Discharging and drifting sluice and scouring sluice combined structure

Abstract

The invention relates to a discharging and drifting sluice and scouring sluice combined structure and belongs to the technical field of design of gate dam structures in the water conservancy and hydropower project. The discharging and drifting sluice and scouring sluice combined structure comprises a sluice hole, an overflow weir is arranged at the middle portion of the sluice hole, an overflow channel on the weir top of the overflow weir is a discharging and drifting channel, and the discharging and drifting channel is provided with a discharging and drifting sluice; a scouring channel is arranged between the bottom of the overflow weir and a sluice bottom plate, and the scouring channel is provided with a scouring sluice; the overflow weir is a concrete structure; and the sluice hole isprovided with an overhaul sluice on the upstream side of the overflow weir. By means of the discharging and drifting sluice and scouring sluice combined structure, due to the structural manner that the discharging and drifting sluice and the scouring sluice are combined to be arranged in the vertical direction, the total width of the discharging and drifting sluice and the scouring sluice is shortened, pivot arrangement is facilitated, especially in the narrow river valley gate dam engineering, the total width of a water blocking and discharging building can be reduced on the premise that thedischarging width is ensured, the pivot arrangement difficulty is lowered, and the project amount can be saved.

Description

technical field [0001] The invention relates to a combined structure of a drift gate and a sand washing gate, which belongs to the technical field of gate and dam structure design in hydropower and water conservancy projects. Background technique [0002] Drift gates and sand washing gates are important buildings often used in hydropower and water conservancy projects. The main function of drift gates is to discharge floating objects from upstream to downstream to prevent them from accumulating in the reservoir area. Outlet arrangement. The main function of the sand washing gate is to open the gate, use the water flow to wash away the sediment accumulated in front of the water inlet, reduce the silt elevation, and ensure the normal operation of the water inlet. It is generally arranged next to the water inlet. [0003] Drift gates and sand flushing gates are important buildings that make up hydropower and water conservancy projects. In order to ensure operational efficiency...

AI Technical Summary

Problems solved by technology

[0004] Due to their own operating characteristics, drift gates and sand flushing gates usually have limited flow capacity. The width occupied by the side by side arrangement of the two is relatively wide, and the efficiency is not high. Especially in projects in narrow river valleys, in order to ensure the discharge capacity, it is necessary to arrange enough The net width of the discharge often requires large excavation on both sides of the bank, resulting in a large amount of engineering

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