Safety plugging structure and mounting and demounting method thereof

Abstract

The invention discloses a mounting and demounting method of a safety plugging structure. The mounting and demounting method comprises the following steps that (1) raw materials are prepared, specifically, a pipeline needing to be plugged is measured according to the field environment, and required plugging raw materials are calculated; (2) first sand bags are piled, specifically, the raw materials are manually transmitted into the pipeline through an inspection well, and meanwhile, the sand bags are piled in the pipeline in the water flow direction; (3) a plugging block is constructed, specifically, the plugging block is constructed on the rear parts of the first sand bags in the water flow direction; (4) second sand bags are piled, specifically, the sand bags are piled on the rear part of the plugging block in the water flow direction; and (5) plugging demounting is conducted, specifically, through protection of the second sand bags, the upper half part of the plugging block is demounted, then the second sand bags are moved away in sequence, then through protection of the first sand bags, the lower half part of the plugging block is demounted, finally, the first sand bags are moved away in sequence, thus whole plugging demounting work can be completed, wherein the inner diameter of the pipeline is set to be H1, the piling height of the sand bags is set to be H2, the height of a plugging wall is H3, H1 is equal to H3, and H1 is greater than 2*H2.

Description

technical field [0001] The invention relates to the field of drainage engineering, in particular to a safety sealing structure and its installation and removal method. Background technique [0002] Drainage works refer to projects that collect and discharge human domestic sewage and various waste water in production, excess surface water and groundwater (reduce the groundwater table). The main facilities include drainage ditches or pipelines at all levels and their ancillary buildings. Depending on different drainage objects and drainage requirements, water pumps or other water lifting machinery, sewage treatment buildings, etc. can also be added. Mainly used in farmland, mines, towns (including factories) and construction sites, etc. [0003] However, in the construction of existing drainage works, due to various reasons such as connection of new and old pipes, closed water test, etc., the pipelines should be blocked. It is a rubber water-stop air bag. Although the brick ...

AI Technical Summary

Problems solved by technology

[0003] However, in the construction of existing drainage works, due to various reasons such as connection of new and old pipes, closed water test, etc., the pipelines should be blocked. It is a rubber water-stop air bag. Although the brick block is a thick brick wall, it can block the water in the pipe. The rubber water-stop air bag is used to seal the water in the pipe. The rubber air bag is installed in the pipe, and the rubber air bag is inflated to let the rubber air bag There is enough pressure with the pipe wall to achieve the purpose of sealing water, but during use or removal, due to the high water pressure, the wall will collapse, and sharp objects in the water will also break the rubber airbag, resulting in failure of sealing. Causing casualties and other accidents

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