Landscape barrage giving consideration to passage and construction method

Abstract

The invention discloses a landscape barrage giving consideration to passage and a construction method. The landscape barrage comprises a weir body and a weir body cross bar river channel; the weir body comprises an open upstream face, a stepped weir face and a weir base; a supporting structure is arranged at the open position of the upstream face and fixed to the weir bottom; a water retaining slope is arranged at the top end of the upstream face; steps are sequentially arranged downwards in the water flow direction of the weir face; the tail end of each step is provided with a protruding water blocking ridge; a water storage surface is formed between the adjacent upper step and lower step; the lower step is provided with an inverted arc-shaped jumping flow ridge; the steps and the jumping flow ridge are framed into empty boxes through reinforced concrete vertical plates; the empty boxes of the steps at the high position are tunnels passing through two banks; and the other empty boxes are all backfilled with fillers. The landscape barrage giving consideration to passage is suitable for an area with the high water storage elevation or an area with the steep topographic condition, a reinforced concrete vertical plate empty box structure can save the concrete consumption and reduce the weight of the weir body, and the overall structure is safe and stable. The upstream face of the barrage intercepts garbage, so that garbage pollution of a downstream river channel can be reduced, the downstream ecological environment is improved, and the tunnel of the barrage can facilitate passing of the two banks during flood.

Description

technical field [0001] The invention relates to the technical field of water conservancy engineering, in particular to a traffic-friendly landscape barrage and a construction method. Background technique [0002] Traditional weirs and dams, as low-head water retaining structures, generally use concrete solid weir bodies, which also play the role of water storage and irrigation under the premise of flood control. With the development of society and economy, landscape high barrages and dams have appeared in various places due to landscape requirements, that is, through the barrages and dams to raise the water level so as to achieve a better landscape effect in the upper reaches of the barrages, water steps are set on the upper part of the barrages. The traffic function connecting the two sides of the strait. [0003] However, the construction of high weirs and dams will increase the amount of concrete and engineering work required for the construction of the weirs and dams. D...

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Problems solved by technology

[0003] However, the construction of high weirs and dams will increase the amount of concrete and engineering work required for the construction of the weirs and dams. Due to the increased weight of the built high weirs and dams, the relative load of the foundation will be unstable, which will easily cause the imbalance of the weir body. On the other hand, the earthwork inside the weir body will Consolidation and settlement will lead to cracking of the weir surface, which is extremely dangerous

[0004] The facing surface of high barrages and dams is usually solid or open and closed. During the typhoon flood season, upstream garbage often passes through the barrages and dams to reach the downstream, polluting the downstream environment

In addition, when upstream water passes through the upstream surface, it will quickly confluence to form a peak value and stay downstream, severely scouring its surface and causing serious damage

[0005] The cross-water step structure can only meet the needs of cross-strait traffic when the water level is normal or low. When a flood occurs, the water level submerges the barrage and cannot play its important traffic role.

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