Water-gas separation vacuum pre-pressing method and device

Abstract

Water-air separation vacuum preloading method and device, install water-air separation pipeline, water-air separation tank, vacuum device and pumping device outside the vacuum sealing membrane, so that the water and air extracted from the soil in the soft foundation treatment area The water and gas separation is carried out in the gas separation pipeline, and the upper part of the water and gas separation pipeline becomes the transmission channel of vacuum negative pressure and air, so that the water flows into the water and gas separation tank along the lower part of the water and gas separation pipeline, and is pumped by the vacuum device respectively. Vacuum and pumping device pumps water. A three-piece connection device for a plastic drainage board and a water-gas separation pipeline that implements the vacuum preloading method for water-gas separation, including a plastic drain board joint, a connecting pipe, and a multi-way joint with different diameters, a compartment-type water-gas separation tank An upper sealing chamber and a lower sealing chamber are provided, and a gravity drainage water-gas separation tank includes a tubular tank body and a drill bit, and a submersible pump is installed at the lower end of the tank body. The invention has the beneficial effects of reducing the vacuum preloading construction cost, improving the construction quality and shortening the construction period.

Description

technical field [0001] The invention discloses a method and device for vacuum preloading soft ground treatment, in particular a vacuum preloading method and device for water and gas separation. Background technique [0002] Vacuum preloading soft ground treatment method is a widely used large-area soft ground treatment method. [0003] The main construction steps of the existing vacuum preloading soft ground treatment method are: [0004] 1. Establish vertical drainage channels: that is, insert plastic drainage boards vertically in the soft foundation treatment area; [0005] 2. Establish horizontal drainage channels: that is, lay medium-coarse sand, filter pipes, and vacuum pipes horizontally in the soft foundation treatment area, or only lay vacuum pipes horizontally and connect or overlap the vacuum pipes and plastic drainage plates; [0006] 3. Establish a vacuum preloading sealing system: construct a mud mixing pile sealing wall or excavate a sealing ditch around the ...

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Problems solved by technology

[0017] The main purpose of the present invention is to solve the problems of water-gas separation, water-gas transfer, and water-gas extraction in the vacuum preloading construction process, and use the water-gas separation pipeline and water-gas separation tank outside the sealing film to carry out water-gas separation, and in the In the case of water-gas separation, the water can flow by itself along the lower space of the water-gas separation pipeline, so that the upper space of the water-gas separation pipeline becomes a smooth channel for transmitting air and vacuum negative pressure, and the vacuum device is used respectively in the water-gas separation Pump out the air in the tank to generate vacuum negative pressure and use the pumping device to discharge the water in the water-gas separation tank to improve the effect of vacuum preloading soft ground treatment, reduce construction costs and shorten the construction period

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