Plastic electrode tube for electroosmotic drainage method

Abstract

The invention discloses a plastic electrode tube for an electroosmotic drainage method, which is characterized by comprising a conductive plastic tube, a metal wire and a conductive geotextile filtering layer; an axial or radial water guide groove is formed in the wall of the conductive plastic tube; the number of the metal wires is two at least, and the metal wires are symmetrically distributed in the tube wall of the conductive plastic tube and axially penetrate through the whole conductive plastic tube; the conductive plastic tube is enwrapped by the conductive geotextile filtering layer; drainage holes are uniformly formed in the outer wall of the conductive plastic tube at intervals. The plastic electrode tube has the advantages of simple structure, corrosion resistance, big drainage space, good mechanical property, anti-clogging 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...

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

Images