Flexible water stop structure

Abstract

The invention discloses a flexible water stop structure. The flexible water stop structure comprises a first flexible water stop curtain wall for intercepting low-temperature water of the dead water zone in front of a reservoir water taking port and a second flexible water stop curtain wall for intercepting low-temperature water of the changing water zone in front of the reservoir water taking port. The first flexible water stop curtain wall is vertically fixed to the dead water zone and is perpendicular to the water flow direction, the bottom of the second flexible water stop curtain wall isconnected with the top of the first flexible water stop curtain wall, and the second flexible water stop curtain wall is located in the changing water zone and inclines towards the back position of the water flow direction relative to the first flexible water stop curtain wall. Accordingly, the first flexible water stop curtain wall intercepts the low-temperature water of the dead water zone, thesecond flexible water stop curtain wall intercepts the low-temperature water of the changing water zone, and a surface-layer high-temperature water body flows through the top of the second flexible water stop curtain wall. Through the zoned design of hanging and suspension structures, the acting force of a floating box and a cable net structure can be reduced, and the problem that due to frequentground dragging of a cable net film under water level changes, the life is short is solved.

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...

AI Technical Summary

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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