Vacuum preloading method and vacuum preloading device for water-air separation

Abstract

Disclosed are a vacuum preloading method and a vacuum preloading device for water-air separation. The vacuum preloading method includes that water-air separation pipelines, water-air separation tanks, a vacuumizing device and a water pumping device are mounted on the outer side of a vacuum sealing film, so that water pumped out from the soil mass of a soft ground treatment area and air are subjected to water-air separation in the water-air separation pipelines; the upper portions of the water-air separation pipelines are delivery channels for vacuum negative pressure and the air, and the water is allowed to flow into the water-air separation tanks along the lower portions of the water-air separation pipelines to be vacuumized and pumped through the vacuumizing device and the water pumping device respectively. A three-in-one type connecting device of plastic drainage plates and the water-air separation pipelines comprises a plastic drainage plate joint, a connecting pipe and a reducing-tee multipass joint, a bin-split type water-air separation tank is provided with an upper sealed cabin and a lower sealed cabin, and a gravity drainage type water-air separation tank comprises a tubular tank body and a drill bit, and a sinking pump is mounted at the lower end of the tank body. The vacuum preloading method and the vacuum preloading device have the advantages that vacuum preloading construction cost can be reduced, construction quality is improved, and construction period is shortened.

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 a vertical drainage channel: that is, insert a plastic drainage board vertically in the soft foundation treatment area; [0005] 2) Establish a horizontal drainage channel: 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 t...

AI Technical Summary

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

Images