Buoyancy self-control type inverted siphon and construction process thereof

Abstract

The invention discloses a buoyancy self-control type inverted siphon and a construction process thereof, and belongs to the field of pipelines. The buoyancy self-control type inverted siphon comprises a pipeline body, the pipeline body comprises a pipeline support body, the outer end of the pipeline support body is coated with a pipeline protection interlayer, and the outer end of the pipeline protection interlayer is fixedly connected with a vacuum water suction cavity; the outer end of the vacuum water suction cavity is fixedly connected with a waterproof protective layer, the outer end of the waterproof protective layer is fixedly connected with a pipeline outer surface protective layer, and the vacuum water absorption cavity is matched with the pipeline outer surface protective layer, so that the inverted siphon effectively absorbs water in a self-service manner in the construction process, the self-weight is increased, and therefore the blocking of buoyancy is reduced; and automatic sinking of the inverted siphon is effectively realized, the operation is simple and convenient, the construction efficiency is improved, the construction of constructors is effectively facilitated, the use of auxiliary parts is effectively reduced, the construction cost is reduced, and the economic benefit of the inverted siphon is effectively improved.

Description

technical field [0001] The invention relates to the field of pipelines, and more specifically relates to a buoyancy self-control type inverted siphon and a construction process thereof. Background technique [0002] When the drainage pipes encounter obstacles such as rivers, mountain streams, depressions or underground structures, they cannot be buried according to the original slope, but pass under the obstacles in a concave broken line. This kind of pipe is called an inverted siphon. The inverted siphon is composed of an inlet well, a descending pipe, a parallel pipe, an ascending pipe and an outlet well. When determining the route of the inverted siphon, it should pass perpendicularly to the obstacles as much as possible to shorten the length of the inverted siphon, and it should be laid in areas where the river bed and bank are relatively stable, not easily washed by water, and where the buried depth is small . [0003] There should be no less than two inverted siphons...

AI Technical Summary

Problems solved by technology

[0005] In the prior art, most of the inverted siphons are buried inside the river to reduce the damage to the inverted siphons caused by factors such as river water and improve the service life of the inverted siphons. In order to increase the weight of the inverted siphon when sinking, it is often necessary to use water bags, buoyancy sleeves or flush water into the inverted siphon, which is difficult to operate, reduces construction efficiency, and is not convenient for construction personnel

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