An airbag type drainage body and its construction method

Abstract

The invention provides an airbag type drainage body and its construction method, which is characterized in that it comprises a cylindrical airbag, several vertical plastic drainage boards are connected under the airbag, one end of the plastic drainage board is fixed on the airbag, and the other One end is connected to the drain board boot, and the pipe wall of the drain board boot is uniformly provided with permeable holes and wrapped with filter cloth outside the pipe wall of the drain board boot. The beneficial effects of the present invention are as follows: the drainage board boots are driven into the shallow surface layer at the bottom of the mud pool, the bottom of the drainage board is fixed in the shallow surface soil body, the top of the drainage board is connected with the air bag, and the filling soil is injected into the stockyard stage, and the plastic drainage board It can rely on the buoyancy of the airbag to keep it standing vertically in the mud pool; in the vacuum preloading stage, the gas in the airbag is pumped out, and the airbag will stick to the surface of the soil to form a local sealing layer to accelerate the drainage of mud.

Description

technical field [0001] The invention relates to an airbag-type drainage body and a construction method thereof. The drainage body is used for rapid drainage and reduction treatment of high water content mud, and is suitable for rapid dehydration treatment of supersoft soil such as high water content dredging silt and dredging filling mud. Background technique [0002] A large amount of dredged silt is produced every year in my country's inland waterways and lakes. Many stockyards are still in a swampy state for 3 to 5 years or even longer after dredging, and the bearing capacity is very low, which makes it difficult to restore the dredged mud stockpile in a short period of time, which is harmful to the environment. There is a certain amount of pollution and waste in land resources. How to quickly drain the dredged fill mud and realize the reduction treatment is also an urgent problem to be solved. [0003] At present, the treatment methods for dredging fill with high moistur...

AI Technical Summary

Problems solved by technology

It should be noted that dredging mud with high water content is generally in a flowing state, and it is difficult for personnel and equipment to construct in it; if plastic drainage boards are pre-installed, because the drainage boards are made of flexible materials, stable vertical drainage channels cannot be formed, which affects drainage. rate

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