Electroosmosis united air pressure separation device and technology

Abstract

The invention discloses an electroosmosis united air pressure separation device and technology. In the device, an anode is connected to an externally connected air pressure source on the basis of an electroosmosis device, and fumaroles are drilled within 1 / 2 of the bottom of the anode; the anode serves as a gas ejector pipe; a part of a cathode which enters into a to-be-processed soft clay part is provided with drain holes, and the cathode serves as a drain pipe. The electrodes of the device are distributed in the way of parallel staggered distribution. The technology comprises the steps of: spraying gas to the flexible clay through the anode 12-30 hours after the electroosmosis is performed, controlling the air pressure within 250 kPa to 400 kPa for 10-20 min, then spraying high-pressure gas every four times. According to the invention, the beneficial effects below are achieved: 1) the drainage amount and the soil anti-shearing intensity of the electroosmosis united air pressure separation technology is increased by 10-16% than a pure electroosmosis technology when the soft clay in the same batch and with the same volume are processed for the same time, and 2) the electroosmosis united air pressure separation technology is better to be conductive to the drainage consolidation of deep soil than the pure electroosmosis technology.

Description

technical field [0001] The invention relates to an electroosmosis combined gas pressure splitting device and a process thereof for soft soil foundation treatment. Background technique [0002] Electroosmosis is a ground treatment method that accelerates drainage consolidation by applying an electric field on electrodes inserted into the soil. Under the action of the electric field, the water in the soil flows from the anode to the cathode, and is discharged at the cathode. Because the drainage rate of the electroosmotic method has nothing to do with the hydraulic permeability coefficient of the soil, but is related to its electroosmotic permeability coefficient, it has good applicability for treating soil with high water content and low hydraulic permeability coefficient such as silt and dredging fill. to be taken seriously. However, the electroosmosis method has high energy consumption, poor economic benefits, and poor treatment effect on deep soil. These shortcomings lim...

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Problems solved by technology

However, the electroosmosis method has high energy consumption, poor economic benefits, and poor treatment effect on deep soil. These shortcomings limit the further development of the electroosmosis method.

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