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本文建立了平面比尺50、垂直比尺35的严家港泵闸工程闸下淤积物理模型,采用2014年7月实测水文资料开展了模型验证,同时对2009年3月至2014年5月的地形冲淤变化进行了验证。通过动床物理模型对拟建的严家港水闸导堤工程平面布置方案进行了试验研究。试验研究表明,闸下开挖引河后,在不建导堤情况下引河的月淤积量为1132 m~3,月淤积厚度为52cm;闸下引河两侧建100m导堤方案与无导堤方案相比引河淤积量减少近一半。因此,引河两侧建导堤非常必要,且多个方案比较导堤长度100m方案较优。
In this paper, physical model of sediment deposition at the gate of Yanjigang Pumping Gate project with plane scale 50 and vertical scale 35 was established. The model was verified by the hydrological data of July 2014. At the same time, from March 2009 to May 2014 Landscaping erosion changes were verified. Through the physical model of the movable bed, the plan of the plan of the guide bar of the Yanjiazhuang sluice has been studied. Experimental studies have shown that after the excavation of the river under the gate, the amount of silt deposited on the river is 1132 m 3 without dam construction, and the silt deposition thickness is 52 cm. The 100 m embankment scheme and the non-embankment scheme Compared with the river sedimentation reduced by nearly half. Therefore, it is very necessary to construct dike on both sides of the river, and the scheme of comparing several embankments with length of 100m is better.