Self-sealing drainage pipe and drainage method for vacuum consolidation treatment of fluid mud

Abstract

A self-sealing drainage pipe and a drainage method for vacuum consolidation treatment of fluid mud in the present invention include a blind ditch, a stretchable geotextile, an air bag and an air bag positioning device. The airbag positioning device divides the drainpipe into upper and lower parts, wherein the airbag is located inside the upper part of the drainpipe and above the airbag positioning device. The top and bottom of the airbag positioning device are connected with stretchable geotextiles, and the bottom of the drainage pipe is provided with a pneumatic pipeline 1 and a pneumatic pipeline 2, and the pneumatic pipeline 2 communicates with the lower part of the drainage pipe, and the pneumatic pipeline One is connected with the airbag. With the vacuum consolidation treatment, the thickness of the silt is reduced, and the pressure in the upper and lower parts of the drainage pipe is adjusted, so that the positioning device can be inserted into the silt to achieve the effect of automatic sealing.

Description

technical field [0001] The invention belongs to the field of fluid mud treatment, in particular to a self-sealing drainage pipe and drainage method for vacuum consolidation treatment of fluid mud. Background technique [0002] Construction activities such as mixing piles and shield tunneling, sewage treatment in sewage treatment plants, and channel dredging will produce a large amount of engineering waste mud, sludge, dredging mud and other high-moisture fluid mud. These fluid muds are generally piled up in the yard. How to deal with these fluid muds, turn them into usable filling resources, and reduce the damage to the ecological environment caused by wastes is an urgent problem to be solved. [0003] Vacuum consolidation is a common method to deal with a large amount of fluid mud at present. This method is to install a drainage device in the silt, and turn on the vacuum, so that the water in the silt is discharged through the vertical drainage body under negative pressure...

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Problems solved by technology

[0004] At present, there are also hard pipes used as drainage bodies to deal with fluid mud (there are some patents in this area), but the upper part of the hard drain pipe is open, and no closed space can be formed in the pipe, so it can only be used for general use. Drainage body drainage treatment of fluid mud, can not be used for vacuum consolidation treatment of fluid mud

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