Top-exposed radial gate system provided with stoplog type anti-flooding sliding gate leaf and gate opening and closing method

Abstract

The invention discloses an exposed-roof radial gate system provided with stoplog type anti-flooding sliding gate leaves and a gate opening and closing method. According to the main technical scheme, gate grooves are formed in gate piers on the two sides of an exposed-roof radial gate; a plurality of stoplog type sliding gate leaves, the first bottom water seal device is installed at the bottom of the stoplog gate leaf, the first side water seal devices are installed on the two sides of the upstream face of the stoplog gate leaf, the sliding mechanism is installed on the stoplog gate leaf and enables the stoplog gate leaf to slide in the gate groove, and the first transverse limiting mechanism is installed on the stoplog gate leaf. The top-exposed arc-shaped gate comprises an arc-shaped gate leaf and an arc-shaped side rail pre-buried on the side edge of the downstream gate pier; and the opening and closing device comprises a dam crest portal crane rotary hoisting mechanism for hoisting and placing the stoplog type gate leaf, two lifting driving mechanisms for enabling the stoplog type gate leaf to move up and down in the gate groove, and a radial gate opening and closing driving mechanism for driving the radial gate leaf to be opened and closed.

Description

technical field [0001] The invention relates to the technical field of water conservancy and hydropower engineering, in particular to an open-top arc-shaped gate system and a gate opening and closing method configured with stacked beam-type anti-flooding sliding gate leaves. Background technique [0002] At present, in the relevant specifications for the design of steel gates for water conservancy and hydropower, the water retaining height of the open-top arc gate is generally the normal water storage level plus the safety superelevation, and the top of the gate is strictly prohibited to pass through the water during operation. When encountering abnormal rainfall, failure of opening and closing equipment, failure of power supply or operation scheduling error, the water level of the reservoir rises above the normal water storage level and the gate is super high and the gate is not opened in time, the top of the gate will overflow and the gate will overflow. The water will hav...

AI Technical Summary

Problems solved by technology

In the event of abnormal rainfall, failure of opening and closing equipment, failure of power supply or operation scheduling error, the water level of the reservoir rises beyond the normal water storage level and the gate is super high and the gate is not opened in time, there will be water at the top of the gate, and the gate overflows. The water will cause a huge impact on the gate, and there is a lack of corresponding calculation formulas and test data in China. At this time, if the gate is opened blindly, it may cause damage to the gate and the opening and closing equipment, and the probability of successful opening is very small.

At this time, if the gates cannot be opened in time to release the flood, there will be a risk of dam overflow or dam failure, which will have a huge impact on the life safety and property loss of upstream and downstream residents.

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