A flexible water-blocking structure

Abstract

The invention discloses a flexible water-blocking structure, comprising a first flexible water-blocking curtain wall for intercepting low-temperature water in a dead water area before a water intake of a reservoir, and a second flexible water-blocking curtain wall for intercepting low-temperature water in a changing water area before a water intake of a reservoir For the curtain wall, the first flexible water-blocking curtain wall is vertically fixed in the dead water area and perpendicular to the water flow direction, the bottom of the second flexible water-blocking curtain wall is connected to the top of the first flexible water-blocking curtain wall, and the second flexible water-blocking curtain wall is located area and is inclined towards the rear of the water flow relative to the first flexible water-blocking curtain wall. Thus, the first flexible water-blocking curtain wall intercepts low-temperature water in the dead water area, the second flexible water-blocking curtain wall intercepts low-temperature water in the changing water area, and the high-temperature surface water flows through the top of the second flexible water-blocking curtain wall. Suspension and suspension structure partition design can reduce the force of buoyancy tank and cable net structure, and solve the problem of low service life caused by frequent mopping of the cable net membrane under water level changes.

Description

technical field [0001] The invention belongs to the technical field of water conservancy and hydropower engineering, and in particular relates to a flexible water-blocking structure. Background technique [0002] In the construction of water conservancy and hydropower projects in river basins, some high dams and large reservoirs are often built to improve project efficiency. Due to the large storage capacity and slow flow velocity of the reservoirs, obvious temperature stratification will appear at the turn of spring and summer. However, due to the lower elevation of the water intake required by the hydropower station or the water intake discharge facility for power generation, the outlet water temperature of the reservoir is lower than the water temperature of the natural river, which causes the water temperature of the natural river below the dam to change, which affects farmland irrigation, industrial water supply, domestic water, and downstream river The water quality an...

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Problems solved by technology

[0005] (1) The water-proof flexible curtain walls are relatively large, with huge horizontal loads, and the whole is suspended on the pontoon or pontoon, which often results in the characteristics of large pontoon, thick longitudinal force transmission cable, and large underwater anchoring structure;

[0006] (2) The water-resistant curtain wall automatically rises and falls as the water level of the reservoir changes between the normal water storage level and the dead water level. The water level of the high dam and large reservoir has a large depth of cut, frequent ups and downs, and the lower curtain body is frequently mopped. And it is easy to damage the curtain body;

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