Flocculation-horizontal drainage plate vacuum preloading combined multi-layer sealed geobag mud treatment technology and rapid mud treatment method

Abstract

The invention discloses a flocculation-horizontal drainage plate vacuum preloading combined multi-layer sealed geobag mud treatment technology. The technology comprises a sealed geobag and a geomembrane which are used for filling mud, the sealed geobag and the geomembrane have two splicing modes, among which one mode is that a layer of geomembrane is placed inside the sealed geobag and is tightlyattached to the inner side of the sealed geobag, and the other mode is that the geomembrane is wrapped around and seals the outer side of the geobag; a horizontal drainage system used for vacuumizingto drain water is arranged inside the sealed geobag, one end of the horizontal drainage plate is connected to a vacuum drainage pipeline, and the drainage pipeline penetrates through the sealed geobagthrough a flange plate to be connected to a vacuum pump used for pumping water in the sealed geobag; and mud comprises engineering waste slurry, river mud and industrial sludge. The horizontal drainage system is added into the sealed geobag, mud is dewatered in combination with a flocculating agent, the sealed geobag can be arranged in a multi-layer stacking mode, a stacking effect is formed on alower-layer structure through a dead weight of an upper layer, the drainage effect is faster, and the dewatering efficiency is higher.

Description

technical field [0001] The invention relates to the technical field of vacuum preloading method and sealed geotechnical bag drainage, in particular to a flocculation-horizontal drainage plate vacuum preloading combined multi-layer sealed geotechnical bag sludge treatment technology. The invention also relates to a rapid sludge treatment method implemented by adopting flocculation-horizontal drainage plate vacuum preloading combined with multi-layer sealed geotechnical bag sludge treatment technology. Background technique [0002] In the construction of construction projects, the most common problem is the treatment of river silt and engineering waste mud. The characteristics of these waste mud and silt, such as high moisture content, low strength, and strong fluidity, make the treatment very complicated. If not handled properly, It will not only seriously affect the construction progress of the project, but also pollute the environment. [0003] The existing sealing geotech...

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Problems solved by technology

[0002] In the construction of construction projects, the most common problem is the treatment of river silt and engineering waste mud. The characteristics of these waste mud and silt, such as high moisture content, low strength, and strong fluidity, make the treatment very complicated. If not handled properly, It will not only seriously affect the construction progress of the project, but also pollute the environment.

[0003] The existing sealing geotechnical bag treatment method is widely used. The sealed geotechnical bag is a large-scale film bag and inclusion made of high-strength geotextile. , and then gradually applied in environmental protection, agriculture and other fields, and is currently also used in some sludge treatment projects, but ordinary sealed geotechnical bags have some inherent defects in the treatment of pipeline sludge and engineering waste mud: first, only rely on the natural deposition and sealing of mud Geotechnical bags are stacked for drainage, the cycle is one to two months, the speed is too slow, the dehydration effect is not obvious enough, and the waste mud generated in the project cannot be processed relatively quickly, which will have a certain impact on the construction period and increase invisibly. A certain time cost and economic cost are incurred; secondly, only relying on the sealed geotechnical bag itself for mud treatment, the discharged water is relatively turbid and cannot be reused, and centralized treatment is required; moreover, ordinary sealed geotechnical bags can only be used once use, the production process is complex, consumes a lot of resources, and is not environmentally friendly, so it is necessary to study a newer multi-layer sealed geobag drainage method

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