Oblique weir device on the river

Abstract

The invention relates to an incline river dam, which is characterized in that: it comprises a discharge gate (1), a divert wall (2), an incline dam (3), a slope line (4), a slope protective line (5), a bank top line (6), a wing wall (7), a slope protective line (8), and straight section (9); the wing wall (7) is connected above the discharge gate (1), while the divert wall (2) is connected under; the horizontal direction of divert wall (2) has theta angle with the incline dam (3); the incline dam (3) is connected to the slope line (4) via the straight section (9); the bank top line (6) and the slope line (4) are connected via slope protective line (8), while the theta angle is between 30 and 60 degrees. The invention has simple structure and low cost, which can improve the discharge the overflow dam and reduce the width of discharge gate.

Description

Technical field: [0001] The invention relates to a gate and dam device for a river, in particular to an inclined weir device on a river. Background technique: [0002] At present, there are three unsatisfactory design schemes for the traditional gate and dam combined barrage headworks: first, the barrage intercepts the cross-section of the river channel, and the river is blocked, which significantly changes the natural flow of the river, not only It destroys the stability of the upstream and downstream rivers near the buildings, and due to the obstruction of the water flow, a local drop is formed, which will threaten the safety of the nearby beach and increase the risk of cutting the beach and diverting the channel; When the gate is opened, the single-width flow rate across the sluice greatly exceeds the single-width flow rate across the dam, causing a serious imbalance in the flow of the river channel and destroying the balance of erosion and sedimentation in the natural ri...

AI Technical Summary

Problems solved by technology

[0002] At present, there are three unsatisfactory design schemes for the traditional gate and dam combined barrage headworks: first, the barrage intercepts the cross-section of the river channel, and the river is blocked, which significantly changes the natural flow of the river, not only It destroys the stability of the upstream and downstream rivers near the buildings, and due to the obstruction of the water flow, a local drop is formed, which will threaten the safety of the nearby beach and increase the risk of cutting the beach and diverting the channel; When the gate is opened, the single-width flow rate across the sluice greatly exceeds the single-width flow rate across the dam, causing a serious imbalance in the flow of the river channel and destroying the balance of erosion and sedimentation in the natural river channel; third, siltation in front of the dam is inevitable, which will also increase backwater and affect the beach. shore security

It also brings trouble to project management and maintenance

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