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| DOI：10.13522/j.cnki.ggps. 2023360 |
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| Study on the Influence of River Sluice on the Safety Operation on Railway Bridge in the Upstream |
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ZHANG Weijie, HAN Zhongkai, CUI Kui, AN Kaijun
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Water Resources Research Institute of Shandong Province, Jinan 250013, China
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| Abstract: |
| Based on the HEC-RAS model, the changes of water level, water flow and flow velocity at the upstream railway bridge site were calculated and analyzed under the conditions of gate fully-open, closed and collapsed. and Then the scour depth at the bridge site under each condition was calculated. The results showed that, compared to before the construction of the gate, the water level at the upstream bridge site increased after the gate was built, with the highest water level increased occurring when the gate cannot be opened, which was 10.7% higher than before the gate was built. When the gate breaking, the maximum water flow at the bridge site increases by 11.34%, the maximum average velocity increased by 11.11%, and the maximum scour depth of the river channel and beach increases, but it is allowable. The river sluice will not adversely affect the safe operation of the upstream railway bridge. The research results have great reference significance for similar engineering analysis. |
| Key words: HEC-RAS model; river sluice; railway bridge; scouring depth |
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