiment 2

[0044] Such as Figure 4-5 As shown, in the present embodiment, the conductive plastic pipe 1 is made of materials including polyethylene, carbon black and graphite, and the resistivity is 10 -3 Ω·m. In this embodiment, the length of the conductive plastic pipe 1 is 8m, and the shape is a threaded pipe 11. The spiral grooves 6 and the spiral protrusions 9 are alternately arranged from the bottom of the outer wall of the conductive plastic pipe 1 to the top, and the inner diameter of the threaded pipe 11 is 25 ~ 55cm, the thickness of the pipe wall is 0.7-1mm, the distance between the spiral protrusions 9 is 4mm, and the spiral grooves 6 are about 2.5mm.

[0045] The conductive plastic pipe 1 includes four metal wires 2 arranged symmetrically about the axis inside the pipe. The metal wires are wrapped in the conductive plastic and run through the entire conductive plastic pipe 1 from top to bottom in the axial direction. Metal wire 2 is copper wire with a diameter of 1mm.

...

Embodiment 3

[0049] Such as Figure 6-7 As shown, in the present embodiment, the conductive plastic pipe 1 is made of materials including polyethylene, carbon black and graphite, and the resistivity is 10 -3 Ω·m. In this embodiment, the axial grooves 7 and axial protrusions 12 on the conductive plastic pipe 1 are evenly spaced along the circumference of the pipe and extend from the bottom to the top of the conductive plastic pipe 1. The length of the conductive plastic pipe 1 is 10 m, and the inner diameter is 25 ~ 50cm, the thickness of the pipe wall is 0.7-1.2mm, the distance between the grooves 7 is 3mm, and the depth of the groove is about 5mm.

[0050] The conductive plastic tube 1 includes two metal wires 2, which are arranged symmetrically about the axis inside the tube. The metal wires 2 are wrapped in the conductive plastic and run through the entire conductive plastic tube 1 from top to bottom in the axial direction. Metal wire 2 is copper wire with a diameter of 1.5mm.

[005...

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Abstract

The invention discloses a plastic electrode tube for electroosmotic drainage, which is characterized in that it comprises: a conductive plastic tube, a metal wire and a conductive geotextile filter layer, and the conductive plastic tube wall is provided with axial or radial There are at least two metal wires, the metal wires are distributed in the wall of the conductive plastic pipe and axially run through the entire conductive plastic pipe, the conductive geotextile filter layer wraps the conductive plastic pipe, and the conductive geotextile Drainage holes are evenly spaced on the outer wall of the plastic pipe. The invention has the advantages of simple structure, corrosion resistance, large drainage space, good mechanical properties, anti-silting and high drainage efficiency.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering, in particular to a plastic electrode tube used in an electroosmotic drainage method. 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 promising method. However, electroosmosis has a history of more than 200 years since it was first discovered. In the prior art, Chinese patent CN201210197981.4 and Chinese patent application 201310120362.X successively disclose two kinds of e...

Claims

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Application Information

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