Stratified Water Intake System for Rock-fill Concrete Gravity Dam

Abstract

The invention relates to a layered water intake system for a rockfill concrete gravity dam, comprising: a dam body, a shaft, a water intake structure, a support structure, an opening and closing gate, a lifting rope, a working room, a horizontal rail, an electric hoist, a hoist, and a bottom rail The vertical shaft is arranged on the inner side of the dam body, and the inner side of the vertical shaft is provided with a plurality of water intake structures. The top of the closed gate is connected with a hoisting rope, the top of the dam body is provided with a working room, the top of the hoisting rope protrudes from the inner bottom wall of the working room; There is a bottom rail, on which a hoist is slidably mounted, the electric hoist is used to drag the hoist to slide, and the top of the hoisting rope is detachably assembled between the winding drum of the hoist. The invention controls the lifting and closing of a plurality of opening and closing gates through one winch, and has the effects of reducing costs and shortening the construction period.

Description

technical field [0001] The invention relates to the technical field of rock-fill concrete gravity dams, in particular to a layered water intake system for rock-fill concrete gravity dams. Background technique [0002] Rockfill concrete gravity dam is a commonly used dam type in water conservancy projects, and it is mainly suitable for small and medium-sized reservoir projects in mountainous and mid-mountainous areas. [0003] Since the water quality of each layer of the reservoir is different, the purpose of stratified water intake is to select the best water layer and open water intakes at different depths for water intake. Such as figure 1 As shown, the inner surface of the existing rockfill concrete gravity dam is usually provided with a plurality of water intake structures 3 arranged at high and low intervals, and the adjacent water intake structures 3 are arranged at horizontal intervals, and the interior of each water intake structure 3 Water inlet pipes are provided...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: of course, the number of water intake structures is generally far more than 5 groups, and in many cases it will reach more than ten groups or even twenty groups. The cost of a hoist is still relatively high, and it is necessary to lay lines and increase the control system for each hoist during the installation process, resulting in an increase in cost, so it needs to be improved

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