Flexible dam with aid of buoyancy and its construction method

Abstract

The flexible dam capable of elevating on its own buoyancy has the basic structure comprising dam body, foundation, anchor bolts and anchor rope. The dam body consists of light barrels tied to composite rubber-Chinlon canvas and is in one of two forms, the fixed form with lower part anchored to the structural underplate and the movable form with lower part of water resisting rough canvas layer. The movable dam may be constructed fast via assembling and combination and is used as floow controlling coffer dam or emergency son dam. The fixed dam may be constructed in river, lake, reservior, etc, and as tide blocking dam, construction coffer dam, etc.

Description

Technical field [0001] The invention relates to a flexible dam body, in particular to a flexible dam body that can rise and fall autonomously with the fluctuation of water level by virtue of its own buoyancy. The invention also relates to two different types of uses and construction methods of this flexible dam. Background technique [0002] In the patent application (application number 99112520.7) that I applied for on October 27, 1999 called "floating wall blocking system", a kind of movable flexible dam body by means of buoyancy --- floating wall, floating wall is disclosed According to Archimedes' law, a series of flexible dams that can be suspended in the water are formed by using multiple combined individuals in series. It is combined, with a water-retaining cloth attached to one side of the wall, the water-retaining cloth is folded over the bottom of the floating wall, and the lower part of the hammer body of the floating wall is completely wrapped; Water blocking l...

AI Technical Summary

Problems solved by technology

[0005] At the same time, the use of floating walls to construct flood control cofferdams also has some structural defects, that is: the upstream water pressure borne by the floating wall when retaining water is mainly borne by the floating body of the floating wall. If the floating body is an integral barrel If, as shown in the attached picture , a large stress is concentrated on the body of the barrel, and the higher the water blocking, the greater the stress, which will inevitably put forward higher requirements for the structure and material of the floating body. At the same time, this vertical The integral floating body structure is also not conducive to the buoyancy of the floating body when the floating wall retains water. Therefore, further improvement is needed

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